Java读取本地机器MAC地址

package org.liufei.jweb;

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

public class MacAddress {

	private static String hexByte(byte b) {
		String s = "000000" + Integer.toHexString(b);
		return s.substring(s.length() - 2);
	}

	public static String getHostMAC(String split) throws SocketException {
		Enumeration<NetworkInterface> networkInterface_enumeration;
		String mac_address = "";
		networkInterface_enumeration = NetworkInterface.getNetworkInterfaces();
		while (networkInterface_enumeration.hasMoreElements()) {
			byte[] mac = networkInterface_enumeration.nextElement().getHardwareAddress();
			if (mac == null)
				continue;
			mac_address = hexByte(mac[0]) + split + hexByte(mac[1]) + split
					+ hexByte(mac[2]) + split + hexByte(mac[3]) + split
					+ hexByte(mac[4]) + split + hexByte(mac[5]);
		}
		return mac_address;
	}

	public static void main(String[] args) throws SocketException {
		System.out.println(MacAddress.getHostMAC(":"));
	}
}