1 Reply Latest reply on Jun 4, 2008 11:33 AM by peterj

invoque a Servlet into a portlet

khadijbal Jun 4, 2008 7:35 AM

I want to use a servlet for the downalding of a file PDF, I tried to call it since my portlet with the following code ( in doView() method ):

public void doView(RenderRequest req, RenderResponse rep)
{
rep.setContentType("text/html");
String titre = (String) req.getParameter("titreformation");
if (title !=null)
{
HttpServletRequest request = null;
HttpServletResponse reponse = null;
request.setAttribute("title", title);
 try {
 RequestDispatcher d = (RequestDispatcher) getPortletContext().getRequestDispatcher(
 "/MyServlet");
 d.include(request, reponse);
 } catch (ServletException se) {
 System.out.print se);
 }

}

but i have the following error:

Cause: java.lang.ClassCastException: org.jboss.portal.portlet.impl.jsr168.api.PortletRequestDispatcherImpl
Message: org.jboss.portal.portlet.impl.jsr168.api.PortletRequestDispatcherImpl
StackTrace:
java.lang.ClassCastException: org.jboss.portal.portlet.impl.jsr168.api.PortletRequestDispatcherImpl
 at portal.portlets.PListeFormation.doView(Unknown Source)
 at javax.portlet.GenericPortlet.doDispatch(GenericPortlet.java:133)
 at javax.portlet.GenericPortlet.render(GenericPortlet.java:306)
 at org.jboss.portal.portlet.impl.jsr168.PortletContainerImpl.invokeRender(PortletContainerImpl.java:483)

Someone can help me please

1. Re: invoque a Servlet into a portlet

peterj Jun 4, 2008 11:33 AM (in response to khadijbal)

Redirecting from a portlet to a servlet is not going to work. That is not what Shazzam meant when he (she?) answered your request at http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4155726.

Instead, you should set up the link that your portlet displays (the one that the user clicks to get the PDF) to go directly to the servlet, bypassing the portal entirely. The servlet can then reply with the PDF.
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