获取本机ip地址

有时候需要用到ip地址，但是有时候有虚拟机，需要剔除。

转自：https://blog.csdn.net/qq_38008379/article/details/103683946

获取本地IP地址( 排除虚拟机IP地址和链路IP地址 )：

 1   QString  Window::getHostAddress()  
 2 {
 3     QString hostAddr = "";
 4     QList<QNetworkInterface> nets = QNetworkInterface::allInterfaces();// 获取所有网络接口列表
 5     int nCnt = nets.count();
 6  
 7     //排除虚拟机地址
 8     for(int i = 0; i < nCnt; i ++) {
 9         if (  nets[i].hardwareAddress() == "00:50:56:C0:00:01" ) {
10             nets.removeAt( i );
11             break;
12         }
13     }
14     nCnt = nets.count();
15     for(int i = 0; i < nCnt; i ++) {
16         if (  nets[i].hardwareAddress() == "00:50:56:C0:00:08" ) {
17             nets.removeAt( i );
18             break;
19         }
20     }
21  
22     foreach(QNetworkInterface interface,nets) {
23         //排除不在活动的IP
24         if( interface.flags().testFlag(QNetworkInterface::IsUp) && interface.flags().testFlag(QNetworkInterface::IsRunning ) ){
25             QList<QNetworkAddressEntry> entryList = interface.addressEntries();
26             foreach(QNetworkAddressEntry entry,entryList) {
27                 QHostAddress hostAddress = entry.ip();
28  
29                 if ( hostAddr.isEmpty() ) {
30                     //排除本地地址
31                     if ( hostAddress != QHostAddress::LocalHost && hostAddress.toIPv4Address() ) {
32                         quint32 nIPV4 = hostAddress.toIPv4Address();
33  
34                         //本地链路地址
35                         quint32 nMinRange = QHostAddress("169.254.1.0").toIPv4Address();
36                         quint32 nMaxRange = QHostAddress("169.254.254.255").toIPv4Address();
37                         //排除链路地址
38                         if ( ( nIPV4 >= nMinRange ) && ( nIPV4 <= nMaxRange ) )
39                             continue;
40                         qDebug() << hostAddress;
41                         hostAddr = hostAddress.toString();
42                         return hostAddr;
43                     }
44                 }
45  
46             }
47         }
48     }
49     return QHostAddress::Null;
50 }

获取本地Mac地址( 排除虚拟机Mac地址 )

VM 虚拟机地址的Mac固定为 00:50:56:C0:00:01 和 00:50:56:C0:00:08：

QString Window::getHostMacAddress()
{
    qDebug() << "getHostMacAddress";
    QList<QNetworkInterface> nets = QNetworkInterface::allInterfaces();// 获取所有网络接口列表
    int nCnt = nets.count();
 
    QString strMacAddr = "";
    for(int i = 0; i < nCnt; i ++)
    {
        //00:50:56:C0:00:01 00:50:56:C0:00:08虚拟机地址
        // 如果此网络接口被激活并且正在运行并且不是回环地址，则就是我们需要找的Mac地址
        if(nets[i].flags().testFlag(QNetworkInterface::IsUp) && nets[i].flags().testFlag(QNetworkInterface::IsRunning)
                && !nets[i].flags().testFlag(QNetworkInterface::IsLoopBack) &&  nets[i].hardwareAddress() != "00:50:56:C0:00:01" && nets[i].hardwareAddress() != "00:50:56:C0:00:08" )
        {
            strMacAddr = nets[i].hardwareAddress();
            break;
        }
    }
    return strMacAddr;
}