java生成唯一ID

package com.wang.util;


import org.junit.Test;

import java.util.UUID;

@SuppressWarnings("all")   //镇压警告
public class IDutil {

    public static String getId(){

        return UUID.randomUUID().toString().replaceAll("-",""); //用空格取代-
    }


    @Test
    public void test(){

        for (int i = 0; i < 10; i++) {
            System.out.println(IDutil.getId());
        }

    }

}

输出结果