上传多个文件到FTP在C＃ [英] Upload Multiple files to FTP in c#

问题描述

我使用下面的方法从本地服务器的文件上传到FTP服务器，在这里我创建一个新的连接和启动每一个新的会话，每个文件上传和关闭相同。如何在C＃中单发起的会话实现这一目标。

这是我的代码

 公共BOOL UploadTempFilesToFTP（）
 {
的String []的fileList; 
试
 {
 ConfiguredValues conObj =新ConfiguredValues（）; 
 conObj.PickTheValuesFromConfigFile（）; 
的fileList = Directory.GetFiles（conObj.tempPath）; 
的foreach（在字符串的fileList文件名）
 {
的FtpWebRequest upldrequest =（的FtpWebRequest）FtpWebRequest.Create（conObj.tempOutboundURL +文件名）; 
 
 
 upldrequest.UseBinary = TRUE; 
 upldrequest.KeepAlive = FALSE; 
 upldrequest.Timeout = -1; 
 upldrequest.UsePassive = TRUE; 
 
 upldrequest.Credentials =新的NetworkCredential（conObj.user，conObj.pass）; 
 
 upldrequest.Method = WebRequestMethods.Ftp.UploadFile; 
 
串destinationAddress = conObj.tempPath; 
 
的FileStream FS = File.OpenRead（destinationAddress +文件名）; 
字节[]缓冲区=新的字节[fs.Length] 
 fs.Read（缓冲液，0，buffer.Length）; 
 fs.Close（）; 
流requestStr = upldrequest.GetRequestStream（）; 
 requestStr.Write（缓冲液，0，buffer.Length）; 
 requestStr.Close（）; 
 requestStr.Flush（）; 
 FtpWebResponse响应=（FtpWebResponse）upldrequest.GetResponse（）; 
 response.Close（）; 
 File.Delete（destinationAddress +文件名）; 
} 
 Console.WriteLine（成功上传到Temp文件夹）; 
返回真; 
} 
赶上（异常前）
 {
 Console.WriteLine（上传失败{0}，ex.Message）; 
返回FALSE; 
} 
 
} 
  

解决方案

FTP协议的目的是要求基础上的作品。

您开始使用的方法（在你的情况UploadFile）的请求。

你能做的唯一的事情就是将keepalive您的要求，以避免连接结束

  upldrequest.KeepAlive = TRUE; 
  

在每次请求你除了最后一个创造。这将使登录只有第一个的FtpWebRequest 。

然后，当您创建的最后的FtpWebRequest ，设置

  upldrequest.KeepAlive = FALSE; 
  

和它将关闭完成后连接。

i'm using the below method to upload files from local server to FTP server, here i'm creating a new connection and initiating a new session each and every file uploading and closing the same. how to achieve this in single initiated session in c#.

this is my code

public bool UploadTempFilesToFTP()
    {
        string[] fileList;
        try
        {
            ConfiguredValues conObj = new ConfiguredValues();
            conObj.PickTheValuesFromConfigFile();
            fileList = Directory.GetFiles(conObj.tempPath);
            foreach (string FileName in fileList)
            {
                FtpWebRequest upldrequest = (FtpWebRequest)FtpWebRequest.Create(conObj.tempOutboundURL + FileName);


                upldrequest.UseBinary = true;
                upldrequest.KeepAlive = false;
                upldrequest.Timeout = -1;
                upldrequest.UsePassive = true;

                upldrequest.Credentials = new NetworkCredential(conObj.user, conObj.pass);

                upldrequest.Method = WebRequestMethods.Ftp.UploadFile;

                string destinationAddress = conObj.tempPath;

                FileStream fs = File.OpenRead(destinationAddress + FileName);
                byte[] buffer = new byte[fs.Length];
                fs.Read(buffer, 0, buffer.Length);
                fs.Close();
                Stream requestStr = upldrequest.GetRequestStream();
                requestStr.Write(buffer, 0, buffer.Length);
                requestStr.Close();
                requestStr.Flush();
                FtpWebResponse response = (FtpWebResponse)upldrequest.GetResponse();
                response.Close();
                File.Delete(destinationAddress + FileName);
            }
            Console.WriteLine("Uploaded Successfully to Temp folder");
            return true;
        }
        catch (Exception ex)
        {
            Console.WriteLine("Upload failed. {0}", ex.Message);
            return false;
        }

    } 

解决方案

The ftp protocol is intended to works on request basis.

You start a request with a method (in your case UploadFile).

The only thing you can do is to KeepAlive your request to avoid connection closing

upldrequest.KeepAlive = true;

on every request you create except the last one. This will make a login only the first FTPWebRequest.

Then when you create the last FTPWebRequest, set

upldrequest.KeepAlive = false;

and it will close the connection when done.

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