package com.xuwen.utils;

import org.junit.Test;

import java.util.UUID;

/**
 * author:xuwen
 * Created on 2021/7/24
 */
public class IDUtils {
    //
    public static String getId(){
        //UUID这个类！！随机数字，保证唯一
        return UUID.randomUUID().toString().replaceAll("-","");
    }

    @Test
    public void testID(){
        System.out.println(IDUtils.getId());
        System.out.println(IDUtils.getId());
        System.out.println(IDUtils.getId());

    }
}