How to modified a URL showed in a Render phase from the Action phase.

Question

Hi all,
I have a problem with a URL showed when I pass from action phase to render phase. Next I explain that problem.
I'm using a Weblogic Portal 10.3., Java Portlet and Spring. My portlet contains two controllers (A and B). The controller A receive an action and depending of a parameter, shows a viewA (which is managed by A controller) or viewB (managed by B controller). To do that I use a ParameterHandlerMapping of SpringFramework, which if an action parameter is A, the portlet use Controller A and use controller B if an action parameter is B.
Next I show you a Controller A method which receive an action:
@ActionMapping(params={"action=A","execAction=redirection","pg"})
public void accionIrFichaDispositivo(ActionRequest req, ActionResponse resp,
@ModelAttribute("listadoVozForm") ListadoVozForm form,
@RequestParam("pg") String paramPg) throws PortletException, IOException{
if(pg.equals("Hola")){
}else{
resp.setRenderParameter("action", "B");
In a Render Phase, which is managed by Controller B, the URL contains the value of action parameter: action=A.
How can I modified that action parameter to show action=B?..
Regards..

Answer 1

Hello,
What you are seeing is the expected behavior; the URL in the browser will be the action URL (with action=A) even though the portlet is setting a render parameter action=B in the action phase. There's nothing "wrong" with this; the "B" controller will get run because the render parameter "action=B" exists, even though it isn't what is displayed in the browser. In general, it is best to not be concerned about what parameters are in the browser's URL, as the portal framework is managing all the parameters for you on the server-side.
If you really want the browser's displayed URL to not be the action URL, there is a feature built in to WLP 10.3.2 and later versions which will cause the browser to do a redirect to the render URL just after the action phase runs. This will make the browser display the "action=B" in the URL, but the redirect will also double the number of requests the server must handle, so consider if you really need the browser's URL to display the current render URL. To turn this feature on, modify the entry for your portlet in the WEB-INF/portlet.xml file to add a container runtime option "com.oracle.portlet.redirectAfterAction", like this:
    <portlet>
        <portlet-name>sampleRedirectAfterAction</portlet-name>
        <portlet-class>
            portlets.jsr286.SampleRedirectAfterAction
        </portlet-class>
        <supports>
            <mime-type>text/html</mime-type>
            <portlet-mode>view</portlet-mode>
        </supports>
        <portlet-info>
            <title>Redirect After Action Sample</title>
        </portlet-info>
        <container-runtime-option>
            <name>com.oracle.portlet.redirectAfterAction</name>
            <value>true</value>
        </container-runtime-option>
        <container-runtime-option>
            <name>com.oracle.portlet.suppressWsrpOptimisticRender</name>
            <value>true</value>
        </container-runtime-option>
    </portlet>The "suppressWsrpOptimisticRender" runtime option is recommended as a performance enhancement for any portlets being run over WSRP which also have the "redirectAfterAction" option, however, if you are running your portlets over WSRP you won't be seeing the render parameters in the browser's URL in any recognizable form anyway.
Kevin