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Qt之获取本机网络信息（超详细）

2024-08-31 22:58:01   218人阅读

   经常使用命令行来查看一些计算机的配置信息。

1.首先按住键盘上的“开始键+R键”，然后在弹出的对话框中输入“CMD”，回车
另外，还可以依次点击 开始>所有程序>附件>命令提示符
2.接下来在弹出的命令提示符窗口中输入“ipconfig /all”并按键盘上的回车，(注：ipconfig 命令为查看IP配置信息，参数“all”表示查看所有网卡的全部配置信息）
    如下图所示：
技术分享

    那么，在Qt中如何获取主机名、IP、端口、MAC等信息？
主要使用到的类有：
  • QHostInfo
  • QHostAddress
  • QNetworkInterface
  • QNetworkAddressEntry
1.获取登录用户
 
QString name = qgetenv("USERNAME");qDebug() << "User Name:" << name;
输出：
User Name: "wangl-d"
 
2.获取主机名、IP地址
 
//QHostInfo类作用，获取主机名，也可以通过主机名来查找IP地址，或者通过IP地址来反向查找主机名。QString localHostName = QHostInfo::localHostName();qDebug() << "LocalHostName:" << localHostName;//获取IP地址QHostInfo info = QHostInfo::fromName(localHostName);qDebug() << "IP Address:" << info.addresses();foreach(QHostAddress address, info.addresses()){    if (address.protocol() == QAbstractSocket::IPv4Protocol)        qDebug() << "IPv4 Address:" << address.toString();}foreach (QHostAddress address, QNetworkInterface::allAddresses()){    qDebug() << "Address:" << address;}
输出：

LocalHostName: "wangl-d-pc"

IP Address: (QHostAddress("fe80::396e:183d:aac6:f7f2") , QHostAddress( "192.168.118.55" ) )

IPv4 Address: "192.168.118.55"

Address: QHostAddress( "fe80::396e:183d:aac6:f7f2" )

Address: QHostAddress( "192.168.118.55" )

Address: QHostAddress( "::1" )

Address: QHostAddress( "127.0.0.1" )

Address: QHostAddress( "fe80::5efe:c0a8:7637" )

Address: QHostAddress( "fe80::e0:0:0:0" )  

 

3.获取设备名、MAC地址、子网掩码、广播地址等

 
//获取所有网络接口的列表foreach (QNetworkInterface netInterface, QNetworkInterface::allInterfaces()){    //设备名    qDebug() << "Device:" << netInterface.name();    //MAC地址    qDebug() << "HardwareAddress:" << netInterface.hardwareAddress();    QList entryList = netInterface.addressEntries();    //遍历每一个IP地址(每个包含一个IP地址，一个子网掩码和一个广播地址)    foreach(QNetworkAddressEntry entry, entryList)    {        //IP地址        qDebug() << "IP Address:" << entry.ip().toString();        //子网掩码        qDebug() << "Netmask:" << entry.netmask().toString();        //广播地址        qDebug() << "Broadcast:" << entry.broadcast().toString();    }}
输出： 

Device: "{4C5C2613-C18F-416A-A21F-47B707C3B935}"

HardwareAddress: "74:D4:35:1B:A6:2F"

IP Address: "fe80::396e:183d:aac6:f7f2"

Netmask: "ffff:ffff:ffff:ffff::"

Broadcast: ""

IP Address: "192.168.118.55"

Netmask: "255.255.255.0"

Broadcast: "192.168.118.255"

Device: "{846EE342-7039-11DE-9D20-806E6F6E6963}"

HardwareAddress: ""

IP Address: "::1"

Netmask: "ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffff"

Broadcast: ""

IP Address: "127.0.0.1"

Netmask: ""

Broadcast: ""

Device: "{539F3167-F67C-432D-8904-34129F3F5521}"

HardwareAddress: "00:00:00:00:00:00:00:E0"

IP Address: "fe80::5efe:c0a8:7637"

Netmask: "ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffff"

Broadcast: ""

Device: "{5DECB4C5-20AC-4BD6-A685-9FE608ED6EF5}"

HardwareAddress: "00:00:00:00:00:00:00:E0"

IP Address: "fe80::e0:0:0:0"

Netmask: "ffff:ffff:ffff:ffff::"

Broadcast: "" 

 

http://blog.sina.com.cn/s/blog_a6fb6cc90102v0mz.html

Qt之获取本机网络信息（超详细）


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