Qt的tcpserver demo

 

mainwindow.cpp

#include "mainwindow.h"#include "ui_mainwindow.h"MainWindow::MainWindow(QWidget *parent) : QMainWindow(parent), ui(new Ui::MainWindow){ ui->setupUi(this); this->ininServer();}MainWindow::~MainWindow(){ delete ui;}void MainWindow::ininServer(){ this->listenSocket =new QTcpServer; this->listenSocket->listen(QHostAddress::Any,8888); QObject::connect(this->listenSocket,SIGNAL(newConnection()),this,SLOT(processConnection()));}void MainWindow::processConnection(){ this->readWriteSocket =this->listenSocket->nextPendingConnection(); QObject::connect(this->readWriteSocket,SIGNAL(readyRead()),this,SLOT(processText()));}void MainWindow::processText(){ this->globalString+=this->readWriteSocket->readAll(); ui->textEdit->setText(this->globalString);}

 

 

 

mainwindow.h

#ifndef MAINWINDOW_H#define MAINWINDOW_H#include <QMainWindow>#include <QtNetwork/QTcpServer>#include <QtNetwork/QHostAddress>#include <QtNetwork/QTcpSocket>namespace Ui { class MainWindow;}class MainWindow : public QMainWindow{ Q_OBJECTpublic: explicit MainWindow(QWidget *parent = 0); ~MainWindow(); void ininServer();private: Ui::MainWindow *ui; QString globalString; QTcpServer *listenSocket; // 侦听套接字 QTcpSocket *readWriteSocket;//读写套接字private slots: void processConnection(); void processText();};#endif // MAINWINDOW_H

 

 

 

main.cpp

#include <QtGui/QApplication>#include "mainwindow.h"int main(int argc, char *argv[]){ QApplication a(argc, argv); MainWindow w; w.show(); return a.exec();}