利用Socket实现C++与Flex通信

一、 C++ 服务器端

（用的是 Visual Studio 2008 （ 05 ， 03 的应该也可以， VC++ 的可能需要稍微改动））

代码如下：

#include <winsock2.h>

#include <stdio.h>

#include <windows.h>

#include <iostream>

using namespace std;

#pragma comment(lib,"ws2_32.lib")

 

void main(){ 

 WORD wVersionRequested;

 WSADATA wsaData;

 int err;

 short port=1300;// 端口号

 

 wVersionRequested = MAKEWORD( 1, 1 );

 

 err = WSAStartup( wVersionRequested, &wsaData );// 初始化套接字

 if ( err != 0 )

 {

    return;

 }

 

 if ( LOBYTE( wsaData.wVersion ) != 1 || HIBYTE( wsaData.wVersion ) != 1 )

 {

    WSACleanup( );

    return;

 }

 

 SOCKET sockSrv=socket(AF_INET,SOCK_STREAM,0);// 创建套接字

 SOCKET sockConn;// 用来和客户端通信的套接字

 

 SOCKADDR_IN addrSrv;// 用来和客户端通信的套接字地址

 

 addrSrv.sin_addr.S_un.S_addr=htonl(INADDR_ANY);

 addrSrv.sin_family=AF_INET;

 addrSrv.sin_port=htons(port);

 

 bind(sockSrv,(SOCKADDR*)&addrSrv,sizeof(SOCKADDR));// 绑定端口

 

 listen(sockSrv,5);// 侦听

 

printf("Server %d is listening......\n",port);

 

 SOCKADDR_IN addrClient;

 

 int len=sizeof(SOCKADDR);

 

char buf[4096];// 接收的数据

char rbuf[100]=" 成功" ;// 返回的数据

 

 while(1)

 {

        // 接受连接

         sockConn=accept(sockSrv,(SOCKADDR*)&addrClient,&len);

         printf("Accept connection from %s\n",inet_ntoa(addrClient.sin_addr));

 

         // 接收数据

         int bytes;

         if((bytes=recv(sockConn,buf,sizeof(buf),0))==SOCKET_ERROR){

              printf(" 接收数据失败!\n" );

              exit(-1);

         }

         buf[bytes]='\0';

         printf("Message from %s: %s\n",inet_ntoa(addrClient.sin_addr),buf);

 

         // 发送数据

        if(send(sockConn,rbuf,strlen(rbuf)+1,0)==SOCKET_ERROR){

              printf(" 发送数据失败！" );

              exit(-1);

         }

        printf("Message to %s: %s\n",inet_ntoa(addrClient.sin_addr),rbuf);

 

        // 清理套接字占用的资源

        closesocket(sockConn);

 }

 

 

}

 

运行效果如下：

二、 Flex 客户端（ Flex Builder ）

代码如下

<?xml version="1.0" encoding="utf-8"?>

<mx:WindowedApplication xmlns:mx=" http://www.adobe.com/2006/mxml " layout=" absolute "

     creationComplete="initApp();" >

        <mx:Script>

        <![CDATA[

            import flash.net.Socket;

            private var socket:Socket;

            private function initApp():void

            {

             

            }

           

            private function StartTest():void

            {         

              socket = new Socket("127.0.0.1",1300);     

                socket.addEventListener(Event.CONNECT, connectHandler);

                socket.addEventListener(ProgressEvent.SOCKET_DATA, socketDataHandler);

            }

            private function CloseTest():void

            {   

                if(socket!=null && socket.connected)

                {

                    trace("socket.connected:"+socket.connected);

                    socket.close();

                    trace("socket.connected:"+socket.connected);

                }

            }

            private function connectHandler(event:Event):void

            {

                trace("connectHandler: " + event);

                socket.writeMultiByte(SendStr.text, "GB2312");               

                socket.flush();

            }

            private function socketDataHandler(event:ProgressEvent):void

            {

                trace("socketDataHandler: " + event);

                var str:String=socket.readMultiByte(socket.bytesAvailable,"GB2312");

                ReceiveStr.text = str;

            }

        ]]>

    </mx:Script>

 

        <mx:Text text=" 发送 " y=" 11 " x=" 18 " fontWeight=" bold " color=" #ffffff " />

        <mx:TextArea id=" ReceiveStr " x=" 53 " y=" 68 " />

        <mx:Text text=" 接收 " y=" 69 " x=" 18 " fontWeight=" bold " color=" #ffffff " />

        <mx:TextArea id=" SendStr " y=" 10 " x=" 53 " />        

        <mx:Button label=" Start " click="StartTest()" x=" 53 " y=" 120 " />

        <mx:Button label=" Close " click="CloseTest()" x=" 126 " y=" 120 " />

</mx:WindowedApplication>

三、运行

先运行 C++ 服务器端，再运行 Flex 客户端，成功后如下图所示