Servlet Portlet

Hello,
I installed JPDK, worked fine. Tried a few samples from JPDK on my page, worked fine. I created a subfolder called french under providers (actually a copy of "sample" directory). Copied my servlet and JavaWebService (a regular java class) to classes directory
Heres is my servlet
import javax.servlet.*;
import javax.servlet.http.*;
import java.io.*;
import java.util.*;
public class TranslationServlet extends HttpServlet
private static final String CONTENT_TYPE = "text/html; charset=windows-1252";
public void init(ServletConfig config) throws ServletException
super.init(config);
public void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException
String var0 = new String("");
try
var0 = request.getParameter("strEnglish");
catch(Exception e)
var0 = "";
e.printStackTrace();
response.setContentType(CONTENT_TYPE);
PrintWriter out = response.getWriter();
out.println("<html>");
out.println("<head><title>TranslationServlet</title></head>");
out.println("<body bgcolor='#bdc6de'>");
out.println("<form name='frmInput' method='POST' action='TranslationServlet'>");
out.println("<input type='text' name='strEnglish' value=''>");
out.println("<input type='submit' name='btnSubmit' value='Translate'>");
out.println("</form>");
out.println("</body></html>");
public void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException
String var0 = new String("");
try
var0 = request.getParameter("strEnglish");
catch(Exception e)
var0 = "";
e.printStackTrace();
if(!var0.equals(""))
JavaWebService jws = new JavaWebService();
var0 = jws.convertEnglishToFrench(var0);
response.setContentType(CONTENT_TYPE);
PrintWriter out = response.getWriter();
out.println("<html>");
out.println("<head><title>TranslationServlet</title></head>");
out.println("<body bgcolor='#bdc6de'>");
out.println("<p>" + var0 + "</p>");
out.println("</body></html>");
Here is my provider.xml
<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
<?providerDefinition version="3.1"?>
<provider class="oracle.portal.provider.v2.DefaultProviderDefinition">
<session>true</session>
<useOldStyleHeaders>false</useOldStyleHeaders>
<portlet class="oracle.portal.provider.v2.DefaultPortletDefinition">
<id>1800</id>
<name>FrenchServlet</name>
<title>English to French translation Servlet</title>
<shortTitle>French Servlet</shortTitle>
<description>This is the "hello world" sample implemented using Java Servlets and the extensible renderer architecture.</description>
<timeout>40</timeout>
<timeoutMessage>French Servlet timed out</timeoutMessage>
<hasHelp>false</hasHelp>
<hasAbout>false</hasAbout>
<showPreview>false</showPreview>
<showDetails>false</showDetails>
<showEdit>false</showEdit>
<showEditDefault>false</showEditDefault>
<acceptContentType>text/html</acceptContentType>
<renderer class="oracle.portal.provider.v2.render.RenderManager">
<contentType>text/html</contentType>
<autoRedirect>true</autoRedirect>
<showPage>/servlet/TranslationServlet</showPage>
</renderer>
</portlet>
</provider>
The provider registers properly with portal, but when I try to use the portlet i get "Internal server error, listener returned...."
Am I doing something wrong?
Please help...

Hi Akshay,
Just a few concerns here,
1. Please check if you have made an entry in the web.xml file at %OC4J_HOME%/jpdk/jpdk/WEB-INF/ for TranslationServlet. Here i am assuming that your servlet code & provider.xml are inside the jpdk context path (i.e. inside %OC4J_HOME%/jpdk/jpdk folders)
A sample entry can be like,
<servlet>
<servlet-name>TranslationServlet</servlet-name>
<display-name>TranslationServlet</display-name>
<servlet-class>yourfullpackagestructre.TranslationServlet</servlet-class>
</servlet>
<servlet-mapping>
<servlet-name>TranslationServlet</servlet-name>
<url-pattern>/servlet/TranslationServlet</url-pattern>
</servlet-mapping>
This will enable the servlet container to redirect all your requests to TranslationServlet.
2. I doubt if the following code extract will work,
out.println("<form name='frmInput' method='POST' action='TranslationServlet'>");
Here the action is to be taken by TranslationServlet, but you need to specify the complete URL for the TranslationServlet which might be something like
http://your OC4J host:port/servlet/TranslationServlet
You can generate this URL at runtime as follows,
String requestURL = request.getRequestURL().toString();
String requestURI = request.getRequestURI();
// "http://<host>:<port>
String baseURL = requestURL.substring(0, requestURL.indexOf(requestURI));
String completeURL = baseURL + "/servlet/TranslationServlet"
Put the completeURL in the action attribute of the form.
Hope this helps, let me know if it still doesn't work.
Regards,
Abhinav

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Thanx,
But how do I do that???
Ive got the following servlet that functions as a controller. How do I recode it to work with jserv and pdk V2/1 or can u point me to some portal/servlet related examples?
And then especially the get/setAttribute and dispatch functions.
package com.nl.vertis.pd.controller;
import javax.servlet.*;
import javax.servlet.http.*;
import java.io.PrintWriter;
import java.io.IOException;
import java.util.Map;
import java.util.Set;
import java.util.Iterator;
import java.util.Enumeration;
import java.util.Vector;
import oracle.portal.provider.v1.*;
import oracle.portal.provider.v1.http.*;
import com.nl.vertis.util.GenericConfigObject;
import com.nl.vertis.pd.data.*;
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import com.vertis.util.log.*;
import com.vertis.util.log.handler.*;
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