[网络协议]Java 获取本机IP地址

1 获取局域网IP地址

InetAddress.getLocalHost().getHostAddress();

2 获取全部 IPV4/IPV6 IP地址

private static List<String> getIpAddress() throws SocketException {
    List<String> list = new LinkedList<>();
    Enumeration enumeration = NetworkInterface.getNetworkInterfaces();
    while (enumeration.hasMoreElements()) {
        NetworkInterface network = (NetworkInterface) enumeration.nextElement();
        if (network.isVirtual() || !network.isUp()) {
            continue;
        } else {
            Enumeration addresses = network.getInetAddresses();
            while (addresses.hasMoreElements()) {
                InetAddress address = (InetAddress) addresses.nextElement();
                if (address != null && (address instanceof Inet4Address || address instanceof Inet6Address)) {
                    list.add(address.getHostAddress());
                }
            }
        }
    }
    return list;
}

3 获取全部存放本机IP地址

private static List<String> getIpAddress() throws SocketException {
    List<String> list = new LinkedList<>();
    Enumeration enumeration = NetworkInterface.getNetworkInterfaces();
    while (enumeration.hasMoreElements()) {
        NetworkInterface network = (NetworkInterface) enumeration.nextElement();
        Enumeration addresses = network.getInetAddresses();
        while (addresses.hasMoreElements()) {
            InetAddress address = (InetAddress) addresses.nextElement();
            if (address != null && (address instanceof Inet4Address || address instanceof Inet6Address)) {
                list.add(address.getHostAddress());
            }
        }
    }
    return list;
}