【C++】Qt：获取系统和网络信息示例

QT       += core gui network

// startupitems.h
#ifndef STARTUPITEMS_H
#define STARTUPITEMS_H

#include <QObject>
#include <QSettings>

class StartupItems : public QObject
{
    Q_OBJECT
public:
    explicit StartupItems(QObject *parent = nullptr);

    // 获取系统启动项
    QStringList getStartupItems()
    {
        QSettings registry("HKEY_CURRENT_USER\\Software\\Microsoft\\Windows\\CurrentVersion\\Run", QSettings::NativeFormat);
        return registry.childKeys();
    }

    // 添加启动项
    void addStartupItem(const QString& itemName, const QString& itemPath)
    {
        QSettings registry("HKEY_CURRENT_USER\\Software\\Microsoft\\Windows\\CurrentVersion\\Run", QSettings::NativeFormat);
        registry.setValue(itemName, itemPath);
    }

    // 删除启动项
    void removeStartupItem(const QString& itemName)
    {
        QSettings registry("HKEY_CURRENT_USER\\Software\\Microsoft\\Windows\\CurrentVersion\\Run", QSettings::NativeFormat);
        registry.remove(itemName);
    }

signals:

public slots:
};

#endif // STARTUPITEMS_H

// startupitems.cpp
#include "startupitems.h"

StartupItems::StartupItems(QObject *parent) : QObject(parent)
{
	// 可扩展实现
}

// mainwindow.h
#ifndef MAINWINDOW_H
#define MAINWINDOW_H

#include <QMainWindow>
#include <QProcess>
#include <QTextCodec>
#include <QRegularExpression>
#include <QSysInfo>
#include <QDebug>
#include <QHostInfo>
#include <QNetworkInterface>
#include <QSettings>
#include <QDateTime>
#include <QLocale>
#include "startupitems.h"

namespace Ui {
class MainWindow;
}

class MainWindow : public QMainWindow
{
    Q_OBJECT

public:
    explicit MainWindow(QWidget *parent = nullptr);
    ~MainWindow();

    void getSystemInfo();

    void getNetworkInfo();

    void setStartupItems();

    void getDateTimeInfo();

private slots:


private:
    Ui::MainWindow *ui;

    StartupItems *startup;
};

#endif // MAINWINDOW_H

// mainwindow.cpp
#include "mainwindow.h"
#include "ui_mainwindow.h"

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

    getSystemInfo();

    getNetworkInfo();

    startup = new StartupItems();

    setStartupItems();

    getDateTimeInfo();

}

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

void MainWindow::getSystemInfo()
{
    QString systemInfo = "";

    // 获取操作系统版本信息
    QString osVersion = QSysInfo::prettyProductName();
    systemInfo.append("操作系统版本：" + osVersion + "\n");

    // 获取计算机主机名
    QString hostName = QSysInfo::machineHostName();
    systemInfo.append("计算机主机名：" + hostName + "\n");

    // 获取处理器架构
    QString cpuArchitecture = QSysInfo::currentCpuArchitecture();
    systemInfo.append("处理器架构：" + cpuArchitecture + "\n");

    // 获取主机信息
    QString nativeEndian;
    if (QSysInfo::ByteOrder == QSysInfo::BigEndian) {
        nativeEndian = "Big Endian";
    } else {
        nativeEndian = "Little Endian";
    }
    systemInfo.append("本机字节顺序：" + nativeEndian);

    ui->tb_sys->setPlainText(systemInfo);
}

void MainWindow::getNetworkInfo()
{
    QString networkInfo = "";

    // 获取主机的 IP 地址列表
    QString hostName = QHostInfo::localHostName();
    QList<QHostAddress> ipAddresses = QHostInfo::fromName(hostName).addresses();
    networkInfo.append("当前网络信息： \n");
    foreach (const QHostAddress &address, ipAddresses) {
        if (address.protocol() == QAbstractSocket::IPv4Protocol) {
            networkInfo.append("IPv4: " + address.toString() + "\n");
        } else if (address.protocol() == QAbstractSocket::IPv6Protocol) {
            networkInfo.append("IPv6: " + address.toString() + "\n");
        }
    }

//    // 获取网络接口列表
//    QList<QNetworkInterface> interfaces = QNetworkInterface::allInterfaces();
//    qDebug() << "网络接口列表：";
//    foreach (const QNetworkInterface &interface, interfaces) {
//        qDebug() << "名称：" << interface.name();
//        qDebug() << "硬件地址：" << interface.hardwareAddress();
//        qDebug() << "IP 地址列表：";
//        foreach (const QNetworkAddressEntry &entry, interface.addressEntries()) {
//            qDebug() << entry.ip().toString();
//        }
//        qDebug() << "-----------------------";
//    }

    ui->tb_net->setPlainText(networkInfo);
}

void MainWindow::setStartupItems()
{
    QString startupInfo = "";

    // 获取当前的启动项
    QStringList startupItems = startup->getStartupItems();
    startupInfo.append("当前的启动项：\n");
    for(const QString& item : startupItems)
    {
        startupInfo.append(item + "\n");
    }

    // 添加示例启动项
//    QString itemName = "Poe";
//    QString itemPath = "C:\\Path\\To\\MyApp.exe";
//    startup->addStartupItem(itemName, itemPath);
//    qDebug() << "添加启动项：" << itemName;

//    // 再次获取启动项，验证是否添加成功
//    startupItems = startup->getStartupItems();
//    qDebug() << "当前的启动项：";
//    for(const QString& item : startupItems)
//    {
//        qDebug() << item;
//    }

//    // 删除示例启动项
//    startup->removeStartupItem(itemName);
//    qDebug() << "删除启动项：" << itemName;

//    // 再次获取启动项，验证是否删除成功
//    startupItems = startup->getStartupItems();
//    qDebug() << "当前的启动项：";
//    for(const QString& item : startupItems)
//    {
//        qDebug() << item;
//    }

    ui->tb_start->setPlainText(startupInfo);
}

void MainWindow::getDateTimeInfo()
{
    QString datetimeInfo = "";

    // 获取当前日期和时间
    QDateTime currentDateTime = QDateTime::currentDateTime();
    QString currentDateTimeString = currentDateTime.toString(Qt::DefaultLocaleLongDate);
    datetimeInfo.append("当前日期和时间：" + currentDateTimeString + "\n");

    // 获取星期信息
    QString dayOfWeekString = currentDateTime.toString("dddd");
    datetimeInfo.append("星期：" + dayOfWeekString);

    ui->tb_time->setPlainText(datetimeInfo);
}