Qt获取本地网络信息的实例

来源：互联网发布：网络类购物号名字大全编辑：程序博客网时间：2024/04/30 14:21

获取本机网络信息主要涉及到Qt的QHostInfo类和QNetworkInterface类

在QtCreator中新建一个QtWidgetApplication，命名为“NetworkInfo”，继承自QWidget类，不需要自动生成ui文件。

networkinfo.h文件的具体代码如下：
#ifndef NETWORKINFO_H
#define NETWORKINFO_H

#include <QWidget>
#include <QLabel>
#include <QPushButton>
#include <QLineEdit>
#include <QGridLayout>
#include <QMessageBox>
#include <QHostInfo>
#include <QNetworkInterface>

class NetworkInfo : public QWidget
{
Q_OBJECT

public:
NetworkInfo(QWidget *parent = 0);
~NetworkInfo();

void getHostInfomation();

private:
QLabel *hostLabel;
QLineEdit *LineEditLocalHostName;
QLabel *ipLabel;
QLineEdit *LineEditAddress;
QPushButton *detailBtn;
QGridLayout *mainLayout;

public slots:
void slotDetail();
};

#endif // NetworkInfo_H

networkinfo.cpp的具体代码如下：
#include "networkinfo.h"

NetworkInfo::NetworkInfo(QWidget *parent)
: QWidget(parent)
{
hostLabel = new QLabel(tr("主机名:"));
LineEditLocalHostName = new QLineEdit;

ipLabel = new QLabel(tr("IP地址:"));
LineEditAddress = new QLineEdit;

detailBtn = new QPushButton(tr("详细"));

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);

getHostInfomation();
connect(detailBtn, SIGNAL(clicked()), this, SLOT(slotDetail()));
}

NetworkInfo::~NetworkInfo()
{

}

void NetworkInfo::getHostInfomation(){
QString localHostName = QHostInfo::localHostName();
LineEditLocalHostName->setText(localHostName);

QHostInfo hostInfo = QHostInfo::fromName(localHostName);
QList listAddress = hostInfo.addresses();
if(!listAddress.isEmpty())
{
LineEditAddress->setText(listAddress.first().toString());
}
}

void NetworkInfo::slotDetail()
{
QString detail = "";
QList list = QNetworkInterface::allInterfaces();
for(int i=0;i<list.count();i++)
{
QNetworkInterface ni = list.at(i);
detail = detail + tr("设备") + ni.name() + "\n";
detail = detail + tr("硬件地址:") + ni.hardwareAddress() + "\n";

QList entryList = ni.addressEntries();
for (int j = 0; j<entryList.count();j++)
{
QNetworkAddressEntry nae = entryList.at(j);
detail = detail + tr("IP地址:") + nae.ip().toString() + "\n";
detail = detail + tr("子网掩码:") + nae.netmask().toString() + "\n";
detail = detail + tr("广播地址:") + nae.broadcast().toString() + "\n";
}
}
QMessageBox::information(this, tr("Detail"), detail);
}

main.cpp具体代码如下：
#include "networkinfo.h"
#include

int main(int argc, char *argv[])
{
QApplication a(argc, argv);
NetworkInfo ni;
ni.show();

return a.exec();
}

这样就实现了简单地获取本地网络信息的小程序。

 

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