Window API socket连接 client

本文socket client 与 server 同一端口通信

client端口的代码

#include <windows.h>/**** Function: SOCKET连接请求函数* para:* para:* Return:**/bool SocketConnect(QString serverip, int sendport){    PosLog.log->info("enter SocketConnect");    WSADATA wsaData;    SOCKADDR_IN server_addr;/* windows处理相关 */    WORD wVersion;    wVersion = MAKEWORD(2,2);    WSAStartup(wVersion,&wsaData);/* 配置TCP/IP协议 */    server_addr.sin_addr.s_addr = inet_addr(serverip.toUtf8().data());    server_addr.sin_family = AF_INET;    server_addr.sin_port = htons(sendport);/* 连接server */    if( (sock = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP)) == INVALID_SOCKET)    {        PosLog.log->info("Socket Connect INVALID");        return false;    }    if(connect(sock, (struct sockaddr *)&server_addr, sizeof(SOCKADDR_IN)) == SOCKET_ERROR)    {        PosLog.log->info("Socket Connect ERROR");        return false;    }    else    {        PosLog.log->info("Socket Connect Success");        return true;    }}/**** Function: SOCKET发送数据* para:* para:* Return:**/bool SendSocketData(QString inPutMsg , QString& outPutMsg){    int res = 0;    char msg[1024*20] = {'\0'};/* 发送数据 */    if(send(sock, inPutMsg.toUtf8().data(), inPutMsg.length(), 0) == SOCKET_ERROR)    {        return false;    }    else    {   /* 设置socket超时断开 */int recvTimeout = 10 * 1000;  //10s超时setsockopt(sock, SOL_SOCKET, SO_RCVTIMEO, (char *)&recvTimeout ,sizeof(int));        /* 接收服务器返回数据 */        if((res = recv(sock, msg, 1024*20, 0)) == -1)        {            PosLog.log->info("fail to receive data from server");        }        else        {            outPutMsg = QString::fromUtf8(msg);            //PosLog.log->info("outPutMsg:"+outPutMsg);            memset(msg, '\0', sizeof(msg));        }    }    return true;}