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1、编程经验谈如何处理socket连接后服务器端或Socket编程经验谈---如何处理socket连接后服务器端或客户端的断开(转)2010年12月29日星期三14：50现象：服务器端等待客户断连接，当socket连接建立后，如果客户端异常断开，服务器会抛出异常，从而导致程序运行中断目标：希望服务器一直等待连接，客户端中断后程序不退出，而客户端重新恢复后可以继续保持连接代码：publicclassReceive{publicstaticbytebuffer=newbyte[1024]；publicstaticManualResetEventsocketEvent=newManualResetE
2、vent(false)；publicstaticSocketsListener=newSocket(AddressFamily.InterNetwork,SocketType.Stream,ProtocolType.Tcp)；publicstaticSockethandler=null；publicstaticstringClientBroken="Anconnectionwasforciblyclosedbytheremotehost"；publicstaticvoidreceive(){try{Console.WriteLine("MainThreadID："+AppDomain.Ge
3、tCurrentThreadId())；bytebytes=newbyte[1024]；IPAddressipAddr=IPAddress.Parse("127.0.0.1")；intPort=10001；IPEndPointEPServer=newIPEndPoint(ipAddr,Port)；//BindingasocketsListener.Bind(EPServer)；//StartlisteningsListener.Listen(10)；while(true){if(handler==null){//firstmustmakeaconnectConsole.WriteLine(
4、"waitingforaconnection.")；//asychronousfunctionforacceptingconnectionssListener.BeginAccept(newAsyncCallback(AcceptCallback),sListener)；socketEvent.WaitOne()；handler.BeginReceive(buffer,0,buffer.Length,0,newAsyncCallback(ReceiveCallback),handler)；socketEvent.WaitOne()；}else{Console.WriteLine("wait
5、ingnextmessage.")；socketEvent.Reset()；handler.BeginReceive(buffer,0,buffer.Length,0,newAsyncCallback(ReceiveCallback),handler)；socketEvent.WaitOne()；}}Console.ReadLine()；}catch(Exceptione){Console.WriteLine(e.ToString())；}Console.ReadLine()；}publicstaticvoidAcceptCallback(IAsyncResultar){try{Conso
6、le.WriteLine("AcceptCallbackThreadID："+AppDomain.GetCurrentThreadId())；Socketlistener=(Socket)ar.AsyncState；//newsockethandler=listener.EndAccept(ar)；handler.BeginReceive(buffer,0,buffer.Length,0,newAsyncCallback(ReceiveCallback),handler)；}catch(Exceptione){Console.WriteLine(e.ToString())；}}public
7、staticvoidReceiveCallback(IAsyncResultar){stringerr_message=null；try{Console.WriteLine("ReceiveCallbackThreadID："+AppDomain.GetCurrentThreadId())；stringcontent=String.Empty；handler=(Socket)ar.AsyncState；intbytesR
