FTP文件操作 上传文、 下载文件、删除文件 、创建目录

?

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72

/// <summary>         /// FTP上传文件         /// </summary>         /// <param name="fileUpload">上传控件</param>         /// <param name="ftpServerIP">上传文件服务器IP</param>         /// <param name="ftpUserID">服务器用户名</param>         /// <param name="ftpPassword">服务器密码</param>         /// <returns></returns>         public  string Upload(FileUpload fileUpload, string ftpServerIP, string ftpUserID, string ftpPassword)         {             string filename = fileUpload.FileName;             string sRet = "上传成功！";             FileInfo fileInf = new FileInfo(fileUpload.PostedFile.FileName);             string uri = "ftp://" + ftpServerIP + "/" + filename;             FtpWebRequest reqFTP;               // 根据uri创建FtpWebRequest对象             reqFTP = (FtpWebRequest)FtpWebRequest.Create(new Uri(uri));               // ftp用户名和密码             reqFTP.Credentials = new NetworkCredential(ftpUserID, ftpPassword);               // 默认为true，连接不会被关闭             // 在一个命令之后被执行             reqFTP.KeepAlive = false;               // 指定执行什么命令             reqFTP.Method = WebRequestMethods.Ftp.UploadFile;               // 指定数据传输类型             reqFTP.UseBinary = true;             reqFTP.UsePassive = false;               // 上传文件时通知服务器文件的大小             reqFTP.ContentLength = fileInf.Length;               // 缓冲大小设置为2kb             int buffLength = 2048;               byte[] buff = new byte[buffLength];             int contentLen;               // 打开一个文件流 (System.IO.FileStream) 去读上传的文件             FileStream fs = fileInf.OpenRead();               try             {                 // 把上传的文件写入流                 Stream strm = reqFTP.GetRequestStream();                   // 每次读文件流的2kb                 contentLen = fs.Read(buff, 0, buffLength);                   // 流内容没有结束                 while (contentLen != 0)                 {                     // 把内容从file stream 写入 upload stream                     strm.Write(buff, 0, contentLen);                       contentLen = fs.Read(buff, 0, buffLength);                 }                   // 关闭两个流                 strm.Close();                 fs.Close();             }             catch (Exception ex)             {                 sRet = ex.Message;             }             return sRet;         }

　　

?

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66

/// <summary>         /// FTP下载文件         /// </summary>         /// <param name="userId">ftp用户名</param>         /// <param name="pwd">ftp密码</param>         /// <param name="ftpPath">ftp文件路径</param>         /// <param name="filePath">下载保存路径</param>         /// <param name="fileName">ftp文件名</param>         /// <returns></returns>         public string  Download(string userId, string pwd, string ftpPath, string filePath, string fileName)         {             string sRet = "下载成功！";              FtpWebRequest reqFTP;             try             {                 FileStream outputStream = new FileStream(filePath + fileName, FileMode.Create);                   // 根据uri创建FtpWebRequest对象                   reqFTP = (FtpWebRequest)FtpWebRequest.Create(new Uri(ftpPath + fileName));                   // 指定执行什么命令                  reqFTP.Method = WebRequestMethods.Ftp.DownloadFile;                   // 指定数据传输类型                  reqFTP.UseBinary = true;                 reqFTP.UsePassive = false;                   // ftp用户名和密码                  reqFTP.Credentials = new NetworkCredential(userId, pwd);                                   FtpWebResponse response = (FtpWebResponse)reqFTP.GetResponse();                   // 把下载的文件写入流                 Stream ftpStream = response.GetResponseStream();                   long cl = response.ContentLength;                   // 缓冲大小设置为2kb                  int bufferSize = 2048;                 int readCount;                 byte[] buffer = new byte[bufferSize];                   // 每次读文件流的2kb                  readCount = ftpStream.Read(buffer, 0, bufferSize);                 while (readCount > 0)                 {                     // 把内容从文件流写入                       outputStream.Write(buffer, 0, readCount);                     readCount = ftpStream.Read(buffer, 0, bufferSize);                 }                   //关闭两个流和ftp连接                 ftpStream.Close();                 outputStream.Close();                 response.Close();                 }             catch (Exception ex)             {                 sRet=ex.Message;             }               //返回下载结果（是否下载成功）             return sRet;         }

　　

?

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50

/// <summary>         /// FTP删除文件         /// </summary>         /// <param name="ftpPath">ftp文件路径</param>         /// <param name="userId">ftp用户名</param>         /// <param name="pwd">ftp密码</param>         /// <param name="fileName">ftp文件名</param>         /// <returns></returns>         public string DeleteFile(string ftpPath,string userId,string pwd, string fileName)         {             string sRet = "删除成功！";               FtpWebResponse Respose = null;             FtpWebRequest reqFTP = null;             Stream localfile = null;             Stream stream = null;             try             {                 //根据uri创建FtpWebRequest对象                  reqFTP = (FtpWebRequest)FtpWebRequest.Create(new Uri(string.Format(@"{0}{1}", ftpPath, fileName)));                   //提供账号密码的验证                  reqFTP.Credentials = new NetworkCredential(userId, pwd);                      //默认为true是上传完后不会关闭FTP连接                  reqFTP.KeepAlive = false;                      //执行删除操作                 reqFTP.Method = WebRequestMethods.Ftp.DeleteFile;                   Respose = (FtpWebResponse)reqFTP.GetResponse();                  }                       catch (Exception ex)             {                 sRet = ex.Message;             }               finally             {                 //关闭连接跟流                 if (Respose != null)                     Respose.Close();                 if (localfile != null)                     localfile.Close();                 if (stream != null)                     stream.Close();             }               //返回执行状态             return sRet;         }

　　

?

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41

/// <summary>         /// FTP创建目录         /// </summary>         /// <param name="dirName">目录名</param>         /// <param name="ftpServerIP">服务器地址</param>         /// <param name="ftpUserID">ftp用户名</param>         /// <param name="ftpPassword">ftp密码</param>         /// <returns></returns>         public  string CreateDir(string dirName, string ftpServerIP, string ftpUserID, string ftpPassword)         {             string sRet = "OK";             try             {                 string uri =  ftpServerIP + "/" + dirName;                 FtpWebRequest reqFTP;                   // 根据uri创建FtpWebRequest对象                   reqFTP = (FtpWebRequest)FtpWebRequest.Create(new Uri(uri));                   // ftp用户名和密码                  reqFTP.Credentials = new NetworkCredential(ftpUserID, ftpPassword);                   // 默认为true，连接不会被关闭                  // 在一个命令之后被执行                  reqFTP.KeepAlive = false;                   // 指定执行什么命令                  reqFTP.Method = WebRequestMethods.Ftp.MakeDirectory;                   // 指定数据传输类型                  reqFTP.UseBinary = true;                   FtpWebResponse respFTP = (FtpWebResponse)reqFTP.GetResponse();                 respFTP.Close();             }             catch (Exception ex)             {                 sRet = ex.Message;             }             return sRet;         }