title: Mapping an struts2 action based on querystring, rather than path name
body: <p>Is there a way to configure struts 2, so that the dispatcher will use the querystring to map the action to invoke?</p>
  
  <p>For example, in the link below, I would like to invoke action blah, not action foo.</p>
  
  <p><a href="http://domain:port/myapp/foo.do?someparameter=blah" rel="nofollow">http://domain:port/myapp/foo.do?someparameter=blah</a></p>
  
  <p>Thanks.</p>