创建NetWorkInformation类，main.cpp直接生成。
1 #include "networkinformation.h" 2 #include <QApplication> 3 4 int main(int argc, char *argv[]) 5 { 6 QApplication a(argc, argv); 7 NetworkInformation w; 8 w.show(); 9 10 return a.exec(); 11 }
头文件声明要写的槽函数，还有布局控件。
1 #ifndef NETWORKINFORMATION_H 2 #define NETWORKINFORMATION_H 3 4 #include <QWidget> 5 #include <QHostInfo> 6 #include <QNetworkInterface> 7 #include <QLabel> 8 #include <QLineEdit> 9 #include <QPushButton> 10 #include <QGridLayout> 11 class NetworkInformation : public QWidget 12 { 13 Q_OBJECT 14 15 public: 16 NetworkInformation(QWidget *parent = 0); 17 ~NetworkInformation(); 18 public: 19 void getHostInformation(); 20 public slots: 21 void slotDetail(); 22 private: 23 QLabel *hostLabel; 24 QLineEdit *LineEditLocalHostname; 25 QLabel * ipLabel; 26 QLineEdit * LineEditAddress; 27 QPushButton* detailBtn; 28 QGridLayout * mainLayout; 29 }; 30 31 #endif // NETWORKINFORMATION_H
最后是.cpp的文件。
在构造函数里写控件的布局，然后实现槽函数。
1 #include "networkinformation.h" 2 #include <QMessageBox> 3 NetworkInformation::NetworkInformation(QWidget *parent) 4 : QWidget(parent) 5 { 6 hostLabel = new QLabel("name:"); 7 LineEditLocalHostname = new QLineEdit; 8 ipLabel = new QLabel(tr("ip:")); 9 LineEditAddress = new QLineEdit; 10 detailBtn = new QPushButton(tr("detail")); 11 mainLayout =new QGridLayout(this); 12 13 mainLayout->addWidget(hostLabel,0,0); 14 mainLayout->addWidget(LineEditLocalHostname,0,1); 15 mainLayout->addWidget(ipLabel,1,0); 16 mainLayout->addWidget(LineEditAddress,1,1); 17 mainLayout->addWidget(detailBtn,2,0,1,2); 18 getHostInformation(); 19 connect(detailBtn,SIGNAL(clicked()),this,SLOT(slotDetail())); 20 } 21 22 NetworkInformation::~NetworkInformation() 23 { 24 25 } 26 void NetworkInformation::getHostInformation() 27 { 28 QString localHostName = QHostInfo::localHostName(); 29 LineEditLocalHostname->setText(localHostName); 30 31 QHostInfo hostinfo = QHostInfo::fromName(localHostName); 32 33 foreach (const QHostAddress &address, hostinfo.addresses()) 34 { 35 36 if (address.protocol() == QAbstractSocket::IPv4Protocol) 37 { 38 LineEditAddress->setText((address.toString())); 39 } 40 } 41 } 42 void NetworkInformation::slotDetail() 43 { 44 QString detail="123"; 45 QList<QNetworkInterface>list=QNetworkInterface::allInterfaces(); 46 for(int i=0;i<list.count();i++) 47 { 48 QNetworkInterface interface = list.at(i); 49 detail= detail+tr("设备：")+interface.name()+" "; 50 detail= detail+tr("硬件地址：")+interface.hardwareAddress()+" "; 51 QList<QNetworkAddressEntry>entryList = interface.addressEntries(); 52 for(int j =0;j<entryList.count();j++) 53 { 54 /QNetworkAddressEntry entry = entryList.at(i); 55 detail = detail + " " +tr("IP 地址：")+entry.ip().toString()+" "; 56 detail = detail + " " + tr("子网掩码：")+entry.netmask().toString()+" "; 57 detail = detail + " " +tr("广播地址：") +entry.broadcast().toString()+" "; 58 } 59 } 60 QMessageBox::information(this,tr("Detail"),detail); 61 }