===客户端===

需要建一个公用的as class：（package NetStar   ->  class MySocket）

MySocket.as

package NetStar { import flash.net.Socket; public class MySocket { public static var CurSocket : Socket = new Socket(); public function MySocket() { } } }

myNewTest3.MXML

<?xml version="1.0" encoding="gb2312"?> <mx:Application xmlns:mx="http://www.adobe.com/2006/mxml" layout="absolute" initialize="connectToServer();"> <mx:Script> <!--[CDATA[ import NetStar.MySocket; import mx.controls.Alert; import flash.net.Socket; import flash.net.*; import flash.system.Security; private function connectToServer() : void { NetStar.MySocket.CurSocket.addEventListener(Event.CLOSE,close); NetStar.MySocket.CurSocket.addEventListener(ProgressEvent.SOCKET_DATA,receiveData); NetStar.MySocket.CurSocket.addEventListener(IOErrorEvent.IO_ERROR,ioErrorHandler); NetStar.MySocket.CurSocket.addEventListener(SecurityErrorEvent.SECURITY_ERROR,securityHandler); NetStar.MySocket.CurSocket.connect("192.168.1.169",8888); //本机测试不要用127.0.0.1，否则连不上，不知原因 } private function close(event: Event) : void { Alert.show("失去与服务器的连接！"); } private function receiveData(event:ProgressEvent) : void { try { var buffer : ByteArray = new ByteArray(); NetStar.MySocket.CurSocket.readBytes(buffer,NetStar.MySocket.CurSocket.bytesAvailable); var message : String = buffer.readUTF(); if(message != "") { MessageBoard.text += message + "/n"; } }catch(ex : Error){} } private function ioErrorHandler(event: IOErrorEvent) : void { Alert.show("IO_ERROR！"); } private function securityHandler(event: SecurityErrorEvent) : void { Alert.show("SECURITY_ERROR！"); Alert.show(event.toString()); } private function send() : void { if(NetStar.MySocket.CurSocket.connected == true) { if(Message.text == "") { Alert.show("请输入要发送的信息！"); return; } NetStar.MySocket.CurSocket.writeUTF(Message.text); NetStar.MySocket.CurSocket.flush(); Message.text = ""; } else { Alert.show("失去与服务器的连接！"); } } ]]--> </mx:Script> <mx:Button x="377.75" y="264" label="Send" click="send();"/> <mx:TextInput id="Message" x="18.25" y="264" width="351"/> <mx:TextArea id="MessageBoard" x="18.25" y="10" height="246" width="413.5"/> </mx:Application>

===服务端===

c# 应用台程序

using System; using System.Collections.Generic; using System.Text; using System.Net; using System.Net.Sockets; using System.Threading; namespace ConsoleApplication2 { class Program { private static System.Collections.ObjectModel.Collection<Socket> Sockets = new System.Collections.ObjectModel.Collection<Socket>(); static void Main(string[] args) { Socket listenSocket = new Socket(AddressFamily.InterNetwork,SocketType.Stream,ProtocolType.Tcp); IPAddress hostIP = Dns.GetHostEntry(Dns.GetHostName()).AddressList[0]; int port = 8888; //监听端口 IPEndPoint endPoint = new IPEndPoint(hostIP,port); //获得IP，如：192.168.1.169 listenSocket.Bind(endPoint); listenSocket.Listen(100); //连接上限 System.Console.WriteLine("即时消息服务[" + hostIP + "]已启动。"); while (true) { Socket acceptSocket = listenSocket.Accept(); Program.Sockets.Add(acceptSocket); string policy = "<?xml version=/"1.0/"?><cross-domain-policy><allow-access-from domain=/"*/" to-ports=/"" + port + "/"/></cross-domain-policy>/0"; acceptSocket.Send(System.Text.ASCIIEncoding.UTF8.GetBytes(policy)); Thread thread = new Thread(new ParameterizedThreadStart(Program.Receive)); thread.Start(acceptSocket); } } private static void Receive(object value) { Socket acceptSocket = (Socket)value; while (true) { byte[] buffer = new byte[1024]; try { acceptSocket.Receive(buffer); foreach (Socket item in Program.Sockets) { item.Send(buffer); } } catch { break; } } Program.Sockets.Remove(acceptSocket); } } }