获取本机Mac的地址

   /*获取Mac地址*/
    private static String getLocalMac(InetAddress ia) throws SocketException {
        // TODO Auto-generated method stub
        byte[] mac = NetworkInterface.getByInetAddress(ia).getHardwareAddress();// 获取网卡，获取地址
        StringBuffer sb = new StringBuffer("");
        for (int i = 0; i < mac.length; i++) {
            if (i != 0) {
                sb.append("-");
            }
            int temp = mac[i] & 0xff;
            String str = Integer.toHexString(temp);
            if (str.length() == 1) {
                sb.append("0" + str);
            } else {
                sb.append(str);
            }
        }
        return sb.toString().toUpperCase();
    }


  public static void main(String[] args) {
        try{
            //获取本机的InetAddress实例
            InetAddress addr = InetAddress.getLocalHost();
            System.out.println("本机MAC地址:" + getLocalMac(addr));
        }catch (Exception e){
            e.printStackTrace();
        }
    }