商城购物系统设计中英文对照外文翻译文献
电子商务网上购物中英文对照外文翻译文献
中英文对照外文翻译(文档含英文原文和中文翻译)附件1：外文翻译译文网上购物的自由、控制和乐趣网上购物的消费者数量和网上购物的数额正在上升；费雷斯特研究公司估计，今年互联网销售额是去年的20亿倍以上。
相比之下，美国去年的整体零售销售额达13万亿美元。
因此，目前电子商务的销售额仅占零售销售额的1%左右。
专家和学者闷得争执消费者网上消费的百分比的可能上限。
网上消费上限将超过其他直接营销的15%，或者如费雷斯特研究公司所建议的，到2010年占许多零售采购产品类别的1/3.最终，在何种程度上满足购物目标导向和有经验的消费者需求将影响消费者会选择花在每个环境中的美元金额。
虽然许多作家都在鼓吹在线媒体提供交互性和个性化的体验的独特功能，例如，很少有系统的集中于网上购物者真正需要什么，以及为什么他们把网上购物放在第一位清楚的了解什么激发消费者网上购物可以并应告知战略、技术和市场营销的决定，以及网站设计。
那么，什么激发网上购物？在离线的环境中营销人员认识到，消费者不同的消费方式取决于他们用于搜索的动机是否主要是体验（因为好玩）还是目标导向（因为效率高）。
我们的网上客户的研究表明，这两种动机同样可以推广到在线环境。
体验行为特别可能发生在消费者有一个持续的爱好型的兴趣类别中。
收藏家和爱好者享受“惊险的狩猎”一样收藏各种收藏品。
同样，有时间保证和欲望刺激可以引起更多的体验购物行为。
学者们还发现，更高的娱乐性与体验行为比专注于目标的购物引起更积极的情绪、更大的网上购物满意度和更高可能性的购物冲动行为。
目标导向或功利购物已被各种营销学者描述为任务导向的，高效的，合理的和蓄意的。
因此，专注于目标的购物是以交易为导向，希望快速购买他们想要的东西而无需焦急。
零售消费者将功力购买描述为“工作”和评估其努力的成功的条款通常与工作表现相关词汇联系起来，如“成功”“完成”。
重要的是，市场调查公司发现，2/3到4/5的互联网买家从事特定产品的狭义在线搜索。
电子商务退货系统中英文对照外文翻译文献
中英文对照外文翻译(文档含英文原文和中文翻译)Electricity return system1.Title of the SystemReturn system is an essential part of all e-commerce sites, consumers are all want to buy goods or services on the Internet is guaranteed, no return of the system, it means that the consumers as long as it is paid out, the product must be consumer, no matter whether to buy the goods consumers need, have to bear the risk alone, this is not fair for the consumer, not strictly, perfect return system, e-business cannot be long-term survival.Return system, is online shopping platform, according to some consumption agreement can not only guarantee the safety of the consumer, also make merchants also tend to reduce consumer pays to encounter unscrupulous merchants and probability, and reduce themerchants have unreasonable the probability of the customer.Enable e-commerce platform to better survive longer.So, any e-commerce platform from the return of the platform system.2.Objectives of the SystemThis system is a typical electricity company manager to handle all sorts of the best choice for return requirements.The system development is the purpose of through the provision of computer system, to improve the rationality of the return, manage the interests of consumers and businesses, make full use of personnel's ability, in order to realize the company's goals.It provides a platform for the electricity order information list and returned the details is easy to use solution.The project achieve the following goals:It is a powerful management system, provide for the general electric business platform for return of the interface.Unlike other systems, it is stable, fast, safe and can use maintainable software.The system provides the details of the return in the form of effective information and order information.It will be to provide the return of details to generate various reports and statistical data.3.Input to the SystemThe input data of this system, mainly through the form input.The system provides the end user has a good interface provides a simple.Input is the process from consumers and businesses online, there is no we can substitute.The following methods of input from the user depend on thefunction and enter the expected effect.(1)Login.javaSystem allows a valid user name and password to access the home er and password in order to verify the system is safe.(2)WriteReturnMessage.javaIn this approach, consumers can fill in a refund reason and refund amount, and can upload the return of the need to use the images, the refund details including the refund of reason, leave a message to businesses, companies need a refund amount, etc.(3)UpdateInformation.javaThis approach allows consumers and businesses for their personal information details.The detailed information including contact phone number, shipping address, etc.Businesses and consumers can be modified by changing the button and deposit in the database.4.Output of the System(1)MyselfInformation.javaIn the upper right corner of the system, you can see there is a button, click on the following would be the MyselfInformation. In Java, and then based on the storage of login id, can be consumer or business name, contact phone number, shipping address such as shown.(2)Orderlist.javaThis approach allows consumers to check all order details.System in order for every order generates a unique identification number.Order information including order number, order time, purchase quantity, order status, customer accounts, order the total price, article number, commodity picture, commodity price and name of commodity, etc.(3)ReturnList.javaThis approach allows consumers and businesses to check the detailed information list all returned.System in order for every single back to generate a unique identification number.Return a single information including a refund number, order number, customer accounts, total price order, refund amount, refund time, refund status, merchant accounts, etc.5.Process LogicThis system mainly divided into three functional modules: administrator user function module, user function module of consumers and business users function module.Consumers can through the menu bar "query information", "personal information", "query all orders", "query already delivery orders", "query is not shipment order", "query have been receiving orders", "orders" of the query returns the function such as options.Among them, the query all orders can be opposite has delivery, did not deliver goods, have been receiving orders for queries, simplify the operation of consumers, and save time.Quickly solve the problem of return for consumer laid a good foundation.For businesses, the return of the system to protect the interests of businesses also appears as important.Through the electronic return system can conveniently query merchants received consumer's application for refund.Through the login system also can query to run the store sales, consumers return the cause and the refund amount, etc., establish a call between businesses and consumers.Merchants "to check the return reason" function allows merchants timely grasp the consumers return reason, better improve their stores, in order to improve the benefit of theirstores.6.Limitations of the Project(1)the interface design is relatively simple, the lack of dynamic effects, as well as a friendly reminder.(2)the personnel of the service when handling return dispute algorithm is lack of convincing.7.Tools/Platforms, Language usedThis system at the front desk mainly using JSP technology.The background using the servlet technology, combined with spring MVC thought to carry on the design and implementation.Database using Mysql relational database.Development is the eclipse development tools used, tomcat as a test server.JSP technology, JSP full name for the Java Server Pages, Chinese named Java Server Pages, the root is a simplified design of Servlet, JSP technology is similar to the ASP technology, it is in a traditional web page HTML files (scriptlets) and insert the Java program in JSP tags (tag), thus forming a JSP file, the suffix called (*. JSP).Use JSP development of Web application is cross-platform, can run under Linux, can also run on other operating systems.Java Servlet is JSP technology base, and a large Web application development requires Java Servlet and JSP to cooperate to complete.JSP with Java technology is simple and easy to use, fully object-oriented, with platform neutrality and safe and reliable, and for all the characteristics of the Internet.8.Are you doing the system for industry /client?Not, I do is, browser/server system is applied to the browser9.Scope of Future ApplicationE-commerce platform10.Backgroud of the SystemSocial development faster and faster, people pursue the higher and higher living standards, the accelerating rhythm of life, people's shopping habits are slowly changing.Street shopping, for the people of the gens going to work is a very extravagant thing, rest time, store of rising prices, make people more and more tends to online shopping.The continuous improvement of the Internet, e-commerce has been the rise of the network is virtual, people can see goods only by pictures and video to determine whether to buy, "dirty" businessman to benefit by means of shoddy, make consumer rights are threatened, greater impact at the same time, the development of the economy will slow development.So, what can solve the problem of the Internet is not the same as the physical objects and pictures?Along with the rapid development of network and information technology in all walks of life, the development of online shopping with digital, e-commerce return system emerged.The rapid development of computer technology and logistics delivery service's existence, for the development of electronic commerce laid a strong material base.电商退货系统1.系统摘要退货系统是所有电子商务网站都必不可少的，消费者都是希望自己在网上所买的物品或者服务是得到保证的，没有退货系统，那意味着消费者只要是付完款，产品就必定是消费者的，不管所买到的商品是否是消费者所需要的，都将要独自承担这一风险，这对消费者是不公平的，没有严格，完善的退货系统，电子商务是无法长久生存的。
英文翻译文献-小商品销售管理系统设计
Network Information Management SystemA.Crewe &A.g. paddockFerranti International plcComputer-based supervisory Control and Data Acquisition syetems (SCADA) are already established for the monitoring and control of high voltage （33-400kv）transmission and distribution networks. Systems already installed use semi-graphic Man machine Interface (MMI) technology. New targets are the much higher density low voltage（under 11kv）distribution networks with high resolution colour graphics workstations providing the MMI.These demand facilities to provide fast network roam （Pan）and detail-adding zoom/de-zoom （clutter/declutter）on control engineers multi-windowed displays.To populate the diagram，interfaces are necessary to large sophisticated relational databases and a real-time database which is updated by telemetered values in real-time.Graphics display technology in energy management Systems is not a recent innovation.As early as 1966，monochrome graphics displays using cursive writing technology，with screen resolutions of 1024×1024，were installed to monitor the CEGB supergrid.Since then，graphics displays have become based on high resolution raster technology with a consequent reduction in cost，and colour has come providing typically 256 on screen hues.The de facto industry standard resolution is now 1280×1024 on a 20 to 25 inch diagonal monitor，although higher resolutions，upto 2560×2048，are available at substantially greater cost.Ferranti International has been developing a distribution management system which integrates dynamic display of low voltage networks on high resolution colour graphics equipment with flexible access to the network’s supporting relational databases，able to run on demand，application programs for load forecasting，economic despatch，and power system modelling.Based on extensive experience gained with.Ferranti’s high voltage network SCADA systems，the new product has been termed a network information management system or NIMS.NIMS is written in a combination of ANSI FORTRAN 77 and‘C’.It interfaces to the displays via version 11 of x-Windows（utilising MOTIF）and a relational database via Structured Query Language （SQL）.By making full use of these standards，portability across a wide range of hardware platforms under operating systems such as VMS and UNIX is assured.Use of the X-Windows System provides great System flexibility in terms of display monitor without or distribute these windows over several monitors without any software changes.In addition network can appear in a window providing it adheres to the x-windows standard.The central problem faced by NIMS on a low voltage distribution network is its much higher density compared with a relatively sparsely populated high voltage transmission network. To provide a computer-based colour graphics display replacement for the traditional wall diagram used for the past thirty years，needs some means of representing，with no loss of facilities，a wall area of upto 5 000 square feet.The wall diagram may be old-fashioned technology but the experienced control engineer can access information from widely separated areas of the network in seconds.On the graphics display he must be able to do no less. He must be able to quickly navigate around the network using an overall’world co-ordinate’view with unnecessary detail filtered out and then zoom in with the detail he needs being automatically added to the picture as a function of current magnification.In other cases,he needs to go directly and immediately to a particulat page using a n area or plant item name just as he could using his memory of the wall diagram. These favilities and their necessary speed of operation dictate basic parameters of system performance.Pull down/pop-up menus and display windowing are related graphics features of NIMS which offer something new.Menus are associated with input and greatly reduce the use of the trafitional keyboard,speeding the selectin of options and data entry,acting as an aide memoire to system operation and diminishing keying errors.Display windowing enables different parts of the screen to be used simultaneously for different purposes. A major window may contain a network diagram being dybanically updated whilst a second shows an overview of the whole network indicating the position of the major window on it,and a third contains a tabular list of current alarms which the engineer may scroll up and down. Where NIMS is added to an existing telecontrol system,the display monitors of the telecontrol system can be replaced by windows on the NIMS workstationd.It is possible to expand,contract and move windows containing dynamically updated diagrams and other data,and partially or wholly overlay them. Where operational safety is not prejudiced by a window obscuring vital data,the engineer may be allowed to set up the screen to match his particular requirements at a given time.The flexibility of the colour graphics display allows further types of data to be presented in windows. The emulation of chart recorders with vertically plotted high quality curves is possible and other analogue values can be shown in meter,pie chart, polar co-ordinate form,or as bar graphs. All these help to ensure that information is more easily and rapidly assimilated by control engineers.Behind every network is a vast amount of data associated with network planning and day to day operation.For examplr,on every item of plant there are records covering its location,capacity,manufacturer,when it is due for maintenance and so on.Day to day documentation is held covering job management, scheduled, unscheduled and other safety documents.This type of data is currently accumulated on a variety of computer-based or even written media.With the increases in efficiency and economy being sought,a new generation of network management system is needed with will provide responsive and flexible access to all of this data in addition to the largely diagrammatic data from the network,and integrate the two.As an example of benefits obtainable,one wondow on the display might show part of the network indicating a faulty breaker whilst a secand might show tabular information on the same breaker indicating the maintenance status,obtained form plant records,whilst a third might show tabular information on customers affected by the fault , obtained from customer records.The ability to associate this data on thescreen at the same time relies heavily on the properties of the relational database.A further example integrates diagram dressing with the issue of job lists,swithing forms and permits to work.Disgram dressing carried out on the display by the control engineer to reflect his own actions or those of enginers in the field may be visually and computer vetted against the generation of the requisite documentation and permits,heid on computer-based records.Again the properties of the relational database are vital.When considering data migration,may of the Electricty Distribution Companies have already invested in CAD/CAM equipment and digitised portions of their 11KV Network. Because the majority have purchased Intergraph equipment for this purpose,a conversion tool,using data sourced from one of the Distribution Companies, has recently been completed which translate data in Intergraph format to NIMS format preserving this investment.This tool could be adapted to accommodate other CAD\CAM systems.The graphics information system has had a substantial and beneficial impact on the monitoring of high voltage transmission networks.Powerful new tools such as the Frttanti NIMS are emerging to meet the challenge of monitoringthe much higher density low voltage distribution networks.With their world-eye colour graphics displays,finger-tip access to the entire network relational database,and on-line network modelling,these will bring enormously greater operational convenience and efficiency,contributing to fewer emergency outages,greater safety,more economic generation,extended plant life,and many other improvements to network management,which will result in substantial reductions in operating costs in all sectors.NIMs has been designed to directly replace the wall mimic and paper information systems traditionally used in the electricity distribution industry.However,its applicabilty to utilities as vatied as water and gas is practcal since complementary water and low pressure gas modelling packages can be included.网络信息管理系统Ferranti国际可编程序控制器(plc)计算机监控和数据采集系统(SCADA)已经建立的监测和控制的高电压(33-400kv)输电及配电网络。
毕业设计商场中英文对照英文版
Structural Systems to resist lateral loads Commonly Used structural SystemsWith loads measured in tens of thousands kips, there is little room in the design of high-rise buildings for excessively complex thoughts. Indeed, the better high-rise buildings carry the universal traits of simplicity of thought and clarity of expression.It does not follow that there is no room for grand thoughts. Indeed, it is with such grand thoughts that the new family of high-rise buildings has evolved. Perhaps more important, the new concepts of but a few years ago have become commonplace in today’ s technology.Omitting some concepts that are related strictly to the materials of construction, the most commonly used structural systems used in high-rise buildings can be categorized as follows:1.Moment-resisting frames.2.Braced frames, including eccentrically braced frames.3.Shear walls, including steel plate shear walls.4.Tube-in-tube structures.5.Tube-in-tube structures.6.Core-interactive structures.7.Cellular or bundled-tube systems.Particularly with the recent trend toward more complex forms, but in response also to the need for increased stiffness to resist the forces from wind and earthquake, most high-rise buildings have structural systems built up of combinations of frames, braced bents, shear walls, and related systems. Further, for the taller buildings, the majorities are composed of interactive elements in three-dimensional arrays.The method of combining these elements is the very essence of the design process for high-rise buildings. These combinations need evolve in response to environmental, functional, and cost considerations so as to provide efficient structures that provoke the architectural development to new heights. This is not to say that imaginative structural design can create great architecture. To the contrary, many examples of fine architecture have been created with only moderate support from the structural engineer, while only fine structure, not great architecture, can be developed without the genius and the leadership of a talented architect. In any event, the best of both isneeded to formulate a truly extraordinary design of a high-rise building.While comprehensive discussions of these seven systems are generally available in the literature, further discussion is warranted here .The essence of the design process is distributed throughout the discussion.Moment-Resisting FramesPerhaps the most commonly used system in low-to medium-rise buildings, the moment-resisting frame, is characterized by linear horizontal and vertical members connected essentially rigidly at their joints. Such frames are used as a stand-alone system or in combination with other systems so as to provide the needed resistance to horizontal loads. In the taller of high-rise buildings, the system is likely to be found inappropriate for a stand-alone system, this because of the difficulty in mobilizing sufficient stiffness under lateral forces.Analysis can be accomplished by STRESS, STRUDL, or a host of other appropriate computer programs; analysis by the so-called portal method of the cantilever method has no place in today’s technology.Because of the intrinsic flexibility of the column/girder intersection, and because preliminary designs should aim to highlight weaknesses of systems, it is not unusual to use center-to-center dimensions for the frame in the preliminary analysis. Of course, in the latter phases of design, a realistic appraisal in-joint deformation is essential.Braced Frame sThe braced frame, intrinsically stiffer than the moment –resisting frame, finds also greater application to higher-rise buildings. The system is characterized by linear horizontal, vertical, and diagonal members, connected simply or rigidly at their joints. It is used commonly in conjunction with other systems for taller buildings and as a stand-alone system in low-to medium-rise buildings.While the use of structural steel in braced frames is common, concrete frames are more likely to be of the larger-scale variety.Of special interest in areas of high seismicity is the use of the eccentric braced frame.Again, analysis can be by STRESS, STRUDL, or any one of a series of two –or three dimensional analysis computer programs. And again, center-to-center dimensions are used commonly in the preliminary analysis.Shear wallsThe shear wall is yet another step forward along a progression of ever-stiffer structural systems. The system is characterized by relatively thin, generally (but not always) concrete elements that provide both structural strength and separation between building functions.In high-rise buildings, shear wall systems tend to have a relatively high aspect ratio, that is, their height tends to be large compared to their width. Lacking tension in the foundation system, any structural element is limited in its ability to resist overturning moment by the width of the system and by the gravity load supported by the element. Limited to a narrow overturning, One obvious use of the system, which does have the needed width, is in the exterior walls of building, where the requirement for windows is kept small.Structural steel shear walls, generally stiffened against buckling by a concrete overlay, have found application where shear loads are high. The system, intrinsically more economical than steel bracing, is particularly effective in carrying shear loads down through the taller floors in the areas immediately above grade. The sys tem has the further advantage of having high ductility a feature of particular importance in areas of high seismicity.The analysis of shear wall systems is made complex because of the inevitable presence of large openings through these walls. Preliminary analysis can be by truss-analogy, by the finite element method, or by making use of a proprietary computer program designed to consider the interaction, or coupling, of shear walls.Framed or Braced TubesThe concept of the framed or braced or braced tube erupted into the technology with the IBM Building in Pittsburgh, but was followed immediately with the twin 110-story towers of the World Trade Center, New York and a number of other buildings .The system is characterized by three –dimensional frames, braced frames, or shear walls, forming a closed surface more or less cylindrical in nature, but of nearly any plan configuration. Because those columns that resist lateral forces are placed as far as possible from the cancroids of the system, the overall moment of inertia is increased and stiffness is very high.The analysis of tubular structures is done using three-dimensional concepts, or by two- dimensional analogy, where possible, whichever method is used, it must be capable of accounting for the effects of shear lag.The presence of shear lag, detected first in aircraft structures, is a serious limitation in the stiffness of framed tubes. The concept has limited recent applications of framed tubes to the shear of 60 stories. Designers have developed various techniques for reducing the effects of shear lag, most noticeably the use of belt trusses. This system finds application in buildings perhaps 40stories and higher. However, except for possible aesthetic considerations, belt trusses interfere with nearly every building function associated with the outside wall; the trusses are placed often at mechanical floors, mush to the disapproval of the designers of the mechanical systems. Nevertheless, as a cost-effective structural system, the belt truss works well and will likely find continued approval from designers. Numerous studies have sought to optimize the location of these trusses, with the optimum location very dependent on the number of trusses provided. Experience would indicate, however, that the location of these trusses is provided by the optimization of mechanical systems and by aesthetic considerations, as the economics of the structural system is not highly sensitive to belt truss location.Tube-in-Tube StructuresThe tubular framing system mobilizes every column in the exterior wall in resisting over-turning and shearing forces. The term‘tube-in-tube’is largely self-explanatory in that a second ring of columns, the ring surrounding the central service core of the building, is used as an inner framed or braced tube. The purpose of the second tube is to increase resistance to over turning and to increase lateral stiffness. The tubes need not be of the same character; that is, one tube could be framed, while the other could be braced.In considering this system, is important to understand clearly the difference between the shear and the flexural components of deflection, the terms being taken from beam analogy. In a framed tube, the shear component of deflection is associated with the bending deformation of columns and girders (i.e, the webs of the framed tube) while the flexural component is associated with the axial shortening and lengthening of columns (i.e, the flanges of the framed tube). In a braced tube, the shear component of deflection is associated with the axial deformation of diagonals while the flexural component of deflection is associated with the axial shortening and lengthening of columns.Following beam analogy, if plane surfaces remain plane (i.e, the floor slabs),then axial stresses in the columns of the outer tube, being farther form the neutral axis, will be substantiallylarger than the axial stresses in the inner tube. However, in the tube-in-tube design, when optimized, the axial stresses in the inner ring of columns may be as high, or even higher, than the axial stresses in the outer ring. This seeming anomaly is associated with differences in the shearing component of stiffness between the two systems. This is easiest to under-stand where the inner tube is conceived as a braced (i.e, shear-stiff) tube while the outer tube is conceived as a framed (i.e, shear-flexible) tube.Core Interactive StructuresCore interactive structures are a special case of a tube-in-tube wherein the two tubes are coupled together with some form of three-dimensional space frame. Indeed, the system is used often wherein the shear stiffness of the outer tube is zero. The United States Steel Building, Pittsburgh, illustrates the system very well. Here, the inner tube is a braced frame, the outer tube has no shear stiffness, and the two systems are coupled if they were considered as systems passing in a straight line from the “hat”structure. Note that the exterior columns would be improperly modeled if they were considered as systems passing in a straight line from the “hat”to the foundations; these columns are perhaps 15% stiffer as they follow the elastic curve of the braced core. Note also that the axial forces associated with the lateral forces in the inner columns change from tension to compression over the height of the tube, with the inflection point at about 5/8 of the height of the tube. The outer columns, of course, carry the same axial force under lateral load for the full height of the columns because the columns because the shear stiffness of the system is close to zero.The space structures of outrigger girders or trusses, that connect the inner tube to the outer tube, are located often at several levels in the building. The AT&T headquarters is an example of an astonishing array of interactive elements:1.The structural system is 94 ft (28.6m) wide, 196ft(59.7m) long, and 601ft (183.3m) high.2.Two inner tubes are provided, each 31ft(9.4m) by 40 ft (12.2m), centered 90 ft (27.4m) apart in the long direction of the building.3.The inner tubes are braced in the short direction, but with zero shear stiffness in the long direction.4. A single outer tube is supplied, which encircles the building perimeter.5.The outer tube is a moment-resisting frame, but with zero shear stiffness for the center50ft (15.2m) of each of the long sides.6. A space-truss hat structure is provided at the top of the building.7. A similar space truss is located near the bottom of the building8.The entire assembly is laterally supported at the base on twin steel-plate tubes, because the shear stiffness of the outer tube goes to zero at the base of the building.Cellular structuresA classic example of a cellular structure is the Sears Tower, Chicago, a bundled tube structure of nine separate tubes. While the Sears Tower contains nine nearly identical tubes, the basic structural system has special application for buildings of irregular shape, as the several tubes need not be similar in plan shape, It is not uncommon that some of the individual tubes one of the strengths and one of the weaknesses of the system.This special weakness of this system, particularly in framed tubes, has to do with the concept of differential column shortening. The shortening of a column under load is given by the expression△=ΣfL/EFor buildings of 12 ft (3.66m) floor-to-floor distances and an average compressive stress of 15 ksi (138MPa), the shortening of a column under load is 15 (12)(12)/29,000 or 0.074in (1.9mm) per story. At 50 stories, the column will have shortened to 3.7 in. (94mm) less than its unstressed length. Where one cell of a bundled tube system is, say, 50stories high and an adjacent cell is, say, 100stories high, those columns near the boundary between .the two systems need to have this differential deflection reconciled.Major structural work has been found to be needed at such locations. In at least one building, the Rialto Project, Melbourne, the structural engineer found it necessary to vertically pre-stress the lower height columns so as to reconcile the differential deflections of columns in close proximity with the post-tensioning of the shorter column simulating the weight to be added on to adjacent, higher columns。
网上书店管理系统外文资料翻译中文版
毕业设计(论文)外文资料翻译系 ： 信息工程学院专 业： 计算机科学与技术姓 名： xxxxxx 学 号： xxxxxxxxx外文出处： Thinking.In.Java.4th.Edition附 件： 1.外文资料翻译译文；2.外文原文。
指导教师评语：签名：2011年 月 日(用外文写)附件1：外文资料翻译译文一切都是对象“如果我们说另一种不同的语言，那么我们就会发觉一个有些不同的世界”。
—Ludwig Wittgenstein(1889-1951) “尽管以C++为基础，但Java是一种更纯粹的面向对象程序设计语言”。
无论C++还是Java都属于杂合语言。
但在Java中，设计者觉得这种杂合并不像在C++里那么重要。
杂合语言允许采用多种编程风格；之所以说C++是一种杂合语言，是因为它支持与C语言的向后兼容能力。
由于C++是C的一个超集，所以包含的许多特性都是后者不具备的，这些特性使C++在某些地方显得过于复杂。
Java语言首先便假定了我们只希望进行面向对象的程序设计。
也就是说，正式用它设计之前，必须先将自己的思想转入一个面向对象的世界（除非早已习惯了这个世界的思维方式）。
只有做好这个准备工作，与其他OOP语言相比，才能体会到Java的易学易用。
在本章，我们将探讨Java 程序的基本组件，并体会为什么说Java乃至Java程序内的一切都是对象。
1.1 用句柄操纵对象每种编程语言都有自己的数据处理方式。
有些时候，程序员必须时刻留意准备处理的是什么类型。
您曾利用一些特殊语法直接操作过对象，或处理过一些间接表示的对象吗（C或C++里的指针）？所有这些在Java里都得到了简化，任何东西都可看作对象，。
因此，我们可采用一种统一的语法，任何地方均可照搬不误。
但要注意，尽管一切都“看作”对象，但操纵的标识符实际是指向一个对象的“句柄”（Handle）。
在其他Java参考书里，还可看到有的人将其称作一个“引用”，甚至一个“指针”。
jsp网上商城系统毕业设计答辩外文文献及译文
毕业设计说明书英文文献及中文翻译学生姓名：学号：学院：专业：指导教师：Struts——an open-source MVC implementationBy: Malcolm Davis.Source: Struts--an open-source MVC implementation[J].IBM Systems JournalThis article introduces Struts, a Model-View-Controller implementation that uses servlets and JavaServer Pages (JSP) technology. Struts can help you control change in your Web project and promote specialization. Even if you never implement a system with Struts,you may get some ideas for your future servlets and JSP page implementation.IntroductionKids in grade school put HTML pages on the Internet. However, there is a monumental difference between a grade school page and a professionally developed Web site. The page designer (or HTML developer) must understand colors, the customer, product flow, page layout, browser compatibility, image creation, JavaScript, and more. Putting a great looking site together takes a lot of work, and most Java developers are more interested in creating agreat looking object interface than a user interface. Java Server Pages (JSP) technology provides the glue between the page designer and the Java developer.If you have worked on a large-scale Web application, you understand the term change.Model-View-Controller (MVC) is a design pattern put together to help control change. MVC decouples interface from business logic and data. Struts is an MVC implementation that uses Servlets 2.2 and JSP 1.1 tags, from the J2EE specifications, as part of the implementation. Y ou may never implement a system with Struts, but looking at Struts may give you some ideas on your future Servlets and JSP implementations.Model-View-Controller (MVC)JSP tags solved only part of our problem. We still have issues with validation, flow control, and updating the state of the application. This is where MVC comes to the rescue.MVC helps resolve some of the issues with the single module approach by dividing theproblem into three categories:• ModelThe model contains the core of the application's functionality. The model encapsulates thestate of the application. Sometimes the only functionality it contains is state. It knows nothing about the view or controller.• View• The view provides the presentation of the model. It is the look of the application. The view can access the model getters, but it has no knowledge of the setters. In addition, it knows nothing about the controller. The view should be notified when changes to the model occur. ControllerThe controller reacts to the user input. It creates and sets the model.MVC Model 2The Web brought some unique challenges to software developers, most notably the stateless connection between the client and the server. This stateless behavior made it difficult for the model to notify the view of changes. On the Web, the browser has to re-query the server to discover modification to the state of the application.Another noticeable change is that the view uses different technology for implementation than the model or controller. Of course, we could use Java (or PERL, C/C++ or what ever) code to generate HTML. There are several disadvantages to that approach:• Java programmers should develop services, not HTML.• Changes to layout would require changes to code.• Customers of the service should be able to create pages to meet their specific needs.• The page designer isn't able to have direct involvement in page development.• HTML embedded into code is ugly.For the Web, the classical form of MVC needed to change.MVC Model 2 Struts, an MVC 2 implementation Struts is a set of cooperating classes, servlets, and JSP tags that make up a reusable MVC 2 design. This definition implies that Struts is a framework, rather than a library, but Struts also contains an extensive tag library and utility classes that work independently of the framework.• Client browserAn HTTP request from the client browser creates an event. The Web container will respond with an HTTP response.• ControllerThe Controller receives the request from the browser, and makes the decision where to send the request. With Struts, the Controller is a command design pattern implemented as a servlet. The struts-config.xml file configures the Controller.• Business logicThe business logic updates the state of the model and helps control the flow of the application.With Struts this is done with an Action class as a thin wrapper to the actual business logic.• Model stateThe model represents the state of the application. The business objects update the application state. ActionForm bean represents the Model state at a session or request level, and not at a persistent level. The JSP file reads information from the ActionForm bean using JSP tags.• ViewThe view is simply a JSP file. There is no flow logic, no business logic, and no model information -- just tags. Tags are one of the things that make Struts unique compared to other frameworks like V elocity.Struts detailsDisplayed in Figure 6 is a stripped-down UML diagram of the org.apache.struts.action package and shows the minimal relationships among ActionServlet (Controller), ActionForm (Form State), and Action (Model Wrapper).The ActionServlet classDo you remember the days of function mappings? Y ou would map some input event to a ointer to a function. If you where slick, you would place the configuration information into ale and load the file at run time. Function pointer arrays were the good old days of structured rogramming in C.Life is better now that we have Java technology, XML, J2EE, and all that. The Struts ontroller is a servlet that maps events (an event generally being an HTTP post) to classes. guess what -- the Controller uses a configuration file so you don_t have to hard-code the alues. Life changes, but stays the same.ActionServlet is the Command part of the MVC implementation and is the core of the ramework. ActionServlet (Command) creates and uses Action, an ActionForm, and ctionForward. As mentioned earlier, the struts-config.xml file configures the command. uring the creation of the Web project, Action and ActionForm are extended to solve the pecific problem space. The file struts-config.xml instructs ActionServlet on how to use the xtended classes. There are several advantages to this approach:• The entire logical flow of the application is in a hierarchical text file. This makes itasier to view and understand, especially with large applications.• The page designer does not have to wade through Java code to understand the flow of e application.• The Java developer does not need to recompile code when making flow changes. Command functionality can be added by extending ActionServlet.The ActionForm classActionForm maintains the session state for the Web application. ActionForm is anbstract class that is sub-classed for each input form model. When I say input form model, Im saying ActionForm represents a general concept of data that is set or updated by a HTML form. For instance, you may have a UserActionForm that is set by an HTML Form. The Struts framework will:• Check to see if a UserActionForm exists; if not, it will create an instance of the class.• Struts will set the state of the UserActionForm using corresponding fields from the HttpServletRequest. No more dreadful request.getParameter() calls. For instance, the Struts framework will take fname from request stream and call UserActionForm.setFname().• The Struts framework updates the state of the UserActionForm before passing it to the business wrapper UserAction.• Before passing it to the Action class, Struts will also conduct form state validation by calling the validation() method on UserActionForm. Note: This is not always wise to do. There might be ways of using UserActionForm in other pages or business objects, where the validation might be different. V alidation of the state might be better in the UserAction class.• The UserActionForm can be maintained at a session level.Notes:• The struts-config.xml file controls which HTML form request maps to which ActionForm. • Multiple requests can be mapped UserActionForm.• UserActionForm can be mapped over multiple pages for things such as wizards.The Action classThe Action class is a wrapper around the business logic. The purpose of Action class is to translate the HttpServletRequest to the business logic. To use Action, subclass and overwrite the process() method.The ActionServlet (Command) passes the parameterized classes to ActionForm using the perform() method. Again, no more dreadful request.getParameter() calls. By the time the event gets here, the input form data (or HTML form data) has already been translated out of the request stream and into an ActionForm class.Note: "Think thin" when extending the Action class. The Action class should control the flow and not the logic of the application. By placing the business logic in a separate package or EJB, we allow flexibility and reuse.Another way of thinking about Action class is as the Adapter design pattern. The purpose of the Action is to "Convert the interface of a class into another interface the clients expect. Adapter lets classes work together that couldn_t otherwise because of incompatibility interface" (from Design Patterns - Elements of Reusable OO Software by Gof). The client in this instance is the ActionServlet that knows nothing about our specific business class interface. Therefore, Struts provides a business interface it does understand, Action. By extending the Action, we make our business interface compatible with Struts business interface. (An interesting observation is that Action is a class and not an interface. Action started as an interface and changed into a class over time. Nothing's perfect.)The Error classesThe UML diagram (Figure 6) also included ActionError and ActionErrors. ActionError encapsulates an individual error message. ActionErrors is a container of ActionError classes that the View can access using tags. ActionErrors is Struts way of keeping up with a list of errors.UML diagram of the relationship of the Command (ActionServlet) to the Model (Action) The ActionMapping classAn incoming event is normally in the form of an HTTP request, which the servlet Container turns into an HttpServletRequest. The Controller looks at the incoming event and dispatches the request to an Action class. The struts-config.xml determines what Action class the Controller calls. The struts-config.xml configuration information is translated into a set of ActionMapping, which are put into container of ActionMappings. (If you have not noticed it, classes that end with s are containers) The ActionMapping contains the knowledge of how a specific event maps to specific Actions. The ActionServlet (Command) passes the ActionMapping to the Action class via the perform() method. This allows Action to access the information to control flow.ActionMappingsActionMappings is a collection of ActionMapping objects.Struts pros Use of JSP tag mechanism The tag feature promotes reusable code and abstracts Java code from the JSP file. This feature allows nice integration into JSP-based development tools that allow authoring with tags.• Tag libraryWhy re-invent the wheel, or a tag library? If you cannot find something you need in the library, contribute. In addition, Struts provides a starting point if you are learning JSP tag technology.• Open sourceY ou have all the advantages of open source, such as being able to see the code and having everyone else using the library reviewing the code. Many eyes make for great code review.• Sample MVC implementationStruts offers some insight if you want to create your own MVC implementation.• Manage the problem spaceDivide and conquer is a nice way of solving the problem and making the problem manageable.中北大学2014届毕业设计英文文献译文Struts 一个开源的MVC实现作者：马尔科姆·戴维斯。
基于Struts框架的在线购物系统设计与实现-毕业论文外文文献翻译
附录Design and Implementation of Online Shopping SystemBased on the Struts FrameworkAbstract: Struts is currently a prevalent Web application development framework based on MVC. It has prominence in the open, large and extensible J2EE-based Web application development. Through combining the actual operation process of E-commerce enterprise with the developed requirement, this paper categorically analyses MVC actual implementation technology, analyses and describes the Struts framework. Finally it gives a demonstrative example of Category management module, which explains in detail technical implementation to E-Online Shopping System based Struts framework and presents function description of correlative constitution section. By practical application, it shows the system improves platform’s security and stability.1.INTRODUCTION With the development of internet technology, network service plays an increasingly important role in people’s daily life. People expect that they can get the satisfied service or goods in a convenient way and in very short time. Hence, the electronic commerce system at this moment plays a very critical part. On one hand, it is very convenient for people to look at the goods online and it also shortens people’s time period for shopping. On the other hand, for the enterprise, it shortens intermediate links, and it can reduce the geographic restrictions and decreases the merchandise inventory pressure, therefore, it can greatly save business operating cost. However, this system also faces problems that the form of ecommerce is very changeable; as a result, the inner structural can be complex and varied. Then, how to deal with that? Based on the development model of Struts [1], it can effectively deal with these varied requirements. It completely changes the previous traditional J2EE development mode that is the coupling of display, control and business which makes software reuse difficult, cooperation and division of the team difficult, development time long and cost high. Therefore, this article based on the integrated development environment of MyEclipse and using MySQL as the backend database, the MVC OF Struts designed a crossplatform, extensible B/S electronic commerce system. This system is runs on the internet where users can browse the goods and buy them freely, they can even choose the payment method. Thissystem innovates the traditional shopping, which can make people buy what they want at home. The computational results of the system states that the system operates well and that its security and expandability are also high.2. INTRODUCTION OF STRUTSStruts [2] is an exceptional MVC frame. It combines features of Servelet and JSP and inherits various features of MVC, and it changes and extends according to the J2EE’S characteristic. There are three main parts of Struts: The controller is responsible for the Action that is processed by a specific operation; JSP page (view); that applies business logic packaging. The master controller of Struts (ActionServlet) receives the request from client and according to the allocated route of the system (Struts-config. xml) HTTP requests the objects to the other Action. In these action objects, it will make business operation and after operation, it will transfer from ActionServlet to JSP, and the processed results will be returned to clients. The packaging data through Action Form can be mutual used in Model and View. The working principle of Struts is showing in Fig. (1).3. THE ANALYSIS AND DESIGN OF ELECTRONIC COMMERCE SYSTEM3.1. The Demand Analisis and Case Design of the SystemThe aim of this electronic commerce system is realizedby the construction of this system. The most important thing is to attract customers to know the main product of the website, for instance an e-commerce website which mainly sells children’s shoes or children’s clothes and so on. For transactions, it has to build B to C sales model which are consumer facing, and it has to realize the integration of products, online payment, and logistic services. Moreover, it needs to make a customized search engine and data analysis system to find the potential and key customers. It also needs to analyze the market trend to build a scientific decision system [3].Therefore, the system requirement description is as following:electronic commerce system includes two subsystems; one is for the front desk sale and display. When clients log in, they can freely look over and search their favorite products (for example: off-price goods, new arrivals). Meanwhile, customers can put the products they like in a “shopping cart” and which they can later modify, (add or delete), then they can submit the order form to service counter to pay. The other subsystem is in the backstage management system. Merchants canmanage the relevant information published, typed-in and alteration. It can also manage the search of the order and manage the registered clients of on-line sales system. Meanwhile, it can analyze consumer behavior, which can provide evidence for better scientific decision for the corporation. Fig. (2) is the use case of this eshopping system.3.2. The E-R Design of Online Shopping SystemPowerDesigner [3, 4] is the CASE tool set of Sybase, it can make data flowchart, concept data model, physical data model and can also control the generated data model. This system uses PowerDesigner to set up data and induct E-R model to MySQL, and generate physical data sheets. Therefore, according to the above description, combined with the need and description of 2.1, the design of E-R can be finished. However, there are numerous system database sheets, only some important database sheets are listed here. The relationship among them will be explained here. The specific design of E-R is in (Fig. 3).3.3. Structure Design of Online Shopping System In this article, the system uses Struts based on MVC, which makes great convenience for the developer to make modularization exploitation. It greatly increased code’s reusability and maintainability, and it also takes the crossplatform of this system into consideration. Fig. (4) shows the design model of this online shopping system.① View is responsible for the systems visual theme and realization, and View is composed by JSP and Action Form bean. JSP contains static HTML, CSS, Div and Struts label database. Action Form bean is responsible for the data transmission between JSP and Model.① Controller is composed by Action Servlet. Its task are:first, it has to finish all the initialized work, that is to read the information in Struts-config. xml and intercept the matching map of URL by Action Servlet; second, according to the intercepting request initiate Action Form bean; last, to find the corresponding Action subclass in Action Mapping: if there are no corresponding Action, then transmit the request to JSP; if there are corresponding Action, then initiate ActionForm bean and use HTTP to fill the data and its property, and save these results in request for other Action or JSP to use.① in the Model [4], the specific business logic operationis finished by Action. In order to reduce the coupling relationshipbetween business logic and database manipulation,the DAO is used to separate business logic and data access.It can increase the flexibility and maintainability of systemfor that DAO model Action [5] and provides abstract data access port. Therefore, Model doesn’t need to care about selection, insertion, deletion, and updating, hence, it avoids mixed call statement in service code, so the business practice can be much clearer and on the other hand, because of the separation of data access port and data access, which can make the developer concentrate on business logic code rather than data’s selection, insertion, deletion, and check.4. THE IMPLEMENTATION OF ELECTRONIC COMMERCE SYSTEM BASED ON STRUTSStruts applied MVC design model, which separated page display, data control and business operation makes the exploitation and maintenance more convenient and reasonable. For online shopping electronic commerce system [6, 7], the construction methods of all modules are basically same. Next set commodity management module [8] as an example to explain the develop process of online shopping electronic commerce system based on Struts.4.1. Design of View ModuleThe main function of View is to display data to users, and in this system, View is composed by Struts, Div, CSS, HTML, JSP and formbean. The advantage of this is that it can avoid the coupling of Java source code and HTML statement in JSP, and it also can enhance reusability of View. It can simplify the page development, and is good for test and maintenance.. First, use Dreamweaver to establish JSP: 1), add and modify Category page addCategory.jsp；2), delete some category page delCategory.jsp；3), search category page searchCategory.jsp; 4), maintain category information page categoryInfoMaint.jsp. It can display all the products information and it can add, delete, modify and edit the selected products. Lastly, to define and describe the CategoryFormbean. It inherited the org.apache.struts.action.ActionForm in Struts. The main function of this class is to collect and display data. The goal of data collection is to provide a business model for Model module. And display data is to show the conducted data to users. The specific steps are:First: introduce ActionForm to Struts;Second. write down the specific codes as followingpublic class MerForm extends ValidatorForm { // 1.define products manufacturer\ private String manufacturer; // 2. define products price private Double sprice;// 3.define products discount private Integer special; …………… //omit other property，meanwhile，//generate corresponding Getter/Setter }4.2. Implementation and Design of ControllerController is the core of all operations, whenever, ActionServlet of controller deals with all the things, it decides all the flow relation of every module in this system. Then how to finish these works? Firstly, it is necessary to register ActionServlet and Struts-config.xml in Web.xml. Web.xml is the place where Controller’s modules ActionServlet and struts-config.xml are described and among these, *.do stands for requesting mapping, the specific allocations are:<servlet><servlet-name>action</servlet-name><servlet-class>org.apache.struts.action.ActionServlet</servlet-class><init-param><param-name>config</param-name><param-value>/WEB-INF/struts-config.xml</param-value></init-param></servlet><servlet-mapping><servlet-name>action</servlet-name><url-pattern>*.do</url-pattern></servlet-mapping><servlet>基于Struts框架的在线购物系统设计与实现摘要：Struts目前是一个基于MVC的流行的Web应用开发框架。
基于.NET 的网络商城的设计外文文献翻译购物网站2014年译文3450字
文献出处: Sabato G, Wilson N. Design and Implementation of Status Authentication System Based On [J]. The Journal of Credit Risk, 2014, 6(2): 95-127.（声明：本译文归百度文库所有，完整译文请到百度文库。
）原文Design and Implementation of Status Authentication System Based On Sabato G, Wilson N.AbstractWith the rapid development of internet technologies, as a newly developed trading operation mode, more and more emphasis are placed on electronic trading. Status authentication system is an essential component of electronic trading, which gives more conveniences and fastness to customers who are in favor of internet shopping. This thesis deals with how to construct status authentication system with newly developed internet technologies, improve the trading capabilities of internet trading platform and give a full play of the information of the internet. The programming of status authentication system and user interface are constructed with technology. Back-end database is constructed with SQL SERVER 2008. A secure access to status authentication system database is implicated with . Demand-analysis, business procedure, systemic structure and database mode of status authentication system are analyzed and designed with three tire structure. The advantages of and three tire structure are discussed, and a status authentication system is constructed.Key words: Status authentication system; ; Three tire structure; Database1 The Summary of online shopping1.1 Online shopping definitionOnline mall is similar to ordinary mall, is to use various means of electronic commerce from buy to sell deal process virtual store, so as to reduce the intermediate links, eliminate operating costs and agency in the middle of the price difference, and increase market circulation, with a huge space for development. As far as possible,also the consumer, drive the rapid development of the company.1.2 Construction of online mallSuch as using a special platform. Advantage is low investment cost, high efficiency. Enterprises only need to register and submit relevant information you can use the establishment of the online platform to complete you’re online shopping. For lack of funds and technical support of corporate entrepreneurship can make full use of the mall. Defect is unable to effectively control space, domain names, procedures, and other important resources. In the long run can produce adverse effect to the enterprise network sales.Shopping mall and relative platform independent relatively complex network mall, invest more. But the effect is better. Enterprises can choose the programming language, ASP language, have a lower development costs and a large market coverage, but the safety problem is outstanding. The PHP language is characterized by convenience, flexible, very suitable for program development. The most commonly used programming language mainstream products. Weakness is not suitable for big projects and secondary development. In the high-end application ability is limited. Have an ECSHOP, SHOPEX, etc.JA V A language to build online shopping system in the current products on the market is very little. Have superior language features, built by the online shopping system in safety, functional expansibility and secondary development has very excellent performance. But high development cost, the difficulty is big. Usually only use big business, government, etc.2 Network mall development process2.1 The requirements analysisUnderstand customer needs, including company introduction, item description, basic functional requirements, business process, etc.2.2 Construction scheme design online mallAccording to the demand analysis, according to the actual situation of enterprises, choose suitable for the enterprise network mall construction plan. Such as web hosting service or buy your own server.2.3 Host the DNS queryDomain name is part of the image of enterprise. Easy to remember and highlight the characteristics of enterprise name easy to improve enterprise brand image.2.4 Interface design, manufacture, and modification.The code a good interface design to the information release at the same time to the company's business philosophy and purpose accurate interpretation. And can attract the customers. At the same time for architecture design, coding. To provide customers with convenient browsing navigation, suitable business function modules, such as information release system, product display, shopping cart system, etc. To suit demand of the enterprise, this step needs to actively cooperate with customers.2.5 debugging functionDebug the whole system function, to provide customer tests and listen to customer comments, a change in a timely manner.2.6 ReleaseAfter through customer audit through online shopping system, can be uploaded to the site to run the server, the formal release. And timely after-sale technical support and maintenance.3 The key technologies of online shopping3.1 Definition: is Microsoft for XML Web services platform. The software will use a way of unified, personalized information, equipment and personnel closely linked together.XML Web services allow applications regardless of what kind of operating system, device, or adopted by a programming language, can through the Internet to communicate and share platform provides create XML Web services at the same time meet the needs of the integrate these services together. Specifically, platform includes development tools, XML WEB services, the client and server. experience.3.2 XML Web servicesThe basis of XML Web services is programming model. The core of technology. Is to other Application data and services application logic unit. Application using the standard Web protocol and data format (such as HTTP, XMLand SOAP) access to the XML Web services, has nothing to do with each XML Web services is implemented. Through XML Web services, customers and users from one service to another, from one application, or even from one environment to another environment will be very easy. Allows the user plane degree computer world will become simpler.3.3. framework Framework (.net Framework) is developed by Microsoft for more than a language component development and execution environment, it provides a unified cross-language programming environment. The purpose of framework is convenient for developers to more easily build Web applications and Web services, making the Internet between various applications, Can use Web services to communicate. Is mainly composed of the following two: Common Language Runtime (CLR: Common Language Runtime) CLR manages memory, thread execution, code safety verification, compilation, and other system services. CLI is a set of operation environment, including general system, the middle of the base class library has nothing to do with the machine code, called the common intermediate language (CLI).The CLR is confirm password in accordance with the CLI platform operation. The CLR in CLI instruction before implementation compiled into the original mechanical code in a timely manner.3.4 The predecessor of the ASP technology, is a server-side scripting technology developed by Microsoft, but to let the script embedded in a web page by intent web server implementation. includes all kinds of needed services to facilitate Web application developers to generate the enterprise level The program. Provides developers with a new kind of programming structure and model of the generated application has better Scalability and stability, and better security protection, is a unified model for Web application development.Developers can gradually add in the existing ASP application capabilities, to enhance and improve its function at any time. All applications can be applied to the whole. Framework, compared with ASP, application development can use any. NET compatible languages, such as c # and JScript. NET.., Visual , etc. And instant interpreter speed is much quicker than is a kind of natural layered architecture, the SQL Server, Oracle, consistent access to all sorts of data and public data sources such as, and through the data provider is a Dataset and. NET Frame Work of two core components complete decomposition data access tasks. For large-scale complicated information system development and maintenance.4 Three layer structure4.1 C/S structureC/S (Client/Server), namely the Client/Server structure is a kind of system architecture, currently most application software system based on C/S structure, in the form of this structure can make full use of the advantages of both ends hardware environment, make reasonable tasks assigned to the Client and the Server side, reduce the communication overhead of the system. In this structure, the server is the core of the network, the customer is the foundation of the network, the client server to obtain the required network resources, the server must provide for the customer network resources.C/S structure can give full play to the Client's ability to process, make a lot of work on the Client side processing and then submitted to the server, business processing logic is mainly, on the Client side and could be called Fat Client (Fat Client) structure. So the client speed accordingly.4.2 B/S structureB/S (Browser/Server) structure namely the Browser and Server structure. Is a variable of C/S structure And the improved structure, with the rapid development of Internet technology and the rise. Under B/S structure, the application server implementation of professional software applications, and Web server implementation customer performance, because the client through the browser to make the business process, greatly reduce the cost of system maintenance and upgrade and workload, simplify the client computer load at the same time. Is the first choice for today's application software architecture.B/S system structure, the client through the browser to a Web server database access request, a Web server to the client request into SQL syntax, and to the database server, database server get request, verify its legitimacy, and carry on data processing, processing results back to the Web server, Web server will get all the results into HTML document form, sent to the client browser, in the form of Web page display to the customer.4.3 Three layer structureThree layer structure (3 - tier application) refers to the entire business application is divided into: the presentation layer (UI), business logic layer (BLL), data access layer (DAL).In software architecture design, and a hierarchical structure is the most common, also is one of the most important kind of structure. Is on the basis of the client and server two layer structure to join the middle layer, application service layer, namely between multiple applications share the business logic layer of three layer structure, the formation of "thin client - fat middle tier - thin server" calculation model.Microsoft's recommended layered structure. Three layer architecture and not physical three layer, refers to the three logical layer, regardless of the three layer is placed in a machine or machine, the C/S architecture and B/S three layer structure can be used in the architecture. In the three-tier architecture, the client usually do not directly interact with the database, the business rules, data access work and the check of legitimacy on the middle business logic layer, the middle layer is responsible for the number According to the library to interact.4.3.1 Presentation layer (UI)Used for processing the human-computer interaction, is responsible for handling user requests. Popular speak be presented to the user interface, and is responsible for the display data and receive user input data. Main responsibility is to provide users with information and translate user's instruction and passed to the middle business logic layer, the. NET in the asp page. User’s closest ideal should not include the business processing system, the logic code only related to the interface elements.4.3.2 Business Logic Layer, Business Logic Layer) referred to as "the BLLThe business logic layer is three layer system structure embodies the core valuesin the section. Used for data processing business logic. In the data access layer and presentation layer, plays an essential role in data exchange. Because the three layers structure is weak coupling between the structure, the dependence between layer and layer is downward, change the design of the upper does not have any effect for the called the bottom. Therefore, the design of the business logic layer architecture scalability is particularly important. According to the different needs of application system, can be divided into different modules.4.3.3 Data access layer (DAL)The data access layer directly responsible for database operation, data add, delete, modify, query and other operations. And can be referred to as persistence layer, can access the database system, binary files, text documents, and XML documents, framework using complete access to the database, access to the function of the different types of data sources is encapsulated into different classes are stored. NET Class Library, can be based on. application calls.译文基于NET 的网络商城的设计作者：萨巴托；威尔逊.摘要随着互联网技术的快速发展，作为一种新兴的商务运作模式，电子商务正越来越受到人们的重视。
网上商城购物系统毕业设计论文
网上商城购物系统毕业设计论文分类号郑州电力高等专科学校毕业设计（论文）题目Market网上商城购物系统并列英文题Market Online Sales System系部电子信息系专业计算机应用技术姓名李蓓蓓班级计算机0801指导教师张慧丽职称讲师论文报告提交日期2011年6月8日郑州电力高等专科学校摘要随着21世纪的到来，信息化时代已经向我们走来，这个时代的最重要的标志就是计算机的广泛应用。
如今社会上计算机应用已经达到非常普及的程度，随处都可以见到计算机的身影。
我们也熟悉了在社会各处遇见它们的环境，家庭娱乐，学校的机房，金融场所，以及到处可见的网吧，计算机如水银般无孔不入。
近年来，随着网络技术和Internet的迅速发展，基于Browser/Server结构的Web应用，因其具有易用性、通用性和良好的可扩展性等优点而发展迅速，正逐渐成为实现企业管理信息系统的主流技术。
而开发一个Web应用系统是一项浩大的工程，要求设计者能够提出合理的系统架构。
合理的系统架构可以减少开发及维护系统所用的资源，提升工作效率。
因此，在Web企业级应用系统开发过程中，设计模式的选定和应用系统架构的设计是一个重要环节。
本系统运用平时所学一些基本技术，自定义控件，技术，实现了market网上购物商城的前台页面浏览，用户注册登录，用户下订单购物，购物车，后台的用户、物流、订单等管理的功能。
达到了毕业设计的要求，同时锻炼了自己的动手能力。
AbstractWith the advent of the 21st century, information age has come to us, this era is the most important symbol of the extensive application of computers. Now the community has reached a very popular computer application degree, the computer can be seen everywhere on the scene.We are also familiar encounter them everywhere in the social environment, family entertainment, school room, financial sites, and Internet cafes are everywhere, as all-pervasive computer such asmercury.In recent years, with the network technology and the rapid development of Internet-based Browser / Server structure of Web applications, because of its ease of use, versatility and good scalability advantages of the rapid development of the enterprise is becoming a management information mainstream system. The development of a Web application system is a massive undertaking, requiring designers to a reasonable system architecture. Reasonable system architecture can reduce development and maintenance of the system resources used to enhance work efficiency. Therefore, in the Web enterprise application development, design patterns and application of selected systemarchitecture design is an important part.The system usually learned using some basic techniques , custom controls, technology to realize the future of online shopping mall market page views, user registration, login, user order shopping, shopping cart, the background of the user, the logistics , order management functions. Meet the design requirements for graduation,while exercising their practical ability目录第一章我国电子商务的现状和发展前景.............................. - 1 - 第二章系统需求分析........................................................ - 5 -2.1 系统功能需求........................................ - 5 -2.2 系统设计思路........................................ - 6 -2.2.1 功能设计 ................................... - 6 -2.2.2 结构设计 ................................... - 7 -第三章数据库设计............................................................ - 9 -3.1 数据库各表关系图............................... - 9 -3.2 部分表字段设计及注释..................... - 9 -第四章系统实现主要技术介绍........................................ - 20 -4.1 内置对象............................. - 20 -4.2 自定义用户控件 .............. - 23 -4.3 ................................................. - 25 -第五章系统部分功能展示及其实现代码........................... - 30 -5.1 部分界面展现..................................... - 30 -5.2 新用户注册和用户登陆.................. - 33 -5.3 后台管理功能..................................... - 37 -5.4 随机产生验证码代码....................... - 40 -5.5 数据访问核心类部分代码............. - 40 -第六章总结................................................................... - 44 - 参考文献........................................................................ - 45 - 附录 .............................................................................. - 47 -第一章我国电子商务的现状和发展前景电子商务作为现代服务业中的重要产业，有“朝阳产业、绿色产业”之称，具有“三高”、“三新”的特点。
超市管理系统设计中英文对照外文翻译文献
超市管理系统设计中英文对照外文翻译文献(文档含英文原文和中文翻译)基于Java技术的Web应用设计模型的比较研究摘要Servlet技术在建立可扩展性Web应用中是被应用最广泛的技术。
在运用JAVA技术开发Web应用中有四种模型，分别是：Model 1、Model 2、Struts和JavaServer Faces （JSF）。
Model 1使用一连串的JSP页面；Model 2采用了模型－视图－控制器（MVC）模式；Struts是一个采用了Model 2设计模型的框架；JSF是一种支持ready-to-use组件来进行快速Web应用开发的新技术。
Model 1对于中等和大型的应用来说很难维护，所以不推荐使用。
本文通过利用Model 2、Struts和JSF这三种模型分别构建三个不同1版本的在线商店应用程序，来比较和评价这三种模型在应用程序开发和性能上的差异。
1.绪论当今，Web应用是一种展现动态内容的最普遍的方式。
构建Web应用有许多种方法，其中最流行的是Servlet技术。
这种技术的流行是因为它比CGI、PHP等其他技术更具优越性。
然而Servlet对于开发来说还是麻烦的，因为它在传送HTML标签时需要程序员将他们组合成为一个字符串对象，再将这个对象传给浏览器。
同样的，对于输出的一个很小的改动也要求Servlet被重新编译。
基于这个原因，SUN公司发明了JavaServer Pages（JSP）技术。
JSP允许HTML标签和Java代码混合在一起，每个页面将被转化为一个Servlet，一个JSP就是一个Servlet，而且编译将在JSP页面第一次被请求时自动进行，改变输出也不需要重新编译。
另外，通过使用JavaBean和定制标签库，JSP能够将表示与业务逻辑相分离。
现今，基于JAVA的Web应用开发标准是将servlets与JSP结合在一起。
随后，出现了许多种设计模型用来构建servlet/JSP应用：Model 1、Model 2、Struts]和JavaServer Faces （JSF）。
网上商城系统毕业设计外文翻译
毕业设计说明书英文文献及中文翻译班级：学号：姓名：学院：专业：指导教师：1 Struts Framework Based on MVCIn the traditional Web application, Java Server Pages(JSP) pages are responsible for handling all things, for example, receiving requests, executing business logics, choosingthe next page. These complicated things may lead to chaos of JSP pages’ codes and be harmful for the extension and maintenance of pages. The Model-View-Controller (MVC) mode separates the programming codes into three different areas, which has solved the above problem. MVC can realize J2EE application system's stratification and the loose coupling of three layers or multilayer, and it is a realization way of orienting dynamic content. The MVC mode divides application into three core components of Model, View and Controller.Struts is a realization of MVC. It is an open source Web application framework and uses Servlet and JSP marks that belong to the J2EE norm as a part of the realization. Struts inherits MVC characteristics and realizes some corresponding changes and extension according to J2EE traits. Struts separates Java codes of JSP by Java Bean and Action class to be the MVC mode, transmits data among the three partitions of Model, View and Controller, demonstrates the connection between various classes and JSP pages by configuration files finally and it intends to realize the separation of presentation layer, business layer and data layer. The Struts structure is shown in Figure 1.The Model contains the business logic that exchanges data with a persistence layer. The View is in charge of producing what is directly visible to the user, . web pages. The Controller is the layer that receives requests from clients, determines what business logic takes place and where to go next. In the Struts framework, the Model uses Java classes for the business logic. The View can be implemented with JSP and the Tag lib of Struts. The Controller is a J2EE component known as Servlet, more specifically an ActionServlet object, which determines what or when logic gets executed and where the control should get directed.2 Hibernate Framework Based on ORMWorking with both the object-oriented software and the relational database is a complicated task with Java Database Connectivity (JDBC) because there is mismatch between how data is represented in objects versus relational database. So with JDBC, developers have to write pure the Structured Query Languag (SQL) statements to map an object model's data representation to a relational data model and its corresponding database schema.Introduction of HibernateHibernate is a flexible and powerful Object-Relational Mapping (ORM) solution to map Java classes to database tables. It is a powerful, high performance object-relational persistence and query service. Hibernate allows developers to express queries in its own portable SQL extension (Hibernate Query Language (HQL))[3], as well as in native SQL, or with an object-oriented criteria and example Application Programming Interface(API). Hibernate itself takes care of this mapping using XML files so developers don’t need to write code for this.Hibernate is an open source and it is free to use for both development and production deployments, which is a bridge between Java application and relational database and takes charge of mapping between Java objects and relational data. The inside of Hibernate packs the operation of accessing database by JDBC, which provides API of object-oriented database access to upper layer application. So developers can use the object programming thought to operate database sufficiently, caring for the bottom database structure unnecessarily.Hibernate relieves the developer from 95 percent of common data persistence related programming tasks, compared to manual coding with SQL and the JDBC API[4]. And it can integrate various Web server or application server, and nearly support all popular databases server.Principle of HibernateAs shown in figure , Hibernate lies in the middle layer that is between applicationand database .In the provided persistent service, Hibernate maps class to rows of datasheet by properties and mapping files of class itself. Application interacts with database by Persitstent Object (PO) to handle data directly.ApplicationPersistent ObjectsHibernateHibernate.properties XML.MappingDatabaseFigure Hibernate systematic structure3 The Integration of Struts and HibernateIn the open source frameworks, for the presentation part, Tapestry has the powerful and natural combination of pages, its document is too conceptional to benefit programming. And its learning curve was too steep and so on. For the logic part, Spring has a good integration function, but there is a lack of public controller. And EJB depends on the EJB containers, at the same time, it is realized complicatedly. While Struts has been applied extensively because of its advantages.At present, most of systems apply the relational databases mainly, while Java is an object-oriented language essentially. In Model part of Struts framework application, using SQL and JDBC to operate databases when storing and fetching objects reduces programming efficiency and the systematic maintainability. Traditional J2EE-based application applies heavyweight framework based on EJB that adapts to the large enterprise development, while development and debugging by EJB container need to consume a plenty of time and high price. EJB3 improves the disadvantages of original EJB, but its application is not mature yet.Hibernate can substitute Container-Managed Persistence (CMP) to accomplish heavy responsibility of permanence in J2EE framework of applying a word, Hibernate can resolve the difficulties coming from using traditional CMP, JDBC and Data Access Object(DAO) in a technological development. For reducing the coupling of code and raising systematic development efficiency, this paper suggests J2EE application development tactics based on Struts and Hibernate.The Struts design shows the MVC framework sufficiently, which all control flows need a configuration file to manage, and which is convenient to maintain. The integration of Struts and Hibernate is that Hibernate solves the model layer of Struts, which makes developers operate Java objects instead of database. The integration shows the object-oriented thought sufficiently and solves some problems of the database operation in traditional J2EE well.Flow of FrameworkThe flow of integration framework based on Struts and Hibernate is shown in Figure 3. At first, users send Http requests by Browser, then Http requests are accepted by ActionServlet of the control component in business layer, then gave to RequestProcessor which gets corresponding Action from ActionMapping by request URL[3]. Besides, ActionForm packs JSP pages, which can make a checking to data of datasheet if it is needed, send back ActionErrors to visual pages if there are mistakes and transfer the data of pages to Action if it passes validation.Request Processor transfers the “execute” method of Action and the method transfers the business logic module. Hibernate accomplishes interaction of databases and JavaBean. The operation of processing business logic interacts with database by data permanence layer and field object layer. The “execute” method of Action will return ActionForward objects that are accepted by ActionServlet after executing.Systematic Structure of the Integration FrameworkThe EIS layer of the multi-layer J2EE systematic structure can be partitioned into the data permanence layer and the data resource layer. It means a system can be divided into five layers as a whole.Client Layer: This layer runs in the Browser of users’ machin es and handles interaction with users, transmits and shows messages to users. J2EE platform supports different type users including HTML users, Java Applets, Java application, etc.Presentation Layer: This layer works in J2EE Web container, produces the systematic representation logic, handles users’ requests and makes the responses. The entire Web is built on Struts framework, in which the View component is composed of JSP/HTML pages whose data is expressed by ActionForm Bean, the Controller component is composed of ActionServlet united and Action Classes, and the Model component is realized by business logic Logic Layer: This layer accomplishes the required business of system, provides the required business method to presentation layer. It can receive data from client programs and save them to the storage equipment after proper disposal, read data from the data storage equipment, then send them out to client programs.1 基于MVC的Struts框架在传统的Web应用程序，Java服务器页面（JSP）页面负责处理所有的事情，例如，接收请求，执行业务逻辑，选择下一个页面。
网络购物行为分析中英文对照外文翻译文献
网络购物行为分析中英文对照外文翻译文献(文档含英文原文和中文翻译)The network shopping behavior analysisAbstractThe thesis analyzes the current situation of online shopping in China. It offers a further analysis to its advantages, and disadvantages, gives solutions to the problems, gives a deep analysis of the benefits it brings to both producer and consumer and make people be more confident with the promising prospect of online shopping in china. It systematically illustrates the exiting problems of online shopping in china from a different view attached with exactly figures and vivid examples. At the same time, it gives relevant resolutions to the existing problems. It includes personal information safety, online payment, logistics, and a series of relevant law problems. The thesis chooses the authentic English materials which gave me a valuable guide and instruction; meanwhile, it has also been attached with specific figures so that people can understand them easily.Key words: Online shopping marketing research logistics service online payment distribution1. IntroductionWith the rapid development of Internet, online shopping has gradually entered the lives of ordinary people. And with the rapid development of Internet in China, more and more Chinese begin to favor online shopping for its convenience, quick delivery and benefit. According to the latest statistics released by China Internet Network Information Centre (CNNIC), the number of netizen in China has hit 87 million, and 7.3 percent said they had the experience of online shopping. Meanwhile, the statistics also showed that 58 percent of netizen in China would try the online shopping next year.Online shopping, in a narrow sense, can be understood as getting online information and inking online deals. In a broad sense, however, once one section of shopping is finished online, it can be regarded as online shopping. In that way, traditional or burgeoning online enterprises may seek a combination, mingling two modes' advantages.The percentage of online shopping in China is growing year on year. According to the experts' prediction, the total volume of China's online shopping is expected to reach 28 billion Yuan in years to come.2. Advantages of the online shopping2.1 Benefits to consumers2.1.1 Saving time and convenienceOnline shopping is becoming popularity ,not only because the great convenience ,but also you can find a shop with so many goods that you may favor. And it also saves your a great some of time ! You can just typing-in the key word of what you want to find , the target will appear on the screen quickly .The online shopping industry has grown a lot in the recent year, and millions of people prefer to buy from the large variety from the online stores than to waste time at the long lines from supermarkets. Furthermore, the online shopping industry keeps growing, and more and more products are made available online. You can now find everything from CD to fruits and books, and you can purchase the items you want just with a few clicks.After you've done some online shopping you'll see how easy it is and you'll quickly get used to it. Soon you will know what the best shopping websites are and you will be able to buy the things you need very easy and fast, saving a lot of time and trouble. Online shopping is the most practical, economical and fun method of shopping, that is perfect for everyone."Online payment provides a more convenient way for consumers who don't carry cash."Beijing resident Ding Xin(丁欣)in her late 20s bought a bottle of perfume online last month."I often browse the websites of online shops because the goods have more attractive prices," she said.With the fast development of the society, the rhythm of life is accelerated progressively, the traffic jam changes crowd gradually, people are unwilling to spend much time to go shopping, and network marketing is accepted by consumers for it’s convenient characteristic Consumers can select the goods at home without going out , with the help of strong database, the shopping course is simplified to an action of " click ", consumers can finish doing shopping at any time, with the appointment of a place to deliver goods.About 41.8 per cent of all online shopping payments are handled over the Internet, the survey shows. And 43.2 per cent of online shopping payments are handled via money remittance personnel and 34.7 per cent are completed in person, the survey shows.2.1.2 Customization and personalizationOnline shopping can provide mass customization and personalization with moderate cost. Point cast, for example, delivers customized news and financial data toevery single customer based on his or her specific needs. displays specific recommendations based on the customer’s previous purchases. These kinds of services are very expensive in traditional marketing .The web providing online shopping can move from providing general products or services customized to a customer’s needs, tastes, and preferences.2.1.3 Access to more informationOne important consumer benefit associated with marketing on the web is the access to greater amounts of dynamic information to support queries for consumer decision-making. Furthermore, the interactive nature of the web and the hypertext environment allow deep, non-liner searches initiated and controlled by customers. Hence marketing communication on the web is more consumer-driven than those provided by traditional media. In addition, recreational uses of the medium manifested in the form of non-directed search behavior are such an important benefit to consumers that they are intrinsically motivated to use the medium.2.1.4 Easier market research and comparisonThe ability of the web to access, analyze and control large quantities of specialized data can enable comparison shopping and spread the process of finding line which may stimulate purchase. There is also the potential of wider availability of hard-to- find products and wider selection of items due to the width and efficiency of the channel.2.2 Benefits to the firms2.2.1 Lower costs and pricesIncreased competition in procurement as more suppliers are able to compete in an electronically open market place causes a greater competition, which naturallylowers prices and costs. This increase in competition leads to better quality and variety of goods through expanded markets and the ability to produce customized goods. One of the reasons to lower cost is that they haven’t traditional warehouses and retail shops in the retailing business of the great majority in the commercial city online. Generally speaking, the network does not have a traditional retail channel to sell. For example like , the online retailing bookshop with no stock of books, places an order with bookseller and sends to consumers directly which aims to realize real " zero stock " to lower cost.2.2.2 Better distributionFirm benefits arise partly from the use of the web as a distribution channel. First, the web potentially offers certain classes of providers and opportunity of participating in a market in which distribution costs or cost-of-sales shrink to zero. This is most likely for product categories. For example, digital products can be delivered immediately and hence such businesses may encounter massive disintermediation or even the eventually elimination of middleman. Moreover buyers and sellers can access and contact each other directly, potentially eliminating some of the marketing cost and constraints imposed by such interactions in the terrestrial world. This may also have the effect of shrinking the channel and making distribution much more efficient (mainly due to reduced overhead costs through such outcomes as uniformity, automation and large-scale integration of management processes). Time to complete business transaction may be reduced as well, translating into additional efficiencies for the firm. However, such potential efficiencies must be tempered with market realities.2.2.3 Marketing communicationWeb sites are available on demand to consumers 24 hours a day. The interactive nature of the medium can be used by marketers to hold the attention of the consumer by engaging the consumer in an asynchronous “dialogue” that occurs at both parties’ convenience. This capability of the medium offers unprecedented opportunities to tailor communications precisely to individual customers, allowing individual consumers to request as much information as desired.Further, it allows the marketer to obtain relevant information from customers for the purpose of serving them more effectively in the future. The simplestimplementations involve engaging customers through the use of the E-mail buttons located strategically on the site. More sophisticated implementations may involve fill-out forms and other incentives designed to engage customers in ongoing relationships with the firm. The objective of such continuous relationship building is dual- pronged: to give consumers information about the firm and its offers and to receive information from consumers about their needs with respect to such offerings.3. Limitations of online shoppingDespite the prospects is optimistic, a shortage in types of online payment, lagging logistics and lack of relevant laws are just some of the problems which continue to hinder the development of online shopping.3.1 Online paymentOnline payment plays a key role in e-commerce, and a safe, convenient, and efficient online payment system is essential. However, safety authentication, one of the main factors of online payment system, is inadequate in China.Online shopping is information technology ---based business , which makes the trade between consumers and firms online through the internet . The two sides from time and space limitation , thus not only greatly expand its network of consumers and firms online on the opportunities of commodities trading , but also greatly reduce the cost of commodities trading. However there are still a number of factors influence the development of online shopping in China .1.Security .Security issues is the biggest problem that have hindered the development of online shopping . Although the existing methods Alipay online shopping played a good role, but it is only a substitute in the period of electronic payments . It has obvious defects on security of electronic payments and real-time of financial flows , which can not fully meet the financial electronic requirements.2.Taxation .With the rapid development of online shopping and online shopping as paperless, no site-based, intangible, unbounded, virtual and electronic payments, etc. to make the work difficult to carry out effectively, there has been a series of loopholesin tax administration led to the draining away of tax chargeable caused enormous economic losses to the state. As for the traditional legal system and tax collection management , it is difficult to resolve tax and related issues online shopping . However there is no clear policy for online shopping recently in China .3.Protection of the interests of consumers .In online shopping activities, there is a shortage of face to face communication , the transaction has a large uncertainty. The buyer gets the goods information through the network. Some unscrupulous Internet companies know consumers can not see the real goods and they can’t see each other , in order to reap huge profits, manufacturing counterfeit products. Therefore, the public generally feel online shopping is not intuitive, secure, they don’t believe the network's "rhetoric". The result is caused to the development of online shopping has a large obstacle . Online shopping is also a vacuum of after-sale security, some problem often arise that customers don’t know who to look for . Thus, in recent years online trading complaints are significant increase. In addition, the delivery time is not accurate . The development of shopping depends on a strong logistics system. But in our country, so far still lack a systematic national freight distribution business. Inadequate logistics infrastructure, third-party logistics services developed slowly, that all hampered the development of online shopping.Although many banks have already set up their own financial authentication center, there lacks a notified and authoritative nationwide authentication center, leading to many cases of cross authentication, repeated authentication and a waste of resources.3.2 Logistics serviceSecond is the limitation in the logistics system. Present from the perspective of the development of the logistics, the logistics of electronic commerce have following problems: the weak link at logistics infrastructure, it has n’t high ly specialization, the third party logistics ineffective work , limited services, that all impact the logistics, logistics have a flavor of planned economy color, from the perspective of logistics activities, our main problems is the development of immature distribution center, a small range of logistics activities, logistics alliance is not high, the low level oflogistics technology, information system applications still closed .Among the corporations providing logistic services for online shopping in China, some 1,000 are traditional ones and their service quality is not good enough; therefore, the need to provide a speedy transaction and delivery regardless of space and distance can hardly be fulfilled.3.3 Legal problems and public-social policiesThe laws and regulations are imperfect. Online shopping, as a new commercial activity, brings unavoidable a series of legal problems, such as the electronic contract, the legal effect question of signing in figure, an economic dispute question of the online trade, computer crime question, etc.There are a number of questions concerning marketing through the web: validity of an electronic signature, legality of an electronic contract, risk, trademarks, loss of right to trade secrets and liabilit y. There are also government’s rules, regulations, economic policies and censorship.Besides, due to the lack of legal protection in this field, arbitration and liability cognizance are difficult when disputes arise. In addition, the efficiency of online payment in China is still low: payment validation from the bank takes a long time (about 10 days), the charge is too high (5 per cent service fee of credit cards transaction), and there are too many restrictions. All these hinder the development of e-commerce in China.4. Solutions to the problems4.1 Establishing a good payment mechanismConsistent with Phoneme Institute's other Privacy Trust studies, the biggest fear consumers have is identity theft (82%), followed by unauthorized access to their bank accounts and telemarketing abuse. Eighty percent of respondents said that the privacy of their personal information is very important or important to them.Based on these findings, banks should concentrate strength on solving the security encryption of the online shopping system, authentication, key technology problem on payment, etc., technically, banks should not only prevent mischief anddestruction to the network of computer by virus and hacker, but also guarantee national benefit and commercial rights and interests and secret of enterprises .At the same time the bank should make breakthrough in trade account settlement and cash allocation between different banks or different regions in order to meet the development demand of network marketingAt the same time, banks should address the online security of their Web sites and provide information about the measures customers can take to protect their financial assets. Banks should clearly communicate their commitment to protecting the privacy of their customers and provide information on how consumers can contact the bank with questions or concerns.Respondents were also asked to suggest actions their bank could take to increase confidence in its ability to protect personal information. The most important issue with online consumers is setting limits on the sharing of personal information with third parties. This finding is also consistent with the results of our 2005 Online Consumer Permissions Study. According to that study, consumers want control over their online experience.The rewards from listening to and respecting the concerns of online consumers can lead to greater trust. And, in the world of online banking, trust is positively related to consumer acceptance and greater use of online banking services.4.2 Improving the lagging logisticsLogistics is defined as a business planning framework for the management of material, service, information, and capital flows .It includes the increasingly complex information, communication and control systems required in today’s business environment.The allocate-and-deliver system of logistics should be perfected. The network marketing has offered internal motive force and external demand to the variety and dispersiveness of the allocate-and-deliver demand and the reform of resources in logistic enterprises. It is urgent to establish a nationwide allocate-and-deliver system, which covers both the urban and rural areas to be accorded to the demand of allocate-and-deliver system of network marketing. Logistic enterprise should not only deliver goods, but also become the service supplier to customer finally to help enterprises to finish the after-sales service, to offer more appreciated service contents,for example, to follow the products order, to offer selling statistics and report form, etc., to further increase the kernel service value of enterprises. In addition, they can develop the third-party-logistics, unify manufacturer service thus to optimize the logistics deliver network, and then the cost of allocate-and-deliver service will be reduced.4.3 Making relevant lawsThe research and formulation of strengthening the laws and regulations to offer the favorable external environment for development of marketing of the network, in order to protect the development of network marketing, developing relevant network management by centering the marketing of the networks, the information safety, settle account in finance, such problems as intellectual property protection, etc., at the same time they should accelerate the modification paces of the current laws and regulations , make and issue the new trade regulation at the same timeThey need not only make the relevant laws, but also strengthen the government’s management the management of government except making the relevant laws.Facing the opportunities and challenges in global development of online shopping, the Chinese government has placed online shopping high on the agenda in its basic economic construction.The key task at present is to establish a unified application and service platform with Chinese characteristics. Upon its completion, currently complicated online shopping can be turned into a simple platform operation, and an advanced service mechanism and infrastructure can be set up, which will facilitate the establishment of a new economic model for e-commerce in traditional enterprises.The government should take an active role in encouraging and supporting the Internationalization of traditional corporations. Besides, it also emphasized the business nature of online shopping, and warned that online shopping activities cannot be done by simply building networks.5. ConclusionThe main advantage of online shopping is that it allows people to browse through many items and categories without leaving their house, to compare the prices of as many shops as they want, and also to order as many items as they can afford without having to worry about how they will transport them, because the online shopping websites also deliver the things to the buyer's home. Furthermore, the Internet is open 24 hours a day, 365 days a year, so you don't have to hurry or worry about finding a parking spot.A new survey shows Internet shopping is increasing thanks to improvements of online payment systems and delivery services. The China Internet Network Information Centre survey reveals 17.9 per cent of consumers shop online often.Among those who have never purchased online, 63.7 per cent said they would convert to online shopping in the future, which means the existence of greater potential market.Online shopping has very bright prospect in china. By the end of 2004, the netizen of Chinese Internet users is 94 million. It is estimated by 2007, Chinese Internet user will reach 140 million. The one faster than this speed is the development of user's number of China's online shopping. It is that 5,630,000 will use users in 2004. It is estimated by 2007, this figure will be up to 16 million, online shopping users will be 3 times those of 2004 in 2007, 28 times those of 2001. In addition, the market scale of online shopping increase by 160% in 2004, the turnover rises to 4,500 million RMB by a wide margin. In 2007 this figure is hopeful to be up to 29,600 million RMB, 6 times those of 2004. In the face of more and more users, in the face of such a big market, I think nobody dares to neglect this market; nobody bets and speaks NO to this market.References1.Hu Chunlan (Hu, Chunlan). New economic English [M]. Tsinghua university press, 20042.Zhang Qingying (Zhang Qingying). Logistics engineering English [M]. Chemical industry press, 20033.ZhuangPeiJun (Zhuang Peijun). Logistics professional English [M]. Electronic industry press, 20034. The fourth one (Ding Mingyi.) enterprise electronic commerce foundation [M]. Electronic industry press, 20025. NiJin (Ni Jin). The wto English [M]. Southeast university press, 2001网络购物行为分析摘要此文从对我国目前网上购物的现实状况入手，深入的分析了网上购物的优，缺点，以及解决的方法等一系列的问题，深入的分析了网上购物给商家和消费者双方带来的利益，使人们对网上购物在中国的发展充满信心。
商城购物系统设计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)译文：摘要：Servlet程序在服务器端运行，动态地生成Web页面与传统的CGI和许多其他类似CGI的技术相比，Java Servlet具有更高的效率，更容易使用，功能更强大，具有更好的可移植性，更节省投资。
关键字：JSP技术，Servlet, HTTP 服务1.1Servlet 的功能Servlets是运行在Web或应用服务器上的Java程序，它是一个中间层，负责连接来自Web浏览器或其他HTTP客户程序的请求和HTTP服务器上的数据库或应用程序。
Servlet的工作是执行西门的任务，如图1.1所示。
图1.1 web中间件的作用(1) 读取用户发送的显式数据最终用户一般在页面的HTML表单中输入这些数据。
然而，数据还有可能来自applet或定制的HTTP客户程序。
(2) 读取有浏览器发送的隐式请求数据图1.1中显示了一条从客户端到Web服务器的单箭头，但实际上从客户端传送到Web服务器的数据有两种，它们分别为用户在表单中输入的显式数据，以及后台的HTTP信息。
两种数据都很重要。
HTTP信息包括cookie、浏览器所能识别的媒体类型和压缩模式等。
(3) 生成结果这个过程可能需要访问数据库、执行RMI或EJB调用、调用Web服务，或者直接计算得出对应的响应。
实际的数据可能存储在关系型数据库中。
该数据库可能不理解HTTP，或者不能返回HTML 形式的结果，所有Web浏览器不能直接与数据库进行会话。
即使它能够做到这一点，为了安全上的考虑，我们也不希望让它这么做。
对应大多数其他应用程序，也存在类似的问题。
因此，我们需要Web 中间层从HTTP流中提取输入数据，与应用程序会话，并将结果嵌入到文档中。
（4）向用户发送显式数据（即文档）这个文档可以用各种格式发送，包括文本（HTML或XML），二进制（GIF图），甚至可以式建立在其他底层格式之上的压缩格式，如gzip。
超市管理系统外文翻译中英文参考
外文文献翻译(含：英文原文及中文译文)译文字数：4400多字文献出处：G kim. Design of Supermarket Management System [J]Advanced Materials Research, 2015, 9(5) 16-26.英文原文Design of Supermarket Management SystemG kimAbstractIn recent years, with computer information and the popularity of the Internet, the use of advanced systems and software to develop enterprise-level functional software has become an important form of employee work. However, the operation status of small and medium-sized supermarkets in the domestic market is its information speed and some of them are far less than large-scale supermarkets. The timeliness and practicality of the manual operation and summary information mode currently adopted by small- and medium-sized supermarkets need to be improved. Manual information error rates are also extremely high. Therefore, for the management of personnel and personnel of these companies, the storage and processing of relevant information is also very important. Today, with the rapid economic development, it is necessary to have efficient treatment methods andoptimized management methods in order to adapt to market competition. Therefore, it is urgent to speed up the information process of domestic small and medium-sized supermarkets. The use of computer software to centrally manage relevant information and eventually form centralized, accurate and authoritative commodity information is an inevitable trend.Supermarket management system is a typical computer management system. Similar to other management systems, its development process also mainly includes two aspects: the establishment of background data table structure and table relationships, and the development of front-end application programs. For the development of applications, the basic requirements for the development of full-featured, easy to use. For the establishment of the database, the main concern is the consistency, integrity, and data security of the data. When the system was under construction, it fully investigated and investigated the entire process of purchase, sales, and storage of several small and medium-sized supermarkets, making full use of the existing software and hardware environment, trying to control the software construction funds, and shortening the software development cycle so as to minimize the time Meet the maximum user's work needs in time.This article starts from the practical application of supermarket management work, analyzes and designs in the process of system requirements analysis, strictly according to the thought and method ofsoftware engineering; in the process of system development, the overall design from the two aspects of functional structure and technical structure, and finally A very practical management system has been formed. The overall structure of this dissertation is as follows: First, in the first chapter of the system, the research background and the significance of the topic selection of the supermarket management system are introduced; in the second chapter, the technical feasibility and economic feasibility of the system are analyzed, and The demand model of the supermarket management system was introduced in detail, and finally the system design and system testing. The system is mainly designed and developed from the following three aspects: the outline design of the supermarket management system, system database design and detailed system design. The system uses a typical MVC three-tier structure. The presentation layer adopts the traditional jsp technology. The middle layer adopts the popular Fitter+Hibernate. The Fitter technology runs through the entire middle layer and seamlessly combines the web layer, service layer, and DAO layer. Integration. The data service layer is used to service data. The interaction between the front desk and the back office adopts html as the data exchange medium, and the information is distributed in the form of internet. After strict tests, the system is feasible.Keywords: management system; Fitter; MVC; HibernateIntroductionThe formation of supermarkets in China in the early 1990s has now become an important form of China's retail industry, which has played an important role in the development of the national economy. With the rapid development of supermarkets, their operations and management have become more complex. The early forms of salesperson station counters can no longer meet the development of existing sales, and thus urgently require the introduction of new management technologies. The supermarket form has various advantages, but in the current situation, it still has a backward side shared by retail enterprises. For example, it cannot effectively manage each type of goods, the collection and payment settlement speed is slow, and it is prone to business errors. It is not appropriate to carry out commodity price adjustment. , inventory efficiency is low, and in the daily management of supermarkets, merchandise, sales, sales, deposits and other decisions based on experience, the lack of real-time analysis capabilities, management personnel on the timely transfer of data requirements have not been met. With the rapid development of supermarkets, the management of these supermarkets has become increasingly complex. The amount of data that needs to be processed daily has also gradually increased. The intermediate links of business operations are also increasing. The original manual management has been unable to cope with this complex market. To this end, I chose the supermarket management system design theme,relying on modern computer information processing technology to manage supermarkets, which saved a lot of manpower, material resources, improved the working conditions of employees, reduced labor intensity, and can quickly reflect the goods The analysis of the status of advancement, sales, deposits, and various feedback information enables managers to quickly make appropriate decisions on changes in the market and speed up the efficiency of supermarket operations and management.1 Research purpose and significanceComputer technology is a major trend in the development of society today. In recent years, the development of informatization has become even more rapid. It should be widely used and has become one of the essential tools for use in various industries. At present, the informationization of small and medium-sized supermarkets in the domestic market is far less than that of large-scale supermarkets. For these enterprises, it is necessary to have efficient treatment methods and management methods in order to adapt to market competition. Therefore, it is very urgent to speed up the informationization process of supermarkets. Supermarkets play a very important role in the daily lives of Chinese citizens. They also play an important role in satisfying people's daily diversified needs and serving as transit hubs for various industries. However, traditional supermarket management still faces many problems. From the sources of supermarkets, there are numerousgoods and various types of goods, which are frequently imported and shipped. From the perspective of supermarket staff, their employees are generally more and their positions are also numerous. Classification, management is also relatively complicated. Prior to the development of software systems, people used traditional manual methods to manage them. However, there are many shortcomings in this manual management method. For example, the management efficiency of the management is low, and the accuracy rate is difficult to guarantee. With the increase of time, manual work has produced a large number of documents and data, which is not only inconvenient to save, but also brings many difficulties for searching, updating, and maintenance. With the rapid economic development, people have not satisfied the current manual methods. In addition, the requirements of companies and customers on various links have also been increasing. As for supermarket management, procurement personnel are required for all aspects of supermarket management. Purchasers may need to press Assignment of work areas or job responsibilities, etc., as well as shipments, purchases, etc. The close link between each link is also an integral part of the relationship. Errors in one link lead to other issues such as data errors or time delays. If employees are classified strictly, they need various professional talents. Therefore, Need to have corresponding management. Therefore, the current small and medium-sized supermarkets urgently need a well-developedmanagement system. This will not only reduce the operational burden on managers, but also free management personnel from heavy physical labor and turn them into mental work.The main purpose of the design and development of this system is to realize the information, intelligence, and convenience of the management of small and medium-sized supermarkets, and to reduce some of the losses caused by over-complicated cargo management, human resources management, and inventory management. As a part of computer applications, the use of computers to manage supermarket-related goods information has advantages that cannot be matched by manual management. For example: rapid information retrieval, high data reliability, large amount of data storage, good operational confidentiality, and increased information lifespan Wait. These advantages can greatly improve the efficiency of supermarket management and at the same time bring certain economic benefits to the development of the company.2 Problems with the current systemAs a comprehensive goods transit hub, there are many problems in its system operation process. The main performance is as follows: Stand-alone single-user system: With the development of the network, the existing stand-alone single-user system is far from meeting the needs. At the same time, the original database does not support multi-user network operating environment.Poor system independent use: The original system is a program written using the development tools provided by the database. Therefore, the use of the system is greatly constrained by the database and the program performance is not good. It also cannot support new databases such as Access. The use of enthusiasm is not high: In addition, because information lacks a unified portal, the resulting information cannot be assigned to the responsible person, which ultimately results in poor applicability of information.Poor modularity: Since the original system is not a complete programming language, the system cannot achieve modularization of the code and inconveniences the expansion of the function.3 Research contentThe information provided by the supermarket management system is characterized by large amounts of information, high accuracy, and wide coverage. During the construction of the system, the system fully investigated and researched the business processes of existing neutral supermarkets in Changchun, and fully utilized the existing software and hardware environment. Try to control the software construction funds and shorten the software construction period so as to meet the needs of the largest users in the shortest possible time.The main work of the dissertation is to use the architecture of J2EE to implement the design of the platform system based on the requirementsanalysis. The following issues that the user concerned are concerned about are mainly considered in the system development process: The speed of the software: The speed of the system is the key factor that initially gives the user a good or bad impression. Regardless of how clear the requirements are, if the operation speed is too slow, it will affect the user's emotions. Therefore, the system design fully considers this problem. . In order to solve this problem, the project redesigned the software based on the hardware provided by the user, improved the business processing capability, and met the requirements of the traffic management department to improve the management speed of the complaints and reporting system business. At the same time, it also improved System functions;The efficiency and real-time nature of system data release: The traffic management department has a wide range of business interactions, and some of the focus of the reported cases have high requirements on the data's real-time performance. Therefore, in response to the demand for “data effectiveness”, this system should be Focus on considerations in order to achieve high efficiency and real-time performance of data release and transmission;System availability and system maintenance at a later stage: In addition to providing a friendly and convenient operation interface, a clear and clear system function and operating speed within the expectedrange, the system should have a certain degree of security. Therefore, in the design of the system, you should consider providing a regular backup and manual one-click backup function. Using this design will facilitate the user's operation of the system and help the use and maintenance of related personnel.In order to make the supermarket management system truly simple and practical, it fully considers its functional requirements in the design process. In addition, its operation process is simple, and it is compatible with the mainstream database and any operating system, and truly realizes the information. The integrated functions of collection, classification, statistics and management.The system provides flexible data collection, data import and export, personnel scheduling and other means. In addition, system administrators can implement strict system functions such as identity entry and permission granting to ensure information security. The entire system consists of four modules, which are inventory management, sales management, stock management, and personnel management. Several modules work in coordination with each other, and finally realize the integration of sales, sales, and storage.4 Technical feasibilityFrom the user's point of view, technical feasibility can refer to whether the products developed in the current technology can be usedquickly by users. In system development, the application pages are as user-friendly as possible, and the interface is relatively simple to operate. At the same time, the current popularity of computers and the improvement of the quality of employees in supermarkets, whether it is management or ordinary business personnel, have a corresponding computer operation basis. Therefore, when the new system is put into use, a small amount of training for employees can basically meet the requirements for the smooth operation of the system.In addition, another aspect of the technical feasibility analysis is to analyze whether the current technology level, software conditions and hardware can meet the required development work requirements. Through the analysis of the system, this system intends to adopt the development mode of B/S three-tier structure. The advantage of this mode is that it provides a cross-platform, simple application environment, thus avoiding the development of multiple different operating systems. The repeated operation of the application system truly realizes the separation of the development work from the environment. Therefore, the use of the B/S architecture facilitates the expansion of the user group and the management of the application system.For the choice of development languages, the system is planned to adopt java language. As a programming language, java language has the characteristics of simplicity, object orientation, portability, etc. In addition,java language can maximize the use of the network, and it can also not Limited by CPU and environment. The database of this system is planned and open to enable it to run on some mainstream platforms. The high-performance features of sqlserver2005 make oracle maintain a world record of TPC-D and TPC-C under the open platform because its use risk is relatively low. , and can also be fully backward compatible. The application of sqlserver2005 has been widely recognized by users. Using sqlserver2005 database, sqlserver2005 database has the characteristics of openness, high performance and low trial risk. The technical feasibility is also reflected in the hardware. From the current user-supplied hardware conditions, it can be seen that its capacity and reliability meet the basic requirements of the system. From the above information we can see that this system is technically feasible.5 Economic feasibilityThe economic feasibility of the analysis system is also an integral part of the system construction. From the standpoint of the advantages of computer software, first of all, the network transmission of information is not limited by distance, thus saving manpower and material resources incalculable; on the other hand, the convenience of the system Sex and convenience can improve the sales efficiency of supermarkets, and can also provide data support that helps managers make decisions. At the same time, they can greatly improve the economic efficiency ofsupermarkets. Therefore, the economic benefits are substantial, so it is economically feasible. For sex, the system is completely feasible.(1) Supermarkets have the ability to bear system development costsDealers who operate products have strong financial support. Therefore, during the development of the system, the enterprise is fully capable of assuming the required development costs. In addition, the product relies entirely on the existing hardware infrastructure of the supermarket at the time of design, and it also saves development costs to some extent.(2) The system will bring certain economic benefits for the enterpriseThe economic benefits obtained in the management will be a comprehensive comprehensive benefit, so it is difficult to quantitatively analyze it. However, the economic benefits brought by the new system are very obvious. Its main performance is that it liberates employees from some tedious affairs. Through the new system, it can solve a large number of manual work and analyze the decision-making work, etc. It not only saves a lot of time, but also provides valuable information for the company's various decisions and brings certain economic benefits to the company.中文译文超市管理系统的设计G Kim摘要近年来，随着计算机信息和互联网的普及，利用先进的系统和软件开发企业级功能软件已成为员工工作的重要形式。
外文翻译-网上购物商城的设计与实现
1.外文翻译译文第二章背景Sensornet研究初见端倪大概是在十年前。
此后，sensornet领域与低功耗无线网络及其应用的内在要求被理解地更加成熟显著。
在同一时期，无论是IETF 和IEEE标准组织已经取得显著的进展。
我们已经看到了引进IEEE 802.15.4的，专为低功耗，低成本，以及sensornet应用的大规模需求而设计的。
我们还看到引入IPv6和支持IP网络的快速增长所需的必要的协议和机制。
在这两个环节和IP网络技术，与科研相结合的发展进步显著，是什么使得它在今天是可行的并且真正融入到了sensornets互联网架构。
在本章中，我们列举的每一项都是本文的基础也是技术进步的背景。
但是在这里我们先描述几个积极使用sensornets的应用。
2.1一种新的计算类戈登贝尔观察到了一类新的计算出现大约每十年和创造计算机课[9]贝尔定律。
每一个新类的计算往往代表通过技术进步，允许更低的成本和更小的计算设备启用了一个颠覆性的技术。
到目前为止，我们已经看到通过大型机，小型机，个人电脑，手持设备的发展，以及嵌入式计算。
Sensornets代表下一节课计算。
在低成本和低功率微控制器和收音机的突破，sensornets启用需要大量嵌入在物理环境中的节点的新的应用。
2.1.1典型应用在过去的十年中，许多应用程序已被提出，部署，并进行评价。
这方面的经验使我们更好地了解应用需求，这直接转化为网络挑战。
这些应用要求从更传统的IP网络不同。
在本节中，我们提出了一些sensornet应用程序提供一个更好的了解所固有的网络挑战。
环境监测环境监测应用包括在农业中使用，以提供有关土壤条件，更大的信息sensornets的;生物研究，以更好地了解鸟类难以捉摸的行为[109，161]或森林内的小气候提供更多的理解[163，170];并执行火山[181]的地质研究。
这些应用程序通常需要的环境数据（例如，温度，占用）中央服务器的慢周期报告- 荷兰国际集团。
基于struts2的购物网站的设计与实现外文资料翻译
毕业设计(论文)外文资料翻译学院（系）：计算机科学与技术学院专业：计算机科学与技术姓名：学号：外文出处： A Development FrameApplication Based on the Hibernate Application Based on the Hibernate、、the Struts and the Spring J2EE附件： 1. 1.外文资料翻译译文；外文资料翻译译文；外文资料翻译译文；2.2.2.外文原文。
外文原文。
指导教师评语：签名：年月日(用外文写用外文写) )附件1：外文资料翻译译文：外文资料翻译译文随着随着Java Java Java技术的逐渐成熟与完善技术的逐渐成熟与完善技术的逐渐成熟与完善,,作为建立企业级应用的标准平台作为建立企业级应用的标准平台,J2EE ,J2EE ,J2EE平台得到平台得到了长足的发展。
借助于了长足的发展。
借助于J2EE J2EE J2EE规范中包含的多项技术：规范中包含的多项技术：规范中包含的多项技术：Enterprise Enterprise JavaBean(EJB)JavaBean(EJB)、、Java Servlets(Servlet)Servlets(Servlet)、、Java Server Pages(JSP)Java Server Pages(JSP)、、Java Message Service(JMS)Java Message Service(JMS)等，开发等，开发出了许多应用系统。
但是，在传统出了许多应用系统。
但是，在传统J2EE J2EE J2EE应用的开发过程中也出现了一些问题：应用的开发过程中也出现了一些问题：应用的开发过程中也出现了一些问题：(1)(1)数据模型和逻辑模型之间的矛盾。
数据模型和逻辑模型之间的矛盾。
目前使用的数据库基本上都是关系型数据库，而Java Java本质上是一种面向对象的语言，对象在存储和读取时使用本质上是一种面向对象的语言，对象在存储和读取时使用本质上是一种面向对象的语言，对象在存储和读取时使用SQL SQL SQL和和JDBC JDBC进行数据库进行数据库操作，降低了编程的效率以及系统的可维护性；操作，降低了编程的效率以及系统的可维护性；(2)(2)传统的传统的传统的J2EE J2EE J2EE应用多采用基于应用多采用基于应用多采用基于EJB EJB EJB的重量级框架，的重量级框架，这种框架适合于开发大型企业应用，但是使用用，但是使用EJB EJB EJB容器进行开发和调试需要耗费大量时间。
订单管理系统中英文对照外文翻译文献
中英文对照外文翻译(文档含英文原文和中文翻译)MySQL and JSP Web applicationsJSP developers encounter unique problems when building web applications that require intense database connectivity. MySQL and JSP Web Applications addresses the challenges of building data-driven applications based on the JavaServer Pages development model. MySQL and JSP Web Applications begins with an overview of the core technologies required for JSP database development--JavaServer Pages, JDBC, and the database schema. The book then outlines and presents an Internet commerce application that demonstrates concepts such as receiving and processing user input, designing and implementing business rules, and balancing the user load on the server. Through the JDBC (Java DataBase Connector), the developer can communicate with most commercial databases, such as Oracle. The solutions presented in MySQL and JSP Web Applications center on the open source tools MySQL and Tomcat, allowing the reader an affordable way to test applications and experiment with the book'sexamples.So What Is JSP All About?If you meet the requirements mentioned, you should already have a pretty good idea what the answer to this question is. JSP is all about doing highly object-oriented Web sites that can leverage all the best practices of modern software engineering. These practices include things such as SQL databases and UML-based design. This isn't to say that JSP is a cure-all and that using it will automatically make your Web site a paragon of engineering art. It's just as possible to design bad Web sites in JSP as with any other technology. That's why, as you go through the text, you will see how to incorporate the best practices and how to avoid the pitfalls of convenience when projects get stressful. JSP itself is an evolutionary step along the path that started with the first static Web servers, moved through CGI-enabled servers, and finally the first generation of script-enabled servers. JSP is less a Web server with a Java component than it is a Java engine that understands the Web.JSP grew out of Java servlets. Servlets allow the developer to handle the incoming Web requests using a Java program that has access to all the normal information that a Common Gateway Interface (CGI) program would. In addition, the servlet has access to session-persistent objects. These are Java objects that are associated with a specific user session and can be used to store state between requests. Servlet programming was a major step forward in allowing developers to write well-structured modular Web applications using an object-oriented language. It also solved the problem of state persistence, allowing more information to reside on the server during a transaction and less to have to pass back and forth between the user and the server. Servlets still suffered from one major problem. Because they eventually need to spit out HTML, the HTML coding had to be embedded in the servlet code. This led to code fragments like the one shown here:Out.println("<HTML>\n<HEAD>\n<TITLE>Thank you forRegistering</TITLE></HEAD>\n");Out.println("<IMG SRC=\"thanks.jpg\" WIDTH=200 HEIGHT=100 ALIGN=\"LEFT\”>");This kind of embedding gets very old very fast when you have to code a lot of pages. In addition, having to escape all of the quotation marks can lead to a lot of confusing andhard-to-find errors if you leave out a backslash. Eventually, a still-better idea emerged. Suppose that you could combine the best of static HTML pages and with the interactive capabilities of servlets. The result was JavaServer Pages (on the Microsoft side, the result was Active Server Pages). As Figure I.1 shows, JSP is a complicated beast. In the next chapter, you'll walk through this flow in detail, but for the moment, here are the major steps:1. A request comes in from a browser using the normal HTTP request format.2. The Web server hands off the request to JSP. JSP looks at the filename and finds the appropriate JSP file.3. The .jsp file is converted into a .java file, containing Java code that will create a class whose name is derived from the .jsp filename.4. JSP then compiles the .java file using javac to produce a .class file. Note that the two previous steps are skipped if a .class file already exists and is newer than the .jsp file.5. An instance of the newly created class is instantiated and sent the _jspService message.6. The new instance looks to see if there is already an instance of the er object called user existing in the session object space for the currently connected user. If not, one is instantiated.7. As part of servicing stuff.jsp, the user instance is called with the getUserName() method.8. If the JSP processing requires access to information in a database, it uses JDBC to make the connection and handle the SQL requests.As you can see, a tremendous amount of power is available in the JSP world. Developers are free to write Web pages that look mostly like HTML, except where callouts to Java are required. But, at the same time, they are free to develop fully fleshed-out object-oriented applications using all the features that Java can bring to bear. They also get all the benefits of servlets, including session persistence.Why Do We Need Databases?Well, one reason is so that Larry Ellison of Oracle can afford to keep himself on Prozac when he thinks about Bill Gates. A more serious answer is the same reason that drove man to first press a stick against a piece of wet mud: because it's good to write things down. Web servers are marvelous creatures, but they're a bit like idiot savants. Ask them to serve a Web page or run a piece of Java, and they perform like a champ. But start asking them to remember what they didfive minutes ago, and they develop amnesia faster than a character in a soap opera.The first and most important reason that you use databases is that there's a lot in an e-commerce transaction that you need to remember and track:•A user's name, address, credit card, and other information previously entered on a registration page•hat the user might have put into a shopping car t and left from a previous transaction•What items are in stock, along with their price, description, and so on•Orders that need to be fulfilled, orders that have been shipped, and items that have been backordered .Now, you could store all this information in a flat file on the server's hard disk, but there are other important properties that you want to have for this data:•You want to be able to back out a transaction if part of it fails.•You want to be able to locate the data somewhere more secure than the Web server, which could be in a DMZ or outside the firewall altogether.•You want to be able to access data such as user data or products quickly, even if there are thousands or millions of them.When you add these items to the shopping list, only a relational database will really do the job effectively.MySQLMany sites don't need the battleship strength (and price tag) of Oracle. MySQL is an open-source SQL database available for anyone to use, with many (although not all) of the features of its big brothers, such as Oracle.MySQL is available for just about any computer that has decent power—it is fairly lightweight on the processor and easy to install (10 minutes, as opposed to multiple hours for Oracle).So, perhaps you are wondering, what's the catch? What are you not getting in MySQL that makes people turn to Oracle? Well, MySQL is a neat little package, but it is missing some things that would be nice to have in a perfect world.A major feature that MySQL does not offer is database consistency checking. You can useforeign key tags in your schema, but MySQL cheerfully ignores them. A lot of DB As I know would consider this a very bad thing.A foreign key constraint prevents you from creating inconsistent data. For example, let's suppose that you had a scheme that looked like this:CREATE TABLE USER (USERID INTEGER,FIRST_NAME V ARCHAR(80),LAST_NAME V ARCHAR(80));CREATE TABLE PURCHASE (USERID FOREIGN KEY USER(USERID),ITEM INTEGER,QUANTITY INTEGER);In a database such as Oracle's, if you created an entry in the PURCHASE table with a user ID of 3, there would have to already be a user ID of 3 in the USER table or an error would occur. Similarly, you couldn't delete user 3 from USER if it was referenced in PURCHASE.The MySQL folks make a pretty impassioned argument in their documentation that depending on foreign keys for data integrity is a bad idea anyway, but convincing your DBA of this philosophy is likely to degrade into a religious debate.In addition, some other features are missing, such as subselects and select into. But probably the other major piece that you will miss is the rollback/commit functionality. MySQL does implement rollback and commit for certain types of tables, but not all of them. Again, the MySQL folks offer their own spin on why this is okay, but being able to roll back transactions is (in my opinion) important enough to make sure that you have it available.Rollback allows you to set a savepoint on the database before starting to do a series of transactions with it, and be able to either roll back to the original state or commit the changes at the end. For example, when recording a purchase, you need to record a debit against the user's account and enter a record into the shipping table so that you'll know later to ship the item. Let's say that the second part fails. You wouldn't want to charge the user but not ship the item. Thus, you'd want to roll back to the state before the transaction began.So, MySQL isn't a full-blown production database—at least, not yet. It's still good enoughfor probably 90% of the e-commerce sites in the world, however. And version 4.0, which is in alpha as of this writing, addresses a number of these concerns, including row-level locking and transaction control.Putting Tomcat and MySQL TogetherCombining Tomcat and MySQL provides a powerful, reliable, and free platform that you can use to learn, develop, and deploy JSP applications. And, best of all, the code that you develop using this platform will run nicely using iPlanet and Oracle or WebSphere and SQL Server.As a learning tool the two together are almost "reference implementations" of their respective protocols (JSP and SQL). As a result, you won't pick up any nasty vendor-proprietary bad habits while you're getting up to speed.In addition, you can enjoy the knowledge that you are supporting the open-source software movement. Open-source software is code that is made freely available under one of several public licenses, frequently the GNU General Public License (GPL).Why is it good to support this movement? There are two sides to this answer: one technical and one political. Technically, it's a good thing because open-source software tends to encourage the development of open standards such as JSP and JDBC, allowing youto choose your tools from among a larger group rather than being locked into one vendor's proprietary solution. It's a positive thing politically because it keeps the large companies honest. WebLogic and iPlanet have to stay competitive and responsive because they know that there's a free solution out there if they aren't. And when you use open-source software, you are sending a message that your overriding concerns are features and reliability, not having a large company to sue if something goes wrong.MySQL和JSP的Web应用程序JSP开发人员构建Web应用程序时遇到需要强大的数据库连接的特殊问题。
英语文献翻译网上商城JAVA
毕业设计（论文）外文翻译题目：基于Java的网上商城系统的设计与实现院（系）：计算机科学与工程专业：网络工程班级：070607学生：冯宁学号：*********指导教师：**2011年05 月09日English OnlyJava and the InternetIf Java is, in fact, yet another computer programming language, you may question why it is so important and why it is being promoted as a revolutionary step in computer programming. The answer isn’t immediately obvious if you’re coming from a traditional p rogramming perspective. Although Java is very useful for solving traditional standalone programming problems, it is also important because it will solve programming problems on the World Wide Web.What is the Web?The Web can seem a bit of a mystery at fi rst, with all this talk of “surfing,” “presence,” and “home pages.” It’s helpful to step back and see what it really is, but to do this you must understand client/server systems, another aspect of computing that’s full of confusing issues.1.Client/Server computingThe primary idea of a client/server system is that you have a central repository of information—some kind of data, often in a database—that you want to distribute on demand to some set of people or machines. A key to the client/server concept is that the repository of information is centrally located so that it can be changed and so that those changes will propagate out to the information consumers. Taken together, the information repository, the software that distributes the information, and the machine(s) where the information and software reside is called the server. The software that resides on the remote machine, communicates with the server, fetches theinformation, processes it, and then displays it on the remote machine is called the client.The basic concept of client/server computing, then, is not so complicated. The problems arise because you have a single server trying to serve many clients at once. Generally, a database management system is involved, so the designer “balances” the layo ut of data into tables for optimal use. In addition, systems often allow a client to insert new information into a server. This means you must ensure that one client’s new data doesn’t walk over another client’s new data, or that data isn’t lost in the pro cess of adding it to the database (this is called transaction processing). As client software changes, it must be built, debugged, and installed on the client machines, which turns out to be more complicated and expensive than you might think. It’s especia lly problematic to support multiple types of computers and operating systems. Finally, there’s the all-important performance issue: You might have hundreds of clients making requests of your server at any one time, so any small delay is crucial. To minimize latency, programmers work hard to offload processing tasks, often to the client machine, but sometimes to other machines at the server site, using so-called middleware.(Middleware is also used to improve maintainability.)The simple idea of distributing information has so many layers of complexity that the whole problem can seem hopelessly enigmatic. And yet it’s crucial: Client/server computing accounts for roughly half of all programming activities. It’s responsible for everything from taking orders a nd credit-card transactions to the distribution of any kind of data—stock market, scientific, government, you name it. What we’ve come up with in the past is individual solutions to individual problems, inventing a new solution each time. Thesewere hard to create and hard to use, and the user had to learn a new interface for each one. The entire client/server problem needs to be solved in a big way.2.The Web as a giant serverThe Web is actually one giant client/server system. It’s a bit worse than that, since you have all the servers and clients coexisting on a single network at once. You don’t need to know that, because all you care about is connecting to and interacting with one server at a time (even though you might be hopping around the world in your search for the correct server).Initially it was a simple one-way process. You made a request of a server and it handed you a file, which your machine’s browser software (i.e., the client) would interpret by formatting onto your local machine. But in short order people began wanting to do more than just deliver pages from a server. They wanted full client/server capability so that the client could feed information back to the server, for example, to do database lookups on the server, to add new information to the server, or to place an order (which required more security than the original systems offered). These are the changes we’ve been seeing in the development of the Web.The Web browser was a big step forward: the concept that one piece of information could be displayed on any type of computer without change. However, browsers were still rather primitive and rapidly bogged down by the demands placed on them. They weren’t particularly interactive, and tended to clog up both the server and the Internet because any time you needed to do something that required programming you had to send information back to the server to be processed. It could take many seconds or minutes to find out you had misspelled something in your request. Since the browser was just a viewer it couldn’t perform even the simplest computing tasks. (On the otherhand, it was safe, because it couldn’t execute any programs on your local machine that might contain bugs or viruses.)To solve this problem, different approaches have been taken. To begin with, graphics standards have been enhanced to allow better animation and video within browsers. The remainder of the problem can be solved only by incorporating the ability to run programs on the client end, under the browser. This is called client-side programming.Client-side programmingThe Web’s initial server-browser design provided for interactive content, but the interactivity was completely provided by the server. The server produced static pages for the client browser, which would simply interpret and display them. Basic HyperText Markup Language (HTML) contains simple mechanisms for data gathering: text-entry boxes, check boxes, radio boxes, lists and drop-down lists, as well as a button that can only be programmed to reset the data on the form or “submit” the data on the form back to the server. This submission passes through the Common Gateway Interface (CGI) provided on all Web servers. The text within the submission tells CGI what to do with it. The most common action is to run a program located on the server in a directory that’s typically called “cgi-bin.” (If you watch the address window at the top of your browser when you push a button on a Web page, you can sometimes see “cgi-bin” within all the gobbledygook there.) These programs can be written in most languages. Perl has been a common choice because it is designed for text manipulation and is interpreted, so it can be installed on any server regardless of processor or operating system. However, Python (my favorite—see ) has been making inroads because of its greater power and simplicity.Many powerful Web sites today are built strictly on CGI, and you can in fact do nearly anything with CGI. However, Web sites built on CGI programs can rapidly become overly complicated to maintain, and there is also the problem of response time. The response of a CGI program depends on how much data must be sent, as well as the load on both the server and the Internet. (On top of this, starting a CGI program tends to be slow.) The initial designers of the Web did not foresee how rapidly this bandwidth would be exhausted for the kinds of applications people developed. For example, any sort of dynamic graphing is nearly impossible to perform with consistency because a Graphics Interchange Format (GIF) file must be created and moved from the server to the client for each version of the graph. And you’ve no doubt had direct experience with something as simple as validating the data on an input form. You press the submit button on a page; the data is shipped back to the server; the server starts a CGI program that discovers an error, formats an HTML page informing you of the error, and then sends the page back to you; you must then back up a page and try again. Not only is this slow, it’s inelegant.The solution is client-side programming. Most machines that run Web browsers are powerful engines capable of doing vast work, and with the original static HTML approach they are sitting there, just idly waiting for the server to dish up the next page. Client-side programming means that the Web browser is harnessed to do whatever work it can, and the result for the user is a much speedier and more interactive experience at your Web site.The problem with discussions of client-side programming is that they aren’t very different from discussions of programming in general. The parameters are almost the same, but the platform is different; a Web browser is like a limited operating system. In the end, you must still program, and this accounts for the dizzying array of problems and solutions produced byclient-side programming. The rest of this section provides an overview of the issues and approaches in client-side programming.1.Plug-insOne of the most significant steps forward in client-side programming is the development of the plug-in. This is a way for a programmer to add new functionality to the browser by downloading a piece of code that plugs itself into the appropriate spot in the browser. It tells the browser “from now on you can perform this new activity.” (You need to download the plug-in only once.) Some fast and powerful behavior is added to browsers via plug-ins, but writing a plug-in is not a trivial task, and isn’t something you’d want to do as part of the process of building a particular site. The value of the plug-in for client-side programming is that it allows an expert programmer to develop a new language and add that language to a browser without the permission of the browser manufacturer. Thus, plug-ins provide a “back door” t hat allows the creation of new client-side programming languages (although not all languages are implemented as plug-ins).2.Scripting languagesPlug-ins resulted in an explosion of scripting languages. With a scripting language, you embed the source code for your client-side program directly into the HTML page, and the plug-in that interprets that language is automatically activated while the HTML page is being displayed. Scripting languages tend to be reasonably easy to understand and, because they are simply text that is part of an HTML page, they load very quickly as part of the single server hit required to procure that page. The trade-off is that your code is exposed for everyone to see (and steal). Generally, however, you aren’tdoing amazingly sophisticated things with scripting languages, so this is not too much of a hardship.This points out that the scripting languages used inside Web browsers are really intended to solve specific types of problems, primarily the creation of richer and more interactive graphical user interfaces (GUIs). However, a scripting language might solve 80 percent of the problems encountered in client-side programming. Your problems might very well fit completely within that 80 percent, and since scripting languages can allow easier and faster development, you should probably consider a scripting language before looking at a more involved solution such as Java or ActiveX programming.The most commonly discussed browser scripting languages are JavaScript (which has nothing t o do with Java; it’s named that way just to grab some of Java’s marketing momentum), VBScript (which looks like Visual BASIC), and Tcl/Tk, which comes from the popular cross-platform GUI-building language. There are others out there, and no doubt more in development.JavaScript is probably the most commonly supported. It comes built into both Netscape Navigator and the Microsoft Internet Explorer (IE). Unfortunately, the flavor of JavaScript on the two browsers can vary widely (the Mozilla browser, freely downloadable from , supports the ECMAScript standard, which may one day become universally supported). In addition, there are probably more JavaScript books available than there are for the other browser languages, and some tools automatically create pages using JavaScript. However, if you’re already fluent in Visual BASIC or Tcl/Tk, you’ll be more productive using those scripting languages rather than learning a new one. (You’ll have your hands full dealing with the Web issues already.)3.JavaIf a scripting language can solve 80 percent of the client-side programming problems, what about the other 20 percent—the “really hard stuff?” Java is a popular solution for this. Not only is it a powerful programming language built to be secure, cross-platform, and international, but Java is being continually extended to provide language features and libraries that elegantly handle problems that are difficult in traditional programming languages, such as multithreading, database access, network programming, and distributed computing. Java allows client-side programming via the applet and with Java Web Start.An applet is a mini-program that will run only under a Web browser. The applet is downloaded automatically as part of a Web page (just as, for example, a graphic is automatically downloaded). When the applet is activated, it executes a program. This is part of its beauty—it provides you with a way to automatically distribute the client software from the server at the time the user needs the client software, and no sooner. The user gets the latest version of the client software without fail and without difficult reinstallation. Because of the way Java is designed, the programmer needs to create only a single program, and that program automatically works with all computers that have browsers with built-in Java interpreters. (This safely includes the vast majority of machines.) Since Java is a full-fledged programming language, you can do as much work as possible on the client before and after making req uests of the server. For example, you won’t need to send a request form across the Internet to discover that you’ve gotten a date or some other parameter wrong, and your client computer can quickly do the work of plotting data instead of waiting for the server to make a plot and ship a graphic image back to you. Not only do you get the immediate win of speed and responsiveness, but the general network traffic and load on servers can be reduced, preventing the entire Internet from slowing down.One advantage a Java applet has over a scripted program is that it’s in compiled form, so the source code isn’t available to the client. On the other hand, a Java applet can be decompiled without too much trouble, but hiding your code is often not an important issue. Two other factors can be important. As you will see later in this book, a compiled Java applet can require extra time to download, if it is large. A scripted program will just be integrated into the Web page as part of its text (and will generally be smaller and reduce server hits). This could be important to the responsiveness of your Web site. Another factor is the all-important learning curve. Regardless of what you’ve heard, Java is not a trivial language to learn. If you’re a VISUAL BASIC programmer, moving to VBScript will be your fastest solution (assuming you can constrain your customers to Windows platforms), and since it will probably solve most typical client/server problems, you might be hard pressed to justify learning Java. If you’r e experienced with a scripting language you will certainly benefit from looking at JavaScript or VBScript before committing to Java, because they might fit your needs handily and you’ll be more productive sooner.4.SecurityAutomatically downloading and running programs across the Internet can sound like a virus-builder’s dream. If you click on a Web site, you might automatically download any number of things along with the HTML page: GIF files, script code, compiled Java code, and ActiveX components. Some of these are benign; GIF files can’t do any harm, and scripting languages are generally limited in what they can do. Java was also designed to run its applets within a “sandbox” of safety, which prevents it from writing to disk or accessing memory outside the sandbox.Microsoft’s ActiveX is at the opposite end of the spectrum. Programming with ActiveX is like programming Windows—you can do anything you want. So if you click on a page that downloads an ActiveX component, that component might cause damage to the files on your disk. Of course, programs that you load onto your computer that are not restricted to running inside a Web browser can do the same thing. Viruses downloaded from Bulletin-Board Systems (BBSs) have long been .The solution seems to be “digital signatures,” whereby code is verified to show who the author is. This is based on the idea that a virus works because its creator can be anonymous, so if you remove the anonymity, individuals will be forced to be responsible for their actions. This seems like a good plan because it allows programs to be much more functional, and I suspect it will eliminate malicious mischief. If, however, a program has an unintentional destructive bug, it will still cause problems.The Java approach is to prevent these problems from occurring, via the sandbox. The Java interpreter that lives on your local Web browser examines the applet for any untoward instructions as the applet is being loaded. In particular, the applet cannot write files to disk or erase files (one of the mainstays of viruses). Applets are generally considered to be safe, and since this is essential for reliable client/server systems, any bugs in the Java language that allow viruses are rapidly repaired. (It’s worth noting that the browser software actually enforces these security restrictions, and some browsers allow you to select different security levels to provide varying degrees of access to your system.)You might be skeptical of this rather draconian restriction against writing files to your local disk. For example, you may want to build a local database orsave data for later use offline. The initial vision seemed to be that eventually everyone would get online to do anything important, but that was soon seen to be impractical (although low-cost “Internet appliances” might someday satisfy the needs of a significant segment of users). The solution is the “signed applet” that uses public-key encryption to verify that an applet does indeed come from where it claims it does. A signed applet can still trash your disk, but the theory is that since you can now hold the applet creators accountable, they won’t do vicious things. Java provides a framework for digital signatures so that you will eventually be able to allow an applet to step outside the sandbox if necessary. Chapter 14 contains an example of how to sign an applet.In addition, Java Web Start is a relatively new way to easily distribute standalone programs that don’t need a web browser in which to run. This technology has the potential of solving many client side problems associated with running programs inside a browser. Web Start programs can either be signed, or they can ask the client for permission every time they are doing something potentially dangerous on the local system. Chapter 14 has a simple example and explanation of Java Web Start.Digital signatures have missed an important issue, which is the speed that people move around on the Internet. If you download a buggy program and it does something untoward, how long will it be before you discover the damage? It could be days or even weeks. By then, how will you track down the program that’s done it? And what good will it do you at that point?5.Internet vs. intranetThe Web is the most general solution to the client/server problem, so it makes sense to use the same technology to solve a subset of the problem, in particular the classic client/server problem within a company. Withtraditional client/server approaches you have the problem of multiple types of client computers, as well as the difficulty of installing new client software, both of which are handily solved with Web browsers and client-side programming. When Web technology is used for an information network that is restricted to a particular company, it is referred to as an intranet. Intranets provide much greater security than the Internet, since you can physically control access to the servers within your company. In terms of training, it seems that once people understand the general concept of a browser it’s much easier for them to deal with differences in the way pages and applets look, so the learning curve for new kinds of systems seems to be reduced.The security problem brings us to one of the divisions that seems to be automatically forming in the world of client-side programming. If your program is running on the Internet, you don’t know what platform it will be working under, and you want to be extra careful that you don’t disseminate buggy code. You need something cross-platform and secure, like a scripting language or Java.If you’re running on an intranet, you might have a different set of constraints. It’s not uncommon that your machines could all be Intel/Windows platforms. On an intranet, you’re responsible for the quality of your own code and can repair bug s when they’re discovered. In addition, you might already have a body of legacy code that you’ve been using in a more traditional client/server approach, whereby you must physically install client programs every time you do an upgrade. The time wasted in installing upgrades is the most compelling reason to move to browsers, because upgrades are invisible and automatic (Java Web Start is also a solution to this problem). If you are involved in such an intranet, the most sensible approach to take is the shortest path that allowsyou to use your existing code base, rather than trying to recode your programs in a new language.When faced with this bewildering array of solutions to the client-side programming problem, the best plan of attack is a cost-benefit analysis. Consider the constraints of your problem and what would be the shortest path to your solution. Since client-side programming is still programming, it’s always a good idea to take the fastest development approach for your particular situation. This is an aggressive stance to prepare for inevitable encounters with the problems of program development.Server-side programmingThis whole discussion has ignored the issue of server-side programming. What happens when you make a request of a server? Most of the time the request is simply “send me this file.” Your browser then interprets the file in some appropriate fashion: as an HTML page, a graphic image, a Java applet, a script program, etc. A more complicated request to a server generally involves a database transaction. A common scenario involves a request for a complex database search, which the server then formats into an HTML page and sends to you as the result. (Of course, if the client has more intelligence via Java or a scripting language, the raw data can be sent and formatted at the client end, which will be faster and less load on the server.) Or you might want to register your name in a database when you join a group or place an order, which will involve changes to that database. These database requests must be processed via some code on the server side, which is generally referred to as server-side programming. Traditionally, server-side programming has been performed using Perl, Python, C++, or some other language, to create CGI programs, but more sophisticated systems have been appearing. These include Java-basedWeb servers that allow you to perform all your server-side programming in Java by writing what are called servlets. Servlets and their offspring, JSPs, are two of the most compelling reasons that companies who develop Web sites are moving to Java, especially because they eliminate the problems of dealing with differently-abled browsers (these topics are covered in Thinking in Enterprise Java)Online shoppingOnline shopping is the process whereby consumers directly buy goods or services from a seller in real-time, without an intermediary service, over the Internet. It is a form of electronic commerce. An online shop, eshop, e-store, internet shop, webshop, webstore, online store, or virtual store evokes the physical analogy of buying products or services at a bricks-and-mortar retailer or in a shopping mall. The process is called Business-to-Consumer (B2C) online shopping. When a business buys from another business it is called Business-to-Business (B2B) online shopping.HistoryIn 1990 Tim Berners-Lee created the first World Wide Web server and browser. It opened for commercial use in 1991. In 1994 other advances took place, such as online banking and the opening of an online pizza shop by Pizza Hut. During that same year, Netscape introduced SSL encryption of data transferred online, which has become essential for secure online shopping. Also in 1994 the German company Intershop introduced its first online shopping system. In 1995 Amazon launched its online shopping site, and in 1996 eBay appeared.CustomersIn recent years, online shopping has become popular; however, it still caters to the middle and upper class. In order to shop online, one must be able to have access to a computer, a bank account and a debit card. Shopping has evolved with the growth of technology. According to research found in the Journal of Electronic Commerce, if one focuses on the demographic characteristics of the in-home shopper, in general, the higher the level of education, income, and occupation of the head of the household, the more favourable the perception of non-store shopping.Online shopping widened the target audience to men and women of themiddle class. At first, the main users of online shopping were young men with a high level of income and a university education. This profile is changing. For example, in USA in the early years of Internet there were very few women users, but by 2001 women were 52.8% of the online population.PaymentOnline shoppers commonly use credit card to make payments, however some systems enable users to create accounts and pay by alternative means, such as: •Billing to mobile phones and landlines•Cash on delivery (C.O.D., offered by very few online stores)•Check•Debit card•Direct debit in some countries•Electronic money of various types•Gift cards•Postal money order•Wire transfer/delivery on paymentDesignWhy does electronic shopping exist? For customers it is not only because of the high level of convenience, but also because of the broader selection; competitive pricing and greater access to information. For organizations it increases their customer value and the building of sustainable capabilities, next to the increased profits.中文翻译Java和因特网既然Java不过另一种类型的程序设计语言，大家可能会奇怪它为什么值得如此重视，为什么还有这么多的人认为它是计算机程序设计的一个里程碑呢？如果您来自一个传统的程序设计背景，那么答案在刚开始的时候并不是很明显。
商品销售管理系统外文翻译(译文)
河北师范大学本科毕业论文外文翻译商品销售系统的设计与实现院（系、部）名称：数学与信息科技学院专业名称：科学与技术****：***学生学号：**************：***2013年03月05日河北科技师范学院教务处1 引言校园在线商品销售系统指的是将超市和网络相结合，通过互联网作为展示平台，线上订购，下线配送的一种商业运营模式。
网上超市的兴起使网上购物成为时下火热流行的购物方式。
现今，大学校园内二手货市场交易频繁，交易品是学生学习生活常用物品。
在广告宣传和交易方式多为告示张贴、摆摊设位等传统方式，不能及时有效地将买卖信息在学生间传递。
以校园局域网为载体，给在校学生提供一个交流沟通的平台，可将传统的二手交易与网上购物系统相结合，构建一个“学生网上购物系统”。
促进校园内二手货信息的快速流通，同时为学生开办针对校园内的小规模网店提供渠道。
2 功能描述系统结构分为三个部分，即用户购买管理子系统、用户出卖管理子系统以及后台管理系统。
购买管理系统以购物者在购物所发生的各种行为为基础设计，包括用户登录、商品展示、商品查询、订单功能及客户信息收集等[2]；出卖管理系统从卖方角度出发，进行商品信息的添加、发布和修改、定单信息回馈、商品推荐、留言回复等管理工作；后台管理则是对卖方提供的商品信息和买方的购物信息进行管理。
本系统最大的特点是出卖商品和购买商品的用户都是校内学生，学生只用通过学号注册，成为用户后既可以作为卖方，登记上传自己要卖的物品信息；也可以成为买方，浏览系统首页，搜索自己要买的物品，为校内二手商品的流通提供一个便捷的渠道。
3 系统设计3.1 业务流程业务流程分为两个部分：第一部分为，注册登录经身份验证后，用户进入系统页，挑选商品，点击购买放入购物车。
选购完所需商品，点击页面“查看购物车”或“收银台”，检查购物车里面的商品信息，核实商品数量，输入收货人信息，最后确认，订单提交成功。
第二部分为，登录后点击进入用户个人主页，在主页中进行商品添加和删除，回复留言，处理订单。
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商城购物系统设计中英文对照外文翻译文献Abstract: Servlet programs run on the server side, ___ CGI-like technologies, Java Servlet has higher efficiency, easier to use, more powerful ns, better portability, and more cost savings.Keywords: ___, Servlet, HTTP service1.1 n of ServletServlets are Java programs that run on web or n servers. It is a middleware that connects requests from web browsers or other HTTP client programs and databases or ns on HTTP servers. The work of the servlet is to perform the tasks of the Simeon, as shown in Figure 1.1.Figure 1.1 The role of web middleware(1) Read explicit data ______ by end users in HTML forms on the page. However, data may also come from applets or custom HTTP client programs. (2) Read implicit request data sent by the browserFigure 1.1 shows a single arrow from the client to the web server, but in fact, there are two types of data transmitted from the client to the web server, which are explicit data entered by the user in the form and background HTTP n. Both types of data are important. HTTP n includes cookies, media types recognized by browsers, ___.(3) Generate resultsThis process may require accessing a database, performing RMI or EJB calls, calling web services, or directly calculating the corresponding response. The actual data may be stored in a nal database. The database may not understand HTTP or may not be able to return results in HTML form, so web browsers ___ with the database. Even if it can do this, for security reasons, we do not want it to do so. Similar ___, we need the web middleware to extract input data from the HTTP stream, communicate with the n, and embed the results into the document.(4) ___) to usersThis document can be sent in us formats, including text (HTML or XML), binary (GIF graphics), ___ underlying formats, such as gzip. However, HTML is the most commonly used formatso far, so one of the important tasks of Servlet and JSP is to wrap the results in HTML.(5) Send implicit HTTP response data to users总之，动态构建网页可以根据具体情况灵活地生成页面，从而满足客户的需求。
使用servlet相比传统CGI技术，更加便利。
传统CGI技术需要将CGI程序编写为可执行文件并将其放置在服务器上，这样就需要进行一系列的配置和管理。
而使用servlet，只需要将Java类文件放置在服务器上即可。
这种方式更加简单，也更加灵活，因为Java类文件可以在不同的服务器上运行，而不需要进行重新编译或安装。
3、功能强大servlet的功能非常强大，可以处理各种类型的请求，包括GET、POST、PUT、DELETE等。
此外，servlet还可以处理文件上传、会话管理、安全验证等各种任务。
通过使用servlet，可以简化服务器端的开发工作，同时提高应用程序的可靠性和可扩展性。
4、易于移植由于Java是一种跨平台的语言，因此使用servlet可以轻松地将应用程序移植到不同的操作系统和服务器上。
这种方式可以降低开发和维护成本，并且可以更快地将应用程序部署到生产环境中。
5、安全性高servlet的安全性非常高，可以通过许多机制来保护应用程序和服务器。
例如，servlet可以使用HTTPS协议来加密数据传输，可以使用数字证书来验证客户端身份，可以使用访问控制列表来限制对应用程序的访问等。
这些机制可以提高服务器和应用程序的安全性。
6、成本低廉相比传统CGI技术，使用servlet的成本更低。
这是因为servlet不需要启动新的进程或载入多个实例，从而减少了服务器的负载和内存需求。
此外，由于Java是一种开源的语言，因此使用servlet也可以避免使用商业软件所带来的高额成本。
价格和可移植性在某种程度上是相互关联的。
例如，Marty记录了所有通过电子邮件向他发送问题的读者的所在国。
印度接近列表的顶端，可能仅次于美国。
Marty曾在马尼拉讲授过JSP和Servlet培训课程，那里对Servlet和JSP技术抱有很大的兴趣。
总之，servlet和JSP技术已经成为Web应用程序开发的主流，它们的优势在于灵活性、可移植性和安全性。
对于印度和菲律宾等国家的软件开发人员来说，这些优势尤为重要。
当然，仅仅因为技术流行并不意味着其优越性。
有许多___的例子可以证明这一点。
然而，我们的立场是：服务器端Java并不是一项新的、未经证实的技术。
Finally, ___ results based on the n they have gathered. This can include performing complex ns, retrieving data from adatabase, or ___ on the server. By serving as a middle layer een clients and servers, servlets play a critical role in the ___.Finally, the implicit HTTP response data must be sent to the client. This includes n such as the status code, headers, and cookies. This data is automatically generated by the web server and sent along with the explicit data to the client.2．___3．Real-timeupdates4．cedmaintenancecosts5．___In summary, dynamic web pages provide a more personalized, interactive, and ___ for users. They allow for real-time updates, n of content, and ___. While pre-built static pages may suffice for some requests, dynamic pages are essential for many modern web ns.___ to access that data. This can be done through APIs or other means of connecting to the data source. It is ___ is secure and that user data is protected when accessing these sources.the code is loaded into memory only once, and each request is handled by a new instance of the servlet class.2. Easier to UseUnlike nal CGI, servlets can be developed using standard Java development tools, such as Eclipse or NetBeans. This makes it easier for developers to write, test, and debug their code. nally, servlets can be packaged into a single WAR (Web n Archive) file, ___.3. More PowerfulServlets have access to the entire Java API, which includes powerful features such as multithreading, orking, ___ to create complex web ns that can handle large amounts of traffic and data.4. More PortableBecause servlets are written in Java, they can run on any platform that supports the Java Virtual Machine (JVM). This includes Windows, Linux, and Mac OS X, among others. This makes it ___ systems.5. Safer___, ___ to run under a specific user account, ___.6. CheaperIn summary, ___ nal CGI, including increased efficiency, ease of use, power, portability, safety, and cost savings. While servlets can be used in a variety of server types, we will focus on HTTP servlets in this n.___-side programming capabilities. They can access the full range of Java APIs, including database connectivity, XML parsing, and ork socket programming. This makes it possible to create complex and dynamic web ns that can handle large amounts of data and perform complex processing tasks. In contrast, CGI programs are ___ and cannot access the full range of system resources available to the server. nally, because servlets are written in Java, they are platform-independent and can run on any server that supports the Java Virtual Machine. This makes it easy to deploy servlet-based ns across a wide range of systems without having to ___.However, with servlets and JSP, they could start with a free server like Apache Tomcat (either standalone, embedded in the regular Apache web server, or embedded in Microsoft IIS). Once the project starts to gain momentum, they could move to a more sophisticated server like WebLogic or WebSphere.One of the main ___. This can lead to security ___ SQL n and Cross-site Scripting (XSS). On the other hand, Java Servlets, JSP, and EJBs ___ the Java Virtual Machine (JVM), which provides built-in security features such as memory ___, JavaEE servers like Tomcat and WebLogic have built-in security ___, n, ___'s needs.In contrast, servlets do not suffer from either of these problems. Even if a servlet executes a system call (e.g., withRuntime.exec or JNI) to invoke a program on the local operating system, it does not use a shell to do so. nally, ___ features are a central part of the Java programming language.。