C＃如何上傳大文件到FTP（文件大小必須爲500 MB - 1 GB）

Question

我是新手，我想用C＃發送大文件到ftp，但是我無法發送超過500 MB的文件 - 1 GB。有人可以幫我嗎？謝謝。

我正在使用的代碼是：

private void btnUpload_Click_1(object sender, EventArgs e) 
    { 
     openFileDialog.ShowDialog(); 
     NetworkStream passiveConnection; 
     FileInfo fileParse = new FileInfo(openFileDialog.FileName); 
     FileStream fs = new 
     FileStream(openFileDialog.FileName, FileMode.Open); 
     byte[] fileData = new byte[fs.Length]; 
     fs.Read(fileData, 0, (int)fs.Length); 
     passiveConnection = createPassiveConnection(); 
     string cmd = "STOR " + fileParse.Name + "\r\n"; 
     tbStatus.Text += "\r\nSent:" + cmd; 
     string response = sendFTPcmd(cmd); 
     tbStatus.Text += "\r\nRcvd:" + response; 
     passiveConnection.Write(fileData, 0, (int)fs.Length); 
     passiveConnection.Close(); 
     MessageBox.Show("Uploaded"); 
     tbStatus.Text += "\r\nRcvd:" + new 
     StreamReader(NetStrm).ReadLine(); getRemoteFolders(); 
    } 

Answer 1

不讀取整個文件（它會消耗太多的內存和時間），由塊中讀取：

NetworkStream passiveConnection; 
FileInfo fileParse = new FileInfo(openFileDialog.FileName); 
using(FileStream fs = new FileStream(openFileDialog.FileName, FileMode.Open)) 
{ 
    byte[] buf = new byte[8192]; 
    int read; 

    passiveConnection = createPassiveConnection(); 
    string cmd = "STOR " + fileParse.Name + "\r\n"; 
    tbStatus.Text += "\r\nSent:" + cmd; 
    string response = sendFTPcmd(cmd); 
    tbStatus.Text += "\r\nRcvd:" + response; 

    while ((read = fs.Read(buf, 0, buf.Length) > 0) 
    { 
     passiveConnection.Write(buf, 0, read); 
    } 
} 

passiveConnection.Close(); 
MessageBox.Show("Uploaded"); 
tbStatus.Text += "\r\nRcvd:" + new 
StreamReader(NetStrm).ReadLine(); 
getRemoteFolders(); 

是的，那麼FtpWebRequest？