上传文件到FTP服务器

Question

我试图ulploade文件和FTP服务器，但是当我运行该方法它uploades只有2个文件，然后摊位。这档在这一行

Stream uploadStream = reqFTP.GetRequestStream(); 

当我到达此行第一2次，程序会检查我的证书，然后继续，但摊位，从不第三时间的推移检查我的证件。

这里是全码：

public void UploadLocalFiles(string folderName) 
     { 
      try 
      { 

       string localPath = @"\\localFolder\" + folderName; 
       string[] files = Directory.GetFiles(localPath); 
       string path;    

       foreach (string filepath in files) 
       { 
        string fileName = Path.GetFileName(filepath); 
        reqFTP = (FtpWebRequest)FtpWebRequest.Create(new Uri("ftp://serverIP/inbox/"+fileName)); 
        reqFTP.UsePassive = true; 
        reqFTP.UseBinary = true; 
        reqFTP.Credentials = new NetworkCredential("username", "password"); 
        reqFTP.EnableSsl = true; 
        ServicePointManager.ServerCertificateValidationCallback = Certificate; 
        reqFTP.Method = WebRequestMethods.Ftp.UploadFile; 

        FileInfo fileInfo = new FileInfo(localPath [email protected]"\"+ fileName); 
        FileStream fileStream = fileInfo.OpenRead(); 

        int bufferLength = 2048; 
        byte[] buffer = new byte[bufferLength]; 

        Stream uploadStream = reqFTP.GetRequestStream(); 
        int contentLength = fileStream.Read(buffer, 0, bufferLength); 

        while (contentLength != 0) 
        { 
         uploadStream.Write(buffer, 0, bufferLength); 
         contentLength = fileStream.Read(buffer, 0, bufferLength); 
        } 
       } 

      } 
      catch (Exception e) 
      { 
       Console.WriteLine("Error in GetLocalFileList method!!!!!" + e.Message); 
      } 

     } 

正如我Saied如何，当我到了它会检查我的certificats，这里的uloadStream代码是我的证件方法

public bool Certificate(Object sender, X509Certificate cert, X509Chain chain, SslPolicyErrors errors) 
     { 
      { return cert.Issuer == "myCertificate"; } 
     } 

是有一些方法来只连接到FTP服务器一次，并执行证书一次，并举行会议？因为每次我想上传或下载文件，因为我想连接并验证每个文件的证书..

Answer 1

您可能正在为ServicePoint.ConnectionLimit Property，即2达到默认连接限制。 FtpWebRequest有一个ServicePoint属性，您可以调整。上传完成后，您需要关闭您的uploadStream。

Answer 2

只需添加这条线在你的应用程序的入口点：

System.Net.ServicePointManager.ServerCertificateValidationCallback = ((sender, certificate, chain, sslPolicyErrors) => true);