Ftp数据传输

白森

/// /// FTP Client/// public class FTPClient{#region 构造函数/// /// 缺省构造函数/// public FTPClient(){strRemoteHost = "";strRemotePath = "";strRemoteUser = "";strRemotePass = "";strRemotePort = 21;bConnected = false;}/// /// 构造函数/// /// /// /// /// /// public FTPClient(string remoteHost, string remotePath, string remoteUser, string remotePass, int remotePort){strRemoteHost = remoteHost;strRemotePath = remotePath;strRemoteUser = remoteUser;strRemotePass = remotePass;strRemotePort = remotePort;if (!Connect())return;}#endregion//public static void Main(string[] args)//{//    FTPClient fc = new FTPClient("172.22.1.15", "/bcgz/x25/awstod", "zxt", "123456", 21);//    //fc.ChDir("/bcgz/x25/awstod");//    //Console.WriteLine(fc.RemotePath);//    fc.Get("S5290900.A1053", @"F:/ttt", "");//    // fc.getawsFile("S5290400.A1053");//}#region 登陆/// /// FTP服务器IP地址/// private string strRemoteHost;public string RemoteHost{get{return strRemoteHost;}set{strRemoteHost = value;}}/// /// FTP服务器端口/// private int strRemotePort;public int RemotePort{get{return strRemotePort;}set{strRemotePort = value;}}/// /// 当前服务器目录/// private string strRemotePath;public string RemotePath{get{return strRemotePath;}set{strRemotePath = value;}}/// /// 登录用户账号/// private string strRemoteUser;public string RemoteUser{set{strRemoteUser = value;}}/// /// 用户登录密码/// private string strRemotePass;public string RemotePass{set{strRemotePass = value;}}/// /// 是否登录/// private Boolean bConnected;public bool Connected{get{return bConnected;}}#endregion#region 链接/// /// 建立连接 /// public bool Connect(){try{socketControl = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);IPEndPoint ep = new IPEndPoint(IPAddress.Parse(RemoteHost), strRemotePort);// 链接try{socketControl.Connect(ep);}catch (Exception){throw new IOException("无法连接远程FTP服务器。");}// 获取应答码ReadReply();if (iReplyCode != 220){DisConnect();throw new IOException(strReply.Substring(4));}// 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ChangeWorkPath(strRemotePath);return true;  }catch(Exception ex){WellCareShare.WriteLog("FTP连接异常", "原因：" + ex.Message);return false;}}/// /// 关闭连接/// public void DisConnect(){if (socketControl != null){SendCommand("QUIT");}CloseSocketConnect();}#endregion#region 传输模式/// /// 传输模式:二进制类型、ASCII类型/// public enum TransferType { Binary, ASCII };/// /// 设置传输模式/// /// 传输模式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;}}/// /// 获得传输模式/// /// 传输模式public TransferType GetTransferType(){return trType;}#endregion#region 文件操作/// /// 获得文件列表/// /// 文件名的匹配字符串/// public string[] Dir(string strMask){// 建立链接//if(bConnected)if (bConnected){DisConnect();}if (!Connect())return null ;//建立进行数据连接的socketSocket socketData = CreateDataSocket();//传送命令 NLSL  PWDSendCommand("LIST " + strMask);//分析应答代码if (!(iReplyCode == 150 || iReplyCode == 125 || iReplyCode == 226)){return null;// throw new IOException(strReply.Substring(4));}//获得结果strMsg = "";while (true){int iBytes = socketData.Receive(buffer, buffer.Length, 0);string ddd = "";for (int i = 0; i < buffer.Length; i++){ddd += buffer.ToString() + ",";}//strMsg +=ASCII.GetString(buffer, 0, iBytes);//strMsg += Encoding.Default.GetString(buffer);//  strMsg += Encoding.GetEncoding("gb2312").GetString(buffer);strMsg += Encoding.GetEncoding("gb2312").GetString(buffer);//ASCII.GetString(buffer, 0, iBytes);strMsg = strMsg.Replace("/0", "");if (iBytes < buffer.Length){break;}}char[] seperator = { '/r', '/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){return null;// throw new IOException(strReply.Substring(4));}}List templist = new List();for (int ii = 0; ii < strsFileList.Length; ++ii){if (!strsFileList[ii].Equals("")){templist.Add(strsFileList[ii]);}}string[] strsFileList_temp = new string[templist.Count];templist.CopyTo(strsFileList_temp, 0);DisConnect();return strsFileList_temp;}/// /// 获取文件大小/// /// 文件名/// 文件大小public long GetFileSize(string strFileName){if (!bConnected){if (!Connect())return 0;}strFileName = "//WIMFileShare//sdfsdfsdfsdf.txt";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;}/// /// 删除/// /// 待删除文件名public void Delete(string strFileName){if (!bConnected){if (!Connect())return;}//strFileName = "//192.168.0.151//WIMFileShare//yyy.txt";SendCommand("DELE " + strFileName);if (iReplyCode != 250){throw new IOException(strReply.Substring(4));}}/// /// 重命名文件或文件夹 (如果新文件名与已有文件重名,将覆盖已有文件)/// /// 旧文件名/// 新文件名public void Rename(string strOldFileName, string strNewFileName){if (!bConnected){if (!Connect())return;}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#region 上传和下载/// /// 下载一批文件/// /// 文件名的匹配字符串/// 本地目录(不得以/结束)public void Get(string strFileNameMask, string strFolder){if (!bConnected){if(!Connect())return;}string[] strFiles = Dir(strFileNameMask);if (strFiles == null || strFiles.Length < 1) return;foreach (string strFile in strFiles){if (!strFile.Equals(""))//一般来说strFiles的最后一个元素可能是空字符串{Get(strFile, strFolder, strFile);}}}///// ///// 下载文件夹及其子内容///// ///// 文件名的匹配字符串 全部下载设为（*）///// 本地目录(不得以/结束)///// 服务器当前工作路径///// 当前路径的父路径//public void Get(string strFileNameMask, string strlocalFolder,string ServerRoot,string Parent)//{//    if (!bConnected)//    {//        Connect();//    }//    string[] strFiles = Dir(strFileNameMask);//    DataTable ds =//    if (strFiles == null || strFiles.Length < 1) return;//    foreach (string strFile in strFiles)//    {//        if (!strFile.Equals(""))//一般来说strFiles的最后一个元素可能是空字符串//        {//            Get(strFile, strFolder, strFile);//        }//    }//}private int readUnsignedShort(int ch1, int ch2){//int ch1 = 0;//int ch2 = 0;try{//ch1 = sr.ReadByte();//ch2 = sr.ReadByte();if ((ch1 | ch2) < 0)Console.WriteLine(ch1 + ch2 + " is < 0");if ((ch2 & 0x00000080) > 0){return (int)((ch2