Java 获取本机MAC地址

package com.mobai.util;

//实际使用时MAC地址差1

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

public class GetMac {
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;
}
}