阅读本文大概需要 3 分钟
获取本机网卡过程中，可以会遇到电脑包含多种网卡场景
- 有线网卡
- 无线网卡
- 虚拟网卡，安装虚拟机后会有
- 安装 VNP 类软件，也会有对应的 IP 地址
具体实际使用时根据业务需要进行过滤即可
测试代码
QString ipAddr;
QList<QHostAddress> list = QNetworkInterface::allAddresses();
foreach (QHostAddress address, list)
{
qDebug() << address.protocol() << address.toString();
if (address.protocol() == QAbstractSocket::IPv4Protocol) {
ipAddr = address.toString();
break;
}
}
qDebug() << "ipAddr:" << ipAddr << endl;
QList<QNetworkInterface> interfaces = QNetworkInterface::allInterfaces();
QList<QNetworkAddressEntry> entry;
foreach(QNetworkInterface inter, interfaces)
{
qDebug() << "humanReadableName:" << inter.humanReadableName()
<< "name:" << inter.name() << " flags:" << inter.flags()
<< "type:" << inter.type() << " hardwareAddress:" << inter.hardwareAddress() << endl;
entry = inter.addressEntries();
qDebug() << "#addressEntries:" << entry.size();
int cnt = entry.size();
for (int i = 0; i < cnt; ++i)
{
qDebug() << i << entry.at(i).ip().protocol() << entry.at(i).ip().toString();
}
}
qDebug() << "getIP Address ==========" << endl;
foreach(QNetworkInterface inter, interfaces)
{
bool bValid = inter.flags() & (QNetworkInterface::IsUp | QNetworkInterface::IsRunning);
entry = inter.addressEntries();
if (bValid)
{
int cnt = entry.size();
for (int i = 0; i < cnt; ++i)
{
if (entry.at(i).ip().protocol() == QAbstractSocket::IPv4Protocol)
{
if (-1 != inter.name().indexOf("wireless"))
{
qDebug() << i << "wireless ip:" <<entry.at(i).ip().toString()
<<" broadcast:" << entry.at(i).broadcast().toString()
<< " netmask:" << entry.at(i).netmask().toString();;
}
else if (-1 != inter.name().indexOf("ethernet"))
{
qDebug() << i << "ethernet ip:" <<entry.at(i).ip().toString()
<<" broadcast:" << entry.at(i).broadcast().toString()
<< " netmask:" << entry.at(i).netmask().toString();
}
}
}
}
}
输出结果
QAbstractSocket::IPv6Protocol "fe80::bcad:65e8:d6c6:2123%ethernet_32777"
QAbstractSocket::IPv4Protocol "2.0.0.1"
ipAddr: "2.0.0.1"
humanReadableName: "以太网 4" name: "ethernet_32777" flags: QFlags<QNetworkInterface::InterfaceFlag>(IsUp|IsRunning|CanBroadcast|CanMulticast) type: QNetworkInterface::Ethernet hardwareAddress: "00:FF:35:35:41:5B"
#addressEntries: 2
0 QAbstractSocket::IPv6Protocol "fe80::bcad:65e8:d6c6:2123%ethernet_32777"
1 QAbstractSocket::IPv4Protocol "2.0.0.1"
humanReadableName: "以太网 5" name: "ethernet_32771" flags: QFlags<QNetworkInterface::InterfaceFlag>(CanBroadcast|CanMulticast) type: QNetworkInterface::Ethernet hardwareAddress: "08:00:58:00:00:05"
#addressEntries: 2
0 QAbstractSocket::IPv6Protocol "fe80::5d68:608:4d99:501e%ethernet_32771"
1 QAbstractSocket::IPv4Protocol "169.254.80.30"
humanReadableName: "以太网" name: "ethernet_32768" flags: QFlags<QNetworkInterface::InterfaceFlag>(IsUp|IsRunning|CanBroadcast|CanMulticast) type: QNetworkInterface::Ethernet hardwareAddress: "F4:8E:38:A9:EC:D8"
#addressEntries: 2
0 QAbstractSocket::IPv6Protocol "fe80::49c4:80c5:e8f:c341%ethernet_32768"
1 QAbstractSocket::IPv4Protocol "192.168.1.29"
humanReadableName: "VMware Network Adapter VMnet1" name: "ethernet_32775" flags: QFlags<QNetworkInterface::InterfaceFlag>(IsUp|IsRunning|CanBroadcast|CanMulticast) type: QNetworkInterface::Ethernet hardwareAddress: "00:50:56:C0:00:01"
#addressEntries: 2
0 QAbstractSocket::IPv6Protocol "fe80::f515:9d16:7b33:4ee3%ethernet_32775"
1 QAbstractSocket::IPv4Protocol "192.168.229.1"
humanReadableName: "VMware Network Adapter VMnet8" name: "ethernet_32776" flags: QFlags<QNetworkInterface::InterfaceFlag>(IsUp|IsRunning|CanBroadcast|CanMulticast) type: QNetworkInterface::Ethernet hardwareAddress: "00:50:56:C0:00:08"
#addressEntries: 2
0 QAbstractSocket::IPv6Protocol "fe80::d545:673d:482f:ea1d%ethernet_32776"
1 QAbstractSocket::IPv4Protocol "192.168.230.1"
humanReadableName: "以太网 2" name: "ethernet_32770" flags: QFlags<QNetworkInterface::InterfaceFlag>(CanBroadcast|CanMulticast) type: QNetworkInterface::Ethernet hardwareAddress: "00:FF:24:2B:DD:2B"
#addressEntries: 2
0 QAbstractSocket::IPv6Protocol "fe80::f9f2:5176:b928:4b8f%ethernet_32770"
1 QAbstractSocket::IPv4Protocol "169.254.75.143"
humanReadableName: "本地连接* 2" name: "ethernet_32772" flags: QFlags<QNetworkInterface::InterfaceFlag>(CanBroadcast|CanMulticast) type: QNetworkInterface::Ethernet hardwareAddress: "00:FF:F5:C6:FA:42"
#addressEntries: 2
0 QAbstractSocket::IPv6Protocol "fe80::95b9:22c6:3c5f:8f3%ethernet_32772"
1 QAbstractSocket::IPv4Protocol "169.254.8.243"
humanReadableName: "Loopback Pseudo-Interface 1" name: "loopback_0" flags: QFlags<QNetworkInterface::InterfaceFlag>(IsUp|IsRunning|CanBroadcast|IsLoopBack|CanMulticast) type: QNetworkInterface::Loopback hardwareAddress: ""
#addressEntries: 2
0 QAbstractSocket::IPv6Protocol "::1"
1 QAbstractSocket::IPv4Protocol "127.0.0.1"
getIP Address ==========
1 ethernet ip: "2.0.0.1" broadcast: "2.0.0.255" netmask: "255.255.255.0"
1 ethernet ip: "192.168.1.29" broadcast: "192.168.1.255" netmask: "255.255.255.0"
1 ethernet ip: "192.168.229.1" broadcast: "192.168.229.255" netmask: "255.255.255.0"
1 ethernet ip: "192.168.230.1" broadcast: "192.168.230.255" netmask: "255.255.255.0"
get_ip ==========
#humanReadableName "以太网 4"
#humanReadableName "以太网 5"
#humanReadableName "以太网"
#humanReadableName "VMware Network Adapter VMnet1"
virtual net continue: "VMware Network Adapter VMnet1"
#humanReadableName "VMware Network Adapter VMnet8"
virtual net continue: "VMware Network Adapter VMnet8"
#humanReadableName "以太网 2"
#humanReadableName "本地连接* 2"
#humanReadableName "Loopback Pseudo-Interface 1"
virtual net continue: "Loopback Pseudo-Interface 1"
"192.168.1.29" : 1
"2.0.0.1" : 1
详细代码
/*
nType 0:ipv4, 1:ipv6
*/
QString GetLocalHostAddress(int nType)
{
QList<QNetworkInterface> interfaces = QNetworkInterface::allInterfaces();
QList<QNetworkAddressEntry> entry;
foreach(QNetworkInterface inter, interfaces)
{
// 过滤无效网卡信息
if (inter.humanReadableName().contains(QLatin1String("VMware"))
|| inter.humanReadableName().contains(QLatin1String("Loopback"))
|| inter.humanReadableName().contains(QLatin1String("VirtualBox")))
{
continue;
}
if (inter.flags() & (QNetworkInterface::IsUp | QNetworkInterface::IsRunning))
{
entry = inter.addressEntries();
for (int i = 0; i < entry.size(); i++)
{
if (entry.at(i).ip().protocol() == nType)
{
// 这里因为条件多，暂时只过滤 192开头的
// 无线可以这样过滤 -1 != inter.name().indexOf("wireless")
// -1 != inter.name().indexOf("ethernet")
QString strIP = entry.at(i).ip().toString();
if (strIP.startsWith(QLatin1String("192.")))
{
return strIP;
}
}
}
}
}
return "0.0.0.0";
}
作者:鹅卵石
时间: 2021年9月14日
版本:V 0.0.1
邮箱:kevinlq@163.com
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