.NET2.0实现FTP上传，下载文件(支持中文名)之二

.NET2.0实现FTP上传，下载文件(支持中文名)之二

Admin | 2007-12-1 14:31:18 | TrackRecord: 1803 Times | Tag标签：asp.net 打印本页

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// 登陆
   SendCommand("USER "+strRemoteUser);
   if( !(iReplyCode == 331 || iReplyCode == 230) )
   {
    CloseSocketConnect();//关闭连接
    throw new IOException(strReply.Substring(4));
   }
   if( iReplyCode != 230 )
   {
    SendCommand("PASS "+strRemotePass);
    if( !(iReplyCode == 230 || iReplyCode == 202) )
    {
     CloseSocketConnect();//关闭连接
     throw new IOException(strReply.Substring(4));
    }
   }
   bConnected = true;

   // 切换到目录
   ChDir(strRemotePath);
  }

  /// <summary>
  /// 关闭连接
  /// </summary>
  public void DisConnect()
  {
   if( socketControl != null )
   {
    SendCommand("QUIT");
   }
   CloseSocketConnect();
  }

#endregion

#region 传输模式

  /// <summary>
  /// 设置传输模式
  /// </summary>
  /// <param name="ttType">传输模式</param>
  public void SetTransferType(TransferType ttType)
  {
   if(ttType == TransferType.Binary)
   {
    SendCommand("TYPE I");//binary类型传输
   }
   else
   {
    SendCommand("TYPE A");//ASCII类型传输
   }
   if (iReplyCode != 200)
   {
    throw new IOException(strReply.Substring(4));
   }
   else
   {
    trType = ttType;
   }
  }

  /// <summary>
  /// 获得传输模式
  /// </summary>
  /// <returns>传输模式</returns>
  public TransferType GetTransferType()
  {
   return trType;
  }

#endregion

  #region 文件操作
  /// <summary>
  /// 获得文件列表
  /// </summary>
  /// <param name="strMask">文件名的匹配字符串</param>
  /// <returns></returns>
  public string[] Dir(string strMask)
  {
   // 建立链接
   if(!bConnected)
   {
    Connect();
   }

//建立进行数据连接的socket
Socket socketData = CreateDataSocket();

//传送命令
SendCommand("NLST " + strMask);

   //分析应答代码
   if(!(iReplyCode == 150 || iReplyCode == 125 || iReplyCode == 226))
   {
    throw new IOException(strReply.Substring(4));
   }

   //获得结果
   strMsg = "";
   while(true)
   {
    int iBytes = socketData.Receive(buffer, buffer.Length, 0);
    strMsg += ASCII.GetString(buffer, 0, iBytes);
    if(iBytes < buffer.Length)
    {
     break;
    }
   }
   char[] seperator = {'\n'};
   string[] strsFileList = strMsg.Split(seperator);
   socketData.Close();//数据socket关闭时也会有返回码
   if(iReplyCode != 226)
   {
    ReadReply();
    if(iReplyCode != 226)
    {
     throw new IOException(strReply.Substring(4));
    }
   }
   return strsFileList;
  }

  /// <summary>
  /// 获取文件大小
  /// </summary>
  /// <param name="strFileName">文件名</param>
  /// <returns>文件大小</returns>
  private long GetFileSize(string strFileName)
  {
   if(!bConnected)
   {
    Connect();
   }
   SendCommand("SIZE " + Path.GetFileName(strFileName));
   long lSize=0;
   if(iReplyCode == 213)
   {
    lSize = Int64.Parse(strReply.Substring(4));
   }
   else
   {
    throw new IOException(strReply.Substring(4));
   }
   return lSize;
  }

  /// <summary>
  /// 删除
  /// </summary>
  /// <param name="strFileName">待删除文件名</param>
  public void Delete(string strFileName)
  {
   if(!bConnected)
   {
    Connect();
   }
   SendCommand("DELE "+strFileName);
   if(iReplyCode != 250)
   {
    throw new IOException(strReply.Substring(4));
   }
  }

  /// <summary>
  /// 重命名(如果新文件名与已有文件重名,将覆盖已有文件)
  /// </summary>
  /// <param name="strOldFileName">旧文件名</param>
  /// <param name="strNewFileName">新文件名</param>
  public void Rename(string strOldFileName,string strNewFileName)
  {
   if(!bConnected)
   {
    Connect();
   }
   SendCommand("RNFR "+strOldFileName);
   if(iReplyCode != 350)
   {
    throw new IOException(strReply.Substring(4));
   }
   //  如果新文件名与原有文件重名,将覆盖原有文件
   SendCommand("RNTO "+strNewFileName);
   if(iReplyCode != 250)
   {
    throw new IOException(strReply.Substring(4));
   }
  }
  #endregion