Java - 获取Linux系统的MAC地址

ifconfig | grep -o -E 'eth0|eth1|eth2|wlan0|wlan1|wlan2|enp0s8|enp1s8|enp2s8|enp3s8' | awk -F ' ' '{print $5}'

import java.net.NetworkInterface;
import java.net.SocketException;

public class GetMacAddr {
    public static void main(String[] args) {
        try {
            // 获取网络接口
            NetworkInterface networkInterface = NetworkInterface.getByName("eth0");
            if (networkInterface != null) {
                byte[] macAddress = networkInterface.getHardwareAddress();
                if (macAddress != null) {
                    String macAddressStr = new String(macAddress);
                    System.out.println("MAC地址: " + macAddressStr);
                }
            }
        } catch (SocketException e) {
            System.err.println("SocketException: " + e.getMessage());
        }
    }
}