Struts 2是Struts的下一代产品，是在 struts 1和WebWork的技术基础上进行了合并的全新的Struts 2框架。其全新的Struts 2的体系结构与Struts 1的体系结构差别巨大。Struts 2以WebWork为核心，采用拦截器的机制来处理用户的请求，这样的设计也使得业务逻辑控制器能够与ServletAPI完全脱离开，所以Struts 2可以理解为WebWork的更新产品。虽然从Struts 1到Struts 2有着太大的变化，但是相对于WebWork，Struts 2的变化很小。-Struts Struts 2 is the next generation of products, is in the struts 1 and WebWork technology based on a combination new Struts 2 framework. Its new architecture of Struts 2 architecture with Struts 1 huge difference. Struts 2 with WebWork as the core, the interceptor mechanism to deal with the user' s request, this design also makes the business logic controllers capable ServletAPI completely out of the open, so WebWork Struts 2 can be understood as updated product. Although Struts 1 to Struts 2 has changed much, but relative to WebWork, Struts 2 little change.