网页制作外文文献及翻译
JSP外文文献原稿和译
外文文献原稿和译文原稿JSPJSP (JavaServer Pages) is initiated by Sun Microsystems, Inc., with many companies to participate in the establishment of a dynamic web page technical standards. JSP technology somewhat similar to ASP technology, it is in the traditional HTML web page document (*. htm, *. html) to insert the Java programming paragraph (Scriptlet) and JSP tag (tag), thus JSP documents (*. jsp).Using JSP development of the Web application is cross-platform that can run on Linux, is also available for other operating systems.JSP technology to use the Java programming language prepared by the category of XML tags and scriptlets, to produce dynamic pages package processing logic. Page also visit by tags and scriptlets exist in the services side of the resources of logic. JSP page logic and web page design and display separation, support reusable component-based design, Web-based application development is rapid and easy.Web server in the face of visits JSP page request, the first implementation of the procedures of, and then together with the results of the implementation of JSP documents in HTML code with the return to the customer. Insert the Java programming operation of the database can be re-oriented websites, in order to achieve the establishment of dynamic pages needed to function.JSP and Java Servlet, is in the implementation of the server, usually returned to the client is an HTML text, as long as the client browser will be able to visit.JSP pages from HTML code and Java code embedded in one of the components. The server was in the pages of client requests after the Java code and then will generate the HTML pages to return to the client browser. Java Servlet JSP is the technical foundation and large-scale Web application development needs of Java Servlet and JSP support to complete. JSP with the Java technology easy to use, fully object-oriented, and a platform-independent and secure, mainly for all the characteristics of the Internet.JavaScript, which is completely distinct from the Java programming language, is normally used to dynamically generate HTML on the client, building parts of the Web page as the browser loads the document. This is a useful capability and does not normally overlap with the capabilities of JSP (which runs only on the server). JSP pages still include SCRIPT tags for JavaScript, just as normal HTML pages do. In fact, JSP can even be used to dynamically generate the JavaScript that will be sent to the client. So, JavaScript is not a competing technology; it is a complementary one.It is also possible to use JavaScript on the server, most notably on Sun ONE (formerly iPlanet), IIS, and BroadVision servers. However, Java is more powerful, flexible, reliable, and portable.JSP (a recursive acronym for "JSP: Hypertext Preprocessor") is a free, open-source, HTML-embedded scripting language that is somewhat similar to both ASP and JSP. One advantage of JSP is that the dynamic part is written in Java, which already has an extensive API for networking, database access, distributed objects, and the like, whereas PHP requires learning an entirely new, less widely used language. A second advantage is that JSP is much more widely supported by tool and server vendors than is JSP.Versus Pure Servlets.JSP doesn't provide any capabilities that couldn't, in principle, be accomplished with servlets. In fact, JSP documents are automatically translated into servlets behind the scenes. But it is more convenient to write (and to modify!) regular HTML than to use a zillion println statements to generate the HTML. Plus, by separating the presentation from the content, youcan put different people on different tasks: your Web page design experts can build the HTML by using familiar tools and either leave places for your servlet programmers to insert the dynamic content or invoke the dynamic content indirectly by means of XML tags.JSP technology strength(1) time to prepare, run everywhere. At this point Java better than PHP, in addition to systems, the code not to make any changes.(2)the multi-platform support. Basically on all platforms of any development environment, in any environment for deployment in any environment in the expansion. Compared ASP / PHP limitations are obvious.(3) a strong scalability. From only a small Jar documents can run Servlet JSP, to the multiple servers clustering and load balancing, to multiple Application for transaction processing, information processing, a server to numerous servers, Java shows a tremendous Vitality.(4) diversification and powerful development tools support. This is similar to the ASP, Java already have many very good development tools, and many can be free, and many of them have been able to run on a variety of platforms under.JSP technology vulnerable:(1) and the same ASP, Java is the advantage of some of its fatal problem. It is precisely because in order to cross-platform functionality, in order to extreme stretching capacity, greatly increasing the complexity of the product.(2) Java's speed is class to complete the permanent memory, so in some cases by the use of memory compared to the number of users is indeed a "minimum cost performance." On the other hand, it also needs disk space to store a series of. Java documents and. Class, as well as the corresponding versions of documents.Know servlets for four reasons:1. JSP pages get translated into servlets. You can't understand how JSP works without understanding servlets.2. JSP consists of static HTML, special-purpose JSP tags, and Java code. What kind of Java code? Servlet code! You can't write that code if you don't understand servlet programming.3. Some tasks are better accomplished by servlets than by JSP. JSP is good at generating pages that consist of large sections of fairly well structured HTML or other character data. Servlets are better for generating binary data, building pages with highly variable structure, and performing tasks (such as redirection) that involve little or no output.4. Some tasks are better accomplished by a combination of servlets and JSP than by either servlets or JSP alone.Versus JavaScriptJavaScript, which is completely distinct from the Java programming language, is normally used to dynamically generate HTML on the client, building parts of the Web page as the browser loads the document. This is a useful capability and does not normally overlap with the capabilities of JSP (which runs only on the server). JSP pages still include SCRIPT tags for JavaScript, just as normal HTML pages do. In fact, JSP can even be used to dynamically generate the JavaScript that will be sent to the client. So, JavaScript is not a competing technology; it is a complementary one.JSP is by no means perfect. Many people have pointed out features that could be improved. This is a good thing, and one of the advantages of JSP is that the specification is controlled by a community that draws from many different companies. So, the technology can incorporate improvements in successive releases.However, some groups have developed alternative Java-based technologies to try to address these deficiencies. This, in our judgment, is a mistake. Using a third-party tool like Apache Struts that augments JSP and servlet technology is a good idea when that tool adds sufficient benefit to compensatefor the additional complexity. But using a nonstandard tool that tries to replace JSP is a bad idea. When choosing a technology, you need to weigh many factors: standardization, portability, integration, industry support, and technical features. The arguments for JSP alternatives have focused almost exclusively on the technical features part. But portability, standardization, and integration are also very important. For example, the servlet and JSP specifications define a standard directory structure for Web applications and provide standard files (.war files) for deploying Web applications. All JSP-compatible servers must support these standards. Filters can be set up to apply to any number of servlets or JSP pages, but not to nonstandard resources. The same goes for Web application security settings.JSP six built-in objects:request, response, out, session, application, config, pagecontext, page, exception.ONE. Request for:The object of the package of information submitted by users, by calling the object corresponding way to access the information package, namely the use of the target users can access the information.TWO. Response object:The customer's request dynamic response to the client sent the data. THREE. session object1. What is the session: session object is a built-in objects JSP, it in the first JSP pages loaded automatically create, complete the conversation of management.From a customer to open a browser and connect to the server, to close the browser, leaving the end of this server, known as a conversation. When a customer visits a server, the server may be a few pages link between repeatedly, repeatedly refresh a page, the server should be through some kind of way to know this is the same client, which requires session object.2. session object ID: When a customer's first visit to a server on the JSP pages, JSP engines produce a session object, and assigned a String type of ID number, JSP engine at the same time, the ID number sent to the client, stored in Cookie, this session objects, and customers on the establishment of a one-to-one relationship. When a customer to connect to the server of the other pages, customers no longer allocated to the new session object, until, close your browser, the client-server object to cancel the session, and the conversation, and customer relationship disappeared. When a customer re-open the browser to connect to the server, the server for the customer to create a new session object.FORE. aplication target1. What is the application:Servers have launched after the application object, when a customer to visit the site between the various pages here, this application objects are the same, until the server is down. But with the session difference is that all customers of the application objects are the same, that is, all customers share this built-in application objects.2. application objects commonly used methods:(1) public void setAttribute (String key, Object obj): Object specified parameters will be the object obj added to the application object, and to add the subject of the designation of a keyword index.(2)public Object getAttribute (String key): access to application objects containing keywords for.FIVE. out targetsout as a target output flow, used to client output data. out targets for the output data.SIX. Cookie1. What is Cookie:Cookie is stored in Web server on the user's hard drive section of the text. Cookie allow a Web site on the user's computer to store information on and then get back to it.For example, a Web site may be generated for each visitor a unique ID, and then to Cookie in the form of documents stored in each user's machine.If you use IE browser to visit Web, you will see all stored on your hard drive on the Cookie. They are most often stored in places: c: \ windows \ cookies (in Window2000 is in the C: \ Documents and Settings \ your user name \ Cookies) Cookie is "keyword key = value value" to preserve the format of the record.2. Targets the creation of a Cookie, Cookie object called the constructor can create a Cookie. Cookie object constructor has two string parameters: Cookie Cookie name and value.Cookie c = new Cookie ( "username", "john");3. If the JSP in the package good Cookie object to send to the client, the use of the response.addCookie () method.Format: response.addCookie (c)4. Save to read the client's Cookie, the use of the object request getCookies () method will be implemented in all client came to an array of Cookie objects in the form of order, to meet the need to remove the Cookie object, it is necessary to compare an array cycle Each target keywords.译文JSPJSP(JavaServer Pages)是由Sun Microsystems公司倡导、许多公司参与一起建立的一种动态网页技术标准。
网站设计与实现中英文对照外文翻译文献
中英文对照外文翻译文献(文档含英文原文和中文翻译)H O L I S T I C W E B B R O W S I N G:T R E N D S O F T H E F U T U R EThe future of the Web is everywhere. The future of the Web is not at your desk. It’s not necessarily in your pocket, either. It’s everywhere. With each new technological innovation, we continue to become more and more immersed in the Web, connecting the ever-growing layer of information in the virtual world to the real one around us. But rather than get starry-eyed with utopian wonder about this bright future ahead, we should soberly anticipate the massive amount of planning and design work it will require of designers, developers and others.The gap between technological innovation and its integration in our daily lives is shrinking at a rate much faster than we can keep pace with—consider the number of unique Web applications you signed up for in the past year alone. T hishas resulted in a very fragmented experience of the Web. While running several different browsers, with all sorts of plug-ins, you might also be running multiple standalone applications to manage feeds, social media accounts and music playlists.Even though we may be adept at switching from one tab or window to another, we should be working towards a more holistic Web experience, one that seamlessly integrates all of the functionality we need in the simplest and most contextual way. With this in mind, l et’s review four trends that designers and developers would be wise to observe and integrate into their work so as to pave the way for a more holistic Web browsing experience:1.The browser as operating system,2.Functionally-limited mobile applications,3.Web-enhanced devices,4.Personalization.1. The Browser As Operating SystemThanks to the massive growth of Web productivity applications, creative tools and entertainment options, we are spending more time in the browser than ever before. The more time we spend there, the less we make use of the many tools in the larger operating system that actually runs the browser. As a result, we’re beginning to expect the same high level of reliability and sophistication in our Web experience that we get from our operating system.For the most part, our expectations have been met by such innovations as Google’s Gmail, Talk, Calendar and Docs applications, which all offer varying degrees of integration with one another, and online image editing tools like Picnik and Adobe’s on line version of Photoshop. And those expectations will continue to be met by upcoming releases, such as the Chrome operating system—we’re already thinking of our browsers as operating systems. Doing everything on the Web was once a pipe dream, but now it’s a reality.U B I Q U I T YThe one limitation of Web browsers that becomes more and more obvious as we make greater use of applications in the cloud is the lack of usable connections between open tabs. Most users have grown accustomed to keeping many tabs open, switching back and forth rapidly between Gmail, Google Calendar, Google Docs and various social media tools. But this switching from tab to tab is indicative of broken connections between applications that really ought to be integrated.Mozilla is attempting to functionally connect tools that we use in the browser in a more intuitive and rich way with Ubiquity. While it’s definitely a step in the right direction, the command-line approach may be a barrier to entry for thoseunable to let go of the mouse. In the screenshot below, you can see how Ubiquity allows you to quickly map a location shown on a Web page without having to open Google Maps in another tab. This is one example of integrated functionality without which you would be required to copy and paste text from one tab to another. Ubiquity’s core capability, which is creating a holistic browsing experience by understanding basic commands and executing them using appropriate Web applications, is certainly the direction in which the browser is heading.This approach, wedded to voice-recognition software, may be how we all navigate the Web in the next decade, or sooner: hands-free.T R A C E M O N K E Y A N D O G GMeanwhile, smaller, quieter releases have been paving the way to holistic browsing. This past summer, Firefox released an update to its software that includes a brand new JavaScript engine called TraceMonkey. This engine delivers a significant boost in speed and image-editing functionality, as well as the ability to play videos without third-party software or codecs.Aside from the speed advances, which are always welcome, the image and video capabilities are perfect examples of how the browser is encroaching on the operating system’s territory. Being able to edit images in the browser could replace the need for local image-editing software on your machine, and potentially for separate applications such as Picnik. At this point, it’s not certain how sophisticated this functionality can be, and so designers and ordinary users will probably continue to run local copies of Photoshop for some time to come.The new video functionality, which relies on an open-source codeccalled Ogg, opens up many possibilities, the first one being for developers who do not want to license codecs. Currently, developers are required to license a codec if they want their videos to be playable in proprietary software such as Adobe Flash. Ogg allows video to be played back in Firefox itself.What excites many, though, is that the new version of Firefox enables interactivitybetween multiple applications on the same page. One potential application of this technology, as illustrated in the image above, is allowing users to click objects in a video to get additional information about them while the video is playing.2. Functionally-Limited Mobile ApplicationsSo far, our look at a holistic Web experience has been limited to the traditional br owser. But we’re also interacting with the Web more and more on mobile devices. Right now, casual surfing on a mobile device is not a very sophisticated experiences and therefore probably not the main draw for users. Thecombination of small screens, inconsistent input options, slow connections and lack of content optimized for mobile browsers makes this a pretty clumsy, unpredictable and frustrating experience, especially if you’re not on an iPhone.However, applications written specifically for mobile environments and that deal with particular, limited sets of data—such as Google’s mobile apps,device-specific applications for Twitter and Facebook and the millions of applications in the iPhone App Store—look more like the future of mobile Web use. Because the mobile browsing experience is in its infancy, here is some advice on designing mobile experiences: rather than squeezing full-sized Web applications (i.e. ones optimized for desktops and laptops) into the pocket, designers and developers should become proficient at identifying and executing limited functionality sets for mobile applications.A M A Z O N M OB I L EA great example of a functionally-limited mobile application is Amazon’s interface for the iPhone (screenshot above). Amazon has reduced the massive scale of its website to the most essential functions: search, shopping cart and lists. And it has optimized the layout specifically for the iPhone’s smaller screen.FA C E B O O K F O R I P H O N EFacebook continues to improve its mobile version. The latest version includes a simplified landing screen, with an icon for every major function of the website in order of priority of use. While information has been reduced and segmented, the scope of the website has not been significantly altered. Each new update brings the app closer to replicating the full experience in a way that feels quite natural.G M A I L F O R I P H O N EFinally,Gmail’s iPhone application is also impressive. Google has introduced a floating bar to the interface that allows users to batch process emails, so thatt hey don’t have to open each email in order to deal with it.3. Web-Enhanced DevicesMobile devices will proliferate faster than anything the computer industry has seen before, thereby exploding entry points to the Web. But the Web will vastly expand not solely through personal mobile devices but through completely new Web-enhanced interfaces in transportation vehicles, homes, clothing and other products.In some cases, Web enhancement may lend itself to marketing initiatives and advertising; in other cases, connecting certain devices to the Web will make them more useful and efficient. Here are three examples of Web-enhanced products or services that we may all be using in the coming years:W E B-E N H A N C E D G R O C E RY S H O P P I N GWeb-connected grocery store “VIP” card s may track customer spending as they do today: every time you scan your customer card, your purchases are added to a massive database that grocery stores use to guide their stocking choices. In exchange for your data, the stores offer you discounts on selected products. Soon with Web-enhanced shopping, stores will be able to offer you specific promotions based on your particular purchasing history, and in real time (as illustrated above). This will give shoppers more incentive to sign up for VIP programs and give retailers more flexibility and variety with discounts, sales and other promotions.W E B-E N H A N C E D U T I L I T I E SOne example of a Web-enhanced device we may all see in our homes soon enough is a smart thermostat (illustrated above), which will allow users not only to monitor their power usage using Google PowerMeter but to see their current charges when it matters to them (e.g. when they’re turning up the heater, not sitting in front of a computer).W E B-E N H A N C E D P E R S O N A L B A N K I N GAnother useful Web enhancement would be a display of your current bank account balance directly on your debit or credit card (as shown above). This data would, of course, be protected and displayed only after you clear a biometric security system that reads your fingerprint directly on the card. Admittedly, this idea is rife with privacy and security implications, but something like this will nevertheless likely exist in the not-too-distant future.4. PersonalizationThanks to the rapid adoption of social networking websites, people have become comfortable with more personalized experiences online. Being greeted by name and offered content or search results based on their browsing history not only is common now but makes the Web more appealing to many. The next step is to increase the user’s control of their personal information and to offer more tools that deliver new information tailored to them.C E N T R A L I Z ED P R O F I LE SIf you’re like most people, you probably maintain somewhere between two to six active profiles on various social networks. Each profile contains a set of information about you, and the overlap varies. You probably have unique usernames and passwords for each one, too, though using a single sign-on service to gain access to multiple accounts is becoming more common. But wh y shouldn’t the information you submit to these accounts follow the same approach? In the coming years, what you tell people about yourself online will be more and more under your control. This process starts with centralizing your data in one profile,which will then share bits of it with other profiles. This way, if your information changes, you’ll have to update your profile only once.D ATA O W NE R S H I PThe question of who owns the data that you share online is fuzzy. In many cases, it even remains unaddressed. However, as privacy settings on social networks become more and more complex, users are becoming increasingly concerned about data ownership. In particular, the question of who owns the images, video and messages created by users becomes significant when a user wants to remove their profile. To put it in perspective, Royal Pingdom, inits Internet 2009 in Numbers report, found that 2.5 billion photos were uploaded to Facebook each month in 2009! The more this number grows, the more users will be concerned about what happens to the content they transfer from their machines to servers in the cloud.While it may seem like a step backward, a movement to restore user data storage to personal machines, which would then intelligently share that data with various social networks and other websites, will likely spring up in response to growing privacy concerns. A system like this would allow individuals to assign meta data to files on their computers, such as video clips and photos; this meta data would specify the files’ availability to social network profiles and other websites. Rather than uploading a copy of an image from your computer to Flickr, you would give Flickr access to certain files that remain on your machine. Organizations such as the Data Portability Project are introducing this kind of thinking accross the Web today.R E C O M M E N D AT I O N E N G I N E SSearch engines—and the whole concept of search itself—will remain in flux as personalization becomes more commonplace. Currently, the major search engines are adapting to this by offering different takes on personalized search results, based on user-specific browsing history. If you are signed in to your Google account and search for a pizza parlor, you will more likely see local results. With its social search experiment, Google also hopes to leverage your social network connections to deliver results from people you already know. Rounding those out with real-time search results gives users a more personal search experience that is a much more realistic representation of the rapid proliferation of new information on the Web. And because the results are filtered based on your behavior and preferences, the search engine will continue to “learn” more about you in order to provide the most useful information.Another new search engine is attempting to get to the heart of personalized results. Hunch provides customized recommendations of information based onusers’ answers to a set of questions for each query. The more you use it, the better the engine gets at recommending information. As long as you maintain a profile with Hunch, you will get increasingly satisfactory answers to general questions like, “Where should I go on vacation?”The trend of personalization will have significant impact on the way individual websites and applications are designed. Today, consumer websites routinely alter their landing pages based on the location of the user. Tomorrow, websites might do similar interface customizations for individual users. Designers and developers will need to plan for such visual and structural versatility to stay on the cutting edge.整体网页浏览:对未来的发展趋势克里斯托弗·巴特勒未来的网页无处不在。
英文文献及中文翻译_ASP.NET概述ASP.NETOverview
英文文献及中文翻译 Overview is a unified Web development model that includes the services necessary for you to build enterprise-class Web applications with a minimum of is part of the .NET Framework, and when coding applications you have access to classes in the .NET Framework.You can code your applications in any language compatible with the common language runtime (CLR), including Microsoft Visual Basic and C#. These languages enable you to develop applications that benefit from the common language runtime, type safety, inheritance, and so on.If you want to try , you can install Visual Web Developer Express using the Microsoft Web Platform Installer, which is a free tool that makes it simple to download, install, and service components of the Microsoft Web Platform.These components include Visual Web Developer Express, Internet Information Services (IIS), SQL Server Express, and the .NET Framework. All of these are tools that you use to create Web applications. You can also use the Microsoft Web Platform Installer to install open-source and PHP Web applications.Visual Web DeveloperVisual Web Developer is a full-featured development environment for creating Web applications. Visual Web Developer provides an ideal environment in which to build Web sites and then publish them to a hosting site. Using the development tools in Visual Web Developer, you can develop Web pages on your own computer. Visual Web Developer includes a local Web server that provides all the features you need to test and debug Web pages, without requiring Internet Information Services (IIS) to be installed.Visual Web Developer provides an ideal environment in which to build Web sitesand then publish them to a hosting site. Using the development tools in Visual Web Developer, you can develop Web pages on your own computer. Visual Web Developer includes a local Web server that provides all the features you need to test and debug Web pages, without requiring Internet Information Services (IIS) to be installed.When your site is ready, you can publish it to the host computer using the built-in Copy Web tool, which transfers your files when you are ready to share them with others. Alternatively, you can precompile and deploy a Web site by using the Build Web Site command. The Build Web Sitecommand runs the compiler over the entire Web site (not just the code files) and produces a Web site layout that you can deploy to a production server.Finally, you can take advantage of the built-in support for File Transfer Protocol (FTP).Using the FTP capabilities of Visual Web Developer, you can connect directly to the host computer and then create and edit files on the server. Web Sites and Web Application ProjectsUsing Visual Studio tools, you can create different types of projects, which includes Web sites, Web applications, Web services, and AJAX server controls.There is a difference between Web site projects and Web application projects. Some features work only with Web application projects, such as MVC and certain tools for automating Web deployment. Other features, such as Dynamic Data, work with both Web sites and Web application projects.Page and Controls FrameworkThe page and controls framework is a programming framework that runs on a Web server to dynamically produce and render Web pages. Web pages can be requested from any browser or client device, and renders markup (such as HTML) to the requesting browser. As a rule, you can use the samepage for multiple browsers, because renders the appropriate markup for the browser making the request. However, you can design your Web page to target a specific browser and take advantage of the features of that browser. Web pages are completely object-oriented. Within Web pages you can work with HTML elements using properties, methods, and events. The page framework removes the implementation details of the separation of client and server inherent in Web-based applications by presenting a unified model for responding to client events in code that runs at the server. The framework also automatically maintains the state of a page and the controls on that page during the page processing life cycle.The page and controls framework also enables you to encapsulate common UI functionality in easy-to-use, reusable controls. Controls are written once, can be used in many pages, and are integrated into the Web page that they are placed in during rendering.The page and controls framework also provides features to control the overall look and feel of your Web site via themes and skins. You can define themes and skins and then apply them at a page level or at a control level.In addition to themes, you can define master pages that you use to create a consistent layout for the pages in your application. A single master page defines the layout and standard behavior that you want for all the pages (or a group of pages) in your application. You can then create individual content pages that contain the page-specific content you want to display. When users request the content pages, they merge with the master page to produce output that combines the layout of the master page with the content from the content page. The page framework also enables you to define the pattern for URLs that will be used in your site. This helps with search engine optimization (SEO) and makes URLs more user-friendly.The page and control framework is designed to generate HTML thatconforms to accessibility guidelines. CompilerAll code is compiled, which enables strong typing, performance optimizations, and early binding, among other benefits. Once the code has been compiled, the common language runtime further compiles code to native code, providing improved performance. includes a compiler that will compile all your application components including pages and controls into an assembly that the hosting environment can then use to service user requests.Security InfrastructureIn addition to the security features of .NET, provides an advanced security infrastructure for authenticating and authorizing user access as well as performing other security-related tasks. You can authenticate users using Windows authentication supplied by IIS, or you can manage authentication using your own user database using forms authentication and membership. Additionally, you can manage the authorization to the capabilities and information of your Web application using Windows groups or your own custom role database using roles. You can easily remove, add to, or replace these schemes depending upon the needs of your application. always runs with a particular Windows identity so you can secure your application using Windows capabilities such as NTFS Access Control Lists (ACLs),database permissions, and so on.State-Management Facilities provides intrinsic state management functionality that enables you to store information between page requests, such as customer information or the contents of a shopping cart. You can save and manage application-specific, session-specific, page-specific, user-specific, and developer-defined information. This information can beindependent of any controls on the page. offers distributed state facilities, which enable you to manage state information across multiple instances of the same application on one computer or on several computers. 概述是一个统一的Web开发模型,它包括您使用尽可能少的代码生成企业级Web应用程序所必需的各种服务。
网页设计与制作外文翻译文献中英文
外文文献翻译(含:英文原文及中文译文)文献出处:Computer Knowledge & Technology, 2013,12(1):31-41英文原文Web design and productionM SiegelAbstractThe paper will study and discuss methods and tools for personal web page design and production. Based on the introduction of web design and production language, we focused on using JavaScript as a tool language for actual web page design and production. We used object-based JavaScript language, the use of internal object systems, and WEB page information interaction—window and framework. Describe it in detail and use specific examples for verification.Keywords: web page production, web design, software, html1 IntroductionWith the advent of the 21st century, people feel more and more deeply that the role of computers in life and work is more and more important. More and more professions need computer application skills. Mastering the need for computers is a career, but also the need for career development. Web design and production is a concrete manifestation of computer capabilities. This chapter mainly introduces related knowledgeof web design.1.1 Web Design OverviewA website is a way for companies to provide information (including products and services) to users and netizens. It is an infrastructure and information platform for companies to develop e-commerce. It is impossible to leave e-commerce (or just use a third-party website) to talk about e-commerce. . The company's web site is called the “Internet Trademark” and is also part of the company's intangible assets. The website is an important window on the Internet to promote and reflect corporate image and culture.1.2 Elements of Web DesignThe two major elements of web design are: overall style and color matching. First, determine the overall style of the siteChapter 2 Application of HTML Web Design Technology2.1 HTML language introductionHTML (HyperText Mark-up Language) is a hypertext markup language or hypertext markup language. It is the most widely used language on the Internet and the main language constituting webpage documents.HTML text is descriptive text composed of HTML commands. HTML commands can describe text, graphics, animations, sounds, forms, links, and so on. The structure of HTML includes two parts: the head andthe body. The head describes the information needed by the browser, and the body contains the specific content to be explained.2.1.1 Features of HTML LanguageHTML document production is not very complicated and powerful. It supports the inlaying of files in different data formats. This is one of the reasons for the popularity of the WWW. The features of the HTML language are as follows:1. Simplicity: The HTML version upgrade adopts a superset method, which is more flexible and convenient.2. Extensibility: The extensive use of HTML language has brought about enhanced functions, increased identifiers, and other requirements. HTML takes the form of sub-elements to provide guarantees for system expansion.3, platform independence. Although PCs are popular, there are plenty of other machines using MAC and so on. HTML can be used on a wide range of platforms, which is another reason why WWW is prevalent.2.1.2 HTML language editing softwareWrite it, too. However, use .htm or .html as an extension when saving, so that the browser can interpret it.2. Semi-WYSIWYG software, this software can greatly improve the development efficiency, it can enable you to make Homepage in a veryshort time, and you can learn HTML, this type of software mainly has HOTDOG, as well as domestic Software webpage workshop.3, WYSIWYG software, using the most extensive editor, you can completely do not know HTML knowledge to make web pages.2.2.3 JavaScript Technology Used in Web DesignOne, JavaScript OverviewJavaScript is an object-based and event-driven scripting language with safe performance. The purpose of using it is to implement linking multiple objects in a Web page together with HTML hypertext markup language and Java scripting language (Java applets) to interact with Web clients. This allows you to develop client applications and more. It is implemented by embedding or loading in the standard HTML language. Its appearance has made up for the shortcomings of the HTML language. It is a compromise between Java and HTML. It has the following basic features:1, is a scripting languageJavaScript is a scripting language that uses small blocks to program. Like other scripting languages, JavaScript is also an interpreted language that provides an easy development process.Its basic structure is very similar to that of C, C++, VB, and Delphi. But unlike these languages, it needs to be compiled first, but it is interpreted line by line during the execution of the program. It iscombined with HTML tags to make it easier for users to use.2, based on the language of the object.JavaScript is an object-based language that can be viewed as an object-oriented one. This means it can use the objects that it has already created. Therefore, many functions can come from the interaction of methods and scripts in the script environment.3, simplicityThe essence of HTML is text, which requires the interpretation of the browser. The HTML editor can be roughly divided into three types: 1. The basic editing software, which can be written using WINDOWS's own notebook or writing, of course, if you use WPS The simplicity of compiling JavaScript is mainly reflected in: First, it is a simple and compact design based on Java basic statements and control flow, which is a very good transition for learning Java. Second, its variable types are weakly typed and do not use strict data types.4, securityJavaScript is a security language. It does not allow access to the local hard disk. It does not store data on the server. It does not allow the modification or deletion of web documents. Information browsing or dynamic interaction can only be achieved through the browser. This effectively prevents data loss.5, dynamicJavaScript is dynamic. It can respond directly to user or customer input without going through a Web service program. It responds to the user's response in an event-driven manner. The so-called event-driven refers to an action that is performed by performing an operation in a Home Page. It is called an "Event". For example, pressing a mouse, moving a window, selecting a menu, etc. can all be considered events. When an incident occurs, it may cause a corresponding event response.6, cross-platformJavaScript is dependent on the browser itself, regardless of the operating environment, as long as it can run the browser's computer, and the JavaScript browser can be executed correctly. In order to achieve the "write once, travel the world" dream. In fact, the most outstanding thing about JavaScript is that you can do a lot of things with very small programs. Without high-performance computers, the software requires only a word processing software and a browser. It does not require a WEB server channel and can do everything through its own computer.In short, JavaScript is a new description language that can be tethered to HTML documents. The JavaScript language can respond to user's demand events (such as form input) without using any network to transfer data back and forth, so when a user enters a data, it does not pass it to the server (server). ) Processing, and then returned to the process, and can be directly handled by the client's application.The third chapter WEB page information interaction - form and frameTo realize the dynamic interaction of web pages, you must master more complex knowledge about form objects and frame objects.3.1 Form BasicsThe form object allows the designer to interact with the client user using different elements in the form, but without having to first perform data input, the behavior of the Web document can be changed dynamically.3.1.1 Form objectForm: It forms the basic element of a Web page. Usually a Web page has a form or several windows, using the Forms[] array to access different forms.3.1.2 Form Object MethodsThere is only one --submit() method for the form object. The main function of this method is to submit the form information. 3.1.3 Form Object PropertiesThe attributes of the window object mainly include the following: elements name action target encoding method. In addition to Elements, several others reflect the state of the corresponding attribute in the identity of the form, which is usually a single form identifier; elements are often an array of values for multiple form elements.3.1.4 Accessing a Form ObjectAccessing a form object in JavaScript can be implemented in two ways: (1) by accessing the formIn the properties of the form object, you must first specify the name of the form, and then you can access the form with the following ID: document.Mytable().(2) access the form through an arrayIn addition to using the form name to access the form, you can use the array of form objects to access the form object. However, it should be noted that because the form object is provided by the browser environment, the array index provided by the browser environment is from 0 to n.3.1.5 Prerequisites for Reference FormsThe condition for reference to a form in JavaScript is that the form must be created on the page with an identifier and the defined form part is placed before the reference.3.2 The basic elements in the formThe basic elements in the form consist of buttons, radio buttons, check buttons, submit buttons, reset buttons, text boxes, and so on. To access these basic elements in JavaScript, you must implement an array subscript or window element name that corresponds to a specific form element. Each element is primarily referenced by its attributes ormethods.3.3 FrameworkThe main function of the Frames Frames is the "split" window, so that each "small window" can display different HTM L files. Different frames can interact with each other. This means that different frames can exchange messages and data. For example: Suppose you have opened two frames. The first frame shows the book's directory. The second frame shows the chapter's specific content.The framework can divide the screen into different areas. Each area has its own URL. Frames[] array objects can be used to access different frameworks. In fact, the frame object itself is also a kind of window, which inherits all the features of the window object and possesses all the attributes and methods. The use of the framework of the specific instructions3.4 Framework AccessEarlier we introduced using document.forms[] to access different elements in a single form. To access different elements of a multiframe in a frame, you must use the Frames property in the window object. The Frames property is also an array. It has one item for each sub-frame in the parent frameset.3.5 Summary of this chapterThis chapter mainly introduces the main functions and uses of thebasic elements in the framework. The use of JavaScript scripts can be very convenient and flexible to implement more complex information interaction of Web pages. This is not what the HTML markup language can provide. Y ou can see from it that JavaScript is a good tool for the Web to involve people.中文译文网页设计与制作作者M Siegel摘要本文将对个人网页设计与制作的方法、工具等展开研究和探讨。
计算机 JSP web 外文翻译 外文文献
计算机 JSP web 外文翻译外文文献12.1 nEffective web n design involves separating business objects。
n。
and object XXX。
Although one individual may handle both roles on a small-scale project。
it is XXX.12.2 JSP ArchitectureIn this chapter。
XXX using JavaServer Pages。
servlets。
XXX of different architectures。
each building upon the us one。
The diagram below outlines this process。
and we will explain each component in detail later in this article.Note: XXX.)When Java Server Pages were introduced by Sun。
some people XXX。
While JSP is a key component of the J2EE n and serves as the preferred request handler and response mechanism。
it is XXX.XXX JSP。
the XXX that JSP is built on top of the servlet API and uses servlet XXX interesting ns。
such as whether we should XXX in our Web-enabled systems。
and if there is a way to combine servlets and JSPs。
jsp技术网站设计外文翻译(适用于毕业论文外文翻译+中英文对照)
Combining JSP and ServletsThe technology of JSP and Servlet is the most important technology which use Java technology to exploit request of server, and it is also the standard which exploit business application .Java developers prefer to use it for a variety of reasons, one of which is already familiar with the Java language for the development of this technology are easy to learn Java to the other is "a preparation, run everywhere" to bring the concept of Web applications, To achieve a "one-prepared everywhere realized." And more importantly, if followed some of the principles of good design, it can be said of separating and content to create high-quality, reusable, easy to maintain and modify the application. For example, if the document in HTML embedded Java code too much (script), will lead the developed application is extremely complex, difficult to read, it is not easy reuse, but also for future maintenance and modification will also cause difficulties. In fact, CSDN the JSP / Servlet forum, can often see some questions, the code is very long, can logic is not very clear, a large number of HTML and Java code mixed together. This is the random development of the defects.Early dynamic pages mainly CGI (Common Gateway Interface, public Gateway Interface) technology, you can use different languages of the CGI programs, such as VB, C / C + + or Delphi, and so on. Though the technology of CGI is developed and powerful, because of difficulties in programming, and low efficiency, modify complex shortcomings,it is gradually being replaced by the trend. Of all the new technology, JSP / Servlet with more efficient and easy to program, more powerful, more secure and has a good portability, they have been many people believe that the future is the most dynamic site of the future development of technology.Similar to CGI, Servlet support request / response model. When a customer submit a request to the server, the server presented the request Servlet, Servlet responsible for handling requests and generate a response, and then gave the server, and then from the server sent to the customer. And the CGI is different, Servlet not generate a new process, but with HTTP Server at the same process. It threads through the use of technology, reduce the server costs. Servlet handling of the request process is this: When received from the client's request, calling service methods, the method of Servlet arrival of the first judgement is what type of request (GET / POST / HEAD…), then calls the appropriate treatment (DoGet / doPos t / doHead…) and generate a response.Although such a complex, in fact, simply said to Servlet is a Java class. And the general category of the difference is that this type operating in a Servlet container, which can provide session management and targeted life-cycle management. So that when you use the Servlet, you can get all the benefits of the Java platform, including the safety of the management, use JDBC access the database and cross-platform capability. Moreover, Servlet using thread, and can develop more efficient Web applications.JSP technology is a key J2EE technology, it at a higher level of abstraction of a Servlet.It allows conventional static and dynamic HTML content generated by combining an HTML page looks like, but as a Servlet to run. There are many commercial application server support JSP technology, such as BEA WebLogic, IBM WebSphere, JRun, and so on. JSP and Servlet use more than simple. If you have a JSP support for Web servers, and a JSP document, you can put it Fangdao any static HTML files can be placed, do not have to compile, do not have to pack, do not have to ClassPath settings, you can visit as ordinary Web It did visit, the server will automatically help you to do other work.JSP document looks like an ordinary static HTML document, but inside contains a number of Java code. It uses. Jsp the suffix, used to tell the server this document in need of special treatment. When we visit a JSP page, the document will first be translated into a JSP engine Java source files, is actually a Servlet, and compiler, and then, like other Servlet, from Servlet engine to handle. Servlet engine of this type loading, handling requests from customers, and the results returned to the customer, as shown below:Figure 1: Calling the process of JSP pagesAfter another visit this page to the customer, as long as the paper there have been no changes, JSP engine has been loaded directly call the Servlet. If you have already been modified, it will be once again the implementation of the above process, translate, compile and load. In fact, this is the so-called "first person to punishment." Because when the first visit to the implementation of a series of the above process, so will spend some time after such a visit would not.Java servlets offer a powerful API that provides access to all the information about the request, the session, and the application. combining JSP with servlets lets you clearly separate the application logic from the presentation of the application; in other words, it lets you use the most appropriate component type for the roles of Model, View and Controller.Servlets, Filters, and ListenersA servlet is a Java class that extends a server with functionality for processing a request and producing a response. It's implemented using the classes and interfaces defined by the Servlet API. The API consists of two packages: the javax.servlet package contains classes and interfaces that are protocol-independent, while the javax.servlet.http package provides HTTP-specific extensions and utility classes.What makes a servlet a servlet is that the class implements an interface named javax.servlet.Servlet, either directly or by extending one of the support classes. This interface defines the methods used by the web container to manage and interact with theservlet. A servlet for processing HTTP requests typically extends the javax.servlet.http.HttpServlet class. This class implements the Servlet interface and provides additional methods suitable for HTTP processing.Servlet LifecycleThe web container manages all aspects of the servlet's lifecycle. It creates an instance of the servlet class when needed, passes requests to the instance for processing, and eventually removes the instance. For an HttpServlet, the container calls the following methods at the appropriate times in the servlet lifecycle.Besides the doGet( ) and doPost( ) methods, there are methods corresponding to the other HTTP methods: doDelete( ), doHead( ), doOptions( ), doPut( ), and doTrace( ). Typically you don't implement these methods; the HttpServlet class already takes care of HEAD, OPTIONS, and TRACE requests in a way that's suitable for most servlets, and the DELETE and PUT HTTP methods are rarely used in a web application.It's important to realize that the container creates only one instance of each servlet. This means that the servlet must be thread safe -- able to handle multiple requests at the same time, each executing as a separate thread through the servlet code. Without getting lost in details, you satisfy this requirement with regards to instance variables if you modify the referenced objects only in the init( ) and destroy( ) methods, and just read them in the request processing methods.Compiling and Installing a ServletTo compile a servlet, you must first ensure that you have the JAR file containing all Servlet API classes in the CLASSPATH environment variable. The JAR file is distributed with all web containers. Tomcat includes it in a file called servlet.jar, located in the common/lib directory. On a Windows platform, you include the JAR file in the CLASSPATH.. Reading a RequestOne of the arguments passed to the doGet( ) and doPost( ) methods is an object that implements the HttpServletRequest interface. This interface defines methods that provide access to a wealth of information about the request.Generating a ResponseBesides the request object, the container passes an object that implements the HttpServletResponse interface as an argument to the doGet( ) and doPost( ) methods. This interface defines methods for getting a writer or stream for the response body. It also defines methods for setting the response status code and headers.Using Filters and ListenersThe servlet specification defines two component types beside servlets: filters and listeners. These two types were introduced in the Servlet 2.3 specification, so if you're using a container that doesn't yet support this version of the specification, I'm afraid you'reout of luck.FiltersA filter is a component that can intercept a request targeted for a servlet, JSP page, or static page, as well as the response before it's sent to the client. This makes it easy to centralize tasks that apply to all requests, such as access control, logging, and charging for the content or the services offered by the application. A filter has full access to the body and headers of the request and response, so it can also perform various transformations. One example is compressing the response body if the Accept-Language request header indicates that the client can handle a compressed response.A filter can be applied to either a specific servlet or to all requests matching a URL pattern, such as URLs starting with the same path elements or having the same extension. ListenersListeners allow your application to react to certain events. Prior to Servlet 2.3, you could handle only session attribute binding events (triggered when an object was added or removed from a session). You could do this by letting the object saved as a sessionattribute(using the HttpSession.setAttribute() method)implement the HttpSessionBindingListener interface. With the new interfaces introduced in the 2.3 version of the specification, you can create listeners for servlet context and session lifecycle events as well as session activation and passivation events (used by a container that temporarily saves session state to disk or migrates a session to another server). A newsession attribute event listener also makes it possible to deal with attribute binding events for all sessions in one place, instead of placing individual listener objects in each session.The new types of listeners follow the standard Java event model. In other words, a listener is a class that implements one or more of the listener interfaces. The interfaces define methods that correspond to events. The listener class is registered with the container when the application starts, and the container then calls the event methods at the appropriate times.Initializing Shared Resources Using a ListenerBeans like this typically need to be initialized before they can be used. For instance, they may need a reference to a database or some other external data source and may create an initial information cache in memory to provide fast access even to the first request for data. You can include code for initialization of the shared resources in the servlet and JSP pages that need them, but a more modular approach is to place all this code in one place and let the other parts of the application work on the assumption that the resources are already initialized and available. An application lifecycle listener is a perfect tool for this type of resource initialization. This type of listener implements the javax.servlet.ServletContextListener interface, with methods called by the container when the application starts and when it shuts down.Picking the Right Component Type for Each TaskThe Project Billboard application introduced is a fairly complex application. Half thepages are pure controller and business logic processing, it accesses a database to authenticate users, and most pages require access control. In real life, it would likely contain even more pages, for instance, pages for access to a shared document archive, time schedules, and a set of pages for administration. As the application evolves, it may become hard to maintain as a pure JSP application. It's easy to forget to include the access control code in new pages.This is clearly an application that can benefit from using a combination of JSP pages and the component types defined by the servlet specification for the MVC roles. Let's look at the main requirements and see how we can map them to appropriate component types:●Database access should be abstracted, to avoid knowledge of a specific dataschema or database engine in more than one part of the application: beans in therole of Model can be used to accomplish this.●The database access beans must be made available to all other parts of theapplication when it starts: an application lifecycle event listener is the perfectcomponent type for this task.●Only authenticated users must be allowed to use the application: a filter canperform access control to satisfy this requirement.●Request processing is best done with Java code: a servlet, acting as the Controller,fits the bill.●It must be easy to change the presentation: this is where JSP shines, acting as theView.Adding servlets, listeners, and filters to the mix minimizes the need for complex logic in the JSP pages. Placing all this code in Java classes instead makes it possible to use a regular Java compiler and debugger to fix potential problems.Centralized Request Processing Using a ServletWith a servlet as the common entry point for all application requests, you gain control over the page flow of the application. The servlet can decide which type of response to generate depending on the outcome of the requested action, such as returning a common error page for all requests that fail, or different responses depending on the type of client making the request. With the help from some utility classes, it can also provide services such as input validation, I18N preparations, and in general, encourage a more streamlined approach to request handling.When you use a servlet as a Controller, you must deal with the following basic requirements:●All requests for processing must be passed to the single Controller servlet.●The servlet must be able to distinguish requests for different types of processing.Here are other features you will want support for, even though they may not be requirements for all applications:● A strategy for extending the application to support new types of processingA mechanism for changing the page flow of the application without modifyingcode.Mapping Application Requests to the ServletThe first requirement for using a Controller servlet is that all requests must pass through it. This can be satisfied in many ways. If you have played around a bit with servlets previously, you're probably used to invoking a servlet with a URI that starts with /myApp/servlet. This is a convention introduced by Suns Java Web Server (JWS), the first product to support servlets before the API was standardized. Most servlet containers support this convention today, even though it's not formally defined in the servlet specification.将Servlet和JSP组合使用Servlet和JSP技术是用Java开发服务器端应用的主要技术,是开发商务应用表示端的标准。
网页设计专业毕业设计外文翻译
Produce the design of the tool and realize automaticallyon the basis of JSP webpageIt is an important respect that Internet uses that Web develops technology, and JSP is the most advanced technology that Web is developed , it is present Web developer's first-selected technology. But because JSP has relatively high expectations for Web developer, a lot of general Web developers can not use this advanced technology . The discussion produces the design of the tool and realizes automatically on the basis of JSP webpage of the template and label storehouse, put forward concrete design philosophy and implementation method .With the popularization of WWW (World Wide Web ), the technology of the dynamic webpage is developed rapidly too. From original CGI (Common Gateway In-terface ) to ASP (Active Server Page ), have met the webpage developer to the demand for developing technology of the dynamic webpage to a certain extent. But no matter CGI or ASP have certain limitation, for instance, consuming to resources of the server of CGI, ASP can only be used etc. with Microsoft IIS, all these have limited scope of application of the technology, have hindered their popularization greatly. The vast page developers all look forward to a kind of unified page and develop technology earnestly, characteristic that this technology there should be:①Have nothing to do with the operating platform, can run on any Web or the application program server ;②Show the logic and page of application program that separates ; ③Offer codes to put in an position, simplify and develop the course based on interactive application program of Web.JSP (Java Server Page ) technology is designed and used for responding to the request that like this. JSP is developed technology by the new webpage that Sun MicroSystem Company put out in June of 1999, it is that Web based on Java Serv-let and the whole Java system develops technology, and Servlet2. Expansion of 1API. Utilize this technology, can set up advancedly , safely and stepping dynamic websites of the platform .Java is the future mainstream to develop technology , have a lot of advantages . JSP is Java important application technology on Internet/Intranet Web , get extensive support and admit, it can conbine with various kinds of Java technology together intactly , thus realize very complicated application.As a kind of technology of development based on text , taking showing as centre, JSP has offered all advantages of Java Servlet. Logic function in order to make sure and showing the function was separated , JSP can already work with JavaBeans , Enterprise JavaBeans (EJB ) and Servlet . The developer of JSP can finish the work that majority and website's logic are correlated with through using JavaBeans , EJB and Servlet , and only assign the work shown to JSP page to finish. Content and show advantage that logic separate lie in , upgrade person , page of appearanceneedn't understand Java code , the personnel upgrading Javas needn't be experts who design webpage either. This can define Web template in JSP page with Javas , in order to set up websites made up of a page with similar appearance. Java completion data offer, have Java code among template, this mean template these can write by one HTML person is it maintain to come.JSP develops technology as the webpage of the mainstream at present, has the following characteristics:(1) Separate the formulation and showing of the content : Using JSP technology, the page developer of Web can use HTML or XML identification to design and format the final page . Use JSP identification or bound foot turn into dynamic content of page actually (whether content according to is it come change to ask). Produce logic of content of the identification and JavaBeans package , truss up of the little script encapsulation, all scripts run in the end of the server. If key logic among identification and JavaBeans, then other people, such as Web administrative staff and page designer encapsulation, can edit and use JSP page , and does not influence the formulation of the content .(2) Emphasize the reusable package : Most JSP pages depend on the reusable one, the package stepping the platform finish more complicated treatment with required application program. Benefitting from the independence of operating platform of Java, the developer can be very convenient to share and exchange and carry out the ordinary package that operated, or make these packages used by more users. The method based on package has accelerated the total development course, the efficiency of improving the project and developing wholly greatly.Though JSP is powerful, it requires the webpage developer should be quite familiar with Java. There are still relatively few Java programmers now, for general webpage developer, the grammar of JSP is more difficult to grasp . So, need a kind of webpage developing instrument and offer commonly used JSP application to general webpage developer, is it understand general page develop developer of technology (HTML ) can use strong function of JSP too only to let.Systematic design object and main technology of use:(1)Design objectSystem this design object for understand but HTML understand general webpage developer of JSP offer a webpage developing instrument at all only, enable them to follow the systematic file, use the daily function of JSP through the label, produce one finally and only include static HTML and dynamic JSP webpage of JSP label.(2)Main technologyThis system is in the design, consider using the technology of the template and JSP label to realize mainly.1、Technology of the templateThe technology of the template is widely applied to various kinds of development and application system. It produces some commonly used frame structure in advance , uses the family to choose the template from the template storehouse conveniently according to the needs of one's own one, is it is it put up to go again by oneself to need , save construction period in user , facilitate use of user. In this system , classify the page according to the function type , sum up the commonly used page type, produce the template storehouse.2、Storehouse technology of the labelIn JSP, movements can create and visit the language target of the procedure and influence the element exported and flowed. JSP has defined six standard movements. Except six standard movement these, user can define own movement finish the specific function. These movements are known as the customer movement, they are the reusable procedure module . Through movement these, programmer can some encapsulation stand up too display function of page in JSP page, make the whole page more succinct and easier to maintain. In a JSP page, movements were transfered through the customer label in these customers. And the label storehouse (Tag Library ) is the set of the customer label.JSP label storehouse is that one kind produces the method based on script of XML through JavaBeans. It is one of the greatest characteristics of JSP. Through the label storehouse , can expand JSP application unrestrictedly , finish any complicated application demand.JSP label storehouse has the following characteristic:①Easy to use: The labels in JSP and general HTML marks are totally the same in appearance, it is as convenient as ordinary HTML mark to use.②The easy code is paid most attention to: Every label in the label storehouse can finish certain function . Define ready to eat one label storehouse , is it pack one Jar file the label storehouse to need only, then only need use this label storehouse in other systems afterwards, needn't develop codes again , has raised the system and developed efficiency greatly, have reduced the development cost.③The easy code is safeguarded: All application logic is encapsulated in label processor and JavaBeans, all labels concentrate on a label storehouse. If need to upgrade codes or need to revise the function on a webpage, only need to revise the corresponding label. Maintain way in unison through this kind , it is unnecessary in each webpage is it is it fix to act as to get onning, have reduce the work load safeguarded greatly, has economized the cost of safeguarding.④The easy system is expanded : If need to add the new function to the system , only need to define a new label to finish this function, do not need to do any change to other respects of thesystem. Can inherit JSP normal characteristics of various fields in the label storehouse. Can expand and increase the function of JSP unrestrictedly like this, and does not need to wait for the appearance of the next edition JSP .Systematic composition and realizing:(1)The system making upThis system is made up of four parts mainly:1、The database joins some: This system supports several daily databases , including Oracle, Sybase, MSSQLServer, MySQL and DB2, use JDBC and database to link to each other according to database type and database name , user name , password that users offer that users choose.2、The basic form of system produces some: After joining with the database , produce the basic form TC-Tables and TC-Columns of two systems according to the user name linking to each other with the database , TC-Tables form includes English name , Chinese name and some attribute of form belonging to this user in this database , for instance can revise , can inquire about ; The Chinese and English name of the row and some other attribute that TC-Columns form includes belonging to all forms of this user's in this database . For instance can show , can inquire about . Basic information of the database that these basic forms of two systems provide to user's institute for use in the course of development of the whole system.3、The template is chosen to produce some with the webpage: This part is a key part of a system. It includes two pieces of sub module .①The template is chosen some: The system offers the template to user and chooses the interface, let users choose the templates used from the template storehouse according to the need.②The template is dealt with some: According to template that user choose, system transfer designated template deal with module is it punish to go on to these template. When dealing with the label that the procedure meets in the template, offer the mutual interface to user, let user input parameter for designated label , prove system validity of label that user input. Finished the formulation of JSP page systematically finally.Webpage preview is with revising some: After the webpage was produced out, the system has offered a webpage preview window and code to user and looked over that revises the window. Through this preview window, users can look at the result of JSP page produced out in advance . If user static result of respect in page very satisfied, user can through code look over revise window revise HTML code of code. If users have further demands for the static result of the page, the system has also offered a piece of interface which transfers DreamWeaver editing machine to user, users can use it to carry on further modification and perfection to the static result of JSP page that is produced out .(2)Systematic realization1、Realization of the template storehouse and label storehouseThe planning and design of the label storehouse are essential in the whole system design, efficiency that the degree and system that are put in an position have operated that its relation has reached codes. Its planning should follow the following principle .(1) Should try one's best little including static HTML among label. To general user, the label is transparent. Users can not look over and revise labels . If include too many static HT-ML sentence in the label , will influence the modification and perfection of user's static result to the page, limit the use of the label.(2) Try one's best to raise the paying most attention to degree of the code. Is it is it is it is it is it is it get to JSP public JSP out to withdraw to use to try one's best to classify to go on to use, form labels. Do not use and realize this application repeatedly in each label . While revising and perfecting to using like this , only need to revise this label, maintenance of the easy code.(3) Facilitate users' use. While designing the label storehouse , should fully consider users' operating position , it can very easy and understanding and using labels conveniently to use the family.①Definition of the label storehouse: Define a label storehouse, must define a label storehouse and describe the file (TLD ) at first . This is a file of script based on XML, have defined the edition of XML in this file , codes used, the edition , name and definition and parameter of all labels included in this storehouse of the label storehouse of the edition of the label storehouse , JSP used describe, including the name of the label, corresponding Javas of label, description information of the label ,etc..②Realization of the label: One label first special Java type, this each must inherit TagSupports , this each is in javax. servlet. jsp. Define in tagext bag . In the labels, the parameter which includes this label initializes the subject treatment method (Handler ) of method (Set/Get ) , label and method available for making the first class label to adjust,etc..③Realization of the template : A template is that one contains JSP file that labels quoted . In order to quote the labels defined in the template , must introduce the label storehouse at first .<%@taglib uri=“tag.tld”prefix=“ctag”%>Among them uri appoints the label storehouse to describe the route of the file ; Prefixes used when prefix appoints to quote labels.While quoting the designated label in the template , use the designated prefix while introducing the label storehouse, appoint the name of the label; It is the parameter assignment of the label.2、Systematic development environmentWhat this systematic subject procedure making is used is JBuilder 6 of Borland Company. 0, it is Front-Page2000 of Microsoft Company that the template is developed and used, what the label storehouse is developed and used is UltraEdit editing machine, what JDK is adopted is JDK1.4. The system testing environment is JRun3. 0.Java future mainstream to develop language, and Java using JSP will become major technology that Web will be developed in the future too mainly at Web. This system has adopted the label storehouse , one of the biggest characteristics of JSP, enable the general Web developer to use JSP strong dynamic page function conveniently too, develop JSP dynamic Web page of the modern techniques. Because this system adopts Java to develop, can run under the operating system of any support graphic interface , have realized complete having nothing to do with the platform. This system is easy to expand and perfect. Can consider offering the interface to user afterwards , will use the family to expand the template storehouse and label storehouse by oneself, strengthen the systematic function further.List of references:[1] Cay S. Horstmann,Gary Cornell. Java 2 key technology (CoreJava 2 ) [M ]. Beijing: Publishing house of the mechanical industry.[2] Bruce Eckel. Java programming thought (Thinking in Java ) [M ]. Beijing: Publishing house of the mechanical industry.[3] Joseph L. Weber. Java 2 programming is explained in detail (Using Java 2) [M ]. Beijing: Electronic Industry Press.[4] Borland Company. Building Applications with JBuilder.基于JSP网页自动生成工具的设计与实现Web开发技术是Internet应用的一个重要方面,而JSP又是Web开发的最先进的技术,是当前Web开发人员的首选技术。
PHP毕业设计毕业论文外文文献翻译及原文
毕业设计(论文)外文文献翻译文献、资料中文题目:PHP文献、资料英文题目:文献、资料来源:文献、资料发表(出版)日期:院(部):专业:信息工程(电子信息工程方向)班级:姓名:学号:指导教师:翻译日期: 2017.02.14本科毕业设计(论文)外文参考文献译文及原文目录外文参考文献译文1为什么选择PHP (2)2如果你是编程新手 (4)3写一个基本的PHP程序 (4)4编程语法 (8)5嵌入式语言如何工作 (9)6服务端和客户端脚本 (11)7运行你的程序 (13)外文参考文献原文1Why PHP? (14)2If You Are New to Programming (16)3Writing a Basic PHP Program (18)4Programming Syntax (21)5How Embedded Programming Works (24)6Server-side Versus Client-side Scripting (25)7 Running Your New Program (27)1 为什么选择PHP对于Web编程来说,PHP是一个很好的选择。
它较其它语言(包括其它面向Web 的语言)有许多优点。
为了得到一个清晰的理解(和常见的面向Web的语言相比),让我们将它们比较一下。
ASP是微软的网络开发环境(它本身不是一门开发语言,因为它允许程序员在ASP 中选择其它语言进行开发,如VBScript或JScript。
)ASP虽然简单,但它太过于简单了,以至于不能使用更复杂的逻辑和算法。
除了ASP的过分简单,很多公司发现很难在微软的ASP许可证上节约成本。
即使不考虑硬件成本,微软的Web服务器就要数千美元,而基于UNIX操作系统的、可运行PHP的Web服务器则是免费的。
另一种Web使用的知名语言是Sun Microsystems公司的Java。
Java是平台独立的语言(在一个系统上用Java开发的程序可以不经过任何修改,就可以运行在其它系统上)。
网站建设外文文献翻译
O n s i t e c o n s t r u c t i o n t e c h n o l o g y1 IntroductionThe development of network technology for today's global information exchange and sharing funding source in the establishment of contacts and provide more channels and possible. Homes will be known world affairs, according few keyboard or a few mouse clicks can be distant friends thousands of miles away exchanges, and online communications, Internet browsing, on-line interactive, e-commerce has become a modern part of people's lives. Internet era, has created the new people's work and lifestyle, the Internet, openness and sharing of information model, breaking the traditional mode of information dissemination many barriers for people with new opportunities. With computers and the advent of the information age, the pace of the advance of human society in gradually accelerated. In recent years the development of web design, fast people occupied.With the development of web design, a colorful online website together one scenic beauty. To design aesthetic and practical web site should be thoroughly master the building techniques. In building site, we analyzed the websites of objectives, contents, functions, structure, the application of more web design technology. 2 the definition of websit 2.1 How definition of websites Web site identified the tasks and objectives, the building site is the most important issue. Why people will come to your website? You have a unique service? The first people to your website is to what? They will come back? All these issues must be taken into account when the site definition of the problem. Definition site to, first of all, the entire site must have a clear understanding of what the design should understand in the end, the main purpose of the mission, how to carry out the task of organization and planning. Second, to maintain the high-quality Web site. Many websites in the face of strong competition from high-quality product is the greatest long-term competitive advantage. An excellent Web site should have the following:(1) users visit Web site is faster.(2) attention to the feedback and updates. To update the content of the website and timely feedback the user's requirements;(3) Home design to be reasonable. Home to the first impression left by visitors is important, the design must be attractive in order to have a good visual effect.2.2 The contents of the website and functionThe content of the web site is to be a new, fast, all three sides. The content of the website, including the type of static, dynamic, functional and things to deal with. Website content is determined in accordance with the nature ofthe site, in the design of the site, commercial websites, popular science site, company websites, teaching and exchange websites, the content and style are different. We have established websites with the nature of these types of sites are not the same. 2.3 The structure website(1) site structure;(2) definition of navigation; (3) Visual Design;(4) framework and design pages. 3 Site Design and ImplementationWith increasing demands on design, high style, high-grade design work before gaining popularity. This also to the designers have put forward higher requirements, from this point of view, the plate design is to meet the requirements of the people should be and Health. The rapid development of science and technology, the Internet into millions of households, also produced a new design space, and a new web design an important part of the field of design. Excellent web design, we must have good creative, so that the audience can be difficult to shift attention long time, produce power. Layout is very important, through text, graphics space portfolio, can best express harmony with the United States. If you want to further understand website design, made separately from other web site's homepage, you need to have more like CSS, javascript, CGI, and other web design technology. In building on the site of the CSS, javascript and other web design technology. 3.1 Application Design website CSS(1)What is CSS? CSS is a style sheet (stylesheet) technology. Some of them called CSS (Cascading Stylesheet).(2) the combination of CSS and HTML form. Mode 1: The CSS content, as defined in the writing between the labels. Mode 2: CSS will be preserved as a separate text file, and then from labels to call.(3) CSS the web site of examples. The web site pages, and increase the following definition so that the pages show with special effects. 3.2 Application Design website javascriptjavascript and the emergence of making information between users is not only a display and browse the relationship, but to achieve a real-time, dynamic, cross-expression. Thus based on the CGI static HTML pages will be to provide dynamic real-time information, and customer response to the operation of the Web pages replaced. javascript scripting is satisfy this demand arising from the language. It's loved by extensive user. Many scripting language it is in a relatively good. WWW and effectively achieve the combination of the computer network computing and network blueprint.4 Construction on the site ExperienceWith the popularity of the Internet, more and more government departments, companies and individuals aware of the need to have their own independent Website. Below on the design and production sites on some of their own experience. After conducting systematic analysis End, we should carry out system design. Web page design similar to the development of software design, top-down, bottom-up and continuous updating, and other design methods. The main task is to design the content of the sites, including the website information organization structure, appearance, content block, navigation and links, directory structure design. System design is the site ready before the concrete realization of the website to further the realization of more specific requirements, the overall effect on the website, local details have a clearer idea. This entire process is the key site planning.Next is how to achieve their own Web site design issues. The realization of the site, I think the need to be considered in two parts: the realization website; Web servers can be achieved. In the process of achieving website, technology selection is very important. Former major use HTML language, the stronger the interactive website, the proposed use of ASP, JSP, PHP and other programming to help achieve,the more complex Web site may also have its own database. The latter is based on all kinds of different operating systems used Web server software installation and debugging. This stage is the whole process of the most important and most time-consuming part.When we completed the work, the need for website released. At this stage of the production on the website drawing to a close, the main task is to do a good job in the website release to the network, the web site for final modifications, testing, homepage can guarantee normal operation of the network.Published in the website after website to deal with various aspects of the tests, including the possibility of any different web browsers, different visitors have shown normal, ASP, JSP, PHP normal procedure can work, and so on. This stage is the website of trial operation period, the website at this time should be to make up for various shortcomings, the website will be more perfected.After a period of operation, the site entered the normal operation period, the main task is to update outdated information website, the visitor's message timely feedback to further improve the website, the introduction of new technologies constantly update website, visit web pages more quickly, more aesthetic appearance, Information Resources richer.Above is the establishment of the station to roughly follow the seven steps, seven steps are complementary, but can be the basis of ease of website and complexity of a weakening or strengthening appropriate link. In short, building a successful web site is not an easy task, it needs all-round consideration, the Composite various factors.5 concluding remarksWith the rapid development of Internet technology, in all walks of life have joined the industry to the Internet. Whether from the management side, or from a commercial point of view, the Internet can bring immense vitality. Internet to become a talented designer Shi new world. People will continue to explore, will be the site of the building in the application of new technologies in the web site.网站建设技术1 介绍网络技术的发展,为今天全球性的信息交流与资源共享和交往提供了更多的途径和可能。
外文文献JSP中英文翻译
THE TECHNIQUE DEVELOPMENT HISTORY OF JSPBy:Kathy Sierra and Bert BatesSource:Servlet&JSPThe Java Server Pages( JSP) is a kind of according to web of the script plait distance technique, similar carries the script language of Java in the server of the Netscape company of server- side JavaScript( SSJS) and the Active Server Pages(ASP) of the Microsoft. JSP compares the SSJS and ASP to have better can expand sex, and it is no more exclusive than any factory or some one particular server of Web. Though the norm of JSP is to be draw up by the Sun company of, any factory can carry out the JSP on own system.The After Sun release the JSP( the Java Server Pages) formally, the this kind of new Web application development technique very quickly caused the people's concern. JSP provided a special development environment for the Web application that establishes the high dynamic state. According to the Sun parlance, the JSP can adapt to include the Apache WebServer, IIS4.0 on the market at inside of 85% server product.This chapter will introduce the related knowledge of JSP and Databases, and JavaBean related contents, is all certainly rougher introduction among them basic contents, say perhaps to is a Guide only, if the reader needs the more detailed information, pleasing the book of consult the homologous JSP.1.1 GENERALIZEThe JSP(Java Server Pages) is from the company of Sun Microsystems initiate, the many companies the participate to the build up the together of the a kind the of dynamic the state web the page technique standard, the it have the it in the construction the of the dynamic state the web page the strong but the do not the especially of the function. JSP and the technique of ASP of the Microsoft is very alike. Both all provide the ability that mixes with a certain procedure code and is explain by the language engine to carry out the procedure code in the code of HTML. Underneath we are simple of carry on the introduction to it.JSP pages are translated into servlets. So, fundamentally, any task JSP pages can perform could also be accomplished by servlets. However, this underlying equivalence does not mean that servlets and JSP pages are equally appropriate in all scenarios. The issue is not the power of the technology, it is the convenience, productivity, and maintainability of one or the other. After all, anything you can do on a particular computer platform in the Java programming language you could also do in assembly language. But it still matters which you choose.JSP provides the following benefits over servlets alone:• It is easier to write and maintain the HTML. Your static code is ordinary HTML: no extra backslashes, no double quotes, and no lurking Java syntax.• You can use standard Web-site development tools. Even HTML tools that know nothing about JSP can be used because they simply ignore the JSP tags.• You can divide up your development team. The Java programmers can work on the dynamic code. The Web developers can concentrate on the presentation layer. On large projects, this division is very important. Depending on the size of your team and the complexity of your project, you can enforce a weaker or stronger separation between the static HTML and the dynamic content.Now, this discussion is not to say that you should stop using servlets and use only JSP instead. By no means. Almost all projects will use both. For some requests in your project, you will use servlets. For others, you will use JSP. For still others, you will combine them with the MVC architecture . You want the appropriate tool for the job, and servlets, by themselves, do not complete your toolkit.1.2 SOURCE OF JSPThe technique of JSP of the company of Sun, making the page of Web develop the personnel can use the HTML perhaps marking of XML to design to turn the end page with format. Use the perhaps small script future life of marking of JSP becomes the dynamic state on the page contents.( the contents changes according to the claim of)The Java Servlet is a technical foundation of JSP, and the large Web applies the development of the procedure to need the Java Servlet to match with with the JSP and then can complete, this name of Servlet comes from the Applet, the local translation method of now is a lot of, this book in order not to misconstruction, decide the direct adoption Servlet but don't do any translation, if reader would like to, can call it as" small service procedure". The Servlet is similar to traditional CGI, ISAPI, NSAPI etc. Web procedure development the function of the tool in fact, at use the Java Servlet hereafter, the customer need not use again the lowly method of CGI of efficiency, also need not use only the ability come to born page of Web of dynamic state in the method of API that a certain fixed Web server terrace circulate. Many servers of Web all support the Servlet, even not support the Servlet server of Web directly and can also pass the additional applied server and the mold pieces to support the Servlet. Receive benefit in the characteristic of the Java cross-platform, the Servlet is also a terrace irrelevant, actually, as long as match the norm of Java Servlet, the Servlet is complete to have nothing to do with terrace and is to have nothing to do with server of Web. Because the Java Servlet is internal to provide the service by the line distance, need not start a progressto the each claimses, and make use of the multi-threading mechanism can at the same time for several claim service, therefore the efficiency of Java Servlet is very high.But the Java Servlet also is not to has no weakness, similar to traditional CGI, ISAPI, the NSAPI method, the Java Servlet is to make use of to output the HTML language sentence to carry out the dynamic state web page of, if develop the whole website with the Java Servlet, the integration process of the dynamic state part and the static state page is an evil-foreboding dream simply. For solving this kind of weakness of the Java Servlet, the SUN released the JSP.A number of years ago, Marty was invited to attend a small 20-person industry roundtable discussion on software technology. Sitting in the seat next to Marty was James Gosling, inventor of the Java programming language. Sitting several seats away was a high-level manager from a very large software company in Redmond, Washington. During the discussion, the moderator brought up the subject of Jini, which at that time was a new Java technology. The moderator asked the manager what he thought of it, and the manager responded that it was too early to tell, but that it seemed to be an excellent idea. He went on to say that they would keep an eye on it, and if it seemed to be catching on, they would follow his company's usual "embrace and extend" strategy. At this point, Gosling lightheartedly interjected "You mean disgrace and distend."Now, the grievance that Gosling was airing was that he felt that this company would take technology from other companies and suborn it for their own purposes. But guess what? The shoe is on the other foot here. The Java community did not invent the idea of designing pages as a mixture of static HTML and dynamic code marked with special tags. For example, Cold Fusion did it years earlier. Even ASP (a product from the very software company of the aforementioned manager) popularized this approach before JSP came along and decided to jump on the bandwagon. In fact, JSP not only adopted the general idea, it even used many of the same special tags as ASP did.The JSP is an establishment at the model of Java servlets on of the expression layer technique, it makes the plait write the HTML to become more simple.Be like the SSJS, it also allows you carry the static state HTML contents and servers the script mix to put together the born dynamic state exportation. JSP the script language that the Java is the tacit approval, however, be like the ASP and can use other languages( such as JavaScript and VBScript), the norm of JSP also allows to use other languages.1.3JSP CHARACTERISTICSIs a service according to the script language in some one language of the statures system this kind of discuss, the JSP should be see make is a kind of script language.However, be a kind of script language, the JSP seemed to be too strong again, almost can use all Javas in the JSP.Be a kind of according to text originally of, take manifestation as the central development technique, the JSP provided all advantages of the Java Servlet, and, when combine with a JavaBeans together, providing a kind of make contents and manifestation that simple way that logic separate. Separate the contents and advantage of logical manifestations is, the personnel who renews the page external appearance need not know the code of Java, and renew the JavaBeans personnel also need not be design the web page of expert in hand, can use to take the page of JavaBeans JSP to define the template of Web, to build up a from have the alike external appearance of the website that page constitute. JavaBeans completes the data to provide, having no code of Java in the template thus, this means that these templates can be written the personnel by a HTML plait to support. Certainly, can also make use of the Java Servlet to control the logic of the website, adjust through the Java Servlet to use the way of the document of JSP to separate website of logic and contents.Generally speaking, in actual engine of JSP, the page of JSP is the edit and translate type while carry out, not explain the type of. Explain the dynamic state web page development tool of the type, such as ASP, PHP3 etc., because speed etc. reason, have already can't satisfy current the large electronic commerce needs appliedly, traditional development techniques are all at to edit and translate the executive way change, such as the ASP → ASP+;PHP3 → PHP4.In the JSP norm book, did not request the procedure in the JSP code part( be called the Scriptlet) and must write with the Java definitely. Actually, have some engines of JSP are adoptive other script languages such as the EMAC- Script, etc., but actually this a few script languages also are to set up on the Java, edit and translate for the Servlet to carry out of. Write according to the norm of JSP, have no Scriptlet of relation with Java also is can of, however, mainly lie in the ability and JavaBeans, the Enterprise JavaBeanses because of the JSP strong function to work together, so even is the Scriptlet part not to use the Java, edit and translate of performance code also should is related with Java.1.4JSP MECHANISMTo comprehend the JSP how unite the technical advantage that above various speak of, come to carry out various result easily, the customer must understand the differentiation of" the module develops for the web page of the center" and" the page develops for the web page of the center" first.The SSJS and ASP are all in several year ago to release, the network of that time is still very young, no one knows to still have in addition to making all business, datas and theexpression logic enter the original web page entirely heap what better solve the method. This kind of model that take page as the center studies and gets the very fast development easily. However, along with change of time, the people know that this kind of method is unwell in set up large, the Web that can upgrade applies the procedure. The expression logic write in the script environment was lock in the page, only passing to shear to slice and glue to stick then can drive heavy use. Express the logic to usually mix together with business and the data logics, when this makes be the procedure member to try to change an external appearance that applies the procedure but do not want to break with its llied business logic, apply the procedure of maintenance be like to walk the similar difficulty on the eggshell. In fact in the business enterprise, heavy use the application of the module already through very mature, no one would like to rewrite those logics for their applied procedure.HTML and sketch the designer handed over to the implement work of their design the Web plait the one who write, make they have to double work- Usually is the handicraft plait to write, because have no fit tool and can carry the script and the HTML contents knot to the server to put together. Chien but speech, apply the complexity of the procedure along with the Web to promote continuously, the development method that take page as the center limits sex to become to get up obviously.At the same time, the people always at look for the better method of build up the Web application procedure, the module spreads in customer's machine/ server the realm. JavaBeans and ActiveX were published the company to expand to apply the procedure developer for Java and Windows to use to come to develop the complicated procedure quickly by" the fast application procedure development"( RAD) tool. These techniques make the expert in the some realm be able to write the module for the perpendicular application plait in the skill area, but the developer can go fetch the usage directly but need not control the expertise of this realm.Be a kind of take module as the central development terrace, the JSP appeared. It with the JavaBeans and Enterprise JavaBeans( EJB) module includes the model of the business and the data logic for foundation, provide a great deal of label and a script terraces to use to come to show in the HTML page from the contents of JavaBeans creation or send a present in return. Because of the property that regards the module as the center of the JSP, it can drive Java and not the developer of Java uses equally. Not the developer of Java can pass the JSP label( Tags) to use the JavaBeans that the deluxe developer of Java establish. The developer of Java not only can establish and use the JavaBeans, but also can use the language of Java to come to control more accurately in the JSP page according to the expression logic of the first floor JavaBeans.See now how JSP is handle claim of HTTP. In basic claim model, a claim directly was send to JSP page in. The code of JSP controls to carry on hour of the logic processing and module of JavaBeanses' hand over with each other, and the manifestation result in dynamic state bornly, mixing with the HTML page of the static state HTML code. The Beans can be JavaBeans or module of EJBs. Moreover, the more complicated claim model can see make from is request other JSP pages of the page call sign or Java Servlets.The engine of JSP wants to chase the code of Java that the label of JSP, code of Java in the JSP page even all converts into the big piece together with the static state HTML contents actually. These codes piece was organized the Java Servlet that customer can not see to go to by the engine of JSP, then the Servlet edits and translate them automatically byte code of Java.Thus, the visitant that is the website requests a JSP page, under the condition of it is not knowing, an already born, the Servlet actual full general that prepared to edit and translate completes all works, very concealment but again and efficiently. The Servlet is to edit and translate of, so the code of JSP in the web page does not need when the every time requests that page is explain. The engine of JSP need to be edit and translate after Servlet the code end is modify only once, then this Servlet that editted and translate can be carry out. The in view of the fact JSP engine auto is born to edit and translate the Servlet also, need not procedure member begins to edit and translate the code, so the JSP can bring vivid sex that function and fast developments need that you are efficiently.Compared with the traditional CGI, the JSP has the equal advantage. First, on the speed, the traditional procedure of CGI needs to use the standard importation of the system to output the equipments to carry out the dynamic state web page born, but the JSP is direct is mutually the connection with server. And say for the CGI, each interview needs to add to add a progress to handle, the progress build up and destroy by burning constantly and will be a not small burden for calculator of be the server of Web. The next in order, the JSP is specialized to develop but design for the Web of, its purpose is for building up according to the Web applied procedure, included the norm and the tool of a the whole set. Use the technique of JSP can combine a lot of JSP pages to become a Web application procedure very expediently.JSP的技术发展历史作者:Kathy Sierra and Bert Bates来源:Servlet&JSPJava Server Pages(JSP)是一种基于web的脚本编程技术,类似于网景公司的服务器端Java脚本语言——server-side JavaScript(SSJS)和微软的Active Server Pages(ASP)。
网页设计外文翻译
外文资料JavaServer Pages OverviewJavaServer Pages (JSP) technology enables Web developers and designers to rapidly develop and easily maintain, information-rich, dynamic Web pages that leverage existing business systems. As part of the Java technology family, JSP technology enables rapid development of Web-based applications that are platform independent. JSP technology separates the user interface from content generation, enabling designers to change the overall page layout without altering the underlying dynamic content.Benefits for DevelopersIf you are a Web page developer or designer who is familiar with HTML, you can: Use JSP technology without having to learn the Java language: You can use JSP technology without learning how to write Java scriplets. Although scriptlets are no longer required to generate dynamic content, they are still supported to provide backward compatibility.Extend the JSP language: Java tag library developers and designers can extend the JSP language with "simple tag handlers," which utilize a new, much simpler and cleaner, tag extension API. This spurs the growing number of pluggable, reusable tag libraries available, which in turn reduces the amount of code needed to write powerful Web applications.Easily write and maintain pages: The JavaServer Pages Standard Tag Library (JSTL) expression language is now integrated into JSP technology and has been upgraded to support functions. The expression language can now be used instead of scriptlet expressions.JSP Technology and Java ServletsJSP technology uses XML-like tags that encapsulate the logic that generates the content for the page. The application logic can reside in server-based resources (such as JavaBeans component architecture) that the page accesses with these tags. Any and all formatting (HTML or XML) tags are passed directly back to the response page. By separating the page logic from its design and display and supporting a reusable component-based design, JSP technology makes it faster and easier than ever to build Web-based applications.JavaServer Pages technology is an extension of the Java Servlet technology. Servlets are platform-independent, server-side modules that fit seamlessly into a Web server framework and can be used to extend the capabilities of a Web server with minimal overhead, maintenance, and support. Unlike other scripting languages, servlets involve no platform-specific consideration or modifications; they are application components that are downloaded, on demand, to the part of the system that needs them. Together, JSP technology and servlets provide an attractive alternative to other types of dynamic Web scripting/programming by offering: platform independence; enhanced performance; separation of logic from display; ease of administration; extensibility into the enterprise; and, most importantly, ease of use.Today servlets are a popular choice for building interactive Web applications.Third-party servlet containers are available for Apache Web Server, Microsoft IIS, and others. Servlet containers are usually a component of Web and application servers, such as BEA WebLogic Application Server, IBM WebSphere, Sun Java System Web Server, Sun Java System Application Server, and others.Community BackgroundThe JSP specification is the product of industry-wide collaboration with industry leaders in the enterprise software and tools markets, led by Sun Microsystems. Sun has made the JSP specification freely available to the developer community, with the goal that every Web server and application server will support the JSP interface. JSP pages share the "Write Once, Run Anywhere" advantages of Java technology. JSP technology is a key component in the Java 2 Platform, Enterprise Edition, Sun's highly scalable architecture for enterprise applications.JSP Technology in the Java EE 5 PlatformThe focus of Java EE 5 has been ease of development by making use of Java language annotations that were introduced by J2SE 5.0. JSP 2.1 supports this goal by defining annotations for dependency injection on JSP tag handlers and context listeners. Another key concern of the Java EE 5 specification has been the alignment of its webtier technologies, namely JavaServer Pages (JSP), JavaServer Faces (JSF), and JavaServer Pages Standard Tag Library (JSTL).The outcome of this alignment effort has been the Unified Expression Language (EL), which integrates the expression languages defined by JSP 2.0 and JSF 1.1.The main key additions to the Unified EL that came out of tbe alignment work have been:A pluggable API for resolving variable references into Java objects and for resolving the properties applied to these Java objects,Support for deferred expressions, which may be evaluated by a tag handler when needed, unlike their regular expression counterparts, which get evaluated immediately when a page is executed and rendered, andSupport for lvalue expression, which appear on the left hand side of an assignment operation. When used as an lvalue, an EL expression represents a reference to a data structure, for example: a JavaBeans property, that is assigned some user input.The new Unified EL is defined in its own specification document, which is delivered along with the JSP 2.1 specification.Thanks to the Unified EL, JSTL tags, such as the JSTL iteration tags, can now be used with JSF components in an intuitive way.Java Servlet Technology OverviewServlets are the Java platform technology of choice for extending and enhancing Web servers. Servlets provide a component-based, platform-independent method for building Web-based applications, without the performance limitations of CGI programs. And unlike proprietary server extension mechanisms (such as the Netscape Server API or Apache modules), servlets are server- and platform-independent. This leaves you free to select a "best of breed" strategy for your servers, platforms, and tools.Servlets have access to the entire family of Java APIs, including the JDBC API to access enterprise databases. Servlets can also access a library of HTTP-specific calls and receive all the benefits of the mature Java language, including portability, performance, reusability, and crash protection.Today servlets are a popular choice for building interactive Web applications. Third-party servlet containers are available for Apache Web Server, Microsoft IIS, and others. Servlet containers are usually a component of Web and application servers, such as BEA WebLogic Application Server, IBM WebSphere, Sun Java System Web Server, Sun Java System Application Server, and others.You might want to check out the latest information on JavaServer Pages (JSP) technology. JSP technology is an extension of the servlet technology created to support authoring of HTML and XML pages. It makes it easier to combine fixed or static template data with dynamic content. Even if you're comfortable writing servlets, there are several compelling reasons to investigate JSP technology as a complementto your existing work.JavaBeansJavaBeans technology is the component architecture for the Java 2 Platform, Standard Edition (J2SE). Components (JavaBeans) are reusable software programs thatyou can develop and assemble easily to create sophisticated applications. JavaBeans technology is based on the JavaBeans specification.The Bean BuilderThe Bean Builder is a simple component assembler that demonstrates the visual construction of applications using component assembly mechanisms.JavaBeans Activation Framework (JAF)JAF lets you take advantage of standard services to: determine the type of an arbitrary piece of data; encapsulate access to it; discover the operations availableon it; and instantiate the appropriate bean to perform the operation(s).The Java 2 Enterprise Edition (J2EE) is a standard that defines an environment forthe development and deployment of enterprise applications. It reduces the cost and complexity of developing multitier enterprise applications as it provides amultitier distributed application model. In other words, it is inherently distributed and therefore the various parts of an application can run on different devices.Web applications developed using JavaServer Pages (JSP) may require some interaction with J2EE services. For example, a web-based inventory control system may need to access J2EE's directory services to gain access to a database. Or you may want touse Enterprise JavaBeans (EJB) in your application.This article presents a brief overview of J2EE, then it shows how to: Describe J2EE services in a Web Deployment Descriptor (web.xml)Reference J2EE servicesAccess and use J2EE services from JSPsOverview of J2EEThe J2EE is a standard platform for the development and deployment of enterprise applications. The architecture of J2EE, which is component-based, makes developingenterprise applications easy because business logic is organized into reusable components and the underlying service is provided by J2EE in the form of a container for every component type. Think of a container as the interface between the component and the low-level functionality that supports the component. Therefore, before an application client component can be executed, it must be configured as a J2EE service and deployed into its container.J2EE promotes the development of multitier applications in which the web container hosts web components that are dedicated to handling a given application's presentation logic, and responds to requests from the client (such as the web browser). The EJB container, on the other hand, hosts application components that respond to requests from the web tier as shown in Figure 1.Figure 1: Multitier ApplicationsApplications that use this architecture are implicitly scalable. This architecture decouples the accessing of data from end-user interactions, and encourages component-based code reusability. At the web tier, J2EE promotes the use of JSPs for the creation of dynamic content for Web clients.Custom Tags and J2EEJ2EE has a lot to offer to Web application developers and the JSP custom tag developer. As you can see from Table 1 above, it has a rich set of standard APIs for sending email, accessing databases, parsing XML documents, and so on. Your Web applications can benefit greatly from these APIs. For example, you can write a JSP custom tag for sending email that can be used easily by Web content developers who are not familiar with Java. If you are not familiar with JSP custom tags, their benefits, and how to create them, please refer to Developing JSP Custom Tags.外文资料译文Javaserverpages概况Javaserverpages(jsp)技术,使Web开发人员和设计师可以快速开发和易于维护,利用现有的业务系统的动态网页使信息丰富。
网页设计外文翻译
网页设计外文翻译外文原文Source: Web Page Design Using JavaScriptTHE BASICSJA V ASCRIPT uses a subset of the programming language JA V A to provide a high level of interactivity on a web page. JavaScripts are stored within an HTML document and are interpreted by the web browser.JavaScripts may be located within the HTML code at the point in the page where they are to appear on the screen or they may be written using functions. Functions are small subprograms that are stored between the head tags of an HTML document and are called on to be executed when a particular event occurs.Whether the script is stored between the head tags or within the body of the HTML document, it must be enclosed in script tags. Also, a set of HTML comment tags are typically used inside the script tags so that older browsers that do not support JavaScript will ignore the script and continue to process the page without errors.Following is an example of the script and comment tags:<script language="javascript"><!--Include JavaScript Code Here//--></script>Be aware that JavaScript is case sensitive...the difference between a working script and an error message can be one capital letter.ALERT BOXESTo pop up an alert box include the following line of code inside of script tags in the body of your HTML document. Please note that the processing of the page will stop until the viewer responds to the alert box.alert ("Place the text to be displayed in the alert box between these quotes.")Other types of pre-made dialog boxes are available such as the prompt and confirm boxes. In order to take full advantage of the features of these dialog boxes you must write more JavaScript code which can use the values that are returned by the dialog boxes.The following statements will pop up a dialog box that requires a yes or no answer (OK or Cancel). If the answer is OK then the variable named answer has a value of true and if the answer is Cancel then the variable named answer has a value of false. You canthen use an if statement in the JavaScript code to respond appropriately.var answer = confirm ("Are you sure you want to quit?")if (answer==true){window.close()}The following code will pop up a dialog box that asks the user to enter some sort of information. If the user clicks OK the information they entered is stored in the variable. The second set of quotation marks inside of the prompt statement make the contents of the text box blank when the dialog box is displayed.var response = prompt ("What is your name?" ,"")document.write ("<font size=7 color=red face=arial>Hello " + response + "!") Notice that in the last two examples the window and document objects were used. Window refers to the browser window and document refers to the page being displayed. The use of a dot after the name of the object allows actions to be performed on that object or properties of that object to be modified. In this next example, the navigator object is referenced in order to display the browser name and version.alert ("You are using " + navigator.appName + " version " + navigator.appVersion + ".")POP-UP WINDOWSAn additional browser window may be opened using a simple JavaScript. The open method contains three parts as in the following example: the name of the document or url of the web site to be displayed in the new window, the name that may be used to refer to the browser window (requires more code than is shown here), and the properties of the new window. Please note that the properties are all listed in one set of quotation marks and are separated by commas.open ("myfile.html", "mywin", "height=200, width=200, titlebar=false")The following properties may be used to control the appearance of the new window:WRITING FUNCTIONSFunctions are small subprograms that are located within script tags between the head tags of an HTML document. Functions are executed when they are called by name from an event handler within the body of an HTML document.The basic structure of a function is as follows:function NameOfFunction( ){Include JavaScript Code Here}EVENT HANDLERSThe following example demonstrates the use of event handler onclick as well as the use of styles to control the appearance of buttons. Note that instead of using type=submit for the button the code simply says type=button. Copy and paste this entire set of code in to a new document and test it out.<html><head><title>Sample</title><style type="text/css">#bigbutton {background-color : yellow; font-family : arial; color : blue;font-size :18px; height : 50px; border-width : 0.2cm; border-color : red} </style></head><body><form name=myform><input type=button name=mybutton id=bigbutton value="CLICK ME!"onclick="window.location=''"></form></body></html>Changing the code for the button to read onclick="myfunction( )" will result in exactly the same thing as the previous example if the following function is included in a script between the head tags. Typically, you would write a function only if the event required more than one thing to happen.function myfunction( ){window.location = ""}The following are some of the event handlers that exist in javascript:Table1-2 event handlers that exist in javascriptonfocus onblur onselect onchangeonsubmit onclick onmouseover onmouseoutonload onunload onabort onerroronreset onkeypress onkeyup onmousedownonmousemove onmouseup onmove onresize POP-UP MENUSPop-Up Menus can be quickly created by using the select tag as it was used in forms to create a drop down list. Set the value of each of the options in the select tag to the url of the new page to be displayed. Use the onchange event handler to set the location of the window to the selected value in the drop down list. For example, if the form is named myform, the select tag is named mychoices, and the value of each option is a url then the statement window.location = document.myform.mychoices.value will take you to the new page that was selected from the drop down list.By default only one item in a list is displayed by a select statement until the viewer clicks on the down arrow to expose the rest of the list. To display more that one item at atime (and create a text box with a vertical scrollbar) include the size attribute in the select tag. For example, size=5 will display the first five items in the list and add a vertical scroll bar to the box if there are more than 5 items in the list.MOUSEOVERSA mouseover refers to the effect that occurs when the properties of an object are changed if the mouse is positioned over the top of the object and then again if the mouse is removed from the object. The quickest way to generate a mouseover is to use the onmouseover and onmouseout event handlers in a form of in-line style.Visit the style section of the DHTML page of this web site to see an example of mouseovers used with text as an in-line style. Any style property that applies to a particular object can be changed as the result of a mouseover.Performing mouseovers with a graphic is not much different than with text. When the desired event occurs (onmouseover, onmouseout) change the source of the graphic as in the example that follows:<img src="pic1.jpg" onmouseover="src='pic2.jpg'" onmouseout="src='pic1.jpg'"> SCROLLING TEXTSince the marquee tag is only supported by Internet Explorer it is a good idea to avoid it as much as possible and use a JavaScript to generate scrolling text instead. With this JavaScript it is also quite easy to place the scrolling text on the status bar instead of in the document itself by using window.status as the destination for the message. The following function will generate a scrolling message in a text box named mymessagebox which is part of a form named myform. The event handler onload must also be used in the body tag to call the function when the page loads.var message = "This is a test... "var position = 0function mymessage( ){document.myform.mymessagebox.value=message.substring(position, message.length) +message.substring(0, position)position = position + 1if (position > message.length){position = 0}window.setTimeout("mymessage( )", 300)}DATES AND TIMESDates and times are often displayed on web pages to indicate when a page was last updated, when a page was loaded, or to display a countdown to a particular event. Displaying the date and time of the last update is a good practice to get in to for all of your pages because frequent updates are one sign of a quality site. The date/time stamp lets the viewer know how recent the information is and therefore provides one indication of validity. To display the date and time of the last update (the last time the document was saved) use the following one line inside of script tags:document.write ("This page last updated " + stModified)To display the current time and date on a web page you must declare a variable of type Date ( var now = new Date). The variable can then be used to access various parts of the date and time including day of the week, month, day of the month, year, hours (in military time), minutes, and seconds. Assuming that now is the variable declared of type Date the following table describes how to access the parts of the date and time. Each of the function calls may be used in a document.write statement to display the result.One way to convert the numbers for the month and day of week in to words is touse if statements. Using a lot of if statements is not the most efficient way to display the words, but it is the method that requires the least amount of programming knowledge. Examine the following example. Notice the condition that follows the word if is in parentheses and that a double equal sign is used for the comparison. A single equal sign will actually make the condition true no matter what so January would always be displayed.if (now.getMonth( ) == 0)document.write ("January")The following function would display a working clock if your page contained a form called myform which contained a text box named mybox and the function was called using the onload event handler in the body tag. More code would need to be added to assure that the minutes and seconds always used two digits.function myclock( ){var now = new Datedocument.myform.mybox.value=now.getHours( )+":"+now.getMinutes( )+":"+now.getSeconds( )window.setTimeout ("myclock( )",1000)}To display a countdown to a future date, you will need two variables of type new Date. One of them will need to be set to the date that you are targeting with your countdown. The declarations would look as follows if you were going to count down to New Year's Day.var now = new Datevar then = new Date("January 1, 2002")The variable now in the above example actually holds the number of milliseconds that have passed since the computer started counting until now. The variable then in the above example actually holds the number of milliseconds that will have passed between the time the computer started counting and January 1, 2002. By subracting the two amounts and storing the answer in a new variable you will know the number of milliseconds between now and your target date. With a little division, this number can be converted to the number of days between now and your target date. In order to display the result as an integer, you will need to use the Math.ceil function as in the following example which uses the variable numdays to hold the number of days to be displayed. Ceil is short for ceiling which implies that the number will be rounded up tothe nearest whole number.document.write("Only " + Math.ceil(numdays) + " days until New Year's!")INTERACTIVE FORMSForms can be used for a lot more than just submitting information through email. Forms can be made to perform all sorts of actions when buttons are clicked.中文翻译出处:使用JavaScript设计网页基础JavaScript使用编程语言Java的一个子集在网页上提供高层次的交互。
6-外文文献及翻译
The technique development history of JSP The Java Server Pages( JSP) is a kind of according to web of the script plait distance technique, similar carries the script language of Java in the server of the Netscape company of server- side JavaScript( SSJS) and the Active Server Pages( JSP) of the Microsoft.JSP compares the SSJS and JSP to have better can expand sex, and it is no more exclusive than any factoryor some one particular server of Web. Though the norm of JSP is to be draw up by the Sun company of, any factory can carry out the JSP on own system.A.GeneralizeThe JSP(Java Server Pages) is from the company of Sun Microsystems initiate, the many companies the participate to the build up the together of the a kind the of dynamic the state web the page technique standard, JSP in the construction the of the dynamic state the web page the strong but the do not the especially of the function’s and the technique of JSP of the Microsoft is very alike. Both all provide the ability that mixes with a certain procedure code and is explain by the language engine to carry out the procedure codein the code ofHTML.Underneath we are simple of carry on the introduction to JSP.B. Source of JSPThe Java Servlet is a technical foundation of JSP, and the large Web applies the development of the procedure to need the Java Servlet to match with with the JSP and then can complete, this name of Servlet comes from the Applet, the local translation method of now is a lot of, this book in order not to misconstruction, decide the direct adoption Servlet but don't do any translation, if reader would like to, can call it as" small service procedure”. The Servlet is similar to traditional CGI, ISAPI, NSAPI etc. Web procedure development the function of the tool in fact, at use the Java Servlet hereafter, the customer need not use again the lowly method of CGI of efficiency, also need not use only the ability come to born page of Web of dynamic state in the method of API that a certain fixed Web server terrace circulate. Many servers of Web all support the Servlet, even not support the Servlet server of Web directly and can also pass the additional applied server and the mold pieces to support the Servlet.Receive benefit in the characteristic of the Java cross-platform, the Servlet is also a terrace irrelevant, actually, as long as match the norm of Java Servlet, the Servlet is complete to have nothing to do with terrace and is to have nothing to do with server of Web.C. JSP characteristicsBe a kind of according to text originally of, take manifestation as the central development technique, the JSP provided all advantages of the Java Servlet, and, when combine with a JavaBeans together, providing a kind of make contents and manifestation that simple way that logic separate. Separate the contents and advantage of logical manifestations is, the personnel who renews the page external appearance need not know the code of Java, and renew the JavaBeans personnel also need not be design the web page of expert in hand, can use to take the page of JavaBeans JSP to define the template of Web, to build up a from have the alike external appearance of the website that page constitute. JavaBeans completes the data to provide, having no code of Java in the template thus, this means that these templates can be written the personnel by a HTML plait to support. Certainly, can also make use of the Java Servlet to control the logic of the website, adjust through the Java Servlet to use the way of the document of JSP to separate website of logic and contentses.D. JSP mechanismThe SSJS and JSP are all in several years ago to release, the network of that time is still very young, no one knows to still have in addition to making all business, datas and the expression logic enter the original web page entirely heaped what better solve the method. This kind of model that takes page as the center studies and gets the very fast development easily. However, along with change of time, the people know that this kind of method is unwell in set up large, the Web that can upgrade applies the procedure. The expression logic write in the script environment was lock in the page, only passing to shear to slice and glue to stick then can drive heavy use. Express the logic to usually mix together with business and the data logics, when this makes be the procedure member to try to change an external appearance that applies the procedure but do not want to break with its lied business logic, apply the procedure of maintenance be like to walk the similar difficulty on the eggshell. In fact in the business enterprise, heavy use the application of the module already through very mature, no one would like to rewrite those logics for their applied procedure.JSP技术发展史Java Server Pages(JSP)是一种基于web的脚本编程技术,类似于网景公司的服务器端Java脚本语言—— server-side JavaScript(SSJS)和微软的Active Server Pages(JSP)。
Java技术与Web设计外文文献翻译
文献信息文献标题:A Comparative Study of Top Web Design Models that are using Java Technologies(使用Java技术的顶级Web设计模型的比较研究)文献作者及出处:Sathyaseelan B, Cordova R S. A Comparative Study of Top Web Design Models that are using Java Technologies[J].International Journal of Innovations and Advancement in Computer Science. 2016,5(5):41-44字数统计:英文1614单词,8806字符;中文2779汉字外文文献A Comparative Study of Top Web Design Models that areusing Java TechnologiesAbstract In today's professional workplace, enterprise applications are complex, adaptable, distributed, part-based, and mission-critical. They might be conveyed as an assortment of platforms across corporate systems, intranets, or the Internet. They are information driven, easy to use, and should meet stringent prerequisites for security, organization, and support. To put it plainly, they are highly complex systems. Various enterprise applications have been in the market today and there are numerous methods available for developing enterprise applications.This paper discusses the major differences between two competing design models for developing Web applications using Java technologies which are Struts and Java Server Faces (JSF). Struts is an open source java framework and is an action-based framework.On the other hand, JSF is a new technology that supports ready-to-use components for rapid Web application development. These two technologies will be analyzed depending on the factors such as the controller flexibility or event handling, navigation, page development, integration and extensibility.Keywords: web design models, Struts, Java Server Faces and Java technologiesI.IntroductionA STRUT is a web application system that has been popular over Java Servlets. It envelops the ordinarily utilized MVC design pattern. A STRUT automates normal tasks, liberating up to explore more of the Action- to-result pages mapping utilizing SML-based configurations. The system makes the progress level subtle elements of the usage of Web-based applications and gives a bit of structural software. JavaServer Faces (JSF) abridges the development of web application user interfaces, usually by defining a user interface component model tied to a well-defined request processing lifecycle. It characterizes a set of UI components— basically, a balanced mapping of the html structure component set along with some extras—that could a be utilized as an application programming interface for extending and modifying standard components or developing new components.II.Key DifferencesThe figures below illustrate the key differences between a STRUTS and JSF request-response scenario. This is necessary in order to fully understand the architecture of each web design models.Figure 1. Struts Request-Response ScenarioIn figure 1, the client sends request to server through a web-browser for aparticular resource. This request is forwarded to the server through a Controller. A servlet goes about as a controller, accepting all requests from the customer. The servlet hands off the request to a different business layer for handling. When processing is finished, the servlet advances or diverts the request to a JSP, which is exclusively in charge of creating the following view for the client. There is no business logic within the JSP.Figure 2. JSF Request-Response ScenarioIn figure 2, the server handles requests from the client, starting from an initial request to a postback request. When a client makes an underlying request for a page, it is asking for the page for the first time. When a client executes a postback, it presents the structure contained on a page that was beforehand stacked into the program as a result of executing an underlying request. When the life cycle handles an underlying request, it just executes the restore view and renders response phases in light of the fact that there is no client information or activities to prepare. Then again, when the life cycle handles a postback, it executes the majority of the phases.III.MethodologyIn this study we will compare JSF and Struts. We will create two modelsemploying the JSF and Struts request-response scenario. JSF is a “component” framework while Struts is an “action” framework.This paper compares and evaluates the ease of application development and the performance of two design models (Struts and JSF) by presenting the two design models and critically analyzes each technology.IV.ChallengesWeb Development ChallengesThe challenges in Web development are much more than the application development. The main challenge is in hosting the application over a webserver and then handling the network issues while accessing those via network. The performances of the web-based application are based on the network availability and its speed. These are not challenges for desktop applications as they run on the local host and the resources are based only on that system.Challenges in STRUTSDespite the fact that Struts accompanies a rundown of remarkable elements however it is important not to neglect the few negative applications about Struts and would require loads of improvements.Greater expectation to learn and adapt - To utilize MVC with STRUTS, you must be alright with the standard JSP, Servlet APIs and a substantial and elaborate system.Poor documentation - Compared to the standard servlet and JSP APIs, STRUTS has less online resources, and some first-time clients locate the online Apache documentation confusing and inadequately sorted out.Less straightforward -With STRUTS applications, there is significantly more going ahead in the background than with ordinary Java-based Web applications which makes it hard to comprehend the system.Challenges in JSFJSF is a very powerful innovation for creating Java-based web applications. It is intended to improve the development of client interfaces for Java Enterprise Edition (Java EE) applications via programmed handling of low level HTTP requests andclient information processing. JSF utilizes a part based model for web advancement. Utilizing the visual JSF web application instrument offered by NetBeans () integrated development environment (IDE), segments can be actually "painted" on a virtual JSF page by relocating them from a palette of JSF segment library.Event handlers can then be characterized for every part the same route concerning creating standalone Java graphical user interface (GUI) application. Route standards are determined for every page from a central XML arrangement document (faces-config.xml). Client activities on a web interface will trigger an event which in return figures out which page is to be shown along the rules specified on that page.This methodology encourages measured and adaptable design, making web application development much more straightforward and faster.The route decides determined for that page. This methodology encourages measured and adaptable configuration, making web application advancement much less difficult and speedier.V.AnalysisIn this study, STRUTS and JSF were analyzed in terms of their controller flexibility or event handling, navigation, page development, integration and extensibility. This is important to compare each web design model and present the advantages and disadvantages of each technology.Controller Flexibility/Event HandlingController is considered as the heart of the Struts. It uses the Front Controller Pattern and Command Pattern. A single servlet takes a request, and then translates HTTP parameters into a Java ActionForm, and passes the ActionForm into a Struts Action class. The URI designates which Action class need to be executed. The Struts framework has one single event handler for the HTTP request. When the request is met by the event handler, the Action returns the result back to the front controller. This in turn will be used to choose the navigation destination.Controller Pattern is been used by the JSF. Each face request goes through asingle servlet, whose responsibility is to get a faces page with components. It will then trigger the events for each component and render the components using a render toolkit. It is also possible to bound the components to the data from its model. JSF have several event handlers on a page while Struts is geared to one event per request. In addition, with Struts, the ActionForms have to extend Struts classes, creating another layer of complicated coding while JSF gives the ability to peg into the model without breaking layering.NavigationNavigation is a key feature of both Struts and JSF. There are 2 types of navigation: static navigation - when the output of a particular page is known so that it is very easy to predict its expected output; and dynamic navigation – when the output is unpredictable and some business logic determines the output of that particular page. Both frameworks have a declarative navigation model and define navigation using rules inside their XML configuration file. Both JSF and Struts support both types of navigation.Page DevelopmentJSF was built with component models which support RAD development, while struts don’t have that support. The Struts framework provides custom libraries to peg into Action Forms and offers some utilities. JSF provides the ability to build components from a variety of view technologies and does it in such a way to be component based.IntegrationStruts are model neutral, so there is no special hook into a model layer. The page data has to be moved from the Action Form to another Model input format which requires heavy complicated coding. The ActionForm class, provides an extra layer of tedious coding and state transition.JSF, on the other hand, encapsulates and hides the details of any data inside the component tree. Data grids and similar rich components can be bound to any Java class. This allows the combination of JSF and SDO which are powerful RAD development.ExtensibilityBoth Struts and JSF offers the extension of framework to meet expanding requirements. Struts have RequestProcessor class that has various callback methods and is the major grip for struts throughout the life-cycle of a request. JSF also have similar functionality to outspread special life-cycle interfaces. Apart from this, JSF totally decouples the render phase from the controller. This considered as on of the main important feature of JSF that Struts does not incorporate.VI.ConclusionJSF is a much more flexible framework while struts is a sturdy framework and works well. JSF is a strong framework because of its flexible controller and navigation. Furthermore, JSF is built with integration and extensibility. From a strategic direction and programming model, JSF can be a target of new applications.中文译文使用Java技术的顶级Web设计模型的比较研究摘要在当今的专业工作环境中,企业应用程序是复杂的、可适应的、分布式的、基于部件的和任务关键的。
网站毕业设计外文翻译 精品
WebsiteFrom Wikipedia, the free encyclopediaA website is a collection of related web pages, images, videos or other digital assets that are addressed relative to a common Uniform Resource Locator (URL), often consisting of only the domain name, or the IP address, and the root path in an Internet Protocol-based network. A web site is hosted on at least one web server, accessible via a network such as the Internet or a private local area network.A web page is a document, typically written in plain text interspersed with formatting instructions of Hypertext Markup Language (HTML, XHTML).A web page may incorporate elements from other websites with suitable markup anchors.Web pages are accessed and transported with the Hypertext Transfer Protocol (HTTP), which may optionally employ encryption (HTTP Secure, HTTPS) to provide security and privacy for the user of the web page content. The user's application, often a web browser, renders the page content according to its HTML markup instructions onto a display terminal.All publicly accessible websites collectively constitute the World Wide Web.the pages of a website can usually be accessed from a simple Uniform Resource Locator called the homepage. The URLs of the pages organize them into a hierarchy, although hyperlinking between them conveys the reader's perceived site structure and guides the reader's navigation of the site.Some websites require a subscription to access some or all of their content. Examples of subscription sites include many business sites, parts of many news sites, academic journal sites, gaming sites, message boards, web-based e-mail, social networking websites, and sites providing real-time stock market data.1.HistoryThe World Wide Web (WWW) was created in 1989 by CERN physicist Tim Berners-Lee.On 30 April 1993, CERN announced that the World Wide Web would be free to use for anyone.Before the introduction of HTML and HTTP, other protocols such as filetransfer protocol and the gopher protocol were used to retrieve individual files from a server. These protocols offer a simple directory structure which the user navigates and chooses files to download. Documents were most often presented as plain text files without formatting or were encoded in word processor formats.2.OverviewOrganized by function, a website may be(1)a personal website(2)a commercial website(3)a government website(4)a non-profit organization websiteIt could be the work of an individual, a business or other organization, and is typically dedicated to some particular topic or purpose. Any website can contain a hyperlink to any other website, so the distinction between individual sites, as perceived by the user, may sometimes be blurred.Websites are written in, or dynamically converted to HTML (Hyper Text Markup Language) and are accessed using a software interface classified as a user agent. Web pages can be viewed or otherwise accessed from a range of computer-based and Internet-enabled devices of various sizes, including desktop computers, laptops, PDAs and cell phones.A website is hosted on a computer system known as a web server, also called an HTTP server, and these terms can also refer to the software that runs on these systems and that retrieves and delivers the web pages in response to requests from the website users. Apache is the most commonly used web server software (according to Netcraft statistics) and Microsoft's Internet Information Server (IIS) is also commonly used.3. Static websiteA static website is one that has web pages stored on the server in the format that is sent to a client web browser. It is primarily coded in Hypertext Markup Language (HTML).Simple forms or marketing examples of websites, such as classic website, a five-page website or a brochure website are often static websites, because they present pre-defined, static information to the user. This may includeinformation about a company and its products and services via text, photos, animations, audio/video and interactive menus and navigation.This type of website usually displays the same information to all visitors. Similar to handing out a printed brochure to customers or clients, a static website will generally provide consistent, standard information for an extended period of time. Although the website owner may make updates periodically, it is a manual process to edit the text, photos and other content and may require basic website design skills and software.In summary, visitors are not able to control what information they receive via a static website, and must instead settle for whatever content the website owner has decided to offer at that time.They are edited using four broad categories of software:(1) Text editors, such as Notepad or TextEdit, where content and HTML markup are manipulated directly within the editor program(2) Wysiwyg offline editors, such as Microsoft FrontPage and Adobe Dreamweaver (previously Macromedia Dreamweaver), with which the site is edited using a GUI interface and the final HTML markup is generated automatically by the editor software(3) Wysiwyg online editors which create media rich online presentation like web pages, widgets, intro, blogs, and other documents.(4) Template-based editors, such as Rapidweaver and iWeb, which allow users to quickly create and upload web pages to a web server without detailed HTML knowledge, as they pick a suitable template from a palette and add pictures and text to it in a desktop publishing fashion without direct manipulation of HTML code.4. Dynamic websiteA dynamic website is one that changes or customizes itself frequently and automatically, based on certain criteria.Dynamic websites can have two types of dynamic activity: Code and Content. Dynamic code is invisible or behind the scenes and dynamic content is visible or fully displayed.(1) Dynamic codeThe first type is a web page with dynamic code. The code is constructed dynamically on the fly using active programming language instead of plain,static HTML.A website with dynamic code refers to its construction or how it is built, and more specifically refers to the code used to create a single web page. A dynamic web page is generated on the fly by piecing together certain blocks of code, procedures or routines. A dynamically-generated web page would call various bits of information from a database and put them together in a pre-defined format to present the reader with a coherent page. It interacts with users in a variety of ways including by reading cookies recognizing users' previous history, session variables, server side variables etc., or by using direct interaction (form elements, mouse overs, etc.). A site can display the current state of a dialogue between users, monitor a changing situation, or provide information in some way personalized to the requirements of the individual user.(2) Dynamic contentThe second type is a website with dynamic content displayed in plain view. Variable content is displayed dynamically on the fly based on certain criteria, usually by retrieving content stored in a database.A website with dynamic content refers to how its messages, text, images and other information are displayed on the web page and more specifically how its content changes at any given moment. The web page content varies based on certain criteria, either pre-defined rules or variable user input. For example, a website with a database of news articles can use a pre-defined rule which tells it to display all news articles for today's date. This type of dynamic website will automatically show the most current news articles on any given date. Another example of dynamic content is when a retail website with a database of media products allows a user to input a search request for the keyword Beatles. In response, the content of the web page will spontaneously change the way it looked before, and will then display a list of Beatles products like CD's, DVD's and books.5. Software systemsThere is a wide range of software systems, such as Java Server Pages (JSP), the PHP and Perl programming languages, Active Server Pages (ASP), Yuma and ColdFusion (CFML) that are available to generate dynamic web systems and dynamic sites. Sites may also include content that is retrievedfrom one or more databases or by using XML-based technologies such as RSS.Static content may also be dynamically generated either periodically, or if certain conditions for regeneration occur (cached) in order to avoid the performance loss of initiating the dynamic engine on a per-user or per-connection basis.Plugins are available to expand the features and abilities of web browsers, which use them to show active content, such as Microsoft Silverlight, Adobe Flash, Adobe Shockwave or applets written in Java. Dynamic HTML also provides for user interactivity and real time element updating within web pages (ie pages don't have to be loaded or reloaded to effect any changes), mainly using the Document Object Model (DOM) and JavaScript, support which is built-in to most modern web browsers.Turning a website into an income source is a common practice for web developers and website owners. There are several methods for creating a website business which fall into two broad categories, as defined below.(1) Content-based siteSome websites derive revenue by selling advertising space on the site (see Contextual advertising).(2) Product- or service-based sitesSome websites derive revenue by offering products or services for sale. In the case of e-commerce websites, the products or services may be purchased at the website itself, by entering credit card or other payment information into a payment form on the site. While most business websites serve as a shop window for existing brick and mortar businesses, it is increasingly the case that some websites are businesses in their own right; that is, the products they offer are only available for purchase on the web.Websites occasionally derive income from a combination of these two practices. For example, a website such as an online auctions website may charge the users of its auction service to list an auction, but also display third-party advertisements on the site, from which it derives further income.网站文章来自维基百科,自由的百科全书网站是一组相关的网页,图片,视频或其他数字资产的集合,是针对相对的一个共同的统一资源定位符(URL),这个定位器往往由域名,或组成的IP地址在以网络为基础的互联网协议上的根路径构成。
计算机 JSP web 外文翻译 外文文献 英文文献
外文资料所译外文资料:①作者:Dan Malks②书名:Professional JSP③出版时间: 2000.7.26④所译章节: Chapter 1212.1IntroductoryGood Web application design tries to separate business objects, presentation, and manipulation of the objects into distinct layers. One benefit of using JavaServer Pages technology is that it allows us to separate the role of a Web designer more clearly from that of a software developer. While on a small-scale project, one individual may occupy both roles, on a larger project, they are likely to be separate and it is beneficial to separate their workflows as much as possible. Designing the architecture for your Web application is crucial to this separation.12.2 JSP architectureWe will examine a variety of ways to architect a system with JavaServer Pages, servlets, and JavaBeans. We will see a series of different architectures, each a development of the one before. The diagram below shows this process in outline; the individual parts of the diagram will be explained in turn later in this article.JSP architecture:When Sun introduced Java Server Pages, some were quick to claim that servlets had been replaced as the preferred request handling mechanism in Web-enabled enterprise architectures. Although JSP is a key component of the Java 2 Platform Enterprise Edition (J2EE) specification, serving as the preferred request handler and response mechanism, we must investigate further to understand its relationship with servlets.Other sections of Professional JSP explain the implementation details of JSP source translation and compilation into a servlets. Understanding that JSP is built on top of the servlet API, and uses servlet semantics, raises some interesting questions. Should we no longer develop stand-alone servlets in our Web-enabled systems? Is there some way to combine servlets and JSPs? If so, where do we place our Java code? Are there any other components involved in the request processing, such as JavaBeans? If so, where do they fit into the architecture and what type of role do they fulfill?It is important to understand that, although JSP technology will be a powerful successor to basic servlets, they have an evolutionary relationship and can be used in a cooperative and complementary manner.Given this premise, we will investigate how these two technologies, each a Java Standard Extension, can be used co-operatively along with other components, such as JavaBeans, to create Java-based Web-enabled systems. We will examine architecturalissues as they relate to JSP and servlets and discuss some effective designs while looking at the tradeoffs of each. Before jumping directly into a discussion of specific architectures, though, we will briefly examine the need to develop a variety of architectures.12.3 Code factoring and role separationOne of the main reasons why the JavaServer Pages technology has evolved into what it is today (and it's still evolving) is the overwhelming technical need to simplify application design by separating dynamic content from static template display data. The foundation for JSP was laid down with the initial development of the Java Web Server from Sun, which used page compilation and focused on embedding HTML inside Java code. As applications came to be based more on business objects and n-tier architectures, the focus changed to separating HTML from Java code, while still maintaining the integrity and flexibility the technology provided.In Chapter 5, JSP Sessions, in Professional JSP, we saw how beans and objects can be bound to different contexts just by defining a certain scope. Good application design builds on this idea and tries to separate the objects, the presentation, and the manipulation of the objects into distinct, distinguishable layers.Another benefit of using JSP is that it allows us to more cleanly separate the roles of a Web production/HTML designer individual from a software developer. Remember that a common development scenario with servlets was to embed the HTML presentation markup within the Java code of the servlet itself, which can be troublesome. In our discussion, we will consider the servlet solely as a container for Java code, while our entire HTML presentation template is encapsulated within a JSP source page. The question then arises as to how much Java code should remain embedded within our JSP source pages, and if it is taken out of the JSP source page, where should it reside?Let's investigate this further. On any Web-based project, multiple roles and responsibilities will exist. For example, an individual who designs HTML pages fulfills a Web production role while someone who writes software in the Java programming language fulfills a software development role.On small-scale projects these roles might be filled by the same individual, or two individuals working closely together. On a larger project, they will likely be filled by multiple individuals, who might not have overlapping skill sets, and are less productive if made too dependent on the workflow of the other.If code that could be factored out to a mediating servlet is included instead within HTML markup, then the potential exists for individuals in the software development role and those in the Web production role to become more dependent than necessary on the progress and workflow of the other. Such dependencies may create a more error-prone environment, where inadvertent changes to code by other team members become more common.This gives us some insight into one reason why we continue to develop basic servlets: they are an appropriate container for our common Java code that has been factored out of our JSP pages, giving our software development team an area of focus that is as loosely coupled to our JSP pages as possible. Certainly, there will be a need for these same individuals to work with the JSP source pages, but the dependency is reduced, and these pages become the focus of the Web-production team instead. Of course, if the same individual fulfills both roles, as is typical on a smaller project, such dependencies are not a major concern.So, we should try to minimize the Java code that we include within our JSP page, in order to uphold this cleaner separation of developer roles. As we have discussed, some of this Java code is appropriately factored to a mediating servlet. Code that is common to multiple requests, such as authentication, is a good candidate for a mediating servlet. Such code is included in one place, the servlet, instead of potentially being cut and pasted into multiple JSPs.We will also want to remove much of our business logic and data access code from our JSP page and encapsulate it within JavaBeans, called worker or helper beans. We start to see a pattern of code movement from our JSP into two areas: a servlet (or JSP) that sits in front of the main JSP, and JavaBeans that sit in back. We refer to this common pattern as "Factor Forward -- Factor Back," as shown in the figure below:Factor Forward -- Factor Back:Another way to think about what code should be localized and encapsulated is that our JSP page should reveal as little as possible of our Java code implementation details.Rather, the page should communicate our intent by revealing the delegating messages we send to worker beans, instructing them to get state from a model, or to complete some business processing.12.4 Redirecting and forwardingRedirecting and forwarding requests in JSPs and servlets takes place often, and it is important to understand the subtle difference between these two mechanisms even though they achieve the same goal (that is, a client asks for a resource on the server and a different resource is served to it):●When a servlet or JSP resource chooses to redirect the client (using aresponse.sendRedirect(url)) the request object does not reach the second resource directly since the underlying implementation is an HTTP redirect.The server sends an HTTP 302 message back to the client telling it that the resource has moved to another URL, and that the client should access it there.The bottom line is that the lifecycle of the initial request object that was accessed in the first JSP terminates with the end of the service method in the first JSP, or with the reply from the server.●In a forward mechanism the request object is forwarded to the second resource,thus maintaining any object bindings to the request and its state, without a round trip to the client on the network. This allows the first JSP to do some work internally and then send information to the second JSP asking it to do itsbit. (Servlets used a chaining mechanism to do this). See Chapter 5, JSP Sessions, in Professional JSP to get a clearer picture of scope. JSPs and servlets can use the forwarding mechanism to delegate tasks among themselves, in the process of separating dynamic and static content.Now, let's investigate how we build these systems.12.5 ArchitecturesBefore discussing specific architectures that we can use to build systems with servlets and JSP, it is worth mentioning two basic ways of using the JSP technology. Each of the architectures discussed in this chapter will be based on one of these approaches:●The first method is referred to here as the page-centric (or client-server)approach. This approach involves request invocations being made directly to JSP page.●In the second method, the dispatcher (or n-tier) approach, a basic servlet orJSP acts as a mediator or controller, delegating requests to JSP pages and JavaBeans.We will examine these approaches in light of a simple example, which will evolve to satisfy the requirements of various scenarios. The initial scenario involves providing a Web interface for guessing statistics about a soon-to-be-born baby. The guesses are stored, and can be reviewed later by the parents, to see who has guessed the closest. As the requirement scenarios become more sophisticated, such as adding the desire for a persistence mechanism, the solution scenarios will become more sophisticated, as well. Thus, our example will evolve and we will gain an understanding of how the various architectures that we discuss will help us build a system that satisfies these requirements in an elegant and effective manner.12.6 The page-centric approachApplications built using a client-server approach have been around for some time; they consist of one or more application programs running on client machines and connecting to a server-based application to work. (A good example would be a PowerBuilder or Oracle Forms-based system.) CGIs and pre-servlet applications were generally based on this simple 2-tier model, and with the introduction of servlets, 2-tier applications could also be created in Java.This model allows JSPs or servlets direct access to some resource like a database or legacy application to service a client's request: the early JSP specifications termed this a "Model 1" programming approach. The JSP page is where the incoming request is intercepted and processed, and the response is sent back to the client;JSPs only differed from servlets in this scenario by providing cleaner code and separating code from the content by placing data access in beans.Model 1 programming approach:The advantage of such an approach is that it is siple to program,and allows the page author to Generate dynamic content easily,based upon the request and the state resources.However this architecture does not scale up well for a large number of simultaneous clients since there would be a significant amount of request processing to be performed,and each request must establish or share a potentially scarce/expensive connection to the resource in question.(A good example would be JDBC connectons in servlets or JSPs and the need for connection pools.) Indiscriminate usage of this architecture usually leads to a significant amount of Java code embedded within the JSP page,this may not seem to be much of a problem for Java developers but it is certainly an issue if the JSP pages are maintained by designers:the code tends to get in the designe’s way,and you run the risk of your code becoming corrupted when others are tweaking the look and feel.译文12.1前言好的Web应用设计试图将业务对象,简报以及操作对象分为不同的层面。
信息工程网站设计与制作中英文对照外文翻译文献
中英文外文翻译(文档含英文原文和中文翻译)Web design and productionSummaryPapers will expand the personal web design and production methods, tools and other research and discussion. Based on the introduction of web design and production of language, the emphasis on using the JavaScript language as a tool for the actual operation of web design and production of, respectively, based on the object of the JavaScript language, the use of internal object system and WEB pages of information exchange - windows and frameworks Detailed description of the use of specific examples and verified.1. IntroductionWith the advent of the 21st century, people are more and more important to feel the life and work of the computer's role in the increasingly professional needs to have a computer application skills deeply. Is required to master the computer profession, but also career development needs. Web design and production is a concrete manifestation of the ability of a computer, this chapter introduces the relevant knowledge of web design.1.1 Web Design OverviewWebsite is a way businesses and users to provide information (including products and services) to the user, is the enterprise e-commerce infrastructure and information platform, leave the site (or just use a third-party site) is not possible to talk about e-commerce . Corporate web site called "network brand", also part of intangible assets, and the site is an important window of publicity and reflect the corporate image and culture on the INTERNET.Web Design Elements 1.2Two elements of web design are: overall style and color matching. First, determine the overall style of the siteApplication chapter HTML web design technology2.1 HTML language descriptionHTML (HyperText Mark-up Language) ie, HTML, or Hypertext Markup Language, is currently the most widely used language network, but also constitute the primary language of the document pages.HTML text is composed by HTML commands descriptive text, HTML commands can explain text, graphics, animation, sound, tables, links, and so on. HTML structure includes a head (Head), the specific content of the body (Body) into two parts, of which the head of the description of the browser you want, and the body contains the desired note.Features 2.1.1 HTML languageHTML document production is not very complex and powerful, supporting different data file formats insert, which is one of the reasons for the prevalence of WWW, HTML language characteristics are as follows:1, simplicity, HTML version upgrade using a superset of the way, which is more flexible and convenient.2, scalability, widely used in HTML language brings to strengthen capabilities and increase identifiers and other requirements, HTML elements take the form of a subclass, bring assurance system expansion.3, platform independence. While the PC is popular, but the use of MAC and other machines out there, HTML can be used on a wide range of platforms, and this is another reason for theprevalence of WWW.2.1.2 HTML language editing softwareHTML is the essence of the text, you need to explain your browser, HTML editor can be roughly divided into three types: 1, the basic editing software, using WINDOWS notepad or write version can be written, of course, if you use WPS to write, you can. However, please use .htm or .html as the extension, so the browser can interpret save when executed.2, semi-WYSIWYG software, which can greatly improve development efficiency, it can make you make a Homepage in a very short period of time, and you can learn HTML, this type of software has HOTDOG, as well as domestic Software web workshop.3, WYSIWYG software, the most widely used editor, can understand a little HTML knowledge can make pages.Application chapter HTML web design technology2.2.3 JavaScript technology in web designOne, JavaScript OverviewJavaScript is an object-based (Object) and event-driven (Event Driven) and safety performance have scripting language. Its purpose is to use HTML and HTML, Java scripting language (Java applet) link together to achieve multiple objects in a Web page, the Web client interactions. Which can develop client applications. It is by embedding or transferred in standard HTML language implemented. It appears to make up for the shortcomings of HTML language, which is a compromise choice for Java and HTML, has the following basic characteristics:1, is a scripting languageJavaScript is a scripting language, which uses a small way to block implementation of programming. Like other scripting languages, JavaScript is an interpreted language is also, it provides an easy development process.Its basic structure with C, C ++, VB, Delphi is very similar. But it is not like these languages, you need to compile, but is interpreted line by line in the program is running. It is combined with HTML markup, so as to facilitate the user's operation.2, object-based language.JavaScript is an object-based language, but to be seen as an object-oriented. This means that itcan use objects that they have created. Therefore, many functions can be derived from the interaction of methods and scripts scripting environment object.3. SimplicitySimplicity is mainly reflected in JavaScript: First, it is a Java basic statements and control flow above the simple and compact design based on order for Java is a very good transition study. Secondly, it is the use of weakly typed variable type, did not use strict data types.4, securityJavaScript is a safe language, it does not allow access to the local hard disk, data can not be stored on the server, the network is not allowed to modify and delete documents, can only be achieved through a dynamic interactive information browsing or browser. Thus effectively prevent the loss of data.5, the dynamic nature ofJavaScript is dynamic, it can respond directly to the user or customer input, without going through the Web service program. It reflects the user's response, is the use of event-driven manner. The so-called event-driven, meaning the implementation of certain actions arising from the action on the home page (Home Page), and is called the "event" (Event). For example, pressing the mouse button, move the window, select the menu and so can be considered an event. When the event occurs, it may cause the appropriate incident response.6, cross-platformJavaScript is dependent on the browser itself, regardless of the operating environment, as long as the computer running the browser, and the browser supports JavaScript can be executed correctly. In order to achieve the "write once, everywhere" dream.In fact the most prominent place JavaScript program that can be used to do a lot of little things. No need to have a high-performance computers, software is only a word processing software and a browser without WEB server channels through their computer to complete everything.In short, JavaScript is a new description language, it can be among the clamp into the HTML file. JavaScript language can be done to respond to the needs of the user event (such as: form input) without any network transfer data back and forth, so that when a user enters a material, it does not pass through the servo end (server ) processing, and transmits it back to the process, and can be directly handled by the client (client) apps.Chapter III WEB page interaction information - Forms and FrameworkTo achieve a dynamic interactive web pages, you must master the form object (Form) and the frame object (Frames) more complex knowledge.3.1 Form BasicsForm object allows designers can form different elements interact with client users, and do not need to carry out before the first data entry, you can dynamically change the behavior of Web documents.3.1.1 Form objectForm (Form): It constitutes the basic element of a Web page. Usually a Web page has a form or several forms, using Forms [] array to achieve different forms of access.Methods 3.1.2 Form objectThe method of the form object is only one --submit () method, which main function is to achievea form of information submitted.3.1.3 Form object propertiesForm object properties include the following: elements name action target encoding method. In addition Elements addition, several other forms of state are reflected in the corresponding attribute identifier, which is usually a form of individual identification; and the array elements are often more than one form element values.3.1.4 Access form objectAccess form object in JavaScript by two methods: (1) the form by visitingFirst, you must specify the name of the form in the property of a form object, and after you can access the form by following identifies as: document.Mytable ().(2) to access the form by the arrayIn addition to using the form name to access the form, you can also use the form to access the form object array of objects. But note that, due to the form object is to provide a browser environment, and the array subscript browser environment provided is from 0 to n.3.1.5 references prerequisite formConditions in JavaScript want to form reference is: you must first create a form on the page to identify with, and forms part of the place before the reference definition.3.2 The basic elements of the formForm the basic elements of the buttons, radio buttons, check buttons, submit buttons, reset buttons, text boxes and other components.In JavaScript you want to access these basic elements must be achieved through a specific form elements corresponding array subscript or form element names. Each element is referenced by major property or method of the element.3.3 FrameworkFrame Frames main function is to "split" the window, so that each "small window" can show different HTM L files, interaction between different frameworks (interact), which means you can exchange messages and data between different frameworks. For example: Suppose you opened two frames, the first frame of the book catalog can be displayed, and the second frame displays specific content sections.Framework can be divided into different areas of the screen, each region has its own URL, through Frames [] array of objects to achieve access to different frameworks. Frame object itself is actually a class of window, it inherits all the characteristics of a window object, and has all the attributes and methods. Specific examples illustrate the use of the frameworkAccess Framework 3.4In front of us had to use document.forms [] to access the different elements to achieve a single form. In order to achieve access to the different elements of the framework of multi-form, you must use the window object Frames property. Frames property is also an array, he focused on the parent frame for each sub-frame is provided with one.网站设计与制作摘要论文将对个人网页设计与制作的方法、工具等展开研究和探讨。
网站设计英文参考文献(专业推荐112个)
网站是各大领域对自己得主要理念以及产品等进行宣传得一个主要场地,做好网站页面表现层得结构设计对于网络安全性得维护十分重要,因此也得到了各个领域得广泛重视。
下面是为大家带来得网站设计英文参考文献得介绍,以供学习借鉴。
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网页制作Dreamweaver外文文献及翻译Dreamweaver 3.0 is the newest version of Dreamweaver-a tool for compiling web pages, introduced by Macromedia Company. Its feature is "what you see is what you get"-this is really a blessing for novice. Also, it has functions for web site management, facilitating design and management of multiple web sites. Fig. 1 is the interface when Dreamweaver 3. 0 is activated.1. A Brief Introduction of Dream weaverCompared with its predecessor Dreamweaver 2.0, Dreamweaver3.0 is more friendly and practical for use in its operating interface, and its function has been further improved. 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CSS and the JavaScript coordination use, may extremely simply realize the homepage dynamic effect.(2) Dream weaver 3.0 new functionsDream the weaver 3.0 new characteristics strengthened the function, improved the website management, the permission user increase navigation fence (Navigation Bar), the picture map (Images Maps) and so on the element, causes the work flow, the user and expands Dream weaver.(a) HTML edition functionFast label editorCauses the user not to need to leave Dream the weaver documents window to be allowed fast to revise, the increase, to move the HTML label.HTML styleIn 3.0 may use the standard HTML label in Dream weaver which the multi- browsers supports to found the style (for instance label and label), but in the before edition, only could use the level to fold the style list (CSS).(c) Founds and the edition object and the page elementThe user may be allowed with ease to obtain the commonly used object in the object kneading board. 1662。