无法在c#中将文件上传到ftp

Question

无法将文件上传到 ftp 这是我的代码....

string filename = Path.GetFileName(source);
FtpWebRequest request = (FtpWebRequest)FtpWebRequest.Create(ftp + ftpFolder + filename);
request.Credentials = new NetworkCredential("username", "password");
request.UseBinary = true;
request.Method = WebRequestMethods.Ftp.UploadFile;
request.Proxy = new WebProxy();
FileStream fs = File.OpenRead(source);
byte[] buffer = new byte[fs.Length];
fs.Read(buffer, 0, buffer.Length);
fs.Close();
Stream ftpstream = request.GetRequestStream();
ftpstream.Write(buffer, 0, buffer.Length);
ftpstream.Close();
File.Delete(source);

GetRequestStream() 总是出现错误，无法识别命令...如何克服此错误？ 任何帮助将不胜感激....

Answer 1

添加这两行

request.KeepAlive = false;
request.UsePassive= false;

如果它不起作用，请检查您的防病毒软件是否阻止了 FTP