Upload file using Web Service in Web Dynpro Java Application
webservice contentis is not allowed in prolog
webservice contentis is not allowed inprolog近些年来，随着互联网技术的不断发展，Web服务已成为许多企业最为关注的技术之一。
然而，当在使用Web服务过程中出现“Webservice contentis is not allowed in prolog”错误时，许多人可能会感到困惑和不知所措。
在此篇文章中，我将阐述如何解决此类问题。
1.了解问题原因首先，我们需要了解这个错误是什么意思。
当我们的Web服务返回XML响应时，这个错误表示一个或多个不正确的字符被插入到XML文档的开头，导致XML文档无法解析。
这些不正确的字符可能是空格、回车或其他不可见的字符。
因此，我们需要找到并删除这些字符才能解决问题。
2.检查XML响应内容接下来，我们需要检查我们的XML响应内容。
我们可以使用我们的Web浏览器来查看我们的响应内容，以确定XML文档的开头是否包含任何不正确的字符。
如果我们发现任何不正确的字符，我们应该尝试将它们删除，然后再次测试我们的Web服务来查看我们是否已解决问题。
如果我们仍然遇到同样的错误，则需要继续按照下面的步骤进行操作。
3.查看Web服务配置文件我们需要检查我们的Web服务配置文件。
在此文件中，我们可以查看有关我们的Web服务如何处理XML响应的信息。
我们应该验证我们的Web服务配置是否正确，并且我们是否正确地编写了我们的XML响应。
如果我们发现任何错误，我们应该进行更改，并重新启动我们的Web服务。
4.检查XML文档版本我们还可以检查XML文档版本。
当我们的XML文档使用较早版本的XML格式时，我们可能会遇到此类错误。
在这种情况下，我们需要使用较新的XML格式版本，以保证XML文档可以正常解析。
5.使用XML解析器解析响应最后，我们可以使用XML解析器解析我们的响应。
如果我们仍然无法解决这个问题，我们可以尝试使用可用的XML解析器，比如DOM或SAX解析器。
视频网站设计毕业论文
视频网站设计毕业论文论文题目基于J2EE的大型视频影音系统的设计与实现姓名***学院东北大学东软信息学院专业计算机科学与技术指导教师** 讲师备注2010 年6 月4日基于J2EE的大型视频影音系统的设计与实现作者姓名：***指导教师： *** 讲师单位名称：计算机科学与技术系专业名称：软件工程东北大学东软信息学院2010年6月Large Video Audio System Based on J2EE Design And ImplementationNortheastern University Neusoft Institute of InformationJune 2010毕业设计（论文）任务书基于J2EE的大型视频影音系统的设计与实现摘要在众多的Web2.0应用和服务中，视频分享脱颖而出成为最新的爆发点。
视频分享网站为用户提供视频上传、播放和分享服务，操作简单，传播方便，加上视频本身能带来丰富的用户体验，视频分享网站受到广泛欢迎。
我们对系统体系结构进行分析，对C/S、B/S两种结构进行了比较，根据系统目标的设计需求，从适用性、移植性等因素出发，选用B/S作为本系统的开发平台，服务器采用tomcat 6.0，数据库采用MySQL，使用Jsp开发。
本文讨论了数据库创建；数据的增加、删除、修改、查询；数据的统计、归类等问题。
在系统中设计了网络通信功能，为用户观看视频、视频留言，管理员管理视频留言提供了保障；系统还设计了文件上传、下载功能，为用户上传视频、上传头像提供了方便；系统为用户设计了相关查询，用户可以查询自己感兴趣的视频。
对于视频分享网站来说，与网民规模的持续增长相比，宽带用户的增长具有更加重要的意义，因为宽带上网显然更加利于用户在线欣赏视频内容。
宽带用户数量的增长速度高于同期网民数量的增长速度，因此网民中宽带用户比例不断增加，最新的统计数据显示这个比例已经超过75%。
宽带日益普及对于视频分享网站的发展无疑具有至关重要的意义。
大工17秋《专业英语（计算机英语）》在线测试123满分
⼤⼯17秋《专业英语（计算机英语）》在线测试123满分⼤⼯17秋《专业英语（计算机英语）》在线测试1需要QQ2959415429 微信 open4511⼀、单选题 (共 20 道试题,共 80 分)1.（）, difference between the lowest and highest frequencies transmitted in a particular channel or system.A.AmplitudeB.BandwidthC.Bridgework2.( ) also called a Personal computer or PC, defines a computer, which is designed for general use by a single person. It can perform all of its inputting, processing, outputting, and storage activities by itself.A.MicrocomputerB.SupercomputerC.MainframeD.Minicomputer3.( ) programs are used to recover deleted or damaged(corrupted) files.A.Data recoveryB.System callC.System crashD.System software4.( ):In encryption, a two-key system in which the key used to lock data is made public, so everyone can "lock".A second private key is used to unlock or decrypt.A.Asymmetric keyB.Symmetric keyC.Coputer virusD.Digital signatures5.( ) refers to the physical equipment that can perform the basic functions contained within the data processing cycle.A.SoftwareB.HardwareC.MemoryD.CPU6.Which one is a word processing and text editing tool?A.PhotoshopB.WordC.Extreme 3DD.Premiere7.( ) are the peripherals that allow users to enter data, programs, commands, and user responses into a computer and transform them into a suitable form for processing.A.RAMB.ROMC.Input devicesD.Memory8.The first computers used （） for circuitry and magnetic drums for memory, and were often enormous, taking up entire rooms.A.vacuum tubesB.transistorsC.integrated circuitsD.microprocessors9.（） performs arithmetic, comparison, and logic operations. It is one part of the CPU.A.RAMB.ROMC.CPUD.ALU10.( )(Pravate Key),in encryption, one key is used to both lock and unlock data. Compare with public key.A.Asymmetric keyB.Symmetric keyC.Coputer virusD.Digital signatures11.Processing is done inside the computer in an area called the ( ).A.input devicesB.output devicesC.system unitD.central processing unit12.A ( ) can be written to once. After that they can be read many times without deterioration but cannot be written on or erased.A.CD-RB.CD-ROMC.CD-RWD.DVD13.( ) provides reliable, full-duplex connections and reliable service by ensuring that data is resubmitted when transmission results in an error.A.TCPB.ARPC.UDPD.IP14.( ) is an outline of the logic of the program you will write.A.Program flowchartsB.Logic structuresC.PseudocodeD.Design15.Linux is an operating system similar to ( ) that is becoming more and more popular.A.Windows 98B.Windows 2000C.Windows XPD.Unix16.( ) shorts for Waveform. It is the audio file format of Microsoft, and it is the waveform sound file format in Windows defined by Microsoft. It is the most common file format of digital sound derived from sampling.A.MIDIB.WAVC.RAD.Audio17.In a ( ) network, all microcomputers and other communication devices are connected to a continuous loop.A.busB.starC.treeD.ring18.（） have more storage capacity than diskettes and also offer faster access to the data they hold.A.Hard disksB.Optical disksC.Zip diskD.CD19.In 1947 three scientists, John Bardeen, William Shockley, and Walter Brattain working at( )invented the transistor computer.A.BaiduB.MicrosoftC.AT&T's Bell LabsD.Yahoo20.( ), to send files from a user's microcomputer to another computer. Compare with download.A.UploadB.TelecommutingC.HypertextD.Online service⼆、判断题 (共 10 道试题,共 20 分)1.Mouse belongs to output.（）A.错误B.正确2.CPU stands for Central Processing Unit. It performs the system's calculating and processing.A.错误B.正确N, communications network that covers a wide geographical area, such as a state or a country.( )A.错误B.正确4.WWW stands for "World Wide Web"; it is the large global collection of Internet servers which support hypertext documents coded in HTML, and transferred via HTTP.A.错误B.正确5.The transistor computer did not last as long as the vacuum tube computer lasted, but it was less important in the advancement of computer technology.A.错误B.正确6.Object Oriented Programming(OOP) is a programming method that combines data and the instructions for processing that data into a self-sufficient "object" that can be used in other programs.（）A.错误B.正确7.Windows versions before Windows 95 rely on DOS as the operating system.（）A.错误B.正确 is an E-mail address.A.错误B.正确9.An online payment is a monetary transcation from the customer to the vendor over the Internet by credit card, digital cash, e-wallets, and smart cards.A.错误B.正确10.View shortcut menus by right-clicking with the mouse.（）A.错误B.正确⼤⼯17秋《专业英语（计算机英语）》在线测试2⼀、单选题 (共 20 道试题,共 80 分)1.The two components of the CPU are connected by a kind of electronic roadway called a(an) （）.BB.busC.portD.keyboard2.The operation system ( ).A.manages the disks and filesB.manages the computer's resourcesC.manages the computer's memoryD.All of the above3.（） ,also known as service programs, perform specific tasks related to managing computer resources.A.Utilities programsB.System softwareC.Operating systemD.none of the above4.（）:In encryption, a two-key system in which the key used to lock data is made public, so everyone can "lock".A second private key is used to unlock or decrypt.A.Asymmetric keyB.Symmetric keyC.Coputer virusD.Digital signatures5.A （） port is an interface that connects devices by transferring more than one bit at a time.A.serialB.parallelBD.none of the above6.( ), software used in corporate networks (intranets and extranets) to prevent unauthorized people from accessing the network.A.FirewallB.ModemC.HypertextD.TCP7.The common input devices are the （）and the keyboard.A.printerB.speakerC.monitorD.mouse8.A ( ) channel allows simultaneous message exchange in both directions.It really consists of two simplex channels, a forward channel and a reverse channel,linking the same points.A.half-duplexB.full-duplexC.simplexD.none of the above9.（）, the process of compressing a file such that,after being compressed and decompressed, it matches its original format bit for bit.A.Lossy compressionB.Lossless compressionC.BitmapD.Vector image10.( ) have more storage capacity than diskettes and also offer faster access to the data they hold.A.Hard disksB.Optical disksC.Zip diskD.CD11.The ( ) is automatically loaded into RAM soon after you turn on, or "boot" the computer.A.application softwareB.operating softwareC.shellpiler12.The ( ) is a worldwide system of computer networks in which any one computer can get information from/or talk to any other connected computer using the TCP/IP protocols.A.InternetB.WWWC.ARPANETD.ISP13.A（）is a cable which is capable of carrying signals representing data from one place to another.A.busB.byteC.bitD.disk14.A backup program ( ).A.makes a copy of files you selectB.returns you to the previous programC.undoes the last change you madeD.None of the above15.A ( ) is an electronic device that operates under the control of instructions stored in its own memory, which can according to specified rules, produce results,and store the results for future use.puterB.CPUC.input deviceD.output device16.The fourth generation computers can be characterized by both the jump to monolithic integrated circuits and the invention of( ).A.microprocessorB.transistorC.chipD.circuit17.We abbreviate Virtual Private Networks to ( ).A.NICB.VPNC.HUBD.MODEM18.The technical development that marks the third generation of computers is the use of () in computers.A.vacuum tubesB.integrated circuitsC.transistorsD.virtual memory19.( ), interface that enables dissimilar networks to communicate with one another.A.GatewayB.BridgeC.BandwidthD.none of the above20.ERP is ( ).A.Enterprise resource planning softwareB.Enterprise Application IntegrationC.Electronic Application IntegrationD.None of the above.⼆、判断题 (共 10 道试题,共 20 分)1.Output devices are peripherals that allow users to enter data, programs, commands, and user responses into a computer and transform them into a suitable form for processing.( )A.错误B.正确2.CPU stands for Central Processing Unit. It performs the system's calculating and processing.A.错误B.正确3.An ISP is a company that provides access to the Internet.A.错误B.正确4.Memory also called main memory, primary storage, RAM, is an internal storage area in the computer, where data and programs designed for immediate processing are held.A.错误B.正确5.Device drivers are specialized programs designed to allow particular input or output devices to communicate with the rest of the computer system.( )A.错误B.正确6.A compilier is software that looks at an entire high-level program before translating it into machine language.A.错误B.正确7.A location in RAM memory is accessed by its address.（）A.错误B.正确8.The fourth generation computers can be characterized by both the jump to monolithic integrated circuits and the invention of microprocessor.（）A.错误B.正确9.Software also called a program, is the series of computer language coded instructions that tells the computer how to perform tasks.A.错误B.正确10.Java is a compiled object-oriented programming language used to write applets.A.错误B.正确⼤⼯17秋《专业英语（计算机英语）》在线测试3-0012⼀、单选题 (共 20 道试题,共 80 分)1.An ( ) is a monetary transcation from the customer to the vendor over the Internet by credit card, digital cash, e-wallets, and smart cards.A.Electronic CommerceB.Credit cardC.Online paymentD.none of the above2.The technical development that marks the third generation of computers is the use of () in computers.A.vacuum tubesB.integrated circuitsC.transistorsD.virtual memory3.( ), the process of changing plaintext data into enciphered text through an algorithm.B.EncryptionC.AuthenticateD.Hacker4.( ), also called communications network; a system of interconnected computers, telephones, or other communications devices.A.ProtocolB.NodeC.Packetwork5.Processing is done inside the computer in an area called the ( ).A.input devicesB.output devicesC.system unitD.central processing unit6.A （）,also called a silicon chip or semiconductor,is a small piece of silicon that contains thousands of microminiature electronic circuit components, mainly transistors.A.busB.chipC.portD.keyboard7.（） is the electronic device that interprets and carries out the basic instructions that operate the computer.A.ProcessorB.hardwareC.memoryD.CPU8.( ) also called a Personal computer or PC, defines a computer, which is designed for general use by a single person. It can perform all of its inputting, processing, outputting, and storage activities by itself.A.MicrocomputerB.SupercomputerC.MainframeD.Minicomputer9.The process of translating instructions into commands is called ( ).A.decodingB.registerC.digitalD.port10.A （）is a communication device that enables computers to communicate via telephone lines or cable.A.modemB.hardwareC.software11.( ) is a way of transferring files over the Internet from one computer to another.A.InternetB.FTPC.E-mailD.ISP12.（）(Reduced Instruction Set Computer) refers to processors that support fewer instructions than CISC chips. The reduced number of instructions enables them to execute instructions faster.A.CISCB.RISCC.RAMD.ROM13.The first computers used （） for circuitry and magnetic drums for memory, and were often enormous, taking up entire rooms.A.vacuum tubesB.transistorsC.integrated circuitsD.microprocessors14.（） (Joint Photographic Experts Group), standard for compressing continuous-tone still pictures. It does not handle black-and-white images, nor does it handle motion picture compression.A.JPEGB.MPEGC.MIDID.none of the above15.（） controls how you enter data or instructions and how information is displayed on the computer screen.er interfacenguage translatorsC.Utilities programsD.System software16.The standard protocol used for sending Internet e-mail is called ( ). It works in conjunction with POP servers.A.SMTPB.WWWC.TCPD.UDP17.The common input devices are the ( ) and the ( ).A.keyboard,printerB.keyboard,microphoneC.mouse,monitorD.mouse,keyboard18.（） will provoke radical changes in the teaching process during the coming decades, particularly as smart students discover they can go beyond the limits of traditional teaching methods.A.AnimationB.WAVC.MultimediaD.none of the above19.( ) is an outline of the logic of the program you will write.A.Program flowchartsB.Logic structuresC.PseudocodeD.Design20.A ( ) converts the programmer's procedural language program, called the source code, into a machine language code, called the object code.pilerB.AssemblerC.InterpreterD.Code generator⼆、判断题 (共 10 道试题,共 20 分)1.A bus is a cable which is capable of carrying signals representing data from one place to another.( )A.错误B.正确2.Application software consists of programs that perform specific tasks for users.( )A.错误B.正确3.The fourth generation computers can be characterized by both the jump to monolithic integrated circuits and the invention of microprocessor.（）A.错误B.正确4.The ENIAC used thousands of vacuum tubes,which took up a lot of space and gave off a great deal of heat just like light bulbs do.A.错误B.正确5.Asymmetric key(Public Key),in encryption, one key is used to both lock and unlock data.( )A.错误B.正确6.CPU is the soul of a computer.A.错误B.正确7.View shortcut menus by right-clicking with the mouse.（）A.错误B.正确8.ERP is Enterprise resource planning software.A.错误B.正确9.Device drivers are specialized programs designed to allow particular input or output devices to communicate with the rest of the computer system.( )A.错误B.正确10.A leased line is a line rented from a telephone company for the exclusive use of a customer to access Internet.( )A.错误B.正确。
使用WCF上传文件
在WCF没出现之前，我一直使用用WebService来上传文件，我不知道别人为什么要这么做，因为我们的文件服务器和网站后台和网站前台都不在同一个机器，操作人员觉得用FTP传文件太麻烦，我就做一个专门用来上传文件的WebService,把这个WebService部署在文件服务器上，然后在网站后台调用这个WebService，把网站后台页面上传上来的文件转化为字节流传给WebService，然后WebService把这个字节流保存文件到一个只允许静态页面的网站（静态网站可以防止一些脚本木马）。
WebService来上传文件存在的问题是效率不高，而且不能传输大数据量的文件，当然你可以用Wse中的MTOM来传输大文件，有了WCF就好多了，通过使用WCF传递Stream 对象来传递大数据文件，但有一些限制：1、只有BasicHttpBinding、NetTcpBinding 和NetNamedPipeBinding 支持传送流数据。
2、流数据类型必须是可序列化的Stream 或MemoryStream。
3、传递时消息体(Message Body)中不能包含其他数据。
4、TransferMode的限制和MaxReceivedMessageSize的限制等。
下面具体实现：新建一个WCFService，接口文件的代码如下：[ServiceContract]public interface IUpLoadService{[OperationContract(Action = "UploadFile", IsOneWay = true)]void UploadFile(FileUploadMessage request);}[MessageContract]public class FileUploadMessage{[MessageHeader(MustUnderstand = true)]public string SavePath;[MessageHeader(MustUnderstand = true)]public string FileName;[MessageBodyMember(Order = 1)]public Stream FileData;}定义FileUploadMessage类的目的是因为第三个限制，要不然文件名和存放路径就没办法传递给WCF了，根据第二个限制，文件数据是用System.IO.Stream来传递的接口方法只有一个，就是上传文件，注意方法参数是FileUploadMessage接口实现类文件的代码如下：public class UpLoadService : IUpLoadService{public void UploadFile(FileUploadMessage request){string uploadFolder = @"C:\kkk\";string savaPath = request.SavePath;string dateString = DateTime.Now.ToShortDateString() + @"\";string fileName = request.FileName;Stream sourceStream = request.FileData;FileStream targetStream = null;if (!sourceStream.CanRead){throw new Exception("数据流不可读!");}if (savaPath == null) savaPath = @"Photo\";if (!savaPath.EndsWith("\\")) savaPath += "\\";uploadFolder = uploadFolder + savaPath + dateString;if (!Directory.Exists(uploadFolder)){Directory.CreateDirectory(uploadFolder);}string filePath = bine(uploadFolder, fileName);using (targetStream = new FileStream(filePath, FileMode.Create, File Access.Write, FileShare.None)){//read from the input stream in 4K chunks//and save to output streamconst int bufferLen = 4096;byte[] buffer = new byte[bufferLen];int count = 0;while ((count = sourceStream.Read(buffer, 0, bufferLen)) > 0) {targetStream.Write(buffer, 0, count);}targetStream.Close();sourceStream.Close();}}}实现的功能是到指定目录下按照日期进行目录划分，然后以传过来的文件名保存文件。
VS2010上传文件控件fileupload使用方法
本文导读：中上传文件的简单方法是使用fileupload上传控件，该控件让用户更容易地浏览和选择用于上传的文件，它包含一个浏览按钮和用于输入文件名的文本框。
只要用户在文本框中输入了完全限定的文件名，无论是直接输入或通过浏览按钮选择，都可以调用FileUpload的SaveAs方法保存到磁盘上。
FileUpload控件显示一个文本框控件和一个浏览按钮，使用户可以选择客户端上的文件并将它上载到Web 服务器。
用户通过在控件的文本框中输入本地计算机上文件的完整路径（例如，C:\MyFiles\test。
txt）来指定要上载的文件。
用户也可以通过单击“浏览”按钮，然后在“选择文件”对话框中定位文件来选择文件。
用户选择要上载的文件后，FileUpload控件不会自动将该文件保存到服务器。
您必须显式提供一个控件或机制，使用户能提交指定的文件。
例如，可以提供一个按钮，用户单击它即可上载文件。
为保存指定文件所写的代码应调用SaveAs方法，该方法将文件内容保存到服务器上的指定路径。
通常，在引发回发到服务器的事件的事件处理方法中调用SaveAs方法。
在文件上传的过程中，文件数据作为页面请求的一部分，上传并缓存到服务器的内存中，然后再写入服务器的物理硬盘中。
FileUpload控件常用的几个公开的只读属性HttpPostedFile属性有三个方面需要注意：1.确认是否包含文件在调用SaveAs方法将文件保存到服务器之前，使用HasFile属性来验证FileUpload控件确实包含文件。
若HasFile返回true，则调用SaveAs方法。
如果它返回false，则向用户显示消息，指示控件不包含文件。
不要通过检查PostedFile属性来确定要上载的文件是否存在，因为默认情况下该属性包含0 字节。
因此，即使FileUpload控件为空，PostedFile属性仍返回一个非空值。
2.文件上传大小限制默认情况下，上传文件大小限制为4096 KB (4 MB)。
GridTime 3000 GNSS Time Server System 系统发布说明书
GridTime™ 3000 GNSS Time Server System Release Notes IntroductionThis System Release Note (SRN) provides information about the GridTime™ 3000 GNSS Time Server version1.0r1.0 (release version 1.0r1.0) released in November 2022. Release v1.0r1.0 is the official release for the GridTime 3000 v1.0r1.0.A user guide for this release (v1.0r1.0) is available along with this SRN.The software release is available at the Microchip Support web page.Table of Contents Introduction (1)1. Summary of Features (3)1.1. New Features in v1.0r1.0 (3)1.2. Known Issues (3)2. Upgrading the Firmware (14)2.1. Upgrading the Firmware (14)3. Contacting Technical Support (18)4. References (19)5. Revision History (20)The Microchip Website (21)Product Change Notification Service (21)Customer Support (21)Microchip Devices Code Protection Feature (21)Legal Notice (21)Trademarks (22)Quality Management System (23)Worldwide Sales and Service (24)1. Summary of FeaturesThis section describes the new features and known issues included with this software release notice.1.1 New Features in v1.0r1.0The following are the latest features released in v1.0r1.0 for GridTime 3000:•Authentication–Support for RFC 2865: Remote Authentication Dial-In User Service (RADIUS)–Support for RFC 4511: Lightweight Directory Access Protocol (LDAP)1.2 Known IssuesThe following tables list the known issues in v1.0r1.0, their operating constraints, and workarounds.1.2.1 Additional Device FunctionsThe following table lists the known issues with the general function of the device, including any issues related to output suppression, daylight savings rollover, licenses, or expansion oscillator usage.Table 1-1. Known Issues: General Functions of the Device1.2.2 Clock Management Tool (CMT)The following table lists the known issues with the clock management tool, including any field validation errors and issues with any buttons or configurable options.Table 1-2. Known Issues: CMT1.2.3 AuthenticationThe following table lists the known issues with the authentication of users through a local or external authentication provider and any issues with access control.Table 1-3. Known Issues: Authentication1.2.4 Simple Network Management Protocol (SNMP) and SyslogThe following table lists the known issues with SNMP including any issues with SNMP authentication, SNMP traps, or SNMP configuration.Table 1-4. Known Issues: SNMP1.2.5 IPv4 EthernetThe following table lists the known issues with the network ports including both the administrator and timing ports, their interfacing protocols, and behavior (DHCP, Link Local, ARP, Clans, and so on).Table 1-5. Known Issues: Network Ports1.2.6 Precision Time ProtocolThe following table lists the known issues with the precision time protocol input or output. Including all known issues with PTP profile implementation.Table 1-6. Known Issues: Precision Time Protocol Input or Output1.2.7 Network Time ProtocolThe following table lists the known issues with the network time protocol input and output implementation.Table 1-7. Known Issues: Network Time Protocol Input and Output1.2.8 Parallel Redundancy ProtocolThe following table lists the known issues with the parallel redundancy protocol implementation.Table 1-8. Known Issues: Parallel Redundancy Protocol Implementation1.2.9 T1/E1/J1The following table lists the known issues with T1/E1/J1 outputs.Table 1-9. Known Issues: T1/E1/J1 Outputs1.2.10 Fixed FrequencyThe following lists the known issues with the fixed frequency outputs.No issues found.1.2.11 DCLS IRIG-B and AM IRIG-BThe following table lists the known issues with DCLS IRIG-B or AM IRIG-B.Table 1-10. Known Issues: DCLS IRIG-B or AM IRIG-B1.2.12 Programmable Pulse OutputsThe following table lists the known issues with the programmable pulse outputs.Table 1-11. Known Issues: Programmable Pulse outputs1.2.13 DCF77 OutputNo Issues found.1.2.14 Serial StringThe following table lists the known issues with the RS232 and RS422 serial string outputs.Table 1-12. Known Issues: RS232 and RS422 Serial String Outputs1.2.15 AlarmsThe following table lists the known issues with the device alarm generation or conditions.Table 1-13. Known Issues: Device Alarm Generation or Conditions1.2.16 Global Navigation Satellite System (GNSS)No issues found.2. Upgrading the FirmwareThis section describes how to upgrade the GridTime 3000 firmware.2.1 Upgrading the FirmwareThis section describes how to upgrade the GridTime 3000's firmware using the CMT. The CMT is built into the device and can be accessed by navigating to either of the IP addresses on the LCD using a web browser.Note: Only an administrator user can upgrade the GridTime 3000's firmware.1.Log in to the CMT as an administrator user.2.Click the Settings icon.3.Click the Firmware icon to open the firmware window.4.Click CHOOSE FILE on the right pane to select the new firmware image.5.After selecting the firmware image from your local system, click on the image and click Open.device. The upload tracking percentage of the image to the device is shown.7.Once the percentage has reached 100%, an APPLY FIRMWARE UPDATE button appears. Click this button toupload the device's firmware.8.An INSTALLING PLEASE WAIT... icon appears. Then, the GridTime 3000 reboots.9.If the upgrade is successful, then the device shows the new firmware on its LCD during boot up and in thefirmware tab of the CMT, once you have logged out and then logged back in.If the firmware version remains the same, then this might indicate a potential upgrade failure. Retry the upgrade and if the upgrade failure persists, then contact technical support. For details, see 3. Contacting Technical Support.Contacting Technical Support 3. Contacting Technical SupportIf you encounter any difficulty in installing this firmware update or operating the product, contact Microchip Frequency and Time Division (FTD) Services and Support at:•USA Call Center:Including Americas, Asia and Pacific RimMicrosemi FTD Services and Support3870 N. First StreetSan Jose, CA 95134Toll-free in North-America: 1-888-367-7966Telephone: 408-428-7907Email: *****************************Internet: /en-us/products/synchronization-and-timing-systems•Europe, Middle East, Africa (EMEA) Call Center:Microsemi FTD Services and Support EMEAAltlaufstrasse 4283635 Hoehenkirchen-SiegertsbrunnGermanyTelephone: +49 700 3288 6435Fax: +49 8102 8961 533Email: ***************************** and ****************************•Australia and New ZealandTekron International LtdLevel 1, 47 The EsplanadeLower Hutt, 5022New ZealandTelephone: +64 566 7722Toll-free in Australia: 1 800 506 311email: *************************References 4. References•GridTime™ 3000 GNSS Time Server SRN (this document)•GridTime™ 3000 GNSS Time Server Installation Manual (DS00004572A)•GridTime™ 3000 SNMP MIBThis SRN and the User Guide are provided in PDF format. The SNMP MIB is provided as an ASCII text file.Note: To view and print PDFs, download Adobe Acrobat Reader from /reader/.Revision History 5. Revision HistoryThe revision history describes the changes that were implemented in the document. The changes are listed byrevision, starting with the most current publication.The Microchip WebsiteMicrochip provides online support via our website at /. This website is used to make files and information easily available to customers. Some of the content available includes:•Product Support – Data sheets and errata, application notes and sample programs, design resources, user’s guides and hardware support documents, latest software releases and archived software•General Technical Support – Frequently Asked Questions (FAQs), technical support requests, online discussion groups, Microchip design partner program member listing•Business of Microchip – Product selector and ordering guides, latest Microchip press releases, listing of seminars and events, listings of Microchip sales offices, distributors and factory representativesProduct Change Notification ServiceMicrochip’s product change notification service helps keep customers current on Microchip products. Subscribers will receive email notification whenever there are changes, updates, revisions or errata related to a specified product family or development tool of interest.To register, go to /pcn and follow the registration instructions.Customer SupportUsers of Microchip products can receive assistance through several channels:•Distributor or Representative•Local Sales Office•Embedded Solutions Engineer (ESE)•Technical SupportCustomers should contact their distributor, representative or ESE for support. Local sales offices are also available to help customers. A listing of sales offices and locations is included in this document.Technical support is available through the website at: /supportMicrochip Devices Code Protection FeatureNote the following details of the code protection feature on Microchip products:•Microchip products meet the specifications contained in their particular Microchip Data Sheet.•Microchip believes that its family of products is secure when used in the intended manner, within operating specifications, and under normal conditions.•Microchip values and aggressively protects its intellectual property rights. Attempts to breach the code protection features of Microchip product is strictly prohibited and may violate the Digital Millennium Copyright Act.•Neither Microchip nor any other semiconductor manufacturer can guarantee the security of its code. Code protection does not mean that we are guaranteeing the product is “unbreakable”. Code protection is constantly evolving. Microchip is committed to continuously improving the code protection features of our products. Legal NoticeThis publication and the information herein may be used only with Microchip products, including to design, test,and integrate Microchip products with your application. Use of this information in any other manner violates these terms. Information regarding device applications is provided only for your convenience and may be supersededby updates. It is your responsibility to ensure that your application meets with your specifications. Contact yourlocal Microchip sales office for additional support or, obtain additional support at /en-us/support/ design-help/client-support-services.THIS INFORMATION IS PROVIDED BY MICROCHIP "AS IS". MICROCHIP MAKES NO REPRESENTATIONSOR WARRANTIES OF ANY KIND WHETHER EXPRESS OR IMPLIED, WRITTEN OR ORAL, STATUTORYOR OTHERWISE, RELATED TO THE INFORMATION INCLUDING BUT NOT LIMITED TO ANY IMPLIED WARRANTIES OF NON-INFRINGEMENT, MERCHANTABILITY, AND FITNESS FOR A PARTICULAR PURPOSE, OR WARRANTIES RELATED TO ITS CONDITION, QUALITY, OR PERFORMANCE.IN NO EVENT WILL MICROCHIP BE LIABLE FOR ANY INDIRECT, SPECIAL, PUNITIVE, INCIDENTAL, OR CONSEQUENTIAL LOSS, DAMAGE, COST, OR EXPENSE OF ANY KIND WHATSOEVER RELATED TO THE INFORMATION OR ITS USE, HOWEVER CAUSED, EVEN IF MICROCHIP HAS BEEN ADVISED OF THE POSSIBILITY OR THE DAMAGES ARE FORESEEABLE. TO THE FULLEST EXTENT ALLOWED BY LAW, MICROCHIP'S TOTAL LIABILITY ON ALL CLAIMS IN ANY WAY RELATED TO THE INFORMATION OR ITS USE WILL NOT EXCEED THE AMOUNT OF FEES, IF ANY, THAT YOU HAVE PAID DIRECTLY TO MICROCHIP FOR THE INFORMATION.Use of Microchip devices in life support and/or safety applications is entirely at the buyer's risk, and the buyer agrees to defend, indemnify and hold harmless Microchip from any and all damages, claims, suits, or expenses resulting from such use. No licenses are conveyed, implicitly or otherwise, under any Microchip intellectual property rights unless otherwise stated.TrademarksThe Microchip name and logo, the Microchip logo, Adaptec, AnyRate, AVR, AVR logo, AVR Freaks, BesTime, BitCloud, CryptoMemory, CryptoRF, dsPIC, flexPWR, HELDO, IGLOO, JukeBlox, KeeLoq, Kleer, LANCheck, LinkMD, maXStylus, maXTouch, MediaLB, megaAVR, Microsemi, Microsemi logo, MOST, MOST logo, MPLAB, OptoLyzer, PIC, picoPower, PICSTART, PIC32 logo, PolarFire, Prochip Designer, QTouch, SAM-BA, SenGenuity, SpyNIC, SST, SST Logo, SuperFlash, Symmetricom, SyncServer, Tachyon, TimeSource, tinyAVR, UNI/O, Vectron, and XMEGA are registered trademarks of Microchip Technology Incorporated in the U.S.A. and other countries. AgileSwitch, APT, ClockWorks, The Embedded Control Solutions Company, EtherSynch, Flashtec, Hyper Speed Control, HyperLight Load, IntelliMOS, Libero, motorBench, mTouch, Powermite 3, Precision Edge, ProASIC, ProASIC Plus, ProASIC Plus logo, Quiet- Wire, SmartFusion, SyncWorld, Temux, TimeCesium, TimeHub, TimePictra, TimeProvider, TrueTime, WinPath, and ZL are registered trademarks of Microchip Technology Incorporated in the U.S.A.Adjacent Key Suppression, AKS, Analog-for-the-Digital Age, Any Capacitor, AnyIn, AnyOut, Augmented Switching, BlueSky, BodyCom, CodeGuard, CryptoAuthentication, CryptoAutomotive, CryptoCompanion, CryptoController, dsPICDEM, , Dynamic Average Matching, DAM, ECAN, Espresso T1S, EtherGREEN, GridTime, IdealBridge, In-Circuit Serial Programming, ICSP, INICnet, Intelligent Paralleling, Inter-Chip Connectivity, JitterBlocker, Knob-on-Display, maxCrypto, maxView, memBrain, Mindi, MiWi, MPASM, MPF, MPLAB Certified logo, MPLIB, MPLINK, MultiTRAK, NetDetach, NVM Express, NVMe, Omniscient Code Generation, PICDEM, , PICkit, PICtail, PowerSmart, PureSilicon, QMatrix, REAL ICE, Ripple Blocker, RTAX, RTG4, SAM-ICE, Serial Quad I/O, simpleMAP, SimpliPHY, SmartBuffer, SmartHLS, SMART-I.S., storClad, SQI, SuperSwitcher, SuperSwitcher II, Switchtec, SynchroPHY, Total Endurance, TSHARC, USBCheck, VariSense, VectorBlox, VeriPHY, ViewSpan, WiperLock, XpressConnect, and ZENA are trademarks of Microchip Technology Incorporated in theU.S.A. and other countries.SQTP is a service mark of Microchip Technology Incorporated in the U.S.A.The Adaptec logo, Frequency on Demand, Silicon Storage Technology, Symmcom, and Trusted Time are registered trademarks of Microchip Technology Inc. in other countries.GestIC is a registered trademark of Microchip Technology Germany II GmbH & Co. KG, a subsidiary of Microchip Technology Inc., in other countries.All other trademarks mentioned herein are property of their respective companies.© 2022, Microchip Technology Incorporated and its subsidiaries. All Rights Reserved.ISBN: 978-1-6683-1533-0Quality Management SystemFor information regarding Microchip’s Quality Management Systems, please visit /quality.Worldwide Sales and Service。
fileupload控件的用法 -回复
fileupload控件的用法-回复【fileupload控件的用法】是一个用于网页文件上传功能的控件，是开发人员经常使用的工具之一。
本文将一步一步回答有关fileupload控件的用法和使用指南。
第一步：了解fileupload控件的基本概念和作用fileupload控件是一种HTML元素，用于在网页上创建一个可供用户选择文件并上传的控件。
它允许用户通过浏览自己的计算机文件系统，从中选择一个或多个要上传的文件。
主要作用是方便用户将文件传输到服务器上，供网站后台进行处理和存储。
第二步：创建fileupload控件并添加到网页中在HTML代码中，使用<input type="file">标签创建一个fileupload控件，如下所示：<input type="file" name="uploadFile" id="uploadFile">其中，name属性用于指定控件的名称，id属性用于给控件指定一个唯一的标识符，供后续的JavaScript操作使用。
第三步：为fileupload控件添加事件处理程序通过JavaScript代码，可以为fileupload控件添加事件处理程序，以便在用户选择文件后执行相应的操作。
例如，可以为控件的onchange事件添加一个函数，当用户选择文件后自动触发该函数。
示例如下：document.getElementById("uploadFile").onchange = function() { 上传文件的操作}第四步：处理用户上传的文件在事件处理程序中，可以通过fileupload控件的value属性获取用户选择的文件路径。
如下所示：var filePath = document.getElementById("uploadFile").value;但需要注意的是，出于安全考虑，浏览器不允许JavaScript访问用户计算机的文件系统。
Web Services上传及下载文件
byte[] image = oImage.GetImage("");
///转换为支持存储区为内存的流
System.IO.MemoryStream memStream = new System.IO.MemoryStream(image);
/// <returns></returns>
public byte[] ConvertStreamToByteBuffer(System.IO.Stream theStream)
{
int b1;
System.IO.MemoryStream tempStream = new System.IO.MemoryStream();
}
else
Response.ContentType = oImage.GetImageType();
Response.BinaryWrite(image);
Response.End();
}
#region Web Form Designer generated code
public string GetImageType()
{
///这里只是测试，您可以根据实际的文件类型进行动态输出
return "image/jpg";
}
}
}
}
一旦我们创建了上面的asmx文件，进行编译后，我们就可以编写客户端的代码来进行调用这个Web Services了。
override protected void OnInit(EventArgs e)
{
//
// CODEGEN：该调用是 Web 窗体设计器所必需的。
利用FileUpload控件实现多文件上传
【摘 要】文件的上传在现在 的 Web 中已经随处可见, 它将在未 来的 Web 数据库应用中会得到更加 广泛的应用。FileUpload 控件是微软 ASP.N ET 2.0 中新增的一个控件, 但它 只能一次上传一个文件, 而在飞行试验数 据库管理系统中, 可能一次需要将多个文 件同时上传到服务器 中。因此文章主要介绍了如何利用 FileU plo ad 控件实现多文件的上传。
使用 FileUpload 控件可以选择上传到服务器上的文件 , 它显示一 个文本框控件和一个浏览按钮。单击浏览按钮, 选择要上 传到服务器 的文件。但当需要上传多文件时, 如果使用 Fi leUpload 控件, 就显得很 繁琐, 一个一个文件的上传即费时又费力。因此需要一个 一次能上传 多文件夹的控件。
加一个 Fil eUpl oad 控件时, 上 次添加到网页中 的 FileUpload 控件已经 不 存 在 了 , 因 此 , 无 论 用 户 单 击 “添 加 文 件 ” 按 钮 多 少 次 , ODBManage_DataInput.aspx 页面上只显示一个 FileUpload 控件, 而且, 单用户单击“上传文件”按钮上传文件时, 发现页面上的 Fi leUpl oad 控 件为空。因为以上原因, 不能实现同时上传多文件。
科技信息
○I T 技术论坛○
SCIE NCE & TE CHNO LO GY INFORM ATION
2008 年 第 28 期
利 用 FileUpload 控 件 实 现 多 文 件 上 传
李 志华 林 财兴 谢 甘第 李 红强 ( 上海 大学 机电 工程 与自动 化学 院 中国 上 海 200072)
Strin g
×
返 回要 上 传 文件 的 名称 , 不包 含 路径 信 息
C#中webService发布与调用
3.打开IIS(我的是在计算机管理->Internet信息服务->网站->默认网站->新建->虚拟网站->取网站名wService,并把你发布网站的路径设置进去...然后下一步下一步,网站建立OK)然后浏览刚建网站的webService,浏览Service.asmx.会在网页上打开.注意:这里就会有问题,我打开时会出现报错:
现在我们的webService就发布与调用成功。OK了。
步骤：(学习工具：.net2005)
1.先打开C#,新建->网站->(选中) Web服务->确定,OK，现在以新建了一个webService，里面会自动有一些代码，就它的"Hello World"吧，简单的测试就行了。
2.F5测试，会打开一个网页，显示是OK的。然后点生成->发布网站->设置好路径->确定，OK,现在在你设置的路径下会有一个asmx,DLL文件。
4.现在再返回C#里,新建一个winform,这个操作就不说了.在项目里添加Web引用,然后点击"本地计算机上的Web服务,会自动找到你刚才新建的Service,点击,取个它.取个Web引用名,点击添加引用.
OK,整个webservice就添加引用OK了.
5.上面我们发布，引用OK了，现在我们来调用我们的这个WebService，首先你要引用using 类名.Web引用名; ok引用成功了，我们来调用，首先在你调用的地方一定要把这个service实例化new 一下，否则跟我一样，半天点不出它的公共方法，白浪费了不少时间，郁闷，我咋这笨。。。希望你不要跟我一样：（
源错误:
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源文件: C:\Documents and Settings\Administrator\My Documents\Visual Studio 2005\Projects\misweb_tube (2).root\misweb_tube (2)\misweb_tube\website\sysfunction\web.config 行: 0
2021年国开电大《linux网络操作系统》在线形考测试答案
2021年国开电大《linux网络操作系统》在线形考测试答案题目1在后台运行的程序，在程序运行结束前不能调度到前台。
正确答案是：对题目2当一个文件的权限是lrwx---r-x时，表明选择一项：a. 同组用户可以写该文件b. 文件主不能执行该文件c. 这是一个链接文件d. 其他用户可以修改文件题目3在默认情况下，安装linux操作系统时，至少要创建哪两个分区选择一项：a. /swap /homeb. /root /varc. /root /homed. / swap题目4创建一个新文件可以使用的命令是选择一项：a. vib. touchc. 以上都可以d. cat题目5Linux文件系统的文件都按其作用分门别类地放在相关的目录中，对于系统配置文件，默认情况下放在______ 目录中选择一项：a. /etcb. /sbinc. /bind. /home题目6在shell坏境下，由root用户切换到普通用户hi的命令是选择一项：a. sub. Su hic. su hid. switch hi题目7配置完DHCP服务器，运行命令可以启动DHCP服务。
答案：service dhcpd start题目8FTP服务通过使用一个共同的用户名，密码不限的管理策略，让任何用户都可以很方便的从这些服务器上下载软件答案：anonymous题目9在Linux系统中，用户加密后的密码保存在文件中答案：/etc/shadow题目10将后台运行的作业号为03的程序调到前台运行的命令是答案：Fg 03题目11用fdisk命令对磁盘分区时，查看分区信息的子命令是答案：p题目12将httpd服务添加到开机启动的命令是回答答案：chkconfig httpd on题目13在Linux系统中，将文件打包后生成后缀为.tar文件的命令是。
答案：tar题目14让程序进入后台运行的操作是在命令后面添加回答答案：&题目15Samba服务的主配置文件名是答案：smb.conf题目16LVM（Logical Volume Manager）的中文全称是答案：逻辑卷管理器题目17某公司使用Linux操作系统服务器版搭建一台DNS服务器，为局域网内计算机提供域名解析服务。
Uploadify上传文件方法
Uploadify上传⽂件⽅法Uploadify是JQuery的⼀个上传插件，实现的效果⾮常不错，带进度显⽰。
不过官⽅提供的实例时php版本的，本⽂将详细介绍Uploadify在Aspnet中的使⽤，您也可以点击下⾯的链接进⾏演⽰或下载。
先给⼤家展⽰下效果图：修改：报找不到uploadify-cancel.png⽂件。
找到uploadify.css，找到.uploadify-queue-item .cancel a {，修改⽂件的路径。
好多⼈都说，在chrome、Firefox上使⽤uploadify的时候获取不到session导致上传出错。
需要⼿⼯将session id⽅法附加参数中。
但是我这⾥并没有这么做，并且在chrome、Firefox上传没问题，不知道为什么，也许是因为我⽤的最新版的原因吧。
要点：uploadify的js配置已经⽐较全⾯，在实际使⽤的时候可以适当的删减⼀些⽅法和属性。
⼀般情况下的单⽂件上传只考虑onSelect、onUploadError和onUploadSuccess即可。
如果是多⽂件上传，那么在单⽂件上传的基础上再加上对整个队列的监听onQueueComplete。
开始上传所有⽂件：$('#file_upload').uploadify('upload', '*');取消上传：$('#file_upload').uploadify('cancel', parm);parm为空：取消上传第⼀个⽂件。
parm为'*'：取消所有的上传⽂件。
parm为file id：取消该file id对应的⽂件。
修改附加的⼀些变量：$('#file_upload').uploadify("settings","formData",{"name1":"中⽂name","parm1":"修改后的参数"});参数为json，如果该json中的某个变量已经有了，那么覆盖该属性，如果没有，那么追加该属性。
使用WebService上传文件
WebService文件传输一、服务器端：新建工程，servicetest：新建类文件，UploadFileService：代码：package com.test;import java.io.File;import java.io.FileNotFoundException;import java.io.FileOutputStream;import java.io.InputStream;import javax.activation.DataHandler;/*** <b>function:</b>Axis WebService完成文件上传服务器端**/public class UploadFileService {/*** <b>function:</b>传递文件** @param handler* DataHandler这个参数必须* @param fileName* 文件名称* @return upload Info*/public String upload(DataHandler handler, String fileName) { if (fileName != null && !"".equals(fileName)) {File file = new File(fileName);if (handler != null) {InputStream is = null;FileOutputStream fos = null;try {is = handler.getInputStream();fos = new FileOutputStream(file);byte[] buff = new byte[1024 * 8];int len = 0;while ((len = is.read(buff)) > 0) {fos.write(buff, 0, len);}} catch (FileNotFoundException e) {return "fileNotFound";} catch (Exception e) {return "upload File failure";} finally {try {if (fos != null) {fos.flush();fos.close();}if (is != null) {is.close();}} catch (Exception e) {e.printStackTrace();}}return "file absolute path:" + file.getAbsolutePath();} else {return "handler is null";}} else {return "fileName is null";}}}基于该实现类，创建Web Service，如下图：点击Next会出现，可以忽略这个警告。
调用webservice unexpected end of file from server
调用webservice unexpected end of file from server摘要：I.问题概述- 调用webservice时出现的问题- 服务器端发送了“unexpected end of file”的错误信息II.问题原因分析- 网络连接问题- 服务器端代码问题- 客户端代码问题III.解决方案- 检查网络连接- 检查服务器端代码- 检查客户端代码- 调整网络请求超时设置IV.预防措施- 确保网络连接稳定- 编写健壮的服务器端和客户端代码- 设置合适的网络请求超时时间正文：在使用webservice进行网络通信时，有时会出现“unexpected end of file from server”的错误信息。
这通常意味着在服务器端发送数据时出现了问题。
为了找到解决方案，我们需要分析问题可能出现的原因，并采取相应的措施进行处理。
首先，可能是网络连接问题导致的。
在网络不稳定或者数据传输过程中出现丢包的情况下，服务器端可能会无法正确接收客户端的请求，从而发送“unexpected end of file from server”的错误信息。
为了解决这个问题，我们需要检查网络连接，确保网络环境稳定，没有出现丢包现象。
其次，问题可能出在服务器端代码上。
在处理客户端请求时，如果服务器端的代码存在逻辑错误或者漏洞，可能会导致无法正确响应客户端的请求，从而引发“unexpected end of file from server”的错误。
针对这个问题，我们需要检查服务器端的代码，确保其正确无误。
另外，客户端代码也可能是问题的根源。
在发送请求时，如果客户端代码存在问题，例如请求参数格式错误、请求头错误等，都可能导致服务器端无法正确处理请求，从而发送错误信息。
因此，我们需要仔细检查客户端代码，确保请求发送正确。
最后，我们还可以尝试调整网络请求的超时设置。
有时，由于网络延迟或者服务器负载等原因，可能导致请求处理时间过长。
如何通过WebService批量上传大文件
如何通过WebService批量上传多个大文件1.描述如何通过Web Service 批量上传大文件？本人使用Microsoft Visual Studio 2008 工具C# 语言开发Web Service 接收文件，使用WinForm 程序上传文件。
为实现Web Service 批量上传多个大文件：1、Web Service 需要支持接收大文件；2、Winform 程序需要支持多线程（大文件上传需要一段时间，Winform程序需要显示上传进度、需要显示上传过程，让使用者有个很好的交互效果）。
2.Web Service 简介Web Service是一个平台独立的，低耦合的，自包含的、基于可编程的web的应用程序，可使用开放的XML（标准通用标记语言下的一个子集）标准来描述、发布、发现、协调和配置这些应用程序，用于开发分布式的互操作的应用程序。
Web Service技术，能使得运行在不同机器上的不同应用无须借助附加的、专门的第三方软件或硬件，就可相互交换数据或集成。
依据Web Service规范实施的应用之间，无论它们所使用的语言、平台或内部协议是什么，都可以相互交换数据。
Web Service是自描述、自包含的可用网络模块，可以执行具体的业务功能。
Web Service也很容易部署，因为它们基于一些常规的产业标准以及已有的一些技术，诸如标准通用标记语言下的子集XML、HTTP。
Web Service减少了应用接口的花费。
Web Service为整个企业甚至多个组织之间的业务流程的集成提供了一个通用机制。
（Web Service 在此不做过多介绍，具体介绍可百度下）3.WEB Service 开发3.1.服务配置 一般支持上传4MB大小文件，为实现上传超过4MB大小文件，项目需要调整配置（Web.Config）的httpRuntime节点。
<httpRuntime maxRequestLength="40960"executionTimeout="1800" /> maxRequestLength：指定输入流缓冲阈值限制（以KB 为单位）。
前端大文件上传解决方案（500M以上）
前端⼤⽂件上传解决⽅案（500M以上）本⼈在2010年时使⽤swfupload为核⼼进⾏⽂件的批量上传的解决⽅案。
见⽂章：WEB版⼀次选择多个⽂件进⾏批量上传(swfupload)的解决⽅案。
本⼈在2013年时使⽤plupload为核⼼进⾏⽂件的批量上传的解决⽅案。
见⽂章：WEB版⼀次选择多个⽂件进⾏批量上传(Plupload)的解决⽅案最近在学习百度的开源上传组件WebUploader，写了⼀些⽰例以记录。
WebUploader的缺点是没有⼀个⽐较好的现成的界⾯，这个界⾯需要⾃⼰去实现。
⾃由度⾼了⼀些。
WebUploader是由Baidu WebFE(FEX)团队开发的⼀个简单的以HTML5为主，FLASH为辅的现代⽂件上传组件。
在现代的浏览器⾥⾯能充分发挥HTML5的优势，同时⼜不摒弃主流IE浏览器，沿⽤原来的FLASH运⾏时，兼容IE6+，iOS 6+, android 4+。
两套运⾏时，同样的调⽤⽅式，可供⽤户任意选⽤。
浏览器⽀持ie6,ie7,ie8,ie9,ie10,ie11,firefox,chrome,edge。
⽀持全平台操作系统：Windows,Mac,Linux⽀持⽂件夹上传下载，⽂件批量上传下载，层级⽬录保存。
关于WebUploader的功能说明：⼤⽂件上传续传⽀持超⼤⽂件上传(100G+)和续传，可以关闭浏览器，重启系统后仍然继续上传。
开源提供,JSP,PHP⽰例和源代码，其中JSP提供MySQL,Oracle,SQL Server数据库的配置和⽰例代码。
分⽚、并发分⽚与并发结合，将⼀个⼤⽂件分割成多块，并发上传，极⼤地提⾼⼤⽂件的上传速度。
当⽹络问题导致传输错误时，只需要重传出错分⽚，⽽不是整个⽂件。
另外分⽚传输能够更加实时的跟踪上传进度。
预览、压缩⽀持常⽤图⽚格式jpg,jpeg,gif,bmp,png预览与压缩，节省⽹络数据传输。
解析jpeg中的meta信息，对于各种orientation做了正确的处理，同时压缩后上传保留图⽚的所有原始meta数据。
调用webservice unexpected end of file from server
调用webservice unexpected end of file from server（实用版）目录1.引言：介绍“调用 webservice unexpected end of file from server”的概念和背景2.原因分析：探讨可能导致该问题的原因3.解决方案：提供解决“调用 webservice unexpected end of file from server”的方法和建议4.结论：总结全文，对未来可能出现的问题进行预测正文一、引言在网络编程中，我们经常会遇到“调用 webservice unexpected end of file from server”的问题。
对于这个问题，我们首先要了解其基本概念和背景，以便更好地分析和解决这个问题。
二、原因分析“调用 webservice unexpected end of file from server”通常是由于服务器在处理客户端请求时出现了异常情况，导致数据传输不完整。
可能的原因有以下几点：1.服务器端程序逻辑错误：服务器端的程序可能在处理客户端请求时出现了逻辑错误，导致数据处理不完整或者出现了死循环等情况。
2.网络传输问题：网络传输过程中可能出现了数据丢失或者延迟到达的情况，导致客户端接收到的数据不完整。
3.服务器资源限制：服务器可能因为资源限制（如内存不足、CPU 过载等）导致无法正常处理客户端请求。
三、解决方案为了解决“调用 webservice unexpected end of file from server”的问题，我们可以从以下几个方面入手：1.检查服务器端程序逻辑：仔细审查服务器端的程序代码，确保没有逻辑错误，避免出现数据处理不完整或者死循环等情况。
2.优化网络传输：可以通过提高网络带宽、减少网络延迟、采用数据压缩等技术手段，以提高数据传输的效率和稳定性。
3.提高服务器资源：根据服务器的负载情况，适当提高服务器的硬件配置（如内存、CPU 等），或者通过负载均衡技术合理分配服务器资源，确保服务器能够稳定地处理客户端请求。
分享一篇关于C#大文件上传的整个过程
分享⼀篇关于C#⼤⽂件上传的整个过程简单写个⼩例⼦，记录⼀下此次⼤⽂件上传遇到的所有问题。
⼀、客户端（使⽤winform窗体实现）具体功能：点击“选择”按钮，选择要上传的⽂件点击“上传⽂件”按钮，上传该⽂件调⽤UpLoad_Request(string address, string fileNamePath, string saveName, ProgressBar progressBar)⽅法在客户端显⽰上传进度，已经时间，平均速度，上传状态，上传⼤⼩FileUpload ⽂件上传类代码：public class FileUpload{///<summary>///上传⽂件///</summary>///<param name="address">⽂件上传到服务器的路径</param>///<param name="fileNamePath">要上传的本地路径（全路径）</param>///<param name="saveName">⽂件上传后的名称</param>///<returns>成功返回1，失败返回0</returns>public static int UpLoad_Request(string address, string fileNamePath, string saveName, ProgressBar progressBar){int returnValue = 0;//要上传的⽂件FileStream fs = new FileStream(fileNamePath, FileMode.Open, FileAccess.Read);//⼆进制对象BinaryReader r = new BinaryReader(fs);//时间戳string strBoundary = "----------" + DateTime.Now.Ticks.ToString("x");byte[] boundaryBytes = Encoding.ASCII.GetBytes("\r\n--" + strBoundary + "\r\n");//请求的头部信息StringBuilder sb = new StringBuilder();sb.Append("--");sb.Append(strBoundary);sb.Append("\r\n");sb.Append("Content-Disposition: form-data; name=\"");sb.Append("file");sb.Append("\"; filename=\"");sb.Append(saveName);sb.Append("\";");sb.Append("\r\n");sb.Append("Content-Type: ");sb.Append("application/octet-stream");sb.Append("\r\n");sb.Append("\r\n");string strPostHeader = sb.ToString();byte[] postHeaderBytes = Encoding.UTF8.GetBytes(strPostHeader);// 根据uri创建HttpWebRequest对象HttpWebRequest httpReq = (HttpWebRequest)WebRequest.Create(new Uri(address));//对发送的数据不使⽤缓存httpReq.AllowWriteStreamBuffering = false;//设置获得响应的超时时间（3min）httpReq.Timeout = 180000;httpReq.KeepAlive = true;httpReq.ProtocolVersion = HttpVersion.Version11;httpReq.Method = "POST";//对发送的数据不使⽤缓存//httpReq.AllowWriteStreamBuffering = true;//设置获得响应的超时时间（300s）//httpReq.Timeout = 300000;httpReq.ContentType = "multipart/form-data; boundary=" + strBoundary;long length = fs.Length + postHeaderBytes.Length + boundaryBytes.Length;long fileLength = fs.Length;httpReq.ContentLength = length;try{progressBar.Maximum = int.MaxValue;progressBar.Minimum = 0;progressBar.Value = 0;//每次上传8kint bufferLength = 8192;byte[] buffer = new byte[bufferLength]; //已上传的字节数long offset = 0; //开始上传时间DateTime startTime = DateTime.Now;int size = r.Read(buffer, 0, bufferLength);Stream postStream = httpReq.GetRequestStream(); //发送请求头部消息 postStream.Write(postHeaderBytes, 0, postHeaderBytes.Length);while (size > 0){postStream.Write(buffer, 0, size);offset += size;progressBar.Value = (int)(offset * (int.MaxValue / length));TimeSpan span = DateTime.Now - startTime;double second = span.TotalSeconds;Application.DoEvents();size = r.Read(buffer, 0, bufferLength);}//添加尾部的时间戳postStream.Write(boundaryBytes, 0, boundaryBytes.Length);postStream.Close();//获取服务器端的响应WebResponse webRespon = httpReq.GetResponse();Stream s = webRespon.GetResponseStream();//读取服务器端返回的消息StreamReader sr = new StreamReader(s);String sReturnString = sr.ReadLine();s.Close();sr.Close();if (sReturnString == "Success"){progressBar.Value = 100;returnValue = 1;}else if (sReturnString == "Error"){returnValue = 0;progressBar.Value = 0;//错误就得重新上传，进度条置零}}catch(Exception ex){Console.WriteLine(ex.Message);returnValue = 0;}finally{fs.Close();r.Close();}return returnValue;}}具体实现代码如下：using System;using System.Collections.Generic;using ponentModel;using System.Data;using System.Drawing;using System.IO;using System.Linq;using ;using System.Text;using System.Threading.Tasks;using System.Windows.Forms;namespace UpFileClient{public partial class Form1 : Form{public Form1(){InitializeComponent();}string filePath = "";string FileName = "";private void btnSelect_Click(object sender, EventArgs e){//创建⽂件弹出选择窗⼝（包括⽂件名）对象OpenFileDialog ofd = new OpenFileDialog();//判断选择的路径if (ofd.ShowDialog() == DialogResult.OK){this.txtSoundPath.Text = ofd.FileName.ToString();}filePath = this.txtSoundPath.Text;private void btnUpLoad_Click(object sender, EventArgs e){try {//上传服务器的地址（web服务）string address = "http://localhost:61501/WebService/SaveFileWebForm.aspx";//上传后⽂件保存的名称string saveName = DateTime.Now.ToString("yyyyMMddHHmmss");int count = FileUpload.UpLoad_Request(address, filePath, saveName, this.progressBar1);if (count > 0){MessageBox.Show("上传⽂件成功！");}else{MessageBox.Show("上传⽂件失败！");}}catch(Exception ex){Console.WriteLine(ex.Message);}}}}界⾯显⽰⼆、服务器端-提供⽂件上传服务1、创建⼀个web mvc项⽬，在创建⼀个webservice⽂件夹，在⽂件夹下创建⼀个SaveFileWebForm.axpx接⼝，设置这个页⾯为项⽬起始页，打开这个页⾯，右键查看代码，编写服务器端代码，运⾏项⽬项⽬结构：客户端上传⽂件时，服务器端（SaveFileWebForm.axpx）需要访问的到，（注：先运⾏服务器程序项⽬，在运⾏客户端程序项⽬）⽂件保存路径和⽂件保存名可以根据实际需要设置服务器端源码：using System;using System.Collections.Generic;using System.Linq;using System.Web;using System.Web.UI;using System.Web.UI.WebControls;namespace SaveFileWebService.WebService{public partial class SaveFileWebForm : System.Web.UI.Page{protected void Page_Load(object sender, EventArgs e){if (Request.Files.Count > 0){try{//得到客户端上传的⽂件HttpPostedFile file = Request.Files[0];//服务器端要保存的路径string filePath = "D:\\Test\\" + file.FileName + ".mp3";file.SaveAs(filePath);//返回结果Response.Write("Success");}catch{Response.Write("Error");}}elseResponse.Write("Error1");}}}}按照上⾯过程⾛下来，本来以为已经可以⼤功告成了，结果问题来了，⼩⽂件上传没问题，超了4m的⽂件上传不了，报错引发的异常:“.WebException”(位于System.dll 中)报400错误在使⽤FileUpload控件时不少⼈遇到过上传⽂件失败的问题，其实是出于安全的原因，.Net运⾏时对请求⽂件最⼤长度作了限制，开发者需要⼿动修改下配置⽂件。
ASP.NET文件上传大小的限制解决方案
⽂件上传⼤⼩的限制解决⽅案我们⼤家都知道为我们提供了⽂件上传FileUpload，默认情况下可上传的最⼤⽂件为4M，如果要改变可上传⽂件⼤⼩限制，那么我们可以在web.config中的httpRuntime元素中添加maxRequestLength属性设置⼤⼩，同时为了⽀持⼤⽂件上传超时可以添加executionTimeout属性设置超时时间。
⽹上有很多这样的例⼦，但实际情况是否是这样吗？<httpRuntime maxRequestLength="" executionTimeout=""/>测试环境IIS 7.5、.NET 3.5 sp1测试页⾯UploadFile.aspx<%@ Page Language="C#" AutoEventWireup="true" CodeFile="UploadFile.aspx.cs" Inherits="UploadFile" %><!DOCTYPE html><html xmlns="/1999/xhtml"><head runat="server"><meta http-equiv="Content-Type" content="text/html; charset=utf-8"/><title></title></head><body><form id="form1" runat="server"><div><asp:FileUpload ID="FileUpload1" runat="server" /><asp:Button ID="Button1" runat="server" Text="Button" /></div></form></body></html>测试页⾯UploadFile.aspx.csusing System;using System.Collections.Generic;using System.Linq;using System.Web;using System.Web.UI;using System.Web.UI.WebControls;public partial class UploadFile : System.Web.UI.Page{protected void Page_Load(object sender, EventArgs e){if (FileUpload1.FileContent != null){FileUpload1.SaveAs(Server.MapPath("/Files/"+FileUpload1.FileName));}}}实际测试1.上传⼩于4M的⽂件选择2.7M的pdf⽂件上传上传提⽰成功2. 上传⼤于4M的⽂件选择上传4.3M的pdf⽂件上传后报黄页3. 修改web.config⽂件，设置可上传⽂件⼤⼩限制修改web.config，增⼤可上传⽂件的⼤⼩限制，增⼤执⾏时间限制<httpRuntime maxRequestLength="2048000" executionTimeout="600"/>重新选择刚才4.3M的pdf⽂件，重新上传上传成功4. 上传⼤于30M的的⽂件碰到这个问题的实际环境是我们使⽤了第三⽅的上传⽂件组件，通过js调⽤第三⽅的ActiveX控件上传⽂件，修改web.config后上传⼤于30M 的⽂件的时候，报了如下错误查看windows系统⽇志，可以看到如下的⽇志错误，看到异常信息，我们可以猜测到是请求超长，但是我们设置了最⼤请求长度了啊，⽽且远远要⼤于30M。
非现场执法系统建设要求
非现场执法系统建设要求一、中心接入要求1、中心配置要求前端路口设备应质量可靠，性能、效果等参数满足非现场执法系统要求。
2、网络链路要求前端设备应向支队非现场执法系统中心平台申请分配路口IP地址，并连接上电子警察专用网络，经支队中心测试网络连通后方可接入。
网络链路连接时应当采用稳定、可靠、高效的网络接入设备。
数据要求前端路口设备采集的原始图像文件、数据信息（包含红灯开始时间、抓拍时间、红灯结束时间、抓拍车道、抓拍方向、设备地点）须合并在图像文件中，并采取信息加密校验存储防止信息篡改，以保证作为证据的信息图片的合法性和真实性，加密方式应满足采用中心平台分配的密钥。
前端设备取证的违法照片要求像素500万（3744×1408）以上，照片数量格式须满足GA/T 496–2009、GA/T832–2009要求，且同一违法行为的照片必须相互关联，满足非现场执法中心平台数据接口的要求。
前端设备采集的闯红灯违法数据必须满足三张连续照片加一段同步违法视频的要求。
其中三张连续照片的第一张照片车辆在停车线以内，第二张照片车辆压上停车线，第三张照片车辆越过停车线；同步违法视频要求提供H.264/MPEG4编解码D1（720×576&25fps）分辨率的视频。
前端设备采集的压双黄线、逆向行驶、违法变道违法数据必须满足三张连续照片加一段同步违法视频的要求。
同步违法视频要求提供H.264/MPEG4编解码D1（720×576&25fps）分辨率的视频。
3、数据传输要求违法数据在专网中传递时应采用DES加密算法进行加密后发送数据，并在中心端接收后由中心平台系统自动调用解密算法进行解密，防止非法截取。
前端设备应可以将抓拍后的数据主动上传到中心服务器中，每条违法数据上传时间小于15秒，上传数据须满足非现场执法中心平台接口（详见接口说明部分）要求。
4、视频记录要求前端设备须能够记录路口的全天侯录像，并能将实时图像传送到指挥中心，保存录像的帧率不小于25帧/秒，图像分辨率768*576，色彩24位真彩。
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Upload file using Web Service in Web Dynpro Application Upload file using Web Service in Web Dynpro Java ApplicationSummaryIn a Web Dynpro application you can upload a file to server using web services. First of all you have to develop a web service which can handle attachments (binary data). Then utilize that web service from Web Dynpro to upload file. To develop this application you have to follow the steps, described later, sequentially. The overall scenario is described in Figure 1.0Author(s): Sudip DasCompany: HCL TechnologiesCreated on: 2 April 2007Author BioSudip Das is working as a Netweaver Consultant for HCL Technologies, Kolkata.Table of ContentsSteps are to be followed (3)Web Service Creation and Deployment (3)Create Business Method (3)Prerequisites (3)Procedure (4)Consume Web Service in a Web Dynpro Application (11)Prerequisites (11)Procedure (11)Build, Deploy and Run Application (22)Related Content (23)Disclaimer and Liability Notice (24)Steps are to be followed1. Create Web Service (WS) which can handle (file) attachments.2. Bundle that web service with an EAR file and deploy into server.3. Create a Web Dynpro application.4. Create a Model in Web Dynpro application and import that web service into this model.5. Read the file from client side and send the file to WS using Logical Port.6. WS will handle that file on server side and do the specific job, like store that file in local file system ofserver or can store in a database in the form BLOB data.Web Service Creation and DeploymentTo expose web services you have to create Enterprise JavaBean (EJB) or Java class. Here we are exposing web services from an EJB. In EJB we develop business method which can handle file as binary data. Create Business MethodPrerequisites•FileHandleModule EJB project is created.•FileHandleModule project is currently displayed in J2EE Explorer of J2EE Development Perspective.•SAP J2EE engine and Software Deployment Manager (SDM) have been running properly in WAS (Web Application Server). Again you have checked that the J2EE server is correctly selected in the NetWeaver Developer Studio.Procedure•Double click on FileHandleBean under ejb-jar.xml file and select Methods Tab. Now select Business Methods and press Add Pushbutton. (Figure 1.1)•In this wizard, give the following values of the parameters. Figure 1.2 depicts the result after providing the values. Note that you have to select the type of fileContent parameter as byte.CommentName ValueMethod Name storeFileReturn Type VoidParameter 1 Name fileNameParameter 1 Type StringParameter 2 Name fileContentParameter 2 Type byte Select Array of size 1• Select Bean Tab of FileHandleBean and inside storeFile method place the custom code to handle the file as binary data for specific job purpose. Here we store the file in location file system of server.Figure 1.3 shows that custom code for file processing.• Select Web Service from the context menu of FileHandleBean. In the appeared wizard assign FileHandleWS to Web Service Name field and leave the entire field’s value as default. Choose Next button. (Figure 1.4, Figure 1.5)•Now select the methods of the FileHandleBean which will to be contained in the Virtual Interface (Web Service), if they are not already selected. (Figure 1.6) Choose Next button.•Now bundle the EJB project (FileHandleModule) into an EAR project. In the appeared wizard select the EAR project (if it is currently opened in J2EE Explorer) using Browse button or you can give any name for new EAR project. Provide FileHandleEAR for the EAR project name, this EAR project willbe created. Leave the other field’s value default like value of Virtual Interface is FileHandleWSVi and value of Web Service Definition is FileHandleWSWsd (Figure 1.7)• Select Build EJB Archive from the context menu of the EJB project (FileHandleModule). EJB JAR file named FileHandleModule.jar will be generated.• Now select Build Application Archive from the context menu of the EAR project (FileHandleEAR).EAR file named FileHandleEAR.ear will be generated.• Select Deploy to J2EE engine from the context menu of FileHandleEAR.ear file, under the EAR project FileHandleEAR. (Figure 1.8). You have made sure that the SAP J2EE Engine and Software Deployment Manager (SDM) has been running properly. Again you have checked that the J2EE server is correctly selected in the Developer Studio, if it is not configured then configure it from Window →Preferences →SAP J2EE Engine.• Now provide the password for SDM. If the deployment is successful then a successful message will be displayed in the Deploy Output View pane. (Figure 1.10)Consume Web Service in a Web Dynpro ApplicationTo consume a web service you have to create a Web Dynpro application. Using Model of Web Dynpro a web service can be imported to a Web Dynpro application. The whole procedure is described below. Prerequisites•FileHandleEAR (EAR Project) should be developed and currently deployed in to WAS.•SAP J2EE engine and Software Deployment Manager (SDM) have been running properly in WAS (Web Application Server). Again you have checked that the J2EE server is correctly selected in the NetWeaver Developer Studio. Here the same WAS is used, where the FileHandleEAR file isdeployed which contains the web service (FileHandleWS).• A Web Dynpro Project (WSDemoWD) is developed and currently displayed in Web Dynpro Explorer of Web Dynpro Perspective.Procedure• Now select Create Model from the context menu of Model in the Web Dynpro Explorer. (Figure 1.11)• Select Import Web Service Model in appeared wizard and choose Next button. (Figure 1.12)•In next wizard, provide FileHandleMdl for Model Name and com.hcl.model.fhandle for the Model Package. Choose Local Server for the WSDL (Web Service Definition Language) source or any other suitable option where the Web Service’s WSDL file is placed. (Figure 1.13)• Now select FileHandleWS from the list of web services are available on the server. (Figure 1.14) Choose Next button. In the appeared wizard the name of the Virtual Interface will be displayed under URI. Choose Finish button. (Figure 1.15). If the import of web service is successful then the Web Dynpro project structure will be like Figure 1.16.• In the Used Models area, right-click and choose Add. Select the Web Service model imported previously (FileHandleMdl) and choose OK button. (Figure 1.17 and 1.18)context, just send it externally (using Logical Port) because there's a problem in the current release.•Place some UI components in the view, StartView to select the file from client’s file system. Here we use FileUpload UI Component for this purpose. The overall design view (and Context binding with UI elements) of StartView is presented in Figure 1.19. Create three Value Attribute s in the Context of StartView, listed below.Name Typemsg stringfName stringfData BinaryuIVisibility com.sap.ide.webdynpro.uielementdefinitions.Visibility Provide the id for the FileUpload and Button UI element as ChosseFile and Send respectively. Bind fData and fName context element to data and fileName field of the FileUpload (ChosseFile) UI element respectively. Bind uIVisibility context element to visible field of both ChooseFile and Send UI Elements.Now bind msg context element to the text field of UploadMessage UI Element.• Provide Send to Name to define New Action for the Send button. Now go to the implementation ofthe onActionSend (in StartView ) and put the following code (it also includes the necessary import statements), shown in Figure 1.20. Here we collect the file name and file data using getFName() and getFData() method. Then we create the instance of model and stub, the names of the classes you can find under src folder of com.hcl.model.fhandle.proxies package (Figure 1.21)•Now put the following code, shown in Figure 1.22 in wdDoInit (in StartView) method, necessary for the FileUpload UI element.Build, Deploy and Run Application• Select Save All metadata from the context menu of WSDemoWD project (Web Dynpro Project).Select Rebuild Project from the context menu of WSDemoWD project (Web Dynpro Project). Now select Deploy New Archive and Run from the context menu of WSDemoWDApp (Web DynproApplication).•After deploying and running the application provide the file name to be uploaded using Browse button and the check the specified location (mentioned in business method of EJB) of WAS wherethe file to be stored.Related Content•/saphelp_nw04/helpdata/en/f7/af60f2e04d0848888675a800623a81/frameset.htm •/saphelp_nw04/helpdata/en/49/12eb82e0574********faf83995ecb/frameset.htm •/saphelp_nw04/helpdata/en/90/c1343e8c7f6329e10000000a114084/frameset.ht mDisclaimer and Liability NoticeThis document may discuss sample coding or other information that does not include SAP official interfaces and therefore is not supported by SAP. Changes made based on this information are not supported and can be overwritten during an upgrade.SAP will not be held liable for any damages caused by using or misusing the information, code or methods suggested in this document, and anyone using these methods does so at his/her own risk.SAP offers no guarantees and assumes no responsibility or liability of any type with respect to the content of this technical article or code sample, including any liability resulting from incompatibility between the content within this document and the materials and services offered by SAP. You agree that you will not hold, or seek to hold, SAP responsible or liable with respect to the content of this document.。