QT之tcp服务端(代码）

//myServer.h
#ifndef MYSERVER_H
#define MYSERVER_H

#include 
#include 
#include 

class MyServer : public QTcpServer
{
    Q_OBJECT
public:
    MyServer(QObject *parent = 0);
protected:
    void incomingConnection(qintptr socketDescriptor);
};

#endif // MYSERVER_H

//myServer.cpp
#include "myserver.h"
#include "mysocket.h"

myServer::myServer()
{

}

void myServer::incomingConnection(qintptr socketDescriptor)
{
    mySocket *myTcpSocket=new mySocket(this);
    myTcpSocket->setSocketDescriptor(socketDescriptor);
}

//myTcpSocket.h
#ifndef MYSOCKET_H
#define MYSOCKET_H

#include 
#include 
#include 
#include 

class mySocket:public QTcpSocket
{
    Q_OBJECT
public:
    mySocket(QObject *parent=0);
private slots:
    void readClient();
};

#endif // MYSOCKET_H

//myTcpSocket.cpp
#include "mysocket.h"

mySocket::mySocket(QObject *parent):QTcpSocket(parent)
{
    connect(this,SIGNAL(readyRead()),this,SLOT(readClient()));
    connect(this,SIGNAL(disconnected()),this,SLOT(deleteLater()));
}

void mySocket::readClient()
{
    qDebug() << "hello" <

//main.cpp
#include 
#include 
#include "myserver.h"

int main(int argc, char *argv[])
{
    QApplication a(argc, argv);
    MyServer myServer;
    myServer.listen(QHostAddress::Any,7788);
    QPushButton pushButton("quit");
    pushButton.show();
    QObject::connect(&pushButton,SIGNAL(clicked()),&a,SLOT(quit()));

    return a.exec();
}

//widget.cpp

#include "widget.h"
#include "ui_widget.h"

Widget::Widget(QWidget *parent) :
    QWidget(parent),
    ui(new Ui::Widget)
{
    ui->setupUi(this);
    MyServer.listen(QHostAddress::Any,7788);
}

Widget::~Widget()
{
    delete ui;
}

//Widget.h
#ifndef WIDGET_H
#define WIDGET_H

#include 
#include 
#include 
#include "myserver.h"

namespace Ui {
class Widget;
}

class Widget : public QWidget
{
    Q_OBJECT

public:
    explicit Widget(QWidget *parent = 0);
    ~Widget();

private:
    Ui::Widget *ui;
    myServer MyServer;

};

#endif // WIDGET_H

可参考https://blog.csdn.net/qq_32046111/article/details/74214845 有详细说明