wisdomisite-java/src/main/java/com/zhgd/xmgl/util/ComputerInfo.java

package com.zhgd.xmgl.util;

import cn.hutool.crypto.SecureUtil;
import lombok.extern.slf4j.Slf4j;

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.net.InetAddress;
import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;
import java.util.regex.Matcher;
import java.util.regex.Pattern;

/**
 * @program: wisdomSite
 * @description: 获取当前电脑MAC地址或IP工具类
 * @author: Mr.Peng
 * @create: 2021-04-23 15:36
 **/

@Slf4j
public abstract class ComputerInfo {
    //private static String macAddressStr = null;
    private static String computerName = System.getenv().get("COMPUTERNAME");

    private static final String[] windowsCommand = { "ipconfig", "/all" };
    private static final String[] linuxCommand = { "/sbin/ifconfig", "-a" };
    private static final Pattern macPattern = Pattern.compile(".*((:?[0-9a-f]{2}[-:]){5}[0-9a-f]{2}).*",
            Pattern.CASE_INSENSITIVE);

    /**
     * 获取多个网卡地址
     *
     * @return
     * @throws IOException
     */
    private final static List<String> getMacAddressList() throws IOException {
        final ArrayList<String> macAddressList = new ArrayList<String>();
        final String os = System.getProperty("os.name");
        final String command[];

        if (os.startsWith("Windows")) {
            command = windowsCommand;
        } else if (os.startsWith("Linux")) {
            command = linuxCommand;
        } else {
            throw new IOException("Unknow operating system:" + os);
        }
        // 执行命令
        final Process process = Runtime.getRuntime().exec(command);

        BufferedReader bufReader = new BufferedReader(new InputStreamReader(process.getInputStream()));
        for (String line = null; (line = bufReader.readLine()) != null;) {
            Matcher matcher = macPattern.matcher(line);
            if (matcher.matches()) {
                macAddressList.add(matcher.group(1));
                // macAddressList.add(matcher.group(1).replaceAll("[-:]",
                // ""));//去掉MAC中的“-”
            }
        }

        process.destroy();
        bufReader.close();
        return macAddressList;
    }

    /**
     * 获取一个网卡地址（多个网卡时从中获取一个）
     *
     * @return
     */
    public static List<String> getMacAddress() {
        List<String> list=new ArrayList<>();
        try {
            List<String> macList = getMacAddressList();
            for (Iterator<String> iter = macList.iterator(); iter.hasNext();) {
                String amac = iter.next();
                if (!amac.equals("0000000000E0")) {
                    list.add(amac);
                }
            }
        } catch (IOException e) {
            log.error("error：", e);
        }
        return list;
    }

    /**
     * 对获取的网卡地址进行MD5加密
     *
     * @return
     */
    public static List<String> getMd5MacAddress() {
        List<String> list=getMacAddress();
        List<String> tempList=new ArrayList<>();
        if(list.size()>0){
            for(String str:list){
                tempList.add(SecureUtil.md5(str));
            }
        }
        return tempList;
    }


    /**
     * 获取电脑名
     *
     * @return
     */
    public static String getComputerName() {
        if (computerName == null || computerName.equals("")) {
            computerName = System.getenv().get("COMPUTERNAME");
        }
        return computerName;
    }

    /**
     * 获取客户端IP地址
     *
     * @return
     */
    public static String getIpAddrAndName() throws IOException {
        return InetAddress.getLocalHost().toString();
    }

    /**
     * 获取客户端IP地址
     *
     * @return
     */
    public static String getIpAddr() throws IOException {
        return InetAddress.getLocalHost().getHostAddress().toString();
    }



    /**
     * 限制创建实例
     */
    private ComputerInfo() {

    }

    public static void main(String[] args) throws IOException {
        //log.info(ComputerInfo.getMacAddress());
        //log.info(ComputerInfo.getComputerName());
        //log.info(ComputerInfo.getIpAddr());
        //log.info(ComputerInfo.getIpAddrAndName());
        System.out.println(SecureUtil.md5("30-9C-23-20-0B-05"));
    }

}