SuperSocket 简单示例
这是一个SuperSocket 简单示例,包括服务端和客户端。
一、首先使用NuGet安装SuperSocket和SuperSocket.Engine
二、实现IRequestInfo(数据包):
数据包格式:
包头4个字节,前2个字节是请求命令,后2个字节是正文长度
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using SuperSocket.SocketBase.Protocol; using System; using System.Collections.Generic; using System.Linq; using System.Text; using System.Threading.Tasks; namespace SuperSocketServer { public class MyRequestInfo : IRequestInfo { public MyRequestInfo(byte[] header, byte[] bodyBuffer) { Key = ASCIIEncoding.ASCII.GetString(new byte[] { header[0], header[1] }); Data = bodyBuffer; } public string Key { get; set; } public byte[] Data { get; set; } public string Body { get { return Encoding.UTF8.GetString(Data); } } } }
三、实现FixedHeaderReceiveFilter(数据包解析):
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using SuperSocket.Facility.Protocol; using System; using System.Collections.Generic; using System.Linq; using System.Text; using System.Threading.Tasks; namespace SuperSocketServer { public class MyReceiveFilter : FixedHeaderReceiveFilter<MyRequestInfo> { public MyReceiveFilter() : base(4) { } protected override int GetBodyLengthFromHeader(byte[] header, int offset, int length) { return BitConverter.ToInt16(new byte[] { header[offset + 2], header[offset + 3] }, 0); } protected override MyRequestInfo ResolveRequestInfo(ArraySegment<byte> header, byte[] bodyBuffer, int offset, int length) { byte[] body = bodyBuffer.Skip(offset).Take(length).ToArray(); return new MyRequestInfo(header.Array, body); } } }
四、实现AppSession:
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using SuperSocket.SocketBase; using System; using System.Collections.Generic; using System.Linq; using System.Text; using System.Threading.Tasks; namespace SuperSocketServer { public class MySession : AppSession<MySession, MyRequestInfo> { public MySession() { } protected override void OnSessionStarted() { } protected override void OnInit() { base.OnInit(); } protected override void HandleUnknownRequest(MyRequestInfo requestInfo) { } protected override void HandleException(Exception e) { } protected override void OnSessionClosed(CloseReason reason) { base.OnSessionClosed(reason); } } }
五、实现AppServer:
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using SuperSocket.SocketBase; using SuperSocket.SocketBase.Config; using SuperSocket.SocketBase.Protocol; using System; using System.Collections.Generic; using System.Linq; using System.Text; using System.Threading.Tasks; using Utils; namespace SuperSocketServer { public class MyServer : AppServer<MySession, MyRequestInfo> { public MyServer() : base(new DefaultReceiveFilterFactory<MyReceiveFilter, MyRequestInfo>()) { this.NewSessionConnected += MyServer_NewSessionConnected; this.SessionClosed += MyServer_SessionClosed; } protected override bool Setup(IRootConfig rootConfig, IServerConfig config) { return base.Setup(rootConfig, config); } protected override void OnStarted() { base.OnStarted(); } protected override void OnStopped() { base.OnStopped(); } void MyServer_NewSessionConnected(MySession session) { LogHelper.Log("新客户端连接,SessionID=" + session.SessionID.Substring(session.SessionID.Length - 6).ToUpper()); } void MyServer_SessionClosed(MySession session, CloseReason value) { LogHelper.Log("客户端失去连接,SessionID=" + session.SessionID.Substring(session.SessionID.Length - 6).ToUpper() + ",原因:" + value); } } }
六、实现CommandBase<MySession, MyRequestInfo>:
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using SuperSocket.SocketBase.Command; using System; using System.Collections.Generic; using System.Linq; using System.Text; using System.Threading.Tasks; using Utils; namespace SuperSocketServer { public class EC : CommandBase<MySession, MyRequestInfo> { public override void ExecuteCommand(MySession session, MyRequestInfo requestInfo) { LogHelper.Log("客户端 " + session.SessionID.Substring(session.SessionID.Length - 6).ToUpper() + " 发来消息:" + requestInfo.Body); byte[] bytes = ASCIIEncoding.UTF8.GetBytes("消息收到"); session.Send(bytes, 0, bytes.Length); } } }
七、服务端Form1.cs代码:
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using SuperSocket.SocketBase.Config; using System; using System.Collections.Generic; using System.ComponentModel; using System.Data; using System.Drawing; using System.Linq; using System.Text; using System.Threading.Tasks; using System.Windows.Forms; using Utils; namespace SuperSocketServer { public partial class Form1 : Form { private MyServer _myServer; public Form1() { InitializeComponent(); LogHelper.Init(this, txtLog); } private void Form1_Load(object sender, EventArgs e) { _myServer = new MyServer(); ServerConfig serverConfig = new ServerConfig() { Port = 2021 }; _myServer.Setup(serverConfig); _myServer.Start(); } private void button1_Click(object sender, EventArgs e) { foreach (MySession session in _myServer.GetAllSessions()) { byte[] bytes = ASCIIEncoding.UTF8.GetBytes("服务端广播消息"); session.Send(bytes, 0, bytes.Length); } } } }
八、客户端Form1.cs代码:
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using System; using System.Collections.Generic; using System.ComponentModel; using System.Data; using System.Drawing; using System.IO; using System.Linq; using System.Net; using System.Net.Sockets; using System.Text; using System.Threading.Tasks; using System.Windows.Forms; namespace SuperSocketClient { public partial class Form1 : Form { private Socket _socket; private NetworkStream _socketStream; public Form1() { InitializeComponent(); } private void Form1_Load(object sender, EventArgs e) { EndPoint serverAddress = new IPEndPoint(IPAddress.Parse("127.0.0.1"), 2021); _socket = new Socket(serverAddress.AddressFamily, SocketType.Stream, ProtocolType.Tcp); _socket.Connect(serverAddress); _socketStream = new NetworkStream(_socket); //SocketAsyncEventArgs socketAsyncArgs = new SocketAsyncEventArgs(); //byte[] buffer = new byte[10240]; //socketAsyncArgs.SetBuffer(buffer, 0, buffer.Length); //socketAsyncArgs.Completed += ReciveAsync; //_socket.ReceiveAsync(socketAsyncArgs); Receive(_socket); } private void button1_Click(object sender, EventArgs e) { Task.Run(() => { Random rnd = new Random(); string cmd = "EC"; string msg = "测试消息00" + rnd.Next(0, 100).ToString("00"); Send(cmd, msg); }); } public void Send(string cmd, string msg) { byte[] cmdBytes = Encoding.ASCII.GetBytes(cmd); byte[] msgBytes = Encoding.UTF8.GetBytes(msg); byte[] lengthBytes = BitConverter.GetBytes((short)msgBytes.Length); _socketStream.Write(cmdBytes, 0, cmdBytes.Length); _socketStream.Write(lengthBytes, 0, lengthBytes.Length); _socketStream.Write(msgBytes, 0, msgBytes.Length); _socketStream.Flush(); Log("发送:" + msg); } private void ReciveAsync(object obj, SocketAsyncEventArgs e) { if (e.BytesTransferred > 0) { string data = ASCIIEncoding.UTF8.GetString(e.Buffer, 0, e.BytesTransferred); Log("接收:" + data); } } private void Receive(Socket socket) { Task.Factory.StartNew(() => { try { while (true) { byte[] buffer = new byte[10240]; int receiveCount = _socket.Receive(buffer, 0, buffer.Length, SocketFlags.None); if (receiveCount > 0) { string data = ASCIIEncoding.UTF8.GetString(buffer, 0, receiveCount); Log("接收:" + data); } } } catch (Exception ex) { Log("Receive出错:" + ex.Message + "\r\n" + ex.StackTrace); } }, TaskCreationOptions.LongRunning); } #region Log /// <summary> /// 输出日志 /// </summary> private void Log(string log) { if (!this.IsDisposed) { this.BeginInvoke(new Action(() => { txtLog.AppendText(DateTime.Now.ToString("HH:mm:ss.fff") + " " + log + "\r\n\r\n"); })); } } #endregion } }
辅助工具类LogHelper:
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using SuperSocketServer; using System; using System.Collections.Generic; using System.Linq; using System.Text; using System.Threading.Tasks; using System.Windows.Forms; namespace Utils { public class LogHelper { private static Form1 _frm; private static TextBox _txtLog; public static void Init(Form1 frm, TextBox txt) { _frm = frm; _txtLog = txt; } /// <summary> /// 输出日志 /// </summary> public static void Log(string log) { if (!_frm.IsDisposed) { _frm.BeginInvoke(new Action(() => { _txtLog.AppendText(DateTime.Now.ToString("HH:mm:ss.fff") + " " + log + "\r\n\r\n"); })); } } } }
测试截图:
问题:
1、客户端使用SocketAsyncEventArgs异步接收数据,第一次能收到数据,后面就收不到了,不知道什么原因,同步接收数据没问题
2、SuperSocket源码中的示例和网上相关的博客,客户端要么是原生Socket实现,要么是Socket调试工具,客户端不需要复杂一点的功能或数据结构吗?客户端不需要解包吗?SuperSocket不能用来写客户端吗?