Pass Parameter to second.jsp using "form & action"

Question

I wrote a JSP Portlet. Like the sample, multipage. But, I need to use <form> to pass the parameter to second.jsp
The first.jsp include:
<form name="parameters" method="POST" action="<%= HttpPortletRendererUtil.htmlFormActionLink(request,PortletRendererUtil.PAGE_LINK) + "?" + HttpPortletRendererUtil.portletParameter(request, "next_page") + "=second.jsp" %>" >
The provider.xml include:
<pageParameterName>next_page</pageParameterName>
But, error occur and show as following:
Wed, 21 Mar 2001 10:20:02 GMT
No DAD configuration Found
DAD name:
PROCEDURE : !null.wwpob_page.show
URL : http://oraas2:80/pls/null/!null.wwpob_page.show?_pageid=null
PARAMETERS :
===========
ENVIRONMENT:
============
Do I have to do something with next_page or pageID?
I have run the first.jsp in the sample that JPDK provided. After each click, the screen will refresh.
null

Answer 1

Leo,
The error you are getting is actually a portal error, you have an incorrect URL.
http://oraas2:80/pls/null/!null.wwpob_page.show?_pageid=null
If you notice, after pls, you should have a DAD name such as portal30. Instead you have null. Take a look at your Database access descriptors in Portal and update your URL.
Sue