用C#编写可以广播的SOCKET服务器端
using System;using System.Collections.Generic;using System.Linq;using System.Text;using System.Threading;using System.Net.Sockets;using System.Net;using System.IO;using System.Web.Script.Serialization;namespace SocketServer{ public class SocketHost { private IDictionary<Socket, byte[]> socketClientSesson = new Dictionary<Socket, byte[]>(); private List<string> message = new List<string>(); private Boolean isClear = true; public int Port { get; set; } public void Start() { Boardcast(); var socketThread = new Thread(() => { Socket socket = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp); IPEndPoint iep = new IPEndPoint(IPAddress.Any, this.Port); //绑定到通道上 socket.Bind(iep); //侦听 socket.Listen(6); //通过异步来处理 socket.BeginAccept(new AsyncCallback(Accept), socket); }); socketThread.Start(); Console.WriteLine("Server Started"); } private void Accept(IAsyncResult ia) { Socket socket = ia.AsyncState as Socket; var client = socket.EndAccept(ia); socket.BeginAccept(new AsyncCallback(Accept), socket); byte[] buf = new byte[1024]; this.socketClientSesson.Add(client, buf); try { client.BeginReceive(buf, 0, buf.Length, SocketFlags.None, new AsyncCallback(Receive), client); string sessionId = client.RemoteEndPoint.ToString() + " - " + client.Handle.ToString(); Console.WriteLine("Client ({0}) Connected", sessionId); } catch (Exception ex) { Console.WriteLine("Error：\r\n" + ex.ToString()); } } private void Receive(IAsyncResult ia) { var client = ia.AsyncState as Socket; if (client == null || !this.socketClientSesson.ContainsKey(client)) { return; } int count = client.EndReceive(ia); byte[] buf = this.socketClientSesson[client]; if (count > 0) { try { client.BeginReceive(buf, 0, buf.Length, SocketFlags.None, new AsyncCallback(Receive), client); string context = Encoding.UTF8.GetString(buf, 0, count); PushMessage(context); } catch (Exception ex) { Console.WriteLine("Receive Error :\r\n{0}", ex.ToString()); } } else { try { string sessionId = client.RemoteEndPoint.ToString() + " - " + client.Handle.ToString(); client.Disconnect(true); this.socketClientSesson.Remove(client); Console.WriteLine("Client ({0}) Disconnet", sessionId); } catch (Exception ex) { Console.WriteLine("Error: \r\n" + ex.ToString()); } } } private void PushMessage(string context) { while (context.EndsWith("\n") || context.EndsWith("\0")) { context = context.Remove(context.Length - 1); } Console.WriteLine("Get : {0}", context); message.Add(context); isClear = false; } private void Boardcast() { var boardcaseThread = new Thread(() => { while (true) { if (!isClear) { byte[] tmp = Encoding.UTF8.GetBytes(message[0] + "\0\n"); foreach (KeyValuePair<Socket, byte[]> node in this.socketClientSesson) { Socket client = node.Key; client.Send(tmp, tmp.Length, SocketFlags.None); } message.RemoveAt(0); isClear = message.Count > 0 ? false : true; } } }); boardcaseThread.Start(); } }}