将大文件上传到 ftp C#

本文关键字：ftp 文件 | 更新日期: 2023-09-27 18:37:01

我使用此代码将大文件上传到ftp站点。

法典

using (FileStream fs = new FileStream(FileLoc, FileMode.Open, FileAccess.Read))
            {
                string ftpUrl = string.Format("{0}/{1}", uploadUrl, uploadFileName);
                FtpWebRequest requestObj = FtpWebRequest.Create(ftpUrl) as FtpWebRequest;
                requestObj.Method = WebRequestMethods.Ftp.UploadFile;
                requestObj.Credentials = new NetworkCredential(Uid, Pass);
                using (Stream requestStream = requestObj.GetRequestStream())
                {
                    byte[] buffer = new byte[8092];
                    int read = 0;
                    while ((read = fs.Read(buffer, 0, buffer.Length)) != 0)
                    {
                        requestStream.Write(buffer, 0, read);
                    }
                    requestStream.Flush();
                    if (fs != null)
                    {
                        fs.Close();
                        fs.Dispose();
                    }
                    if (requestStream != null)
                    {
                        requestStream.Close();
                        requestStream.Dispose();
                    }
                }
            }

有时此代码上行文件非常好，但有时它会上调文件的某些部分不完整文件，并且不会给出任何错误。

任何人都可以帮助我为什么有时它只上传文件的某些部分而不是孔文件。

将大文件上传到 ftp C#

这是我们用于上传到FTP的代码。它看起来与您自己的非常相似。Nevertheleess，我发布它供您参考，因为我们没有任何此类报告的故障

    private void UploadFile(string fileToUpload)
    {
        Output = new Uri(Path.Combine(Output.ToString(), Path.GetFileName(fileToUpload)));
        FtpWebRequest request = WebRequest.Create(Output) as FtpWebRequest;
        request.Method = WebRequestMethods.Ftp.UploadFile;
        // in order to work with Microsoft Windows Server 2003 + IIS, we can't use passive mode.
        request.UsePassive = false;
        request.Credentials = new NetworkCredential(username, password);
        // Copy the contents of the file to the request stream.
        Stream dest = request.GetRequestStream();
        FileStream src = File.OpenRead(fileToUpload);
        int bufSize = (int)Math.Min(src.Length, 1024);
        byte[] buffer = new byte[bufSize];
        int bytesRead = 0;
        int numBuffersUploaded = 0;            
        do
        {
            bytesRead = src.Read(buffer, 0, bufSize);
            dest.Write(buffer, 0, bufSize);
            numBuffersUploaded++;
        }
        while (bytesRead != 0);
        dest.Close();
        src.Close();
        FtpWebResponse response = (FtpWebResponse)request.GetResponse();
        if (response.StatusCode != FtpStatusCode.ClosingData)
        {
            Console.Error.WriteLine("Request {0}: Error uploading file to FTP server: {1} ({2})", Id, response.StatusDescription, response.StatusCode);
        }
        else
        {
            Console.Out.WriteLine("Request {0}: Successfully transferred file to {1}", Id, Output.ToString());
        }
    }
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