In my attempt to push content into portlet#B from portlet#A I have tried to use
the session by following the suggestions given at
http://allu.wordpress.com/category/portlets/
Here is my code in the render method of HelloWorld portlet
public void render(javax.portlet.RenderRequest request,
javax.portlet.RenderResponse response) {
response.setContentType("text/html");
PrintWriter writer=null;
try{
writer=response.getWriter();
response.getWriter().println("Helloy2z Portlet" + writer);
} catch (Exception e) {};
request.getPortletSession().setAttribute("writer", writer,
PortletSession.APPLICATION_SCOPE);
request.getPortletSession().setAttribute("hello", "there234",
PortletSession.APPLICATION_SCOPE);
PortletContext context = getPortletConfig().getPortletContext();
context.setAttribute("hello2", "amen");
}
Here is the code in the processAction method of Portlet#B
PortletContext context = getPortletConfig().getPortletContext();
String a=(String) context.getAttribute("hello2");
PrintWriter pw=(PrintWriter)request.getPortletSession().getAttribute("writer",
PortletSession.APPLICATION_SCOPE);
String h = (String) request.getPortletSession().getAttribute("hello",
PortletSession.APPLICATION_SCOPE);
All a, h and pw are coming out as null.
What am I doing wrong here?
Thanks
Murthy
-----Original Message-----
From: Murthy Gandikota
Sent: Wednesday, October 17, 2007 2:28 PM
To: Murthy Gandikota; '[email protected]'
Subject: RE: Pluto 1.1.4 - java.lang.InstantiationException while deploying
I have learnt my lesson with HTML frames. They are only support by IE. Frames
suck!
So this got me to thinking, how can I click on some link in Portal#1 and change
the appearance of Portal#2? So far I have no answers. Can someone show me a
hello world example, where clicking a helloworld link on Portal#1 displays the
text hello world in Portal#2?
Thanks for your help
Murthy
-----Original Message-----
From: Murthy Gandikota
Sent: Thursday, September 06, 2007 9:26 AM
To: [email protected]
Subject: RE: Pluto 1.1.4 - java.lang.InstantiationException while deploying
I could make my helloworld work after adding the page in the admin screen.
Wonder why no one mentioned that :-)
What is the difference between frames and containers? It seems whatever
is displayed on the Pluto portal can be done with frames. Am I missing
something? Can we layer containers one top of another?
Coming from a Tomcat 5.5.3 and JSP/Servlet background, Pluto 1.1.4 is
much better. So please don't get me wrong.
I'd appreciate if someone could answer my questions.
Thanks
Murthy
-----Original Message-----
From: Murthy Gandikota [mailto:[EMAIL PROTECTED]
Sent: Tuesday, September 04, 2007 8:05 PM
To: [email protected]
Subject: RE: Pluto 1.1.4 - java.lang.InstantiationException while deploying
I followed the steps indicated by
a) http://www.ociweb.com/jnb/jnbAug2006.html
b) http://portals.apache.org/pluto/v11/deploying.html
Successfully created the war file with maven and deployed without errors
I still see the exception given below.
The URL given in (a) uses JetSpeed2. Do I need that too?
Thanks
Murthy
-----Original Message-----
From: Murthy Gandikota [mailto:[EMAIL PROTECTED]
Sent: Tuesday, September 04, 2007 6:22 PM
To: [email protected]
Subject: RE: Pluto 1.1.4 - java.lang.InstantiationException while deploying
Ben Wrote:
>Probably the problem that you are having is related to:
>> <servlet-class>javax.portlet.GenericPortlet
>> </servlet-class>
>This is in an incorrect way to map the servlet. This class should be
>org.apache.pluto.core.PortletServlet.
With the change done as suggested above the error now is:
SEVERE: Servlet.service() for servlet HelloWorld threw exception
java.lang.NullPointerException
at
org.apache.pluto.core.PortletServlet.dispatch(PortletServlet.java:196)
at org.apache.pluto.core.PortletServlet.doGet(PortletServlet.java:145)
I think the exception in the dispatch is because the following session
variables are not set:
javax.portlet.response
javax.portlet.request
org.apache.pluto.core.method
The relevant code from PortletServlet.java
// Retrieve attributes from the servlet request.
Integer methodId = (Integer) request.getAttribute(
Constants.METHOD_ID);
portletRequest = (InternalPortletRequest) request.getAttribute(
Constants.PORTLET_REQUEST);
portletResponse = (InternalPortletResponse) request.getAttribute(
Constants.PORTLET_RESPONSE);
I'd appreciate some more help. May be someone can post the web.xml that works!
Thanks
Murthy
