基于socket的简单聊天程序（二）

本文截选了主要的代码片段，供学习参考之用，如有错误，恳请提出或指正，在此表示感谢！

 

                                  截选代码及实现过程（ MFC 版）

Server 端：

// 初始化 ws2.dll 动态库；

     if (!AfxSocketInit (&wsadt ))

         MessageBox (lpInitError ,NULL ,MB_OK | MB_ICONSTOP );

 

// 创建 socket ；

     g_ServerSocket = new CSocket ;

     ServerSocket = socket (AF_INET ,SOCK_STREAM ,IPPROTO_TCP );

     if ( ServerSocket ==  INVALID_SOCKET )

     {

         iError = WSAGetLastError ();

     }

     g_ServerSocket ->Attach (ServerSocket );

// 绑定 secket ；

serverService .sin_family = AF_INET ;

     serverService .sin_port    = htons (3088); //this value must be same as client;

     serverService .sin_addr .s_addr = inet_addr("127.0.0.1"); // for testing;      memset (serverService .sin_zero ,0,8);

     g_ServerSocket ->Bind ((SOCKADDR *) &serverService , sizeof (SOCKADDR ));

// 发送数据；

     returnValue = g_AcceptSocket ->Send (wBuffer ,lenth *sizeof (WCHAR ),0);

     PostMessage (WM_MYMSG_CHAT ,NULL ,NULL );//continue to receive data ;

// 接收数据 ;

strLength = g_AcceptSocket ->Receive ((char *)wBuffer ,BUFLEN ,0);

 

Client 端

// 初始化 ws2.dll

     if (!AfxSocketInit (&wsadt ))

         MessageBox (lpInitError ,NULL ,MB_OK | MB_ICONSTOP );

// 创建 socket;

     g_ClientSocket = new CSocket ;

     ClientSocket = socket (AF_INET ,SOCK_STREAM ,IPPROTO_TCP );

     if ( ClientSocket ==  INVALID_SOCKET )

     {

         iError = WSAGetLastError ();

     }

     flg = g_ClientSocket ->Attach (ClientSocket );

// 连接服务端；

         serverService .sin_family = AF_INET ;

         serverService .sin_port  = htons (30 6 8); //this value must be same with server;

         memset (serverService .sin_zero ,0,8);

         hstent = gethostbyname (servernm );//resolve the name of host;

         serverService .sin_addr = *((struct in_addr *)hstent ->h_addr );

         strcpy_s (cSvNm ,hstent ->h_name );

         if (!g_ClientSocket ->Connect ((SOCKADDR *) &serverService , sizeof (SOCKADDR )))

         {

              iError = WSAGetLastError ();

         }

// 发送数据；

g_ClientSocket ->Send (wBuf ,lenth *sizeof (WCHAR ),0);

// 接收数据；

g_ClientSocket -> Receive (lpBuf , nBufLen 0);

 

 

目前实现情况

已经实现一对一聊天，一问一答的过程，当然这是最简单的；接下来，考虑添加线程操作，使得两端的收发可以同时进行；其次，考虑多clients聊天的实现。