struts2中web.xml3种配置的区别？

Question

<filter-class>org.apache.struts2.dispatcher.ng.filter.StrutsPrepareFilter</filter-class><filter-class>org.apache.struts2.dispatcher.ng.filter.StrutsExecuteFilter</filter-class><filter-class>org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter</filter-class>
三种filter的区别是什么？谢谢。

Answer 1

StrutsPrepareAndExecuteFilter 是 StrutsPrepareFilter和 StrutsExecuteFilter功能上的合并