Question

NET Framework 4.6

我的代码中出现了一个奇怪而又困难的错误。当我上传一个ZIP文件时； 150MB（慢速互联网，需要15分钟才能上传），有时任务没有100％完成。它永远不会到达控制台的最后一行，并在while循环时挂在进度条上。

FTP服务器上的文件已完成且未损坏。那么，为什么它会挂在某些文件上（10次中的5次）？

尝试了其他旧帖子中的一些帖子，说这可能是请求配置。在while循环之后也尝试关闭ftpStream / fileStream。但这不会有任何效果。

希望有人可以帮助我。这是任务：

Task TaskA = Task.Run(async () =>
{
    // Get filesize
    double len = new FileInfo(zipPathFull).Length;
    string resultSize = ConvertToReadable(len);
    ThreadSafeUpdateStatus(String.Format("Zip bestand aangemaakt, uploaden {0}...", resultSize));

    // Verstuur ZIP over FTP
    Console.WriteLine("Starting FTP commands...");
    FtpWebRequest request = (FtpWebRequest)WebRequest.Create("ftp://DOMAIN.nl/domains/DOMAIN.nl/public_html/transfer/zips/" + zipfilename + ".zip");
    request.Credentials = new NetworkCredential("USERNAME", "PASSWORD");
    request.Timeout = -1;
    request.KeepAlive = true;
    request.UseBinary = true;
    request.UsePassive = true;
    request.ServicePoint.ConnectionLimit = 1000;
    request.Method = WebRequestMethods.Ftp.UploadFile;

    Console.WriteLine("Uploading over FTP...");

    using (Stream fileStream = File.OpenRead(zipPathFull))
    using (Stream ftpStream = request.GetRequestStream())
    {
        byte[] buffer = new byte[10240];
        int read; 
        while ((read = fileStream.Read(buffer, 0, buffer.Length)) > 0)
        {
            Console.WriteLine("Buffer status: " + (int)fileStream.Position);
            ftpStream.Write(buffer, 0, read);

            var percent = 100m * ((decimal)fileStream.Position / fileStream.Length);
            double doublepercentage = (double)percent;
            ThreadSafeUpdateProgress(doublepercentage);

            string CurrentresultSize = ConvertToReadable((double)fileStream.Position);
            ThreadSafeUpdateStatus(String.Format("Zip bestand aangemaakt, uploaden {0}/{1}...", CurrentresultSize, resultSize));
        }

        ftpStream.Close();
        fileStream.Close();
    }

    request.Abort();

    Console.WriteLine("FTP Done");

    .....
 });

C＃FtpWebRequest-完成后挂起

0 个答案: