规则引擎 Rule Engine
https://cloud.baidu.com/doc/RE/index.html
SRE(Simple Rule Engine) Document - 常大波 - 博客园
https://www.cnblogs.com/august/archive/2008/07/26/1252154.html
rule engine_rise51的专栏_rise51-CSDN博客
https://blog.csdn.net/rise51/category_6259784.html
Rule Engine之Drools - 在路上 - BlogJava
http://www.blogjava.net/gumingcn/archive/2010/09/25/332860.html