JBPM4是一个扩展性很强的工作流系统，百分百用JAVA语言开发，持久层采用Hibernate实现,并有图形化的设计器,HelloJbpm里有几个完整的例子!-JBPM4 is a highly scalable workflow system, fully developed with JAVA language, the use of Hibernate persistence layer to achieve, as well a