java 获取 MAC OS 网卡的 MAC 地址

java 获取 MAC OS 网卡的 MAC 地址

package com.macro.mall.portal.util;

import java.net.NetworkInterface;
import java.net.SocketException;
import java.util.Enumeration;

public class mac {

    public static void main(String[] args) {
        try {
            Enumeration<NetworkInterface> networkInterfaces = NetworkInterface.getNetworkInterfaces();
            while (networkInterfaces.hasMoreElements()) {
                NetworkInterface networkInterface = networkInterfaces.nextElement();
                byte[] macAddress = networkInterface.getHardwareAddress();
                if (macAddress != null) {
                    System.out.print("MAC address for " + networkInterface.getName() + ": ");
                    for (int i = 0; i < macAddress.length; i++) {
                        System.out.format("%02X%s", macAddress[i], (i < macAddress.length - 1) ? "-" : "");
                    }
                    System.out.println();
                }
            }
        } catch (SocketException e) {
            e.printStackTrace();
        }
    }
}

测试结果：直接请求获取到的数据+换网请求获取到的数据是一样的，关机重启后：MAC address for llw0，MAC address for awdl0会变化，想要一台电脑一直获取同样的数据时，可以加个判断，再输出

if ("en0".equals(nic.getName())) {

}