Send and process parameter before render view

[prinsinn]

Hi
I am looking for a way to send an parameter to portlet and process it before i show the view.
Something like
http://www.blabla.com/portlet?paramTest=testing

and then something like

protected Map referenceData(final PortletRequest request, final Object command, final Errors errors) throws Exception {

String test = request.getParameter("paramTest");

//do something before showing the view

but i always get null and cant seem to find a way to find the parame im sending.

Cheers
Prinsinn

[johnalewis]

It is tricky/impossible to hand-create URLs for Portlets. Most Portal platforms do a lot of mangling of get parameters destined for Portlets -- which is in line with the JSR-168 spec. In order to create a URL with a parameter for a portlet, you must do this within the Portlet itself. You can do this with the createActionURL and createRenderURL methods of the RenderResponse, or with the actionURL, renderURL, and param tags from the Portlet Tag Library for use in JSP pages.