Qt学习之路：获取本机网络信息

用Qt5实现的简单程序，获取本机网络信息。

建立工程后，在.pro里加入：

QT       += network

用Qt设计器创建界面：

在widget.h中声明getHostInformation类：

public:

    int getHostInformation();

声明槽函数：

public slots :

    void slotDetail();

并包含头文件：

#include <QHostInfo>

#include <QNetworkInterface>

在widget.cpp中实现：

int Widget::getHostInformation()

{

    QString localHostName = QHostInfo::localHostName();

    ui->lineEditLocalHostName->setText(localHostName);

QHostInfo hostinfo = QHostInfo::fromName(localHostName);

    QList<QHostAddress> listAddress = hostinfo.addresses();

    if(!listAddress.isEmpty())

    {

        ui->lineEditAddress->setText(listAddress.first().toString());

    }

    return 0;

}
void Widget::slotDetail()

{

    QString detail = "";

    QList<QNetworkInterface> list = QNetworkInterface::allInterfaces();

    for(int i=0;i<list.count();i++)

    {

        QNetworkInterface interface = list.at(i);

        detail = detail + tr("Device: ") + interface.name() + "\n";

        detail = detail + tr("Hardware address: ") + 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 address: ") + entry.ip().toString() + "\n";

            detail = detail + "\t" +tr ("Subnet mask: ") + entry.netmask().toString() + "\n";

            detail = detail + "\t" +tr ("Broadcast address: ") + entry.broadcast().toString() + "\n";

        }

    }

    QMessageBox::information(this,tr("Detail"),detail);

}

编译运行：

Moran at 2014.6.1