QT笔记之 获取本机ip地址

#include <QNetworkInterface>
void getLocalHostIP()
{

    QList<QHostAddress> AddressList = QNetworkInterface::allAddresses();

    foreach(QHostAddress address, AddressList)

    {

        if(address.protocol() == QAbstractSocket::IPv4Protocol &&

           address != QHostAddress::Null &&

           address != QHostAddress::LocalHost)

        {

             ui->cob_IP->addItem(address.toString());

         }

    }

}


#include <QtNetwork>
void getLocalHostIP()
{
         QString localHostName = QHostInfo::localHostName();

     QHostInfo info = QHostInfo::fromName(localHostName);

     foreach(QHostAddress address, info.addresses())

     {

          if(address.protocol() == QAbstractSocket::IPv4Protocol)

          {

              ui->cob_IP->addItem(address.toString());

          }

      }

}

注意：添加头文件后出现编译出错或者找不到头文件
解决办法：需要在工程pro文件中添加：QT       += core gui network