在網絡應用中,經常需要擷取本機主機名和IP位址和硬體位址等資訊。運用QHostInfo、QNetworkInterface、QNetworkAddressEntry可以獲得本機的網絡資訊。
上運作截圖
這裡需要注意的,在Qt5.80 VS的版本中,有的字元“:”中文版本的,會導緻編譯錯誤。
第一步,需要再pro檔案中加入 QT+= network
.h檔案
#ifndef WIDGET_H
#define WIDGET_H
#include <QWidget>
#include <QLabel>
#include <QPushButton>
#include <QLineEdit>
#include <QGridLayout>
#include <QMessageBox>
#include <QHostInfo>
#include <QNetworkInterface>
class Widget : public QWidget
{
Q_OBJECT
public:
Widget(QWidget *parent = 0);
~Widget();
void getHostInformation();
public slots:
void slotDetail();
private:
QLabel *hostLabel;
QLineEdit *LineEditLocalHostName;
QLabel *ipLabel;
QLineEdit *LineEditAddress;
QPushButton *detailBtn;
QGridLayout *mainLayout;
};
#endif // WIDGET_H
.cpp檔案
#include "widget.h"
#include <QDebug>
Widget::Widget(QWidget *parent)
: QWidget(parent)
{
hostLabel = new QLabel(tr("主機名:"));
LineEditLocalHostName = new QLineEdit;
ipLabel = new QLabel(tr("IP 位址:"));
LineEditAddress = new QLineEdit;
detailBtn = new QPushButton(tr("詳細"));
mainLayout = new QGridLayout(this);
mainLayout->addWidget(hostLabel,0,0);
mainLayout->addWidget(LineEditLocalHostName,0,1);
mainLayout->addWidget(ipLabel,1,0);
mainLayout->addWidget(LineEditAddress,1,1);
mainLayout->addWidget(detailBtn,2,0,1,2);
getHostInformation();
connect(detailBtn,SIGNAL(clicked()),this,SLOT(slotDetail()));
}
Widget::~Widget()
{
}
void Widget::getHostInformation()
{
QString localHostName = QHostInfo::localHostName();
LineEditLocalHostName->setText(localHostName);
QHostInfo hostInfo = QHostInfo::fromName(localHostName);
QList<QHostAddress> listAddress = hostInfo.addresses();
qDebug()<<listAddress;
if(!listAddress.isEmpty())
{
LineEditAddress->setText(listAddress.at(4).toString());
}
}
void Widget::slotDetail()
{
QString detail="";
QList<QNetworkInterface> list=QNetworkInterface::allInterfaces();
//(a)
for(int i=0;i<list.count();i++)
{
QNetworkInterface interface=list.at(i);
detail=detail+tr("裝置:")+interface.name()+"\n";
//(b)
detail=detail+tr("硬體位址:")+interface.hardwareAddress()+"\n";
//(c)
QList<QNetworkAddressEntry> entryList=interface.addressEntries();
//(d)
for(int j=1;j<entryList.count();j++)
{
QNetworkAddressEntry entry=entryList.at(j);
detail=detail+"\t"+tr("IP 位址:")+entry.ip().toString()+"\n";
detail=detail+"\t"+tr("子網路遮罩:")+entry.netmask().toString() +"\n";
detail=detail+"\t"+tr("廣播位址:")+entry.broadcast().toString() +"\n";
}
}
QMessageBox::information(this,tr("Detail"),detail);
}
工程位址:https://gitee.com/DreamLife-Technology_DreamLife/NetworkInformation