springboot资源下载https://flowable.com/open-source/downloads/
springboot集成flowable:https://zhuanlan.zhihu.com/p/67761802
flowable配置mysql数据源https://upliu.net/flowable-%E9%85%8D%E7%BD%AE%E8%BF%90%E8%A1%8C%E5%9C%A8-mysql-%E6%95%B0%E6%8D%AE%E5%BA%93.html
原文：https://www.cnblogs.com/cnndevelop/p/12887567.html