pro添加 LIBS += -lws2_32#ifndef WINSOCKET_H #define WINSOCKET_H#include <WinSock2.h> #include <QThread>class WinSocket : public QThread {Q_OBJECT public:explicit WinSocket();~WinSocket();void init(QString localIp,int localPort);void sendData(char data[],int length,QString remoteIp,int remotePort); private:SOCKET msocket;sockaddr_in localAddr;sockaddr_in recvAddr;sockaddr_in remoteAddr;bool initSuccess;char vrecvData[500];char vsendData[500];void run(); signals:void sendRecvData(char *data,int length,QString recvIp); public slots:void dealRecvData(char *data,int length,QString recvIp); };#endif // WINSOCKET_H#include "winsocket.h" #include <QMessageBox> #include <QDebug> WinSocket::WinSocket() {initSuccess=false; }WinSocket::~WinSocket() {if(initSuccess){::closesocket(msocket);::WSACleanup();requestInterruption();//要求中斷wait();//等待線程釋放} }void WinSocket::init(QString localIp,int localPort) {int retValue;//初始化網絡環境WSADATA wsaData;WORD sockVersion = MAKEWORD(2, 2);retValue=::WSAStartup(sockVersion, &wsaData);if(retValue!=0){QMessageBox::information(NULL,"錯誤提示","Socket環境初始化失敗");return;}//創建socketmsocket = ::socket(AF_INET, SOCK_DGRAM, 0);if (msocket == INVALID_SOCKET){QMessageBox::information(NULL,"錯誤提示","創建socket出錯");::WSACleanup();return;}localAddr.sin_family = AF_INET;localAddr.sin_addr.s_addr = inet_addr(localIp.toLatin1());localAddr.sin_port = ::htons(localPort);//綁定函數retValue= ::bind(msocket, (struct sockaddr*)&localAddr, sizeof(sockaddr_in));if(retValue==-1){QMessageBox::information(NULL,"錯誤提示","綁定IP和端口出錯");::closesocket(msocket);::WSACleanup();return;}//信號槽連接函數connect(this,SIGNAL(sendRecvData(char *,int,QString)),this,SLOT(dealRecvData(char *,int,QString)));//設置阻塞函數int imode =0;ioctlsocket(msocket,FIONBIO,(u_long FAR*)&imode);if(retValue==SOCKET_ERROR){QMessageBox::information(NULL,"錯誤提示","阻塞函數設置失敗");::closesocket(msocket);::WSACleanup();return;}//線程調用start();initSuccess=true; }void WinSocket::run() {int length=0;int sockAddrSize=sizeof(sockaddr_in);while(false==this->isInterruptionRequested()){memset(vrecvData,0,500);length=0;length=::recvfrom(msocket, (char*)vrecvData,sizeof(vrecvData), 0, (struct sockaddr*)&recvAddr, &sockAddrSize);if(length!=-1){memcpy(vsendData,vrecvData,length);emit sendRecvData(vsendData,length,::inet_ntoa(recvAddr.sin_addr));}} }void WinSocket::dealRecvData(char data[],int length,QString recvIp) {qDebug()<<data<<" "<<length<<" "<<recvIp; }void WinSocket::sendData(char data[],int length,QString remoteIp,int remotePort) {if(initSuccess){remoteAddr.sin_family = AF_INET;remoteAddr.sin_addr.s_addr = ::inet_addr(remoteIp.toLatin1());remoteAddr.sin_port = ::htons(remotePort);::sendto(msocket, data,length,0, (sockaddr*)&remoteAddr,sizeof(sockaddr_in));} }

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