如何從ftp保存文件？

我從ftp到本地文件夾複製文件夾結構，然後複製包含在其中的所有文件梅索德：如何從ftp保存文件？

public void CreateDirectories() 
{ 
    FtpWebRequest request = (FtpWebRequest)WebRequest.Create(Url); 
    request.Credentials = new NetworkCredential(Login, Pass); 
    request.Method = WebRequestMethods.Ftp.ListDirectory; 

    string soursePath = @"L:\Test"; 

    StreamReader streamReader = new StreamReader(request.GetResponse().GetResponseStream()); 

    string directoryName = streamReader.ReadLine(); 

    while (directoryName != null) 
    { 
     //Create directories structure 
     if (directoryName.StartsWith("I") && !directoryName.Contains("p")) 
     { 
      string newPath = System.IO.Path.Combine(soursePath, directoryName); 
      if (!System.IO.Directory.Exists(newPath)) 
      { 
       System.IO.Directory.CreateDirectory(newPath); 

       //get file list and invoke DownLoad(string directoryName, string fileName) 
       FtpWebRequest fileRequest = (FtpWebRequest)WebRequest.Create(Url + directoryName + "/"); 
       fileRequest.Credentials = new NetworkCredential(Login, Pass); 
       fileRequest.Method = WebRequestMethods.Ftp.ListDirectory; 

       StreamReader fileStreamReader = new StreamReader(fileRequest.GetResponse().GetResponseStream()); 
       string fileName = fileStreamReader.ReadLine(); 
       while (fileName != null) 
       { 
        DownLoad(directoryName, fileName); 
        fileName = streamReader.ReadLine(); 
       } 

      } 
     } 

     directoryName = streamReader.ReadLine(); 
    } 

    request = null; 
    streamReader = null; 
}

是複製當前文件和梅索德：

public void DownLoad(string directoryName, string fileName) 
{ 
    string localPath = @"L:\Test\" + directoryName; 

    FtpWebRequest requestFileDownload = (FtpWebRequest)WebRequest.Create("ftp://ftp.equip.me/prod/" + directoryName + "/" + fileName); 
    requestFileDownload.Credentials = new NetworkCredential(Login, Pass); 
    requestFileDownload.Method = WebRequestMethods.Ftp.DownloadFile; 

    FtpWebResponse responseFileDownload = (FtpWebResponse)requestFileDownload.GetResponse(); 

    Stream responseStream = responseFileDownload.GetResponseStream(); 
    FileStream writeStream = new FileStream(localPath + "\\" + fileName, FileMode.Create); 

    int Length = 2048; 
    Byte[] buffer = new Byte[Length]; 
    int bytesRead = responseStream.Read(buffer, 0, Length); 

    while (bytesRead > 0) 
    { 
     writeStream.Write(buffer, 0, bytesRead); 
     bytesRead = responseStream.Read(buffer, 0, Length); 
    } 

    responseStream.Close(); 
    writeStream.Close(); 

    requestFileDownload = null; 
    responseFileDownload = null; 
}

但行Stream responseStream = responseFileDownload.GetResponseStream（）;它停止將近40秒，然後拋出暫停超時，並且沒有一個文件尚未保存（文件很小 - 50 kb）

來源

2011-12-27 revolutionkpi

是你的防火牆開放FTP請求？ – rene 2011-12-27 12:54:31

保存文件夾結構正在工作，所以問題不與防火牆相關聯 – revolutionkpi 2011-12-27 13:35:52

它是否失敗的特定文件？在特定的目錄中？也許FTP服務器限制了活動連接的數量（當你開始下載時你已經有兩個連接） – rene 2011-12-27 13:53:08

您應該嘗試的第一件事是關閉passive mode，因爲這是自動的被大多數防火牆阻止，但是ftpWebRequest的默認操作模式。

略低於該行：

requestFileDownload.Method = WebRequestMethods.Ftp.DownloadFile;

這一個：

requestFileDownload.UsePassive = false;

來源

2011-12-27 20:12:57

如何從ftp保存文件？

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