[JAVA]取得目前使用中的網卡mac

 

package getmac;



import java.net.InetAddress;

import java.net.NetworkInterface;

import java.net.SocketException;

import java.net.UnknownHostException;

import java.util.logging.Level;

import java.util.logging.Logger;



/**

 *

 * @author flowercatswets

 */

public class GetMac {

    public static void main(String[] args) {

        byte[] mac;

        try {

            //取得本機的IP

            InetAddress address = InetAddress.getLocalHost();

            //依據取得的IP取得網卡

            NetworkInterface ni = NetworkInterface.getByInetAddress(address);
//取出網卡mac

            mac = ni.getHardwareAddress();

            //把網卡mac格式化輸出 xx-xx-xx-xx-xx-xx

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

                    System.out.format("%02X%s", mac[i], (i < mac.length - 1) ? "-"

                                    : "");

            }

            System.out.print("\n");            

        } catch (UnknownHostException | SocketException ex) {

            Logger.getLogger(GetMac.class.getName()).log(Level.SEVERE, null, ex);

        }

    }    

}

參考來源：
https://code.google.com/p/rogued/source/browse/trunk/src/DHCPUtility.java?r=6