java取得网卡物理地址

方法一

 

public static void main(String[] args) throws Exception {

        Enumeration<NetworkInterface> networkInterfaces = NetworkInterface.getNetworkInterfaces();

        while (networkInterfaces.hasMoreElements()) {

            NetworkInterface ni = networkInterfaces.nextElement();

            Enumeration<InetAddress> inetAddresses = ni.getInetAddresses();

            while (inetAddresses.hasMoreElements()) {

                InetAddress inetAddress = inetAddresses.nextElement();

                System.out.println(inetAddress.getHostAddress());

            }

        }

    }

 

 

方法二

InetAddress ip = InetAddress.getLocalHost();

NetworkInterface network = NetworkInterface.getByInetAddress(ip);

byte[] mac = network.getHardwareAddress();

System.out.print("Current MAC address : ");

StringBuilder sb = new StringBuilder();

for (int i = 0; i < mac.length; i++) {

    sb.append(String.format("%02X%s", mac[i], (i < mac.length - 1) ? "-" : ""));

}

System.out.println(sb.toString());