Jbpm，他是jboss下的一个开源项目，是个基于petri net理论为基础的工作流引擎。本文主要通过jbpm源代码分析下jbpm引擎内核工作原理。-Jbpm, he is an open source project under jboss, is a theory based on petri net-based workflow engine. This paper analyzes the source code through the jbpm engine under the j