package com.example.jz.utils; import java.util.Date; public class IdUtils { public static String getAduitId() { String time = String.valueOf(new Date().getTime()); String txt = "1234567890"; int len = 13; String pwd = ""; for (int i = 0; i < len; i++) { pwd += txt.charAt((int) Math.floor(Math.random() * txt.length())); } String s = time + pwd; return s; } public static void main(String[] args) { System.out.println(getAduitId()); } }