QT下TCP協議通信的簡單Server端

 

/**********************
 *Write to 5 July 2012*
 *By Mr Rao           *
 **********************/
#ifndef _SERVER_H_
#define _SERVER_H_

#include <QDialog>
#include <QPushButton>
#include <QTextEdit>
#include <QGridLayout>
#include <QTcpSocket>
#include <QTcpServer>

class Dialog:public QDialog
{
    Q_OBJECT
public:
    Dialog();
    ~Dialog();
public slots:
    void recv_slot();
    void connect_slot();
private:
    QPushButton *exitButton;
    QTextEdit *textEdit;
    QGridLayout *layout;
    QTcpServer *tcpServer;
    QTcpSocket *tcpSocket;
};
#endif

 

#include "server.h"

Dialog::Dialog()
{
    exitButton = new QPushButton("exit");
    textEdit = new QTextEdit;
    layout = new QGridLayout;
    tcpServer = new QTcpServer;

    layout->addWidget(textEdit,0,0,4,6);
    layout->addWidget(exitButton,5,4,1,2);

    setLayout(layout);

        tcpServer->listen(QHostAddress::Any , 1573);

        connect(tcpServer,SIGNAL(newConnection()),this,SLOT(connect_slot()));
    connect(exitButton,SIGNAL(clicked()),this,SLOT(close()));
}
Dialog::~Dialog()
{
    delete exitButton;
    delete textEdit;
    delete layout;
    delete tcpServer;
}
void Dialog::connect_slot()
{
    tcpSocket = tcpServer->nextPendingConnection();
    connect(tcpSocket,SIGNAL(readyRead()),this,SLOT(recv_slot()));
}
void Dialog::recv_slot()
{
    QByteArray byte;
    byte = tcpSocket->readAll();
    textEdit->setPlainText(QString(byte));
}

 

#include <QApplication>
#include "server.h"

int main(int argc,char **argv)
{
    QApplication app(argc,argv);
    Dialog dlg;
    dlg.show();
    return app.exec();
}