Qt获取本机IP地址：
Qt版本：4.8.6
#include <QtNetwork/QNetworkInterface.h>
QString ipAddr;
QList<QHostAddress> list = QNetworkInterface::allAddresses();
foreach (QHostAddress address, list) {
if (address.protocol() == QAbstractSocket::IPv4Protocol) {
ipAddr = address.toString();
break;
}
}
参考：
http://blog.csdn.net/jdh99/article/details/6679692