Qt——实现一个获取本机网络信息的界面

效果展现

代码实现

networkinformation.h：

#ifndef NETWORKINFORMATION_H
#define NETWORKINFORMATION_H#include <QMainWindow>
#include <QLabel>
#include <QLineEdit>
#include <QPushButton>class NetworkInformation : public QMainWindow
{Q_OBJECTpublic:NetworkInformation(QWidget *parent = nullptr);~NetworkInformation();void getHostInfo();public slots:void slotDetail();private:QLabel * hostNameLabel;QLineEdit * hostNameLineEdit;QLabel * ipLabel;QLineEdit * ipLineEdit;QPushButton * detailBtn;};
#endif // NETWORKINFORMATION_H

networkinformation.cpp：

#include "networkinformation.h"
#include <QGridLayout>
#include <QHostInfo>
#include <QNetworkInterface>
#include <QMessageBox>
#include <QDebug>NetworkInformation::NetworkInformation(QWidget *parent): QMainWindow(parent){QWidget * widget = new QWidget();this->setCentralWidget(widget);hostNameLabel = new QLabel(tr("主机名:"));hostNameLineEdit = new QLineEdit;ipLabel = new QLabel(tr("IP地址:"));ipLineEdit = new QLineEdit;detailBtn = new QPushButton(tr("详细"));QGridLayout * mainLayout = new QGridLayout;mainLayout->addWidget(hostNameLabel,0,0);mainLayout->addWidget(hostNameLineEdit,0,1);mainLayout->addWidget(ipLabel,1,0);mainLayout->addWidget(ipLineEdit,1,1);mainLayout->addWidget(detailBtn,2,0,1,2);widget->setLayout(mainLayout);//获取主机信息getHostInfo();//点击详细按钮 显示详细的 网络信息connect(detailBtn,SIGNAL(clicked()),this,SLOT(slotDetail()));}void NetworkInformation::getHostInfo(){//主机名QString hostName = QHostInfo::localHostName();hostNameLineEdit->setText(hostName);//ip地址QHostInfo hostInfo = QHostInfo::fromName(hostName);QList<QHostAddress> list = hostInfo.addresses();qDebug()<<"size = "<<list.count()<<endl;for(int i = 0;i < list.count();i++){qDebug()<<list.at(i).toString()<<endl;}if(list.count() >= 3){ipLineEdit->setText(list.at(3).toString());}}void NetworkInformation::slotDetail(){QString detail = "";QList<QNetworkInterface> list = QNetworkInterface::allInterfaces();for(int i = 0;i < list.count();i++){QNetworkInterface interface = list.at(i);detail += tr("设备:") + interface.name() + "\\n";detail += tr("硬件地址:") + interface.hardwareAddress() + "\\n";QList<QNetworkAddressEntry> entryList = interface.addressEntries();for(int j = 0;j < entryList.count();j++){QNetworkAddressEntry entry = entryList.at(j);detail += "\\t" + tr("IP地址:") + entry.ip().toString() + "\\n";detail += "\\t" + tr("子网掩码:") + entry.netmask().toString() + "\\n";detail += "\\t" + tr("广播地址:") + entry.broadcast().toString() + "\\n";}}qDebug()<<detail<<endl;QMessageBox::information(this,tr("Detail"),detail);}NetworkInformation::~NetworkInformation()
{
}

main.cpp：

#include "networkinformation.h"#include <QApplication>int main(int argc, char *argv[])
{QApplication a(argc, argv);NetworkInformation w;w.show();return a.exec();
}