Library_Project/widget.cpp

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

#include <QNetworkReply>
#include <QNetworkAccessManager>
#include <QNetworkRequest>

#include "spdlog/spdlog.h"


Widget::Widget(QWidget *parent)
    : QWidget(parent)
    , ui(new Ui::Widget)
{
    ui->setupUi(this);


    SPDLOG_INFO("***** Qt Https *****");

    QNetworkRequest request;
    request.setUrl(QUrl("http://www.baidu.com"));

    QNetworkAccessManager manager;
    auto reply = manager.get(request);
    if(reply->error() != QNetworkReply::NoError)
    {
        SPDLOG_ERROR("Error: {}", reply->errorString().toStdString());
    }
    else
    {
        SPDLOG_INFO("Http get Success");
    }


    auto client = new QMQTT::Client;
    client->setHostName("192.168.50.100");
    client->setPort(1883);
    connect(client,&QMQTT::Client::received,this,&Widget::do_receiveFromMqtt);
    connect(client,&QMQTT::Client::connected,this,[&](){
        SPDLOG_INFO("Connected to MQTT broker");
        client->subscribe("test/one",1);
    });
    client->connected();
}

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

void Widget::do_receiveFromMqtt(const QMQTT::Message& msg)
{
    SPDLOG_INFO("Received: {}", msg.payload().toStdString());
}