Java에서 MacAddress 가져오기

jdk 1.6 부터 java에서 MacAddress를 가져올 수 있다.

private ArrayList<String> getMacAddress(){
	
	ArrayList<String> macAddr = new ArrayList<String>();
	
	try {
		Enumeration<NetworkInterface> nif = NetworkInterface.getNetworkInterfaces();
		while(nif.hasMoreElements()){
			NetworkInterface nextElement = nif.nextElement();
			byte[] mac = nextElement.getHardwareAddress();
			if (mac != null) {
				StringBuilder sb = new StringBuilder();
				for (int i = 0; i < mac.length; i++) {
					sb.append(String.format("%02X%s", mac[i], (i < mac.length - 1) ? "-" : ""));
				}
				macAddr.add(sb.toString());
			}
		}
	} catch (Exception e) {
		e.printStackTrace();
	}

	return macAddr;
}