JAVA获取本机IP和Mac地址

项目中有个需要要获取本机的Ip或是Mac地址,进行身份和权限验证,本文记录一下java代码获取ip和Mac。

package com.lgdz.hclient.utils;

import java.net.InetAddress;
import java.net.NetworkInterface;
import java.net.SocketException;
import java.net.UnknownHostException;

/**
 * @创建人 duo
 * @创建时间 2021-01-22
 * @邮箱 928970622@qq.com
 * @作用
 */
public class LOCALMAC {
    /**
     * @param args
     * @throws UnknownHostException
     * @throws SocketException
     */
    public static void main(String[] args) throws UnknownHostException, SocketException {
        // TODO Auto-generated method stub

        //得到IP，输出PC-201309011313/122.206.73.83
        InetAddress ia = InetAddress.getLocalHost();
        System.out.println(ia);
        getLocalMac(ia);
    }
    private static void getLocalMac(InetAddress ia) throws SocketException {
        // TODO Auto-generated method stub
        //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());
    }
}

运行效果

标签：SocketException,java,IP,println,str,sb,ia,JAVA,本机
来源： https://blog.csdn.net/weixin_43301027/article/details/112978644