Layui:
https://lln.kim/layui/index.html
http://layui.bojiajy.cn/

layuimini
http://layuimini.99php.cn/

Pear Admin Layui:
http://www.pearadmin.com/

Spring Initializr：
https://start.spring.io/

easyweb:
https://www.kancloud.cn/sansui/easyweb/2141288

spring boot四层
https://blog.csdn.net/baidu_39298625/article/details/98102453