QT事件与网络通信

闹钟 

头文件 

#ifndef MAINWINDOW_H
#define MAINWINDOW_H

#include <QMainWindow>
#include <QTimer>
#include <QTextToSpeech>  // 添加此行以引入QTextToSpeech类

QT_BEGIN_NAMESPACE
namespace Ui { class MainWindow; }
QT_END_NAMESPACE

class MainWindow : public QMainWindow
{
    Q_OBJECT

public:
    MainWindow(QWidget *parent = nullptr);
    ~MainWindow();
    void timerEvent(QTimerEvent *event) override;

    int eventTimerId;
    int clockTimerId;  

private slots:
    void on_btn1_clicked();
    void timeout_slot();
    void on_btn2_clicked();

private:
    Ui::MainWindow *ui;
    QTimer *objTimer;
    QTextToSpeech *tts;  // 声明QTextToSpeech对象
};

#endif // MAINWINDOW_H

源文件 

#include "mainwindow.h"
#include "ui_mainwindow.h"
#include <QTimer>
#include <QDebug>
#include <QMessageBox>
#include <QTime>
#include <QTimerEvent>
#include <QDateTime>
#include <QTextToSpeech>

MainWindow::MainWindow(QWidget *parent)
    : QMainWindow(parent)
    , ui(new Ui::MainWindow)
{
    ui->setupUi(this);
    objTimer = new QTimer(this);
    connect(objTimer, &QTimer::timeout, this, &MainWindow::timeout_slot);
    tts = new QTextToSpeech(this);  // 初始化QTextToSpeech
}

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

void MainWindow::timeout_slot()
{
    QTime systime = QTime::currentTime();
    QString t = systime.toString();
}

void MainWindow::on_btn2_clicked()
{
    if (ui->btn2->text() == "启动")
    {
        eventTimerId = this->startTimer(1000);
        ui->btn2->setText("关闭");
    }
    else
    {
        this->killTimer(eventTimerId);
        ui->btn2->setText("启动");
    }
}

void MainWindow::timerEvent(QTimerEvent *event)
{
    if (event->timerId() == eventTimerId)
    {
        QDateTime sysdatatime = QDateTime::currentDateTime();
        QString d = sysdatatime.toString("yyyy-MM-dd  hh:mm:ss");
        ui->label_2->setText(d);
    }

    if (event->timerId() == clockTimerId)
    {
        if (ui->lineEdit->text() == ui->label_2->text())
        {
            QString msg = "现在是北京时间 " + ui->label_2->text() + " 主人，可以起床了";
            tts->say(msg);  // 使用QTextToSpeech播放语音
            this->killTimer(clockTimerId);
            ui->btn1->setEnabled(true);
        }
    }
}

void MainWindow::on_btn1_clicked()
{
    clockTimerId = this->startTimer(1000);  // 每隔1000毫秒，系统会自动调用timerEvent函数
    ui->btn1->setEnabled(false);
}

 客户端

头文件 

#ifndef WEIGHT_H
#define WEIGHT_H
#include<QTcpSocket>
#include <QMainWindow>

QT_BEGIN_NAMESPACE
namespace Ui { class weight; }
QT_END_NAMESPACE

class weight : public QMainWindow
{
    Q_OBJECT

public:
    weight(QWidget *parent = nullptr);
    ~weight();

private slots:
    void on_connectbtn_clicked();
    void connected_slot();
    void readyRead_slot();
    void disconnected_slot();

    void on_sendbtn_clicked();

    void on_releasebtn_clicked();

private:
    Ui::weight *ui;
    QTcpSocket *client;
    QString userName;
};
#endif // WEIGHT_H

源文件 

#include "weight.h"
#include "ui_weight.h"
#include<QMessageBox>
weight::weight(QWidget *parent)
    : QMainWindow(parent)
    , ui(new Ui::weight)
{
    ui->setupUi(this);
    client =new QTcpSocket(this);
    connect(client,&QTcpSocket::connected,this,&weight::connected_slot);
    connect(client,&QTcpSocket::readyRead,this,&weight::readyRead_slot);
    connect(client,&QTcpSocket::disconnected,this,&weight::disconnected_slot);
}

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


void weight::on_connectbtn_clicked()
{
    userName=ui->nameedit->text();
    QString ip=ui->ipedit->text();
    quint16 port=ui->portedit->text().toUInt();
    client->connectToHost(ip,port);
}
void weight::connected_slot()
{
    QMessageBox::information(this,"提示","连接成功");
    QString msg=userName+"进入聊天室";
    client->write(msg.toLocal8Bit());

}

void weight::readyRead_slot()
{
   QByteArray msg=client->readAll();
   ui->listWidget->addItem(QString::fromLocal8Bit(msg));
}


void weight::on_sendbtn_clicked()
{
    QString msg=userName+": "+ui->lineEdit->text();
    client->write(msg.toLocal8Bit());
    ui->lineEdit->clear();
}

void weight::on_releasebtn_clicked()
{
    QString msg=userName+":离开聊天室";
    client->write(msg.toLocal8Bit());
    client->disconnectFromHost();
}
void weight::disconnected_slot()
{
    QMessageBox::information(this,"提示","断开成功");
}

原文地址：https://blog.csdn.net/yangh1231/article/details/142811578

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