PortletRequestDispatcher didn't work

[dzhang2k]

Hi,

I am running jboss-4.0.3RC2 on Linux, JDK 1.5.0_04. Just try to show the help info.
1) If I use PortletContext portletContext = getPortletContext(); I got null pointer exception, so I have to use session.getPortletContext();

2) I am expecting the doHelp() will show the helpPage.jsp content, but the page is blank, no error/exception, could anyone point it out the reason,pls?

thanks a lot
D

Here is the final code
protected void doHelp(RenderRequest req, RenderResponse resp)
throws PortletException, IOException
{
session = req.getPortletSession(true);
PortletContext portletContext = session.getPortletContext();
PortletRequestDispatcher prd = portletContext.getRequestDispatcher(resp.encodeURL(req.getContextPath())+"/jsp/helpPage.jsp");
try{
prd.include(req,resp);
}
catch(PortletException pex)
{
pex.printStackTrace();
}
catch(IOException iex)
{
iex.printStackTrace();
}

}

[bsmithjj]

1.) Make sure your portlet extends javax.portlet.GenericPortlet
2.) Try setting the response content type before dispatching
3.) you might want to get rid of the encodeURL call

I simply use

response.setContentType("text/html");
PortletRequestDispatcher dispatcher = this.getPortletContext().getRequestDispatcher("/jsp/helpPage.jsp");
dispatcher.include(request, response);

with no problems

Hope this helps.