file - 通过 FTP 传输 PGP 文件时出错：底层连接已关闭：接收时发生意外错误

Question

我正在尝试通过 FTP 上传 PGP 加密文件。但我收到如下错误消息：

底层连接已关闭：接收时发生意外错误。

我正在使用以下代码并在行出现错误：

流 ftpStream = response.GetResponse();

有没有人可以尽快帮助我。

以下是代码示例：

FtpWebRequest request =
  WebRequest.Create("ftp://ftp.website.com/sample.txt.pgp") as FtpWebRequest; 
request.UsePassive = true;    
FtpWebResponse response = request.GetResponse() as FtpWebResponse;    
Stream ftpStream = response.GetResponse();    
int bufferSize = 8192;    
byte[] buffer = new byte[bufferSize];    
using (FileStream fileStream =
       new FileStream("localfile.zip", FileMode.Create, FileAccess.Write))
{
    int nBytes;
    while((nBytes = ftpStream.Read(buffer, 0, bufferSize) > 0)
    {
        fileStream.Write(buffer, 0, nBytes);
    }
}

问候， 苏梅特

Answer 1

ftp.UsePassive = true;
ftp.Method = WebRequestMethods.Ftp.UploadFile;
ftp.KeepAlive = false;
ftp.UseBinary = true;
ftp.UsePassive = true;
ftp.Timeout = int.MaxValue;
ftp.ReadWriteTimeout = int.MaxValue;
ftp.Proxy = null;
ftp.Credentials = new NetworkCredential(values.UserName, values.Password);

Answer 2

你为什么要上传使用GetResponse()？你至少需要request.Method = WebRequestMethods.Ftp.UploadFile;并且request.GetRequestStream();