qt中查看本机mac/ip地址

墨蓝 2022-08-22 12:28 492阅读 0赞

分享一下，qt中如何获取计算机的mac和ip地址。

首先申明，不能用windows api，为了跨平台。

**命令行查看**  
win+R cmd 出现命令提示行，键入:  
**ipconfig/all**  
![这里写图片描述][20160527233040945]

**QT中获取mac地址**

QString getMacAddress()
    {
        QString text;
        foreach(QNetworkInterface interface, QNetworkInterface::allInterfaces())
        {
            text += "Interface:"+interface.hardwareAddress()+"\n";
            if (!(interface.flags() & QNetworkInterface::IsRunning))
            {
              text = interface.hardwareAddress();
              qDebug() << text;
              return text;
            }
        }
    }

**把E4:F8:9C:D9:84:B1形式转为uint8\_t 数组**

#include <QGuiApplication>
    #include <QQmlApplicationEngine>
    #include <QString>
    #include "QtNetwork/qnetworkinterface.h"
    #include "qdebug.h"
    #include <qdatetime.h>
    #include <sstream>
    
    QString getMacAddress()
    {
        QString text;
        foreach(QNetworkInterface interface, QNetworkInterface::allInterfaces())
        {
            text += "Interface:"+interface.hardwareAddress()+"\n";
            if (!(interface.flags() & QNetworkInterface::IsRunning))
            {
              text = interface.hardwareAddress();
              qDebug() << text;
              return text;
            }
    
    
        }
    }
    
    int main(int argc, char *argv[])
    {
        uint8_t tgt_mac[6] = {
       0};
        std::stringstream ss( getMacAddress().toStdString() );
        char trash;
    
        for ( int i = 0; i < 6; i++ )
        {
            int foo;
            ss >> std::hex >> foo >> trash;
            tgt_mac[i] = foo;
        }
    
    
        for (int i=0; i < 6; i++)
        {
            qDebug() << tgt_mac[i];
        }
    
        QGuiApplication app(argc, argv);
    
    
        QQmlApplicationEngine engine;
        engine.load(QUrl(QStringLiteral("qrc:/main.qml")));
    
    
    
        return app.exec();
    }

**获得更多参数**

#include <QCoreApplication>
    #include <WinSock2.h>
    #include <iphlpapi.h>
    #include <QDebug>
    #include <QNetworkInterface>
    
    void getLocalIpWithQt();
    void getAdapterInfoWithQt();
    void getAdapterInfoWithWindows();
    int main(int argc, char *argv[])
    {
        QCoreApplication a(argc, argv);
    // getLocalIpWithQt();
    // getAdapterInfoWithQt();
        getAdapterInfoWithWindows();
        return a.exec();
    }
    
    void getLocalIpWithQt()
    {
        QList<QHostAddress> ipList = QNetworkInterface::allAddresses();
        foreach(QHostAddress ipItem, ipList)
        {
            //只显示以192开头的IP地址
            if(ipItem.protocol()==QAbstractSocket::IPv4Protocol&&ipItem!=QHostAddress::Null
                    &&ipItem!=QHostAddress::LocalHost&&ipItem.toString().left(3)=="192")
            {
                qDebug()<<ipItem.toString();
            }
        }
    }
    
    void getAdapterInfoWithQt()
    {
        QList<QNetworkInterface> interfaceList = QNetworkInterface::allInterfaces();
    
        foreach(QNetworkInterface interfaceItem, interfaceList)
        {
            if(interfaceItem.flags().testFlag(QNetworkInterface::IsUp)
                    &&interfaceItem.flags().testFlag(QNetworkInterface::IsRunning)
                    &&interfaceItem.flags().testFlag(QNetworkInterface::CanBroadcast)
                    &&interfaceItem.flags().testFlag(QNetworkInterface::CanMulticast)
                    &&!interfaceItem.flags().testFlag(QNetworkInterface::IsLoopBack)
                    &&interfaceItem.hardwareAddress()!="00:50:56:C0:00:01"
                    &&interfaceItem.hardwareAddress()!="00:50:56:C0:00:08")
            {
                QList<QNetworkAddressEntry> addressEntryList=interfaceItem.addressEntries();
                foreach(QNetworkAddressEntry addressEntryItem, addressEntryList)
                {
                    if(addressEntryItem.ip().protocol()==QAbstractSocket::IPv4Protocol)
                    {
                        qDebug()<<"------------------------------------------------------------";
                        qDebug()<<"Adapter Name:"<<interfaceItem.name();
                        qDebug()<<"Adapter Address:"<<interfaceItem.hardwareAddress();
                        qDebug()<<"IP Address:"<<addressEntryItem.ip().toString();
                        qDebug()<<"IP Mask:"<<addressEntryItem.netmask().toString();
                    }
                }
            }
        }
    }
    
    void getAdapterInfoWithWindows()
    {
        //PIP_ADAPTER_INFO结构体存储本机网卡信息,包括本地网卡、无线网卡和虚拟网卡
        PIP_ADAPTER_INFO pAdapterInfo=(IP_ADAPTER_INFO *) malloc(sizeof(IP_ADAPTER_INFO));
        ULONG ulOutBufLen = sizeof(IP_ADAPTER_INFO);
        //调用GetAdaptersInfo函数,填充pAdapterInfo指针变量，其中ulOutBufLen参数既是输入也是输出
        if(GetAdaptersInfo( pAdapterInfo, &ulOutBufLen) != ERROR_SUCCESS)
        {
            //如果分配失败，释放后重新分配
            GlobalFree (pAdapterInfo);
            pAdapterInfo = (IP_ADAPTER_INFO *) malloc (ulOutBufLen);
        }
        if(GetAdaptersInfo( pAdapterInfo, &ulOutBufLen) == NO_ERROR)
        {
            while (pAdapterInfo)
            {
                //pAdapter->Description中包含"PCI"为本地网卡，pAdapter->Type是71为无线网卡
                if(strstr(pAdapterInfo->Description,"PCI") > 0|| pAdapterInfo->Type == 71)
                {
                    //这里假设每个网卡只有一个IP
                    char * ipAddress=pAdapterInfo->IpAddressList.IpAddress.String;
                    char tempIpAddress[3]={
       '\0'};
                    memcpy(tempIpAddress,ipAddress,3);
                    //只显示IP以192开头的网卡信息
                    if(strstr(tempIpAddress,"192"))
                    {
                        printf("------------------------------------------------------------\n");
                        printf("Adapter Name: \t%s\n", pAdapterInfo->AdapterName);
                        printf("Adapter Description: \t%s\n", pAdapterInfo->Description);
                        printf("Adapter Address: \t");
                        for (UINT i = 0; i < pAdapterInfo->AddressLength; i++)
                        {
                            printf("%02X%c", pAdapterInfo->Address[i],
                            i == pAdapterInfo->AddressLength - 1 ? '\n' : '-');
                        }
                        printf("Adapter Type: \t%d\n", pAdapterInfo->Type);
                        printf("IP Address: \t%s\n", pAdapterInfo->IpAddressList.IpAddress.String);
                        printf("IP Mask: \t%s\n", pAdapterInfo->IpAddressList.IpMask.String);
                    }
                }
                pAdapterInfo = pAdapterInfo->Next;
            }
        }
        else
        {
            printf("Call to GetAdaptersInfo failed.\n");
        }
        if(pAdapterInfo)
        {
            GlobalFree (pAdapterInfo);
        }
    }

[20160527233040945]: /images/20220722/5b1a3f6a3c384163ae176a7f82cdc3b1.png