【Qt点滴】：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() + "
";
        detail = detail + tr("Hardware address: ") + interface.hardwareAddress() + "
";
        QList<QNetworkAddressEntry> entryList = interface.addressEntries();
        for(int j=0;j<entryList.count();j++)
        {
            QNetworkAddressEntry entry = entryList.at(j);
            detail = detail + "	" + tr ("IP address: ") + entry.ip().toString() + "
";
            detail = detail + "	" +tr ("Subnet mask: ") + entry.netmask().toString() + "
";
            detail = detail + "	" +tr ("Broadcast address: ") + entry.broadcast().toString() + "
";
        }
    }
    QMessageBox::information(this,tr("Detail"),detail);
}

编译运行：

Moran @  2014.6.1