参考博客:
https://blog.csdn.net/chinrui/article/details/74906748 Drools 简介
https://zhuanlan.zhihu.com/p/27428495 Drools-应用
https://www.cnblogs.com/cicada-smile/p/11632629.html SpringBoot2 整合 Drools规则引擎,实现高效的业务规则
http://www.ityouknow.com/drools/2017/08/07/drools-started.html 规则引擎drools教程一