纯Java获得本地MAC地址

package test; import java.net.InetAddress; import java.net.NetworkInterface; import java.net.SocketException; import java.net.UnknownHostException; /**  * 获取本机的MAC地址、主机名、IP  * @author Administrator  *  */ public class GetMacAddress { /** * @param args * @throws UnknownHostException  * @throws SocketException  */ public static void main(String[] args) throws UnknownHostException, SocketException { InetAddress ia = InetAddress.getLocalHost(); //输出计算机名和IP System.out.println(ia); getLocalMac(ia); } private static void getLocalMac(InetAddress ia) throws SocketException { //获取网卡，获取地址 byte[] mac = NetworkInterface.getByInetAddress(ia).getHardwareAddress(); System.out.println("mac数组长度："+mac.length); StringBuffer sb = new StringBuffer(""); for(int i=0; i<mac.length; i++) { if(i!=0) { sb.append("-"); } //字节转换为整数 int temp = mac[i]&0xff; String str = Integer.toHexString(temp); System.out.println("每8位:"+str); if(str.length()==1) { sb.append("0"+str); }else { sb.append(str); } } System.out.println("本机MAC地址:"+sb.toString().toUpperCase()); } }