package com.cm.security.utils;

import java.net.InetAddress;
import java.net.NetworkInterface;

public class AddressUtil {

	/**
	 * 获取MAC地址
	 * 
	 * @return
	 * @throws Exception
	 */
	public static final String getMacAddress() throws Exception {
		InetAddress inetAddress = InetAddress.getLocalHost();
		byte[] mac = NetworkInterface.getByInetAddress(inetAddress).getHardwareAddress();
		StringBuilder macAddress = new StringBuilder();
		for (byte macByte : mac) {
			if (macAddress.length() > 0) {
				macAddress.append("-");
			}
			int macInt = macByte & 0xff;
			String str = Integer.toHexString(macInt);
			macAddress.append(str.length() == 1 ? 0 + str : str);
		}
		return macAddress.toString().toUpperCase();
	}

}