调用ansys二次开发接口对桁架结构进行仿真，java编写。-Call ansys secondary development interface truss structure simulation, java write.

> Influenced by JSFTemplating > Publish/Subscribe event bus for things that happen during the JSF Lifecycle, not application specific > Inspired by Solaris Dtrace, Linux strace, truss, etc. > Listeners can be registered at three