Liferay Portlet Struts action path hook error

Question

I am trying to override "/blogs/view_entry" struts path. Following is the entry in liferay-hook.xml

<struts-action>
        <struts-action-path>/blogs/view_entry</struts-action-path>
        <struts-action-impl>com.smb.hook.action.BlogCustomEditAction</struts-action-impl>
</struts-action>

Whenever I click on any blog entry in Blogs portlet, It redirects to

http://localhost:8080/web/guest/home/-/blogs/test-blog-for-testing?_33_redirect=http%3A%2F%2Flocalhost%3A8080%2Fweb%2Fguest%2Fhome%3Fp_p_id%3D33%26p_p_lifecycle%3D0%26p_p_state%3Dnormal%26p_p_mode%3Dview%26p_p_col_id%3Dcolumn-2%26p_p_col_count%3D2

and blogs portlet becomes invisible.

At console, I can see the test print statement added in render method. After that following error message is logged:

ERROR [RuntimePageImpl-22][PortletRequestProcessor:466] Forward does not exist

Following are the methods overridden:

@Override
    public void processAction(StrutsPortletAction originalStrutsPortletAction,
            PortletConfig portletConfig, ActionRequest actionRequest,
            ActionResponse actionResponse) throws Exception {
        System.out.println("processAction :");
        super.processAction(originalStrutsPortletAction, portletConfig, actionRequest,
                actionResponse);
    }

    @Override
    public String render(StrutsPortletAction originalStrutsPortletAction,
            PortletConfig portletConfig, RenderRequest renderRequest,
            RenderResponse renderResponse) throws Exception {
        System.out.println("render :");
        return super.render(originalStrutsPortletAction, portletConfig, renderRequest,
                renderResponse);
    }

    @Override
    public void serveResource(StrutsPortletAction originalStrutsPortletAction,
            PortletConfig portletConfig, ResourceRequest resourceRequest,
            ResourceResponse resourceResponse) throws Exception {
        System.out.println("serveResource :");
        super.serveResource(originalStrutsPortletAction, portletConfig,
                resourceRequest, resourceResponse);
    }

I have tried passing null for originalStrutsPortletAction as shown in one of the example on liferay dev site but no change in output.

Any help on this is appreciated.

Tobias Liefke Tobias Liefke · Accepted Answer · 2015-08-31T13:39:55

I guess that you extend BaseStrutsPortletAction (not stated in your snippet).

The default methods of BaseStrutsPortletAction do not delegate to originalStrutsPortletAction - but they delegate to the methods of your class without the originalStrutsPortletAction, which are empty in default.

So you have to call originalStrutsPortletAction by yourself:

@Override
public void processAction(StrutsPortletAction originalStrutsPortletAction,
        PortletConfig portletConfig, ActionRequest actionRequest,
        ActionResponse actionResponse) throws Exception {
    originalStrutsPortletAction.processAction(portletConfig, actionRequest, actionResponse);
}

@Override
public String render(StrutsPortletAction originalStrutsPortletAction,
        PortletConfig portletConfig, RenderRequest renderRequest,
        RenderResponse renderResponse) throws Exception {
    return originalStrutsPortletAction.render(portletConfig, renderRequest, renderResponse);
}

@Override
public void serveResource(StrutsPortletAction originalStrutsPortletAction,
        PortletConfig portletConfig, ResourceRequest resourceRequest,
        ResourceResponse resourceResponse) throws Exception {
    originalStrutsPortletAction.serveResource(portletConfig, resourceRequest, resourceResponse);
}

Liferay Portlet Struts action path hook error

1 Answers