IPutils获取本机mac

朴灿烈づ我的快乐病毒、 2022-08-27 12:55 258阅读 0赞

package com.ctl.util;
import java.net.InetAddress;
import java.net.NetworkInterface;
import java.net.SocketException;
import java.net.UnknownHostException;
/**
 * 
 * @author Administrator
 *
 */
public class IPutils {
    /**
     * 获取mac地址
     * @return  mac
     * @throws SocketException
     * @throws UnknownHostException
     */
    private static String getLocalMac() throws SocketException, UnknownHostException {
        //获取网卡，获取地址
        byte[] mac = NetworkInterface.getByInetAddress(InetAddress.getLocalHost()).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);
            }
        }
        return sb.toString().toUpperCase();
    }
}