Qt获取本机的IP地址

QT       += network

#include <QNetworkInterface>

QHostAddress MainWindow::getLocalHostIP()
{
QList<QHostAddress> AddressList = QNetworkInterface::allAddresses();
QHostAddress result;
foreach(QHostAddress address, AddressList){
if(address.protocol() == QAbstractSocket::IPv4Protocol &&
address != QHostAddress::Null &&
address != QHostAddress::LocalHost){
if (address.toString().contains("127.0.")){
continue;
}
result = address;
break;
}
}
return result;
}

void NetworkInformation::slotDetail()
{
QString detail="";
QList<QNetworkInterface> list=QNetworkInterface::allInterfaces();
for(int i=0;i<list.count();i++)
{
QNetworkInterface interface=list.at(i);
detail=detail+tr("设备：")+interface.name()+"\n";
detail=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=detail+"\t"+tr("IP 地址：")+entry.ip().toString()+"\n";
detail=detail+"\t"+tr("子网掩码：")+entry.netmask().toString()+"\n";
detail=detail+"\t"+tr("广播地址：")+entry.broadcast().toString()+"\n";
}
}
QMessageBox::information(this,tr("Detail"),detail);
}