พอดีมีงานที่ต้องใช้งาน TCP/IP ก็เลยต้องมาเรียนรู้กันสักหน่อย
================================
========= test_network_server.pro =======
================================QT -= gui
QT += network
CONFIG += c++11 console
CONFIG -= app_bundle
# The following define makes your compiler emit warnings if you use
# any feature of Qt which as been marked deprecated (the exact warnings
# depend on your compiler). Please consult the documentation of the
# deprecated API in order to know how to port your code away from it.
DEFINES += QT_DEPRECATED_WARNINGS
# You can also make your code fail to compile if you use deprecated APIs.
# In order to do so, uncomment the following line.
# You can also select to disable deprecated APIs only up to a certain version of Qt.
#DEFINES += QT_DISABLE_DEPRECATED_BEFORE=0x060000 # disables all the APIs deprecated before Qt 6.0.0
SOURCES += main.cpp \
myserver.cpp
HEADERS += \
myserver.h
target.path = /home/pi/Pump
INSTALLS += target
================================
=========== main.cpp ==============
================================
#include <QCoreApplication>
#include <myserver.h>
int main(int argc, char *argv[])
{
QCoreApplication a(argc, argv);
myServer mServer;
return a.exec();
}
================================
=========== myserver.h ============
================================#ifndef MYSERVER_H
#define MYSERVER_H
#include <QObject>
#include <QDebug>
#include <QTcpServer>
#include <QTcpSocket>
class myServer : public QObject
{
Q_OBJECT
public:
explicit myServer(QObject *parent = nullptr);
signals:
public slots:
void newConnection();
private:
QTcpServer *server;
};
#endif // MYSERVER_H
================================
=========== myserver.cpp ===========
================================
#include "myserver.h"
myServer::myServer(QObject *parent) : QObject(parent)
{
server = new QTcpServer(this);
connect(server,SIGNAL(newConnection()),this,SLOT(newConnection()));
if(!server->listen(QHostAddress::Any,1234)){
qDebug()<<"Server could not start";
}
else{
qDebug()<<"Server started";
}
}
void myServer::newConnection(){
QTcpSocket *socket = server->nextPendingConnection();
socket->write("hello client\r\n");
socket->flush();
socket->waitForBytesWritten(3000);
socket->close();
}
ที่มา
https://www.youtube.com/watch?v=BSdKkZNEKlQ
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