In portlets, how to use a html form passing values to the another page?

Question

it is well known that in web developing , we have two methods to pass values to another page.<!--
1. passing values
2.<form action="nextPage" method ="post"></form>-->
but how to use two methods in oracle portal portlets?
I have got a simple example which submit two values to the page for itself, means a page has a form with submit botton, user input the form with values and then submit them by submit botton, then the page recevice those values and show it .
this example is powered by oracle ,
please have a look at these code:
<br><br>
<%@ page contentType="text/html;charset=UTF-8" %>
<%@page import="java.util.*, oracle.portal.provider.v2.*" %>
<%@page import="oracle.portal.provider.v2.http.HttpCommonConstants" %>
<%@page import="oracle.portal.provider.v2.render.PortletRendererUtil" %>
<%@page import="oracle.portal.provider.v2.render.PortletRenderRequest" %>
<%@page import="oracle.portal.provider.v2.render.http.HttpPortletRendererUtil" %>
<%@page import="oracle.portal.provider.v2.url.UrlUtils" %>
<%
// The form submit URL refers to the current Portal page. All portlets
// on this page share this URL. This means that the per portlet parameters
// are in the same request. Portlets must ensure that its paramerters don't
// collide either with other portlets or other instances of itself. This
// is generally accomplished by using "fully-qualified" parameter names. A
// fully-qualified parameter name prepends the (unique) portlet reference to
// the parameter. The JPDK provides a utility to accomplish this.
String portletParamName = "mName";
String portletParamAge = "mAge";
String portletParamSubmit = "mSubmit";
String fName = HttpPortletRendererUtil.portletParameter(request, portletParamName);
String fAge = HttpPortletRendererUtil.portletParameter(request, portletParamAge);
String fSubmit = HttpPortletRendererUtil.portletParameter(request, portletParamSubmit);
// These are the session attribute names used to store the current values.
// Because all instances of this portlet share the same user session we must
// also fully-qualify these names to avoid collisions.
String sName = HttpPortletRendererUtil.portletParameter(request, "sName");
String sAge = HttpPortletRendererUtil.portletParameter(request, "sAge");
PortletRenderRequest pRequest = (PortletRenderRequest)
request.getAttribute(HttpCommonConstants.PORTLET_RENDER_REQUEST);
String formName = UrlUtils.htmlFormName(pRequest,null);
ProviderUser user = pRequest.getUser();
ProviderSession providerSession = user.getSession();
if (providerSession == null)
%>
Your provider session has been terminated or has timed out
and you need to logout and then login to re-establish the session.
<%
else
// Record, in session storage, the last values submitted.
if (pRequest.getQualifiedParameter(portletParamSubmit) != null)
providerSession.setAttribute(sName, pRequest.getQualifiedParameter(portletParamName));
providerSession.setAttribute(sAge, pRequest.getQualifiedParameter(portletParamAge));
%>
<!-- Output the HTML content -->
<center>
<table width="70%">
<tr>
<td>
<b>This portlet shows how to post and process information from HTML forms.</b>
</td>
</tr>
</table>
<form name="<%= formName %>" method="POST"
action="<%= UrlUtils.htmlFormActionLink(pRequest,UrlUtils.PAGE_LINK) %>">
<%= UrlUtils.htmlFormHiddenFields(pRequest,UrlUtils.PAGE_LINK, formName) %>
<table>
<tr>
<td>
<b>Name :</b>
</td>
<td>
<input type="text" size="20" name="<%= fName %>" value="">
</td>
</tr>
<tr>
<td>
<b>Age : </b>
</td>
<td>
<input type="text" size="3" name="<%= fAge %>" value="">
</td>
</tr>
</table>
<br>
<INPUT TYPE=submit name="<%= fSubmit %>" Value="Submit">
</form>
<%
if ((providerSession.getAttribute(sName) == null)&& (providerSession.getAttribute(sAge) == null)) {
%>
<b>No values have been submitted yet.</b>
<%
} else {
%>
<b> Last submitted values:</b><br>
<table>
<tr>
<td>
<b>Name: </b>
</td>
<td>
<b><%= providerSession.getAttribute(sName) %></b>
</td>
</tr>
<tr>
<td>
<b>Age: </b>
</td>
<td>
<b><%= providerSession.getAttribute(sAge) %></b>
</td>
</tr>
</table>
<%
%>
</center>
<%
%>
<br><br>
<br><br>
<br><br>
but I want to write the form in a page , and then show it on another page , how to write it ?
I have read the pdk:
oracle.portal.provider.v2.url Classes
UrlUtils
then I use these method , as this :
//frist page:
<br><br><br><br>
<%@page contentType="text/html; charset=Big5"
import="oracle.portal.provider.v2.render.PortletRenderRequest"
import="oracle.portal.provider.v2.http.HttpCommonConstants"
%>
<%@ page import="oracle.portal.provider.v2.*"%>
<%@ page import="oracle.portal.provider.v2.render.PortletRendererUtil"%>
<%@ page import="oracle.portal.provider.v2.render.http.HttpPortletRendererUtil"%>
<%@ page import="oracle.portal.provider.v2.url.UrlUtils"%>
<%
PortletRenderRequest pReq = (PortletRenderRequest)
request.getAttribute(HttpCommonConstants.PORTLET_RENDER_REQUEST);
%>
<P>Hello <%= pReq.getUser().getName() %>.</P>
<P>This is the <b><i>Show</i></b> render mode!</P>
this is a program to test the passing value
<%
String portletParamName = "mName";
String portletParamAge = "mAge";
String portletParamSubmit = "mSubmit";
String fName = HttpPortletRendererUtil.portletParameter(request, portletParamName);
String fAge = HttpPortletRendererUtil.portletParameter(request, portletParamAge);
String fSubmit = HttpPortletRendererUtil.portletParameter(request, portletParamSubmit);
PortletRenderRequest pr=(PortletRenderRequest)request.getAttribute(HttpCommonConstants.PORTLET_RENDER_REQUEST);
String formName=UrlUtils.htmlFormName(pr, null);
%>
<form name="<%=formName%>" method="post" action="<%=UrlUtils.htmlFormActionLink("/htdocs/passingvalues4/getValues.jsp")%>">
<%= UrlUtils.htmlFormHiddenFields("/htdocs/passingvalues4/getValues.jsp") %>
name:<input type="text" size="20" name="<%= fName %>" value="">
p w :<input type="text" size="3" name="<%= fAge %>" value="">
<INPUT TYPE=submit name="<%= fSubmit %>" Value="Submit">
</form>
//getValues.jsp<br><br>
<br><br>
<%@page contentType="text/html; charset=Big5"
import="oracle.portal.provider.v2.render.PortletRenderRequest"
import="oracle.portal.provider.v2.http.HttpCommonConstants"
%>
<%@ page import="oracle.portal.provider.v2.*"%>
<%@ page import="oracle.portal.provider.v2.render.PortletRendererUtil"%>
<%@ page import="oracle.portal.provider.v2.render.http.HttpPortletRendererUtil"%>
<%@ page import="oracle.portal.provider.v2.url.UrlUtils"%>
<% String portletParamName = "mName";
String portletParamAge = "mAge";
String portletParamSubmit = "mSubmit";
String fName = HttpPortletRendererUtil.portletParameter(request, portletParamName);
String fAge = HttpPortletRendererUtil.portletParameter(request, portletParamAge);
String fSubmit = HttpPortletRendererUtil.portletParameter(request, portletParamSubmit);%>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=Big5">
<title>untitled</title>
</head>
<body>
Name:<%=fName%>
Age :<%=fAge%>
</body>
</html>
<br>then I deployed them on the portal , run it , the result is :after I submit it , the browser give me : http 404 page not found!
[b]here is the provider.xml<br>[b[i]]<?xml version = '1.0' encoding = 'UTF-8'?>
<?providerDefinition version="3.1"?>
<provider class="oracle.portal.provider.v2.DefaultProviderDefinition">
<session>true</session>
<passAllUrlParams>true</passAllUrlParams>
<portlet class="oracle.portal.provider.v2.DefaultPortletDefinition">
<id>1</id>
<name>PassingValues4</name>
<title>PassingValues4</title>
<description>PassingValues4</description>
<timeout>60</timeout>
<showEditToPublic>false</showEditToPublic>
<hasAbout>false</hasAbout>
<showEdit>false</showEdit>
<hasHelp>false</hasHelp>
<showEditDefault>false</showEditDefault>
<showDetails>false</showDetails>
<renderer class="oracle.portal.provider.v2.render.RenderManager">
<renderContainer>true</renderContainer>
<renderCustomize>true</renderCustomize>
<autoRedirect>true</autoRedirect>
<contentType>text/html</contentType>
<showPage>/htdocs/passingvalues4/PassingValues4InputPage.jsp</showPage>
<showPage>/htdocs/passingvalues4/getValues.jsp</showPage>
</renderer>
</portlet>
</provider>
<br><br><br>
<br><br>
would you kind enough to help me ? thanks!!!
Message was edited by:
moonsoft

Answer 1

Hi Moonsoft,
I have already answered this query in the other post at Re: how to link more than one links in portlet?(jsp develop)
<form name = "showPageForm" method = "POST" action = "<%= UrlUtils.htmlFormActionLink(pReq,UrlUtils.PAGE_LINK) %>">
  <%= UrlUtils.htmlFormHiddenFields(pReq,UrlUtils.PAGE_LINK, "showPageForm") %>
  <input type="text" name="param1">
  <input type="text" name="param2">
  <input type="hidden" name="myPPN" value="/htdocs/page2.jsp">
</form>then in your jsp code on page2.jsp, you will extract the parameters by specifying
<%
  String p1 = request.getParameter("param1");
  String p2 = request.getParameter("param2");
%>
>>this is easy common jsp or asp development, but in oracle is too diffcult!!!!
:-) .. there is a difference between web-applications and portlets, you just need to get used to it once. I hope this does clarify your doubts.
thanks,
Harsha