How to map request parameter to a bean with different name in struts2

Question

I know Struts 2 make automatic mapping from request parameter to action class fields using param interceptor. But what if I want to map a parameter to an action

Answer 1

Use the alias interceptor, nutshell:

<action name="someAction" class="com.examples.SomeAction">
    <!-- The value for the foo parameter will be applied as if it were named bar -->
    <param name="aliases">#{ 'foo' : 'bar' }</param>

    <interceptor-ref name="alias"/>
    <interceptor-ref name="defaultStack"/>
    <result>result.jsp</result>
</action>