import java.net.InetAddress;
import java.net.NetworkInterface;
public class Test {
//获取MAC地址的方法
private static String getMACAddress(InetAddress ia)throws Exception{
//获得网络
接口对象(即网卡),并得到mac地址,mac地址存在于一个byte数组中。
byte[] mac = NetworkInterface.getByInetAddress(ia).getHardwareAddress();
//下面代码是把mac地址拼装成String
StringBuffer sb = new StringBuffer();
for(int i=0;i<mac.length;i++){
if(i!=0){
sb.append("-");
}
//mac[i] & 0xFF 是为了把byte转化为正整数
String s = Integer.toHexString(mac[i] & 0xFF);
sb.append(s.length()==1?0+s:s);
}
//把字符串所有小写字母改为大写成为正规的mac地址并返回
return sb.toString().toUpperCase();
}
/**
* @param args
* @throws Exception
*/
public static void main(String[] args) throws Exception {
// TODO Auto-generated method stub
InetAddress ia = InetAddress.getLocalHost();//获取本地IP对象
System.out.println("IP ......... "+ia.getHostAddress());
System.out.println("MAC ......... "+getMACAddress(ia));
}
}