【12】FtpWebRequest上传下载

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下载文件

/// <summary>   /// 下载文件   /// </summary>   /// <param name="filename"></param>   private static void DownLoadFile(string filename)   {   FtpWebRequest req = (FtpWebRequest)WebRequest.Create("ftp://" + FtpAddress + "/" + filename);   req.Method = WebRequestMethods.Ftp.DownloadFile;   req.UseBinary = true;   req.UsePassive = true;   req.Credentials = new NetworkCredential(FtpUid, FtpPwd);   try  {   using (FtpWebResponse res = (FtpWebResponse)req.GetResponse())   {   string localfile = Path.Combine(LocalPath, filename);   FileStream fs = new FileStream(localfile, FileMode.Create, FileAccess.Write);   int buffer = 1024;  //1K缓冲   byte[] b = new byte[buffer];   int i = 0;   Stream stream = res.GetResponseStream();   while ((i = stream.Read(b, 0, buffer)) > 0)   {   fs.Write(b, 0, i);   }   }   Console.WriteLine(filename + " download!");   Log(filename + "下载成功");   }   catch (Exception ex)   {   Console.WriteLine(ex.ToString());   Log(ex.ToString());   }   finally  {   }   }

获取文件列表

/// <summary>   /// 获取FTP文件列表   /// </summary>   /// <returns></returns>   private static List<String> GetFileList()   {   List<string> list = new List<string>();   FtpWebRequest req = (FtpWebRequest)WebRequest.Create(new Uri("ftp://" + FtpAddress + FtpRemotePath));   req.Credentials = new NetworkCredential(FtpUid, FtpPwd);   req.Method = WebRequestMethods.Ftp.ListDirectory;   req.UseBinary = true;   req.UsePassive = true;   try  {   using (FtpWebResponse res = (FtpWebResponse)req.GetResponse())   {   using (StreamReader sr = new StreamReader(res.GetResponseStream()))   {   string s;   while ((s = sr.ReadLine()) != null)   {   list.Add(s);   }   }   }   }   catch (Exception ex)   {   Console.WriteLine(ex.ToString());   Log("下载文件列表失败:");   Log(ex.ToString());   }   return list;   }

上传文件

private static void UploadFile(string localFile)   {   FileInfo fi = new FileInfo(localFile);   FileStream fs = fi.OpenRead();   long length = fs.Length;   FtpWebRequest req = (FtpWebRequest)WebRequest.Create("ftp://" + FtpAddress + FtpRemotePath + fi.Name);   req.Credentials = new NetworkCredential(FtpUid, FtpPwd);   req.Method = WebRequestMethods.Ftp.UploadFile;   req.UseBinary = true;   req.ContentLength = length;   req.Timeout = 10 * 1000;   try  {   Stream stream = req.GetRequestStream();      int BufferLength = 2048; //2K   byte[] b = new byte[BufferLength];   int i;   while ((i = fs.Read(b, 0, BufferLength)) > 0)   {   stream.Write(b, 0, i);   }   stream.Close();   stream.Dispose();      }   catch (Exception ex)   {   Console.WriteLine(ex.ToString());   }      }

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