QT 调用windows socket

pro添加
LIBS += -lws2_32

#ifndef WINSOCKET_H
#define WINSOCKET_H

#include 
#include 

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 
#include 
WinSocket::WinSocket()
{
    initSuccess=false;
}

WinSocket::~WinSocket()
{
   if(initSuccess)
   {
       ::closesocket(msocket);
       ::WSACleanup();
       requestInterruption();//要求中断
       wait();//等待线程释放
   }
}

void WinSocket::init(QString localIp,int localPort)
{
    int retValue;
    //初始化网络环境
    WSADATA wsaData;
    WORD sockVersion = MAKEWORD(2, 2);
    retValue=::WSAStartup(sockVersion, &wsaData);
    if(retValue!=0)
    {
        QMessageBox::information(NULL,"错误提示","Socket环境初始化失败");
        return;
    }
    //创建socket
    msocket = ::socket(AF_INET, SOCK_DGRAM, 0);
    if (msocket == INVALID_SOCKET)
    {
        QMessageBox::information(NULL,"错误提示","创建socket出错");
        ::WSACleanup();
        return;
    }

    localAddr.sin_family = AF_INET;
    localAddr.sin_addr.s_addr = inet_addr(localIp.toLatin1());
    localAddr.sin_port = ::htons(localPort);
    //绑定函数
    retValue= ::bind(msocket, (struct sockaddr*)&localAddr, sizeof(sockaddr_in));
    if(retValue==-1)
    {
        QMessageBox::information(NULL,"错误提示","绑定IP和端口出错");
        ::closesocket(msocket);
        ::WSACleanup();
        return;
    }
    //信号槽连接函数
    connect(this,SIGNAL(sendRecvData(char *,int,QString)),this,SLOT(dealRecvData(char *,int,QString)));
    //设置阻塞函数
    int imode =0;
    ioctlsocket(msocket,FIONBIO,(u_long FAR*)&imode);
    if(retValue==SOCKET_ERROR)
    {
        QMessageBox::information(NULL,"错误提示","阻塞函数设置失败");
        ::closesocket(msocket);
        ::WSACleanup();
        return;
    }
    //线程调用
    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()<