QT upd测试
本次测试将服务器和客户端写在了一个工程下，代码如下
widget.h
#ifndef WIDGET_H
#define WIDGET_H
#include <QWidget>
#include<QUdpSocket>
#include<QTimer>
QT_BEGIN_NAMESPACE
namespace Ui {
class Widget;
}
QT_END_NAMESPACE
class Widget : public QWidget
{
Q_OBJECT
public:
Widget(QWidget *parent = nullptr);
~Widget();
private slots:
void on_pushButton_clicked();
void dataReceived();
void on_pushButton_2_clicked();
void timeoutslot();
private:
Ui::Widget *ui;
public:
int m_iport;
bool m_bisstarted;
QUdpSocket *udpSocket_server;
QUdpSocket *udpSocket_client;
QTimer *timer;
};
#endif // WIDGET_H
widget.cpp
#include "widget.h"
#include "ui_widget.h"
Widget::Widget(QWidget *parent)
: QWidget(parent)
, ui(new Ui::Widget)
{
ui->setupUi(this);
m_iport = 5555;
udpSocket_server = new QUdpSocket(this);
udpSocket_client = new QUdpSocket(this);
udpSocket_client->bind(m_iport);
timer = new QTimer(this);
connect(timer , SIGNAL(timeout()) , this , SLOT(timeoutslot()));
connect(udpSocket_client , SIGNAL(readyRead()) , this , SLOT(dataReceived()));
this->setWindowTitle("updtest");
}
Widget::~Widget()
{
delete ui;
}
void Widget::on_pushButton_clicked()
{
timer->start(500);
}
void Widget::timeoutslot()
{
QString msg = ui->lineEdit_send->text();
if(msg.size()==0)
{
return;
}
//转成utf8 避免中文乱码
udpSocket_server->writeDatagram(msg.toUtf8 ().data(), msg.toUtf8().size() , QHostAddress::Broadcast , m_iport);
}
void Widget::on_pushButton_2_clicked()
{
close();
}
void Widget::dataReceived()
{
while(udpSocket_client->hasPendingDatagrams())
{
QByteArray datagram;
datagram.resize(udpSocket_client->pendingDatagramSize());
udpSocket_client->readDatagram(datagram.data() , datagram.size());
QString msg = datagram.data();
ui->textEdit->insertPlainText(msg);
}
}
运行结果如下：
