asp.net实现FTP客户端

下载文件

1. /// <summary>   
2.         /// 下载文件   
3.         /// </summary>   
4.         /// <param name="filename"></param>   
5.         private static void DownLoadFile(string filename)   
6.          {   
7.              FtpWebRequest req = (FtpWebRequest)WebRequest.Create("ftp://" + FtpAddress + "/" + filename);   
8.              req.Method = WebRequestMethods.Ftp.DownloadFile;   
9.              req.UseBinary = true;   
10.              req.UsePassive = true;   
11.              req.Credentials = new NetworkCredential(FtpUid, FtpPwd);   
12.             try  
13.              {   
14.                 using (FtpWebResponse res = (FtpWebResponse)req.GetResponse())   
15.                  {   
16.                     string localfile = Path.Combine(LocalPath, filename);   
17.                      FileStream fs = new FileStream(localfile, FileMode.Create, FileAccess.Write);   
18.                     int buffer = 1024;  //1K缓冲   
19.                     byte[] b = new byte[buffer];   
20.                     int i = 0;   
21.                      Stream stream = res.GetResponseStream();   
22.                     while ((i = stream.Read(b, 0, buffer)) > 0)   
23.                      {   
24.                          fs.Write(b, 0, i);   
25.                      }   
26.                  }   
27.                  Console.WriteLine(filename + " download!");   
28.                  Log(filename + "下载成功");   
29.   
30.              }   
31.             catch (Exception ex)   
32.              {   
33.                  Console.WriteLine(ex.ToString());   
34.                  Log(ex.ToString());   
35.              }   
36.             finally  
37.              {   
38.   
39.              }   
40.          }  

/// <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

1. /// <summary>   
2.         /// 获取FTP文件列表   
3.         /// </summary>   
4.         /// <returns></returns>   
5.         private static List<String> GetFileList()   
6.          {   
7.              List<string> list = new List<string>();   
8.              FtpWebRequest req = (FtpWebRequest)WebRequest.Create(new Uri("ftp://" + FtpAddress + FtpRemotePath));   
9.              req.Credentials = new NetworkCredential(FtpUid, FtpPwd);   
10.              req.Method = WebRequestMethods.Ftp.ListDirectory;   
11.              req.UseBinary = true;   
12.              req.UsePassive = true;   
13.             try  
14.              {   
15.                 using (FtpWebResponse res = (FtpWebResponse)req.GetResponse())   
16.                  {   
17.                     using (StreamReader sr = new StreamReader(res.GetResponseStream()))   
18.                      {   
19.                         string s;   
20.                         while ((s = sr.ReadLine()) != null)   
21.                          {   
22.   
23.                              list.Add(s);   
24.                          }   
25.                      }   
26.                  }   
27.              }   
28.             catch (Exception ex)   
29.              {   
30.                  Console.WriteLine(ex.ToString());   
31.                  Log("下载文件列表失败:");   
32.                  Log(ex.ToString());   
33.              }   
34.             return list;   
35.   
36.          }  

/// <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

1. private static void UploadFile(string localFile)   
2.          {   
3.              FileInfo fi = new FileInfo(localFile);   
4.              FileStream fs = fi.OpenRead();   
5.             long length = fs.Length;   
6.              FtpWebRequest req = (FtpWebRequest)WebRequest.Create("ftp://" + FtpAddress + FtpRemotePath + fi.Name);   
7.              req.Credentials = new NetworkCredential(FtpUid, FtpPwd);   
8.              req.Method = WebRequestMethods.Ftp.UploadFile;   
9.              req.UseBinary = true;   
10.              req.ContentLength = length;   
11.              req.Timeout = 10 * 1000;   
12.             try  
13.              {   
14.                  Stream stream = req.GetRequestStream();   
15.                    
16.                 int BufferLength = 2048; //2K   
17.                 byte[] b = new byte[BufferLength];   
18.                 int i;   
19.                 while ((i = fs.Read(b, 0, BufferLength)) > 0)   
20.                  {   
21.                      stream.Write(b, 0, i);   
22.                  }   
23.                  stream.Close();   
24.                  stream.Dispose();   
25.                    
26.              }   
27.             catch (Exception ex)   
28.              {   
29.                  Console.WriteLine(ex.ToString());   
30.              }   
31.                
32.          }