将文件上传到FTP目的地已损坏，一旦

本文介绍了将文件上传到FTP目的地已损坏，一旦的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！ 问题描述

我创建一个简单的拖放文件和上传 - 自动到FTP windows应用程序

和我使用的 MSDN代码上传文件到FTP。

中的代码是相当平直前锋：

//获取用于与服务器通信的对象。 的FtpWebRequest请求=（的FtpWebRequest）WebRequest.Create（的String.Format（{0} {1}，FTP_PATH，filenameToUpload））; request.Method = WebRequestMethods.Ftp.UploadFile; //选项 request.UseBinary = TRUE; request.UsePassive = FALSE; // FTP凭证 request.Credentials =新的NetworkCredential（FTP_USR，FTP_PWD）; //文件的内容复制到请求流。 的StreamReader的SourceStream =新的StreamReader（fileToUpload.FullName）; 字节[] = fileContents Encoding.UTF8.GetBytes（sourceStream.ReadToEnd（））; sourceStream.Close（）; request.ContentLength = fileContents.Length; 流requestStream = request.GetRequestStream（）; requestStream.Write（fileContents，0，fileContents.Length）; requestStream.Close（）; FtpWebResponse响应=（FtpWebResponse）request.GetResponse（）; writeOutput（上传文件完成！）; writeOutput（状态：+ response.StatusDescription）; response.Close（）;

和确实获取上传到FTP

问题是当我看到在浏览器上的文件，或者只需下载并尝试看到它在桌面上，我得到：

我已经用 request.UseBinary = FALSE; 和 request.UsePassive = FALSE; ，但它不缝做任何形式的任何好。

我已经找到退出是，原来的文件有122KB lenght并在FTP（和下载后），它有219KB。 ..

我在做什么错了？

顺便说一句，在 uploadFileToFTP（）方法在的BackgroundWorker 运行，但我真的不有什么差别的事情...

解决方案

您不应该使用一个StreamReader，但只有一个流中读取二进制文件。

StreamReader的设计为只读文本文件

试试这个：

私有静态无效了（字符串的资源文件，字符串的TargetFile） {试 {串ftpServerIP = ConfigurationManager中.AppSettings [ftpIP]; 串ftpUserID = ConfigurationManager.AppSettings [名为ftpuser]; 串ftpPassword = ConfigurationManager.AppSettings [ftpPass]; ////字符串ftpURI =; 字符串文件名=FTP：//+ ftpServerIP +//+的TargetFile; 的FtpWebRequest ftpReq =（的FtpWebRequest）WebRequest.Create（文件名）; ftpReq.UseBinary = TRUE; ftpReq.Method = WebRequestMethods.Ftp.UploadFile; ftpReq.Credentials =新的NetworkCredential（ftpUserID，ftpPassword）; 字节[] B = File.ReadAllBytes（的资源文件）; ftpReq.Co​​ntentLength = b.length个; 使用（流S = ftpReq.GetRequestStream（）） { s.Write（B，0，b.length个）; } FtpWebResponse ftpResp =（FtpWebResponse）ftpReq.GetResponse（）; 如果（ftpResp！= NULL） { MessageBox.Show（ftpResp.StatusDescription）; } } 赶上（异常前） { MessageBox.Show（ex.ToString（））; } }

I'm creating a simple drag-file-and-upload-automatically-to-ftp windows application

and I'm using the MSDN code to upload the file to the FTP.

The code is pretty straight forward:

// Get the object used to communicate with the server. FtpWebRequest request = (FtpWebRequest)WebRequest.Create(String.Format("{0}{1}", FTP_PATH, filenameToUpload)); request.Method = WebRequestMethods.Ftp.UploadFile; // Options request.UseBinary = true; request.UsePassive = false; // FTP Credentials request.Credentials = new NetworkCredential(FTP_USR, FTP_PWD); // Copy the contents of the file to the request stream. StreamReader sourceStream = new StreamReader(fileToUpload.FullName); byte[] fileContents = Encoding.UTF8.GetBytes(sourceStream.ReadToEnd()); sourceStream.Close(); request.ContentLength = fileContents.Length; Stream requestStream = request.GetRequestStream(); requestStream.Write(fileContents, 0, fileContents.Length); requestStream.Close(); FtpWebResponse response = (FtpWebResponse)request.GetResponse(); writeOutput("Upload File Complete!"); writeOutput("Status: " + response.StatusDescription); response.Close();

and it does get uploaded to the FTP

Problem is when I see the file on a browser, or simply download and try to see it on desktop I get:

I already used request.UseBinary = false; and request.UsePassive = false; but it does not seam to do any kind of good whatsoever.

What I have found out was that, the original file has 122Kb lenght and in the FTP (and after downloading), it has 219Kb...

What am I doing wrong?

By the way, the uploadFileToFTP() method is running inside a BackgroundWorker, but I don't really thing that makes any difference...

解决方案

You shouldn't use a StreamReader but only a Stream to read binary files.

Streamreader is designed to read text files only.

Try with this :

private static void up(string sourceFile, string targetFile) { try { string ftpServerIP = ConfigurationManager.AppSettings["ftpIP"]; string ftpUserID = ConfigurationManager.AppSettings["ftpUser"]; string ftpPassword = ConfigurationManager.AppSettings["ftpPass"]; ////string ftpURI = ""; string filename = "ftp://" + ftpServerIP + "//" + targetFile; FtpWebRequest ftpReq = (FtpWebRequest)WebRequest.Create(filename); ftpReq.UseBinary = true; ftpReq.Method = WebRequestMethods.Ftp.UploadFile; ftpReq.Credentials = new NetworkCredential(ftpUserID, ftpPassword); byte[] b = File.ReadAllBytes(sourceFile); ftpReq.ContentLength = b.Length; using (Stream s = ftpReq.GetRequestStream()) { s.Write(b, 0, b.Length); } FtpWebResponse ftpResp = (FtpWebResponse)ftpReq.GetResponse(); if (ftpResp != null) { MessageBox.Show(ftpResp.StatusDescription); } } catch (Exception ex) { MessageBox.Show(ex.ToString()); } }