C＃单文件FTP下载 [英] C# single file FTP download

问题描述

我正试图在C＃控制台应用程序中下载FTP文件，但即使我现在的路径是正确的，我总是收到一个错误，说明550文件未找到。

I am trying to download a file usng FTP within a C# console application, but even though I now the paths are correct I always get an error saying "550 file not found".

有什么办法返回当前路径（一旦连接到服务器）？

Is there any way, to return the current path (once connected to the server)?

// lade datei von FTP server
        string ftpfullpath = "ftp://" + Properties.Settings.Default.FTP_Server + Properties.Settings.Default.FTP_Pfad + "/" + Properties.Settings.Default.FTP_Dateiname;
        Console.WriteLine("Starte Download von: " + ftpfullpath);
        using (WebClient request = new WebClient())
        {
            request.Credentials = new NetworkCredential(Properties.Settings.Default.FTP_User, Properties.Settings.Default.FTP_Passwort);
            byte[] fileData = request.DownloadData(ftpfullpath);

            using (FileStream file = File.Create(@path + "/tmp/" + Properties.Settings.Default.FTP_Dateiname))
            {
                file.Write(fileData, 0, fileData.Length);
                file.Close();
            }
            Console.WriteLine("Download abgeschlossen!");
        }

编辑
我的错误。修复了文件路径，仍然得到相同的错误。但是如果我连接FileZilla是确切的文件路径。

EDIT My mistake. Fixed the filepath, still getting the same error. But if I connect with FileZilla that's the exact file path.

推荐答案

最后通过使用System.Net.FtpClient（< a href =https://netftp.codeplex.com/releases/view/95632 =nofollow> https://netftp.codeplex.com/releases/view/95632 ），并使用以下内容代码

Finally found a solution by using System.Net.FtpClient (https://netftp.codeplex.com/releases/view/95632) and using the following code.

// aktueller pfad
        string apppath = Directory.GetCurrentDirectory();

        Console.WriteLine("Bereite Download von FTP Server vor!");

        using (var ftpClient = new FtpClient())
        {
            ftpClient.Host = Properties.Settings.Default.FTP_Server;
            ftpClient.Credentials = new NetworkCredential(Properties.Settings.Default.FTP_User, Properties.Settings.Default.FTP_Passwort);
            var destinationDirectory = apppath + "\\Input";

            ftpClient.Connect();

            var destinationPath = string.Format(@"{0}\{1}", destinationDirectory, Properties.Settings.Default.FTP_Dateiname);
            Console.WriteLine("Starte Download von " + Properties.Settings.Default.FTP_Dateiname + " nach " + destinationPath);
            using (var ftpStream = ftpClient.OpenRead(Properties.Settings.Default.FTP_Pfad + "/" + Properties.Settings.Default.FTP_Dateiname))
            using (var fileStream = File.Create(destinationPath , (int)ftpStream.Length))
            {
                var buffer = new byte[8 * 1024];
                int count;
                while ((count = ftpStream.Read(buffer, 0, buffer.Length)) > 0)
                {
                    fileStream.Write(buffer, 0, count);
                }
            }
        }

这篇关于C＃单文件FTP下载的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！