Qt - 获取本机的IP地址和MAC地址

　　 Qt提供了类QNetworkInterface用于获取IP和MAC地址，需在pro文件中加入

　　QT += network

具体代码如下：

#include "widget.h"
#include "ui_widget.h"
#include <QNetworkInterface>
#include<QDebug>

Widget::Widget(QWidget *parent) :
    QWidget(parent),
    ui(new Ui::Widget)
{
    ui->setupUi(this);
    QString ipAddr;
    QList<QNetworkInterface> network = QNetworkInterface::allInterfaces();
    foreach (QNetworkInterface i, network) {
        QString netName = i.humanReadableName();

      qDebug()<<netName;
        if(netName == tr("无线网络连接"))
        {
              qDebug()<<i.hardwareAddress();
            QList<QNetworkAddressEntry> ipAll = i.addressEntries();

            foreach (QNetworkAddressEntry ip, ipAll) {
                if(ip.ip().protocol()==QAbstractSocket::IPv4Protocol)
                    ipAddr = ip.ip().toString();

            }
        }

    }
 qDebug()<<"ipAddr = "<<ipAddr;
}

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

结果为：

"无线网络连接"
"40:F0:2F:1B:05:F9"
"本地连接"
"VMware Network Adapter VMnet1"
"VMware Network Adapter VMnet8"
"Loopback Pseudo-Interface 1"
"isatap.localdomain"
"isatap.{D159E0D6-D661-474C-9552-5D3D9944EA83}"
"isatap.{EE78D248-2FB3-4BFC-8716-312559A7D9A1}"
"Teredo Tunneling Pseudo-Interface"
ipAddr =  "192.168.43.122"