简单的C# Socket 通讯，可传文件
来源：互联网 发布：安卓数据库删除数据 编辑：程序博客网 时间：2024/04/29 08:41
三个项目：服务端XJFtpServer，客户端XJFtpServerClient，公共程序集XJFtpServerLib
先是公共程序集：
public class FtpServerDefine { public const int LISTEN_PORT = 5000; public const int MESSAGE_LENGTH=419; } public enum MsgCommand { None, Login, Exit, List, Upload, Download, Msg, DirInfo, File, Close } public enum MsgSendState { None, Single, Start, Sending, End } public enum MsgType { None, Text, Class, File } [Serializable] public class Message { public MsgCommand Command; public MsgType Type; public MsgSendState SendState; public int DataLength; public Message() { Command = MsgCommand.None; Type = MsgType.None; SendState = MsgSendState.None; DataLength = 0; } } [Serializable] public class UserInfo { public string Name; public string Password; public UserInfo() { Name = string.Empty; Password = string.Empty; } } [Serializable] public class PathInfo { public string Path; public PathInfo() { Path = string.Empty; } } [Serializable] public class DirectoryInfo { public string Name; public string FullPath; public long Size; public DateTime CreateTime; public DateTime LastAccessTime; public List<string> SubDirectory; public List<string> Files; public DirectoryInfo() { SubDirectory = new List<string>(); Files = new List<string>(); } public override string ToString() { string str = string.Empty; str += string.Format("Name:{0}\tFullPath:{1}\tSize:{2}\tCreateTime:{3}\tLastAccessTime:{4}" , Name , FullPath , Size , CreateTime.ToString("yyyy-MM-dd HH:mm:ss") , LastAccessTime.ToString("yyyy-MM-dd HH:mm:ss")); return str; } } [Serializable] public class FileInfo { public string Name; public string FullName; public long Size; public DateTime CreateTime; public DateTime LastAccessTime; public FileInfo() { } public override string ToString() { return string.Format("Name:{0}\tFullName:{1}\tSize:{2}\tCreateTime:{3}\tLastUpdateTime:{4}" , Name , FullName , Size , CreateTime.ToString("yyyy-MM-dd HH:mm:ss") , LastAccessTime.ToString("yyyy-MM-dd HH:mm:ss")); } } [Serializable] public class CloseInfo { /// <summary> /// Close type /// 0 Unkown close request /// 1 Server close request /// 2 Client close request /// </summary> public int Type; public string Message; public CloseInfo() { Type = 0; Message = string.Empty; } } public class Utils { public static byte[] Serialize<T>(T obj) { try { IFormatter formatter = new BinaryFormatter(); MemoryStream stream = new MemoryStream(); formatter.Serialize(stream, obj); stream.Position = 0; byte[] buffer = new byte[stream.Length]; stream.Read(buffer, 0, buffer.Length); stream.Flush(); stream.Close(); return buffer; } catch (Exception ex) { throw new Exception(string.Format("Serialize fail.\r\n{0}", ex.Message)); } } public static T Deserialize<T>(T obj, byte[] data) { try { obj = default(T); IFormatter formatter = new BinaryFormatter(); byte[] buffer = data; MemoryStream stream = new MemoryStream(buffer); stream.Seek(0, SeekOrigin.Begin); obj = (T)formatter.Deserialize(stream); stream.Flush(); stream.Close(); } catch (Exception ex) { throw new Exception(string.Format("Deserialize fail.\r\n{0}", ex.Message)); } return obj; } }
public interface IFtpServer { event Action<string> Debug; int Port { get; set; } bool IsRunning { get; } string RootDir { get; set; } bool Start(); bool Start(int port); bool Stop(); void Dispose(); } public interface IFtpSession { event Action<string, string> Debug; event Action<string> Disconnected; string RootDir { get; set; } string CurrentDir { get; set; } string Client { get; set; } bool Start(); bool Close(); void Dispose(); } public interface IFtpClient:IDisposable { event Action<string, string> Debug; event Action<string, Message, byte[]> MessageReceived; string Host { get; set; } int Port { get; set; } bool Connect(); bool Connect(string host, int port); bool Close(); bool Send(Message message, int length, byte[] data); void Dispose(); }
服务端：
class FtpServer : IFtpServer { private TcpListener mFtpListener; private List<FtpSession> mFtpSessions; private int mCheckSessionInterval; private Timer mCheckActiveTimer; private int mListenPort; private bool mIsRunning; private string mRootDir; public FtpServer() { mFtpSessions = new List<FtpSession>(); mCheckSessionInterval = Common.CHECK_CLIENT_INTEVAL; mListenPort = FtpServerDefine.LISTEN_PORT; mIsRunning = false; mRootDir = AppDomain.CurrentDomain.BaseDirectory; } private void SubAcceptClient(IAsyncResult result) { try { TcpListener listener = result.AsyncState as TcpListener; Socket socketClient = listener.EndAcceptSocket(result); SubDebug(string.Format("New client connected.\tClient:{0}", socketClient.RemoteEndPoint)); FtpSession session = new FtpSession(socketClient); session.Debug += new Action<string, string>(session_Debug); session.Disconnected += new Action<string>(session_Disconnected); session.RootDir = mRootDir; mFtpSessions.Add(session); session.Start(); listener.BeginAcceptSocket(SubAcceptClient, listener); } catch (Exception ex) { SubDebug(string.Format("Accept client fail.\tAccept client breaked.")); mIsRunning = false; } } void session_Disconnected(string client) { try { SubDebug(string.Format("Session:{0} disconnected.", client)); FtpSession session = mFtpSessions.Where(s => s.Client == client).First(); mFtpSessions.Remove(session); SubDebug(string.Format("Session:{0} has removed.", client)); session.Dispose(); } catch (Exception ex) { SubDebug(string.Format("Remove session fail.\r\n{0}", ex.ToString())); } } void session_Debug(string client, string msg) { SubDebug(string.Format("Session:{0}\t{1}", client, msg)); } void mCheckActiveTimer_Elapsed(object sender, ElapsedEventArgs e) { SubDebug(string.Format("Check online client.\tCount:{0}", mFtpSessions.Count)); try { for (int i = mFtpSessions.Count - 1; i >= 0; i--) { FtpSession session = mFtpSessions[i]; SubDebug(string.Format("Online client:{0}", session.Client)); if (session.LastActiveTime.AddSeconds(20) < DateTime.Now) { mFtpSessions.Remove(session); SubDebug(string.Format("Session:{0} has removed.", session.Client)); session.Close(); } } } catch { } } private void SubDebug(string msg) { if (Debug != null) { Debug(msg); } } #region IFtpServer 成员 public event Action<string> Debug; public int Port { get { return mListenPort; } set { mListenPort = value; } } public bool IsRunning { get { return mIsRunning; } } public string RootDir { get { return mRootDir; } set { mRootDir = value; } } public bool Start() { try { SubDebug(string.Format("Ftp server starting...")); if (mFtpListener != null) { try { mFtpListener.Stop(); mFtpListener = null; } catch { } } mFtpListener = new TcpListener(IPAddress.Any, mListenPort); mFtpListener.Start(); mIsRunning = true; SubDebug(string.Format("Listener started.\tLocal endpoint:{0}", mFtpListener.LocalEndpoint)); mFtpListener.BeginAcceptSocket(new AsyncCallback(SubAcceptClient), mFtpListener); mCheckActiveTimer = new Timer(mCheckSessionInterval * 1000); mCheckActiveTimer.Elapsed += new ElapsedEventHandler(mCheckActiveTimer_Elapsed); mCheckActiveTimer.Start(); SubDebug(string.Format("Check active timer started.")); SubDebug(string.Format("Ftp Server started.\tRootDir:{0}", mRootDir)); return true; } catch (Exception ex) { SubDebug(string.Format("Ftp server start fail.\r\n{0}", ex.ToString())); return false; } } public bool Start(int port) { mListenPort = port; return Start(); } public bool Stop() { Dispose(); SubDebug(string.Format("Ftp server stopped.")); return true; } public void Dispose() { if (mFtpSessions != null) { foreach (FtpSession session in mFtpSessions) { session.Dispose(); } mFtpSessions.Clear(); SubDebug(string.Format("All session removed.")); } if (mFtpListener != null) { try { mFtpListener.Stop(); mFtpListener = null; SubDebug(string.Format("Ftp Listener stopped.")); } catch { } } if (mCheckActiveTimer != null) { try { mCheckActiveTimer.Stop(); SubDebug(string.Format("Check active timer stopped.")); } catch { } } } #endregion } class FtpSession : IFtpSession { private string mClient; private Socket mSocket; private bool mIsLogined; private string mRootDir; private string mCurrentDir; private byte[] mMsgBuffer; private byte[] mDataBuffer; private int mMsgLength; private DateTime mLastActiveTime; public DateTime LastActiveTime { get { return mLastActiveTime; } } public FtpSession(Socket socket) { mSocket = socket; mClient = mSocket.RemoteEndPoint.ToString(); mIsLogined = false; mRootDir = AppDomain.CurrentDomain.BaseDirectory; mCurrentDir = string.Empty; mMsgLength = FtpServerDefine.MESSAGE_LENGTH; mMsgBuffer = new byte[mMsgLength]; mLastActiveTime = DateTime.Now; } private void SubReceiveMessage(IAsyncResult result) { mLastActiveTime = DateTime.Now; int iReceiveLength = 0; Socket socket = result.AsyncState as Socket; try { iReceiveLength = socket.EndReceive(result); } catch (Exception ex) { SocketException sex = ex as SocketException; if (sex != null) { SubDebug(string.Format("End receive message fail.\tClient disconected.\tReceive message break")); SubDisconnected(); } else { SubDebug(string.Format("End receive message fail.\tReceive message break.")); } return; } Message message = new Message(); int dataLength = 0; if (iReceiveLength == mMsgLength) { try { message = Utils.Deserialize<Message>(message, mMsgBuffer); dataLength = message.DataLength; mDataBuffer = new byte[dataLength]; } catch (Exception ex) { SubDebug(string.Format("Receive message fail.\r\n{0}", ex.ToString())); } } else { SubDebug(string.Format("Receive message length invalid.\tLength:{0}\tReceive message break.", iReceiveLength)); } try { if (dataLength > 0) { socket.BeginReceive(mDataBuffer, 0, dataLength, SocketFlags.None, new AsyncCallback(SubReceiveData), message); } else { socket.BeginReceive(mMsgBuffer, 0, mMsgLength, SocketFlags.None, new AsyncCallback(SubReceiveMessage), socket); } } catch (Exception ex) { SocketException sex = ex as SocketException; if (sex != null) { SubDebug(string.Format("Begin receive fail.\tClient disconnected.")); SubDisconnected(); } else { SubDebug(string.Format("Begin receive fail.\tReceive message break.")); } } } private void SubReceiveData(IAsyncResult result) { int iReceiveLength = 0; Socket socket; Message message; try { socket = mSocket; message = result.AsyncState as Message; iReceiveLength = socket.EndReceive(result); } catch (Exception ex) { SocketException sex = ex as SocketException; if (sex != null) { SubDebug(string.Format("End receive data fail.\tClient disconected.\tReceive data break")); SubDisconnected(); } else { SubDebug(string.Format("End receive data fail.\tReceive data break.")); } return; } if (iReceiveLength == message.DataLength) { switch (message.Command) { case MsgCommand.Login: DealLogin(message, mDataBuffer); break; case MsgCommand.List: DealList(message, mDataBuffer); break; case MsgCommand.Download: DealDowloadCommand(mDataBuffer); break; case MsgCommand.Close: DealCloseCommand(message, mDataBuffer); break; default: SubDebug(string.Format("Invalid command.\tCommand:{0}", message.Command)); break; } } else { SubDebug(string.Format("Receive data length invalid.\tLength:{0}\tNeed:{1}\tReceive data breaked.", iReceiveLength, message.DataLength)); } try { socket.BeginReceive(mMsgBuffer, 0, mMsgLength, SocketFlags.None, new AsyncCallback(SubReceiveMessage), socket); } catch (Exception ex) { SocketException sex = ex as SocketException; if (sex != null) { SubDebug(string.Format("Begin receive fail.\tClient disconnected.")); SubDisconnected(); } else { SubDebug(string.Format("Begin receive fail.\tReceive message break.")); } } } private bool SendMessage(Message message, int length, byte[] data) { if (mSocket == null && !mSocket.Connected) { SubDebug(string.Format("Send message fail.\tMsg:{0}\tSocket is null or not connected.", message.Command)); return false; } try { message.DataLength = length; byte[] bMsg = Utils.Serialize<Message>(message); mSocket.Send(bMsg); mSocket.Send(data, length, SocketFlags.None); mLastActiveTime = DateTime.Now; } catch (Exception ex) { //SubDebug(string.Format("Send message fail.\tMsg:{0}\r\n{1}", message.Command, ex.ToString())); return false; } return true; } private bool DealLogin(Message message, byte[] data) { SubDebug(string.Format("Deal login command.")); try { UserInfo userInfo = new UserInfo(); userInfo = Utils.Deserialize<UserInfo>(userInfo, data); Message retMessage = new Message(); retMessage.Command = MsgCommand.Msg; retMessage.Type = MsgType.Text; byte[] msg; if (userInfo.Name != "administrator") { msg = Encoding.UTF8.GetBytes("User not exist."); SendMessage(retMessage, msg.Length, msg); return false; } if (userInfo.Password != "voicecyber") { msg = Encoding.UTF8.GetBytes("Password error."); SendMessage(retMessage, msg.Length, msg); return false; } mIsLogined = true; msg = Encoding.UTF8.GetBytes(string.Format("{0}\t Logined", userInfo.Name)); SendMessage(retMessage, msg.Length, msg); SubDebug(string.Format("{0} Logined.", userInfo.Name)); return true; } catch (Exception ex) { SubDebug(string.Format("Deal Login command fail.\r\n{0}", ex.ToString())); return false; } } private bool DealList(Message message, byte[] data) { SubDebug(string.Format("Deal list command.")); try { Message retMessage = new Message(); retMessage.Command = MsgCommand.Msg; retMessage.Type = MsgType.Text; byte[] retData; if (!mIsLogined) { retData = Encoding.UTF8.GetBytes("Not login."); SendMessage(retMessage, retData.Length, retData); return false; } PathInfo pathInfo = new PathInfo(); pathInfo = Utils.Deserialize<PathInfo>(pathInfo, data); string path = pathInfo.Path; path = System.IO.Path.Combine(mRootDir, mCurrentDir, path); if (!System.IO.Directory.Exists(path)) { retData = Encoding.UTF8.GetBytes(string.Format("Directory not exist.\t{0}", path)); SendMessage(retMessage, retData.Length, retData); return false; } DirectoryInfo dirInfo = GetDirInfo(path); retMessage.Command = MsgCommand.DirInfo; retMessage.Type = MsgType.Class; retData = Utils.Serialize<DirectoryInfo>(dirInfo); SendMessage(retMessage, retData.Length, retData); return true; } catch (Exception ex) { SubDebug(string.Format("Deal List command fail.\r\n{0}", ex.ToString())); return false; } } private bool DealDowloadCommand(byte[] data) { SubDebug(string.Format("Deal Download command.")); try { PathInfo pathInfo = new PathInfo(); pathInfo = Utils.Deserialize<PathInfo>(pathInfo, data); Message retMessage = new Message(); retMessage.Command = MsgCommand.Msg; retMessage.Type = MsgType.Text; byte[] msg; string filePath = System.IO.Path.Combine(mRootDir, pathInfo.Path); if (!System.IO.File.Exists(filePath)) { msg = Encoding.UTF8.GetBytes(string.Format("File not exist.\t{0}", filePath)); SendMessage(retMessage, msg.Length, msg); return false; } using (System.IO.FileStream fs = new System.IO.FileStream(filePath, System.IO.FileMode.Open, System.IO.FileAccess.Read)) { long iLength = fs.Length; byte[] buffer = new byte[1024]; int iRead = 0; while (true) { iRead = fs.Read(buffer, 0, 1024); if (iRead <= 0) { break; } if (iRead < 1024) { retMessage.Command = MsgCommand.File; retMessage.Type = MsgType.File; retMessage.SendState = MsgSendState.End; SendMessage(retMessage, iRead, buffer); break; } retMessage.Command = MsgCommand.File; retMessage.Type = MsgType.File; retMessage.SendState = MsgSendState.Sending; SendMessage(retMessage, 1024, buffer); } } return true; } catch (Exception ex) { SubDebug(string.Format("Deal Download command fail.\r\n{0}", ex.ToString())); return false; } } private bool DealCloseCommand(Message message, byte[] data) { SubDebug(string.Format("Deal Close command.")); try { CloseInfo closeInfo = new CloseInfo(); closeInfo = Utils.Deserialize<CloseInfo>(closeInfo, data); SubDebug(string.Format("Receive close command.\tType:{0}\tMessage:{1}", closeInfo.Type, closeInfo.Message)); Close(); SubDisconnected(); return true; } catch (Exception ex) { SubDebug(string.Format("Deal Close command fail.\r\n{0}", ex.ToString())); return false; } } private DirectoryInfo GetDirInfo(string path) { System.IO.DirectoryInfo dirInfo = new System.IO.DirectoryInfo(path); DirectoryInfo diretoryInfo = new DirectoryInfo(); diretoryInfo.Name = dirInfo.Name; diretoryInfo.FullPath = dirInfo.FullName; //diretoryInfo.CreateTime = dirInfo.CreationTime; //diretoryInfo.LastAccessTime = dirInfo.LastAccessTime; diretoryInfo.Size = 0; foreach (System.IO.DirectoryInfo subDir in dirInfo.GetDirectories()) { DirectoryInfo subDirectory = GetDirInfo(subDir.FullName); diretoryInfo.Size += subDirectory.Size; //diretoryInfo.SubDirectory.Add(subDirectory); diretoryInfo.SubDirectory.Add(subDirectory.Name); } foreach (System.IO.FileInfo subFile in dirInfo.GetFiles()) { FileInfo fileInfo = new FileInfo(); fileInfo.Name = subFile.Name; fileInfo.FullName = subFile.FullName; fileInfo.Size = subFile.Length; //fileInfo.CreateTime = subFile.CreationTime; //fileInfo.LastAccessTime = subFile.LastAccessTime; diretoryInfo.Size += fileInfo.Size; //diretoryInfo.Files.Add(fileInfo); diretoryInfo.Files.Add(fileInfo.Name); } return diretoryInfo; } private void SubDebug(string msg) { if (Debug != null) { Debug(mClient, msg); } } private void SubDisconnected() { if (Disconnected != null) { Disconnected(mClient); } } #region IFtpSession 成员 public event Action<string, string> Debug; public event Action<string> Disconnected; public string RootDir { get { return mRootDir; } set { mRootDir = value; } } public string CurrentDir { get { return mCurrentDir; } set { mCurrentDir = value; } } public string Client { get { return mClient; } set { mClient = value; } } public bool Start() { if (mSocket == null || !mSocket.Connected) { SubDebug(string.Format("Session start fail.\tSocket is null or not connected.")); return false; } try { mSocket.BeginReceive(mMsgBuffer, 0, mMsgLength, SocketFlags.None, new AsyncCallback(SubReceiveMessage), mSocket); } catch (Exception ex) { SocketException sex = ex as SocketException; if (sex != null) { SubDebug(string.Format("Begin receive fail.\tClient disconnected.")); SubDisconnected(); } else { SubDebug(string.Format("Begin receive fail.\tReceive message break.")); } return false; } Message message = new Message(); message.Command = MsgCommand.Msg; message.Type = MsgType.Text; byte[] data = Encoding.UTF8.GetBytes(string.Format("Welcome MDMSFtpServer!\tCurrent directory:{0}", mCurrentDir)); SendMessage(message, data.Length, data); return true; } public bool Close() { if (mSocket != null && mSocket.Connected) { try { mSocket.Close(); SubDebug(string.Format("Socket closed.")); } catch (Exception ex) { SubDebug(string.Format("Socket close fail.\r\n{0}", ex.ToString())); return false; } } return true; } public void Dispose() { if (mSocket != null) { try { mSocket.Close(); } catch { } } } #endregion }
客户端：
public class FtpClient : IFtpClient { private string mClient; private Socket mSocket; private string mHost; private int mPort; private int mMsgLength; private byte[] mBuffer; private int mReceiveLength; private bool mIsReceiveMessage; private Message mMessage; public FtpClient() { mClient = string.Empty; mHost = string.Empty; mPort = FtpServerDefine.LISTEN_PORT; mMsgLength = FtpServerDefine.MESSAGE_LENGTH; mIsReceiveMessage = true; mMessage = new Message(); } public FtpClient(string client) : this() { mClient = client; } public bool Send(Message message, byte[] data) { return Send(message, data.Length, data); } private bool ConnectToServer() { try { Dispose(); mSocket = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp); mSocket.Connect(mHost, mPort); if (mSocket.Connected) { mReceiveLength = mMsgLength; mBuffer = new byte[mReceiveLength]; mIsReceiveMessage = true; mSocket.BeginReceive(mBuffer, 0, mReceiveLength, SocketFlags.None, new AsyncCallback(SubReceiveMessage), mSocket); return true; } else { return false; } } catch (Exception ex) { SocketException sex = ex as SocketException; if (sex != null) { SubDebug(string.Format("Begin receive fail.\tClient disconnected.")); } SubDebug(string.Format("Connect to server fail.\r\n{0}", ex.ToString())); return false; } } private void SubReceiveMessage(IAsyncResult result) { int iReceiveLength = 0; Socket socket = result.AsyncState as Socket; try { iReceiveLength = socket.EndReceive(result); } catch (Exception ex) { SocketException sex = ex as SocketException; if (sex != null) { SubDebug(string.Format("End receive message fail.\tServer disconected.\tReceive data break")); } else { SubDebug(string.Format("End receive message fail.\tReceive data break.")); } return; } if (iReceiveLength == 0) { SubDebug(string.Format("Receive 0 bytes.\tReceive message break.")); return; } int index = 0; if (iReceiveLength < mReceiveLength) { mReceiveLength = mReceiveLength - iReceiveLength; index = iReceiveLength; } else { if (mIsReceiveMessage) { mIsReceiveMessage = false; Message message = new Message(); message = Utils.Deserialize<Message>(message, mBuffer); mMessage = message; mReceiveLength = message.DataLength; mBuffer = new byte[mReceiveLength]; } else { mIsReceiveMessage = true; SubMessageReceived(mMessage, mBuffer); mReceiveLength = mMsgLength; mBuffer = new byte[mReceiveLength]; } } try { socket.BeginReceive(mBuffer, index, mReceiveLength, SocketFlags.None, new AsyncCallback(SubReceiveMessage), socket); } catch (Exception ex) { SocketException sex = ex as SocketException; if (sex != null) { SubDebug(string.Format("Begin receive fail.\tClient disconnected.")); } else { SubDebug(string.Format("Begin receive fail.\tReceive message break.")); } } } private bool SendMessage(Message message, int length, byte[] data) { try { message.DataLength = length; byte[] bMsg = Utils.Serialize<Message>(message); mSocket.Send(bMsg); mSocket.Send(data, length, SocketFlags.None); } catch (Exception ex) { SubDebug(string.Format("Send message fail.\tMsg:{0}\r\n{1}", message.Command, ex.ToString())); return false; } return true; } private void SubMessageReceived(Message message, byte[] data) { if (MessageReceived != null) { MessageReceived(mClient, message, data); } } public void SubDebug(string msg) { if (Debug != null) { Debug(mClient, msg); } } #region IFtpClient 成员 public event Action<string, string> Debug; public event Action<string, Message, byte[]> MessageReceived; public string Host { get { return mHost; } set { mHost = value; } } public int Port { get { return mPort; } set { mPort = value; } } public bool Connect() { if (!ConnectToServer()) { return false; } return true; } public bool Connect(string host, int port) { mHost = host; mPort = port; return Connect(); } public bool Close() { if (mSocket != null && mSocket.Connected) { try { mSocket.Close(); SubDebug(string.Format("Socket closed.")); } catch (Exception ex) { SubDebug(string.Format("Socket close fail.\r\n{0}", ex.ToString())); return false; } } return true; } public bool Send(Message message, int length, byte[] data) { return SendMessage(message, length, data); } public void Dispose() { if (mSocket != null && mSocket.Connected) { try { mSocket.Close(); mSocket = null; } catch { } } } #endregion }
文件操作：
public class FileOperator : IDisposable { public event Action<string> Debug; private string mPath; private FileStream mFileStream; public FileOperator() { } public bool Create(string path) { if (!Path.IsPathRooted(path)) { mPath = Path.Combine(AppDomain.CurrentDomain.BaseDirectory, path); } else { mPath = path; } try { if (File.Exists(mPath)) { File.Delete(mPath); } mFileStream = new FileStream(mPath, FileMode.OpenOrCreate, FileAccess.Write); return true; } catch (Exception ex) { SubDebug(string.Format("Create file fail.\r\n{0}", ex.ToString())); return false; } } public bool WriteData(int length, byte[] data) { try { if (mFileStream == null) { mFileStream = new FileStream(mPath, FileMode.OpenOrCreate, FileAccess.Write); } mFileStream.Write(data, 0, length); return true; } catch (Exception ex) { SubDebug(string.Format("Write data fail.\r\n{0}", ex.ToString())); return false; } } public bool Close() { try { if (mFileStream != null) { mFileStream.Close(); mFileStream = null; } return true; } catch (Exception ex) { SubDebug(string.Format("Write data fail.\r\n{0}", ex.ToString())); return false; } } private void SubDebug(string msg) { if (Debug != null) { Debug(msg); } } #region IDisposable 成员 public void Dispose() { if (mFileStream != null) { try { mFileStream.Close(); mFileStream = null; } catch { } } } #endregion }
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