获取本机CPU,MAC,IP地址

//定义时间格式，获取当前时间
        String requestTime = new SimpleDateFormat("yyyyMMddHHmmss").format(new Date());

package com.picc.pay.openapi;

import java.awt.*;
import java.io.BufferedReader;
import java.io.File;
import java.io.FileWriter;
import java.io.InputStreamReader;
import java.net.*;
import java.util.ArrayList;
import java.util.Enumeration;


/**
 * @Author:Mr.zhj
 * @Date:2022/4/11 21:06
 * @Description:
 */
public class MacUtil {
    /**
     * 获取本机Mac地址
     * @return
     * @throws Exception
     */
    public static String getMacByIP() throws Exception {
        return getMacByIP(InetAddress.getLocalHost().getHostAddress());
    }
    public static String getMacByIP(String IP) throws Exception {

        InetAddress ia = InetAddress.getByName(IP);
        byte[] mac = NetworkInterface.getByInetAddress(ia).getHardwareAddress();
        StringBuffer sb = new StringBuffer();
        for (int i = 0; i < mac.length; i++) {
            if (i != 0) {
                sb.append("-");
            }
            String hexString = Integer.toHexString(mac[i] & 0xFF);
            sb.append(hexString.length() == 1 ? "0" + hexString : hexString);
        }
        return sb.toString().toUpperCase();

    }

    /**
     * 获取CPU序列号
     * @return
     */
    public static String getCPUSerial() {
        String result = "";
        try {
            File file = File.createTempFile("tmp", ".vbs");
            file.deleteOnExit();
            FileWriter fw = new java.io.FileWriter(file);
            String vbs = "Set objWMIService = GetObject(\"winmgmts:\\\\.\\root\\cimv2\")\n"
                    + "Set colItems = objWMIService.ExecQuery _ \n"
                    + "   (\"Select * from Win32_Processor\") \n"
                    + "For Each objItem in colItems \n"
                    + "    Wscript.Echo objItem.ProcessorId \n"
                    + "    exit for  ' do the first cpu only! \n" + "Next \n";

            // + "    exit for  \r\n" + "Next";
            fw.write(vbs);
            fw.close();
            String path = file.getPath().replace("%20", " ");
            Process p = Runtime.getRuntime().exec(
                    "cscript //NoLogo " + path);
            BufferedReader input = new BufferedReader(new InputStreamReader(
                    p.getInputStream()));
            String line;
            while ((line = input.readLine()) != null) {
                result += line;
            }
            input.close();
            file.delete();
        } catch (Exception e) {
            e.fillInStackTrace();
        }
        if (result.trim().length() < 1 || result == null) {
            result = "无CPU_ID被读取";
        }
        return result.trim();
    }


}

       //获取IP地址
        InetAddress addr = InetAddress.getLocalHost();
        System.out.println("本机主机端口号："+addr);
        //获取mac地址
        String macByIP = MacUtil.getMacByIP();
        System.out.println("获取本机mac接口："+macByIP);
        //设备id
        String cpuSerial = MacUtil.getCPUSerial();
        System.out.println("获取本机CPU序列号："+cpuSerial);