Stream 使用 C# 仅将 512 字节写入 FTP 服务器上的文件

Question

我正在尝试使用 C# 将文件从本地计算机复制到 FTP 服务器。当我使用下面的代码时，文件被完全复制到 FTP 服务器，但 ** 原始行被切割成只有 512 字节长的片段，而它们应该是 1152,1126 或 1024 字节长。 ** 我使用的示例文件现在有 16 行而不是 7 行。

    public void uploadLOTFILE(string username, string password)
    {
        FtpWebRequest request = (FtpWebRequest)WebRequest.Create("ftp://mysite.mine/mypathandfilename");
        request.Method = WebRequestMethods.Ftp.UploadFile;
        request.Credentials = new NetworkCredential(username, password);
        request.KeepAlive = true;
        System.IO.Stream rs = request.GetRequestStream();

        var lines = File.ReadLines(@"myLocalFile.txt");
        foreach (var line in lines)
        {
            byte[] buffer = Encoding.ASCII.GetBytes(line);                
            Console.WriteLine("buffer.length:" + buffer.Length.ToString());
            rs.Write(buffer,0,buffer.Length);
        }
        rs.Close();

        FtpWebResponse response = (FtpWebResponse)request.GetResponse();

        Console.WriteLine("Upload File Complete, status {0}", response.StatusDescription);

        response.Close();
      }

Console.writeline 示例文件的输出：

buffer.length:1152

buffer.length:1126

buffer.length:1152

buffer.length:1152

buffer.length:1152

buffer.length:1152

buffer.length:1024

我也使用了来自 msdn (https://msdn.microsoft.com/en-us/library/ms229715(v=vs.110).aspx) 的精确副本，但结果相同。

编辑： 还尝试了以下代码：字符串文件路径 = @"myFilePath"; var 文件名 = Path.GetFileName(文件路径); var request = (FtpWebRequest)WebRequest.Create("ftp://myftp");

        request.Method = WebRequestMethods.Ftp.UploadFile;
        request.Credentials = new NetworkCredential(username, password);
        request.UsePassive = true;
        request.UseBinary = true;
        request.KeepAlive = false;

        using (var fileStream = File.OpenRead(filePath))
        {
            using (var requestStream = request.GetRequestStream())
            {
                fileStream.CopyTo(requestStream);
                requestStream.Close();
            }
        }

它给出了相同的结果。文件已完全复制，但每 512 字节添加一个换行符。

使用 FileZilla，我可以正确地 FTP 传输相同类型的文件。

Answer 1

我使用可使用 cmd 访问的内置 windows FTP 解决了我的问题。

            string[] lines = { username, password, "remote directory", "put " + "\"" + filePath + "\"" , "bye"};
        // WriteAllLines creates a file, writes a collection of strings to the file,
        // and then closes the file.  You do NOT need to call Flush() or Close().
        System.IO.File.WriteAllLines("full file path of your script", lines);
        Process cmd = new Process();
        cmd.StartInfo.FileName = "cmd.exe";
        cmd.StartInfo.RedirectStandardInput = true;
        cmd.StartInfo.RedirectStandardOutput = true;
        cmd.StartInfo.CreateNoWindow = true;
        cmd.StartInfo.UseShellExecute = false;
        cmd.Start();

        cmd.StandardInput.WriteLine(@"ftp -s:" + "\"" + "full file path of your script" + "\"" + " remote device");
        cmd.StandardInput.Flush();
        cmd.StandardInput.Close();
        cmd.WaitForExit();

Stream 使用 C# 仅将 512 字节写入 FTP 服务器上的文件

Stream writes only 512 bytes to a file on FTP server using C#

c#

ftp

ftpwebrequest