SOCKET 通讯问题.
各位好.
SOCKET 现可以收发,但只能收到一次.不知为什么?
SERVER端:
void CsocketDlg::mysocket()
{
//创建套接字
WORD myVersionRequest;
WSADATA wsaData;
myVersionRequest=MAKEWORD(1,1);
int err;
err=WSAStartup(myVersionRequest,&wsaData);
if (!err)
{
printf("已打开套接字\n");
}
else
{
//进一步绑定套接字
printf("嵌套字未打开!");
return ;
}
SOCKET serSocket=socket(AF_INET,SOCK_STREAM,0);//创建了可识别套接字
//需要绑定的参数
SOCKADDR_IN addr;
addr.sin_family=AF_INET; //AF_INET define net is tcp/udp
addr.sin_addr.S_un.S_addr=htonl(INADDR_ANY);//ip地址
addr.sin_port=htons(6000);//绑定端口
bind(serSocket,(SOCKADDR*)&addr,sizeof(SOCKADDR));//绑定完成
listen(serSocket,5);//其中第二个参数代表能够接收的最多的连接数
//////////////////////////////////////////////////////////////////////////
//开始进行监听
//////////////////////////////////////////////////////////////////////////
SOCKADDR_IN clientsocket;
int len=sizeof(SOCKADDR);
while (1)
{
SOCKET serConn=accept(serSocket,(SOCKADDR*)&clientsocket,&len);//如果这里不是accept而是conection的话。。就会不断的监听
char sendBuf[100];
sprintf(sendBuf+1,"welcome %s to bejing",inet_ntoa(clientsocket.sin_addr)); //,testcount);//找对对应的IP并且将这行字打印到那里
sendBuf[0]=testcount;
send(serConn,sendBuf,strlen(sendBuf)+1,0);
char receiveBuf[100];//接收
recv(serConn,receiveBuf,100,0); //strlen(receiveBuf)+1,0);
printf("%s\n",receiveBuf);
SetDlgItemText(IDC_SERVE,(CString)receiveBuf);
closesocket(serConn);//关闭
WSACleanup();//释放资源的操作
testcount++;
Sleep(200);
}
}
客户器端:
void CsocketDlg::client()
{
int err;
WORD versionRequired;
WSADATA wsaData;
versionRequired=MAKEWORD(1,1);
err=WSAStartup(versionRequired,&wsaData);//协议库的版本信息
if (!err)
{
printf("客户端嵌套字已经打开!\n");
}
else
{
printf("客户端的嵌套字打开失败!\n");
return;//结束
}
SOCKET clientSocket=socket(AF_INET,SOCK_STREAM,0);
SOCKADDR_IN clientsock_in;
clientsock_in.sin_addr.S_un.S_addr=inet_addr("127.0.0.1"); //192.168.1.33"); //
clientsock_in.sin_family=AF_INET;
clientsock_in.sin_port=htons(6000);
//bind(clientSocket,(SOCKADDR*)&clientsock_in,strlen(SOCKADDR));//注意第三个参数
listen(clientSocket,5);
connect(clientSocket,(SOCKADDR*)&clientsock_in,sizeof(SOCKADDR));//开始连接
char receiveBuf[100];
recv(clientSocket,receiveBuf,101,0);
printf("%s\n",receiveBuf);
SetDlgItemText(IDC_SERVE,(CString)receiveBuf);
send(clientSocket,"hello,this is client",strlen("hello,this is client")+1,0);
Sleep(10);
closesocket(clientSocket);
WSACleanup();
}
麻烦大家看看.
[解决办法]
1. SOCKET serConn=accept(serSocket,(SOCKADDR*)&clientsocket,&len);//
这个位置是不是应该是（SOCKADDR*）&serSocket
2. sendBuf[0]=testcount这个是做什么？
