windows_tcp简单代码

文章内容：
一个简单的显示windows平台下c++tcp的代码

1. 客户端代码已上传
2. 服务器代码未验证
3. 方便自己日后使用

客户端：
#if_MSC_VER >=1600//VS2010版本号是1600#pragmaexecution_character_set("utf-8")#endif#include"mynetdump.h"usingnamespace std;MyNetDump::MyNetDump(QObject *parent):QThread(parent){}MyNetDump::~MyNetDump(){closesocket(clientSocket);WSACleanup();this->wait();}voidMyNetDump::InitWincap(QString IP,int port,int ui_count){
    m_count = ui_count;
    WSADATA wsaData;if(WSAStartup(MAKEWORD(2,2),&wsaData)!=0){qDebug()<<"Failed to initialize winsock";return;}

    clientSocket =socket(AF_INET, SOCK_STREAM,0);if(clientSocket == INVALID_SOCKET){qDebug()<<"Failed to create socket";return;}

    serverAddress.sin_family = AF_INET;
    serverAddress.sin_port =htons(port);
    serverAddress.sin_addr.s_addr =inet_addr(IP.toStdString().c_str());// // 设置连接超时时间// int timeout = 5000; // 5秒// setsockopt(clientSocket, SOL_SOCKET, SO_RCVTIMEO, (char *)&timeout, sizeof(timeout));// setsockopt(clientSocket, SOL_SOCKET, SO_SNDTIMEO, (char *)&timeout, sizeof(timeout));if(::connect(clientSocket,(structsockaddr*)&serverAddress,sizeof(serverAddress))== SOCKET_ERROR){qDebug()<<"Failed to connect to server";return;}this->start();}voidMyNetDump::run(){while(isRunning()){char buffer[4096];memset(buffer,0,sizeof(buffer));int len =recv(clientSocket, buffer,sizeof(buffer),0);if(len == SOCKET_ERROR){qDebug()<<"Failed to receive data from server";return;}

        QString str =QString(QLatin1String(buffer));
        emit sigRecvMsg(str, m_count);msleep(5);}}

服务器代码
#include<iostream>#include<winsock2.h>#pragmacomment(lib,"ws2_32.lib")intmain(){
    WSADATA wsaData;if(WSAStartup(MAKEWORD(2,2),&wsaData)!=0){
        std::cout <<"Failed to initialize winsock"<< std::endl;return-1;}

    SOCKET serverSocket =socket(AF_INET, SOCK_STREAM,0);if(serverSocket == INVALID_SOCKET){
        std::cout <<"Failed to create socket"<< std::endl;return-1;}

    sockaddr_in serverAddress;
    serverAddress.sin_family = AF_INET;
    serverAddress.sin_port =htons(8080);
    serverAddress.sin_addr.s_addr = INADDR_ANY;if(bind(serverSocket,(structsockaddr*)&serverAddress,sizeof(serverAddress))== SOCKET_ERROR){
        std::cout <<"Failed to bind socket"<< std::endl;return-1;}if(listen(serverSocket, SOMAXCONN)== SOCKET_ERROR){
        std::cout <<"Failed to listen on socket"<< std::endl;return-1;}

    std::cout <<"Waiting for incoming connections..."<< std::endl;

    SOCKET clientSocket;
    sockaddr_in clientAddress;int clientAddressSize =sizeof(clientAddress);while((clientSocket =accept(serverSocket,(structsockaddr*)&clientAddress,&clientAddressSize))!= INVALID_SOCKET){
        std::cout <<"Client connected"<< std::endl;char buffer[4096];memset(buffer,0,sizeof(buffer));if(recv(clientSocket, buffer,sizeof(buffer),0)== SOCKET_ERROR){
            std::cout <<"Failed to receive data from client"<< std::endl;break;}

        std::cout <<"Received data from client: "<< buffer << std::endl;constchar* response ="Hello from server!";if(send(clientSocket, response,strlen(response),0)== SOCKET_ERROR){
            std::cout <<"Failed to send data to client"<< std::endl;break;}closesocket(clientSocket);
        std::cout <<"Client disconnected"<< std::endl;}closesocket(serverSocket);WSACleanup();return0;}