Interceptor

structs.xml 配置

<action name="hello" class="org.apache.struts.helloworld.action.HelloWorldAction" method="execute">
     <result name="success">/HelloWorld.jsp</result>
     <interceptor-ref name="exception"/>
     <interceptor-ref name="alias"/>
     <interceptor-ref name="params"/>
     <interceptor-ref name="servletConfig"/>
     <interceptor-ref name="prepare"/>
     <interceptor-ref name="i18n"/>
     <interceptor-ref name="chain"/>
     <interceptor-ref name="modelDriven"/>
     <interceptor-ref name="fileUpload"/>
     <interceptor-ref name="staticParams"/>
     <interceptor-ref name="params"/>
     <interceptor-ref name="conversionError"/>
     <interceptor-ref name="validation">
     <param name="excludeMethods">myValidationExcudeMethod</param>
     </interceptor-ref>
     <interceptor-ref name="workflow">
     <param name="excludeMethods">myWorkflowExcludeMethod</param>
     </interceptor-ref>
 </action>
 

Method 2:

 <action name="myAction" class="myActionClass">
   <interceptor-ref name="defaultStack">
     <param name="validation.excludeMethods">myValidationExcludeMethod</param>
     <param name="workflow.excludeMethods">myWorkflowExcludeMethod</param>
   </interceptor-ref>
 </action>
In the first method, the whole default stack is copied and the parameter then changed accordingly.
In the second method, the 'interceptor-ref' refer to an existing interceptor-stack, namely defaultStack in this example, and override the validator and workflow interceptor excludeMethods typically in this case. Note that in the 'param' tag, the name attribute contains a dot (.) the word before the dot(.) specifies the interceptor name whose parameter is to be overridden and the word after the dot (.) specifies the parameter itself