Help with JSP Forward !!!

I have 3 pages ...1) index.jsp 2) Forward.jsp 3) welcome.jsp
I have 2 fields in the index.jsp once upon filling & hit submit it has to to go Forward.jsp page...in the Forward.jsp..i have coded only one tag with
<jsp:forward page="welcome.jsp" />
I have one question...once the page comes to Forward page...will it display the contents of the Welcome .jsp in the same page itself...or it will go to Welcome.jsp page..
As i saw it will display the contents of Welcome.jsp page in itself...
Please let me know...
Regards
Gnanesh

I understand your question only because I have a set up totally identical to yours. The thread Matt suggested does explain the situation (i.e. the server passed control to another page but the client doesn't know that), but doesn't necessarily give a good solution a problem that you may have, and that I do have:
If the user sees the welcome page, and for some reason decides to "reload", the forward page is re-executed, even though it has done its job. This could be a problem for session management if you specifically don't want that job being done twice in a session. Now you could hack around that, but I'd really rather see a neat solution. Is there one?

Similar Messages

Need code help in jsp:forward ... /

Can any one give a little code as to how am i suppose to redirect my jsp execution with <jsp:forward../> tag.
Give a little code of JSP file. i have tried with 2-3 examples but i could not do it. Certainly some wizard will help me doing this.
Thanx in advance.
husami

its fine. i have understood your code. i have even tested with param attribute.
Earlier i was using JWS2.0 now i have shifted to tomcat. it gives me problem to run jsp file. what could be the reason? servlets are running fine.
is there any path or classpath setting probs
or do i have to execute some other files of tomcat
or do i have to use jspc with some options?.......
please help
husami

URGENT help with JSP

Any help with this will be really appreciated. I'm new to programming.
If I search for an ssn in a database, I want to view all records relating to that ssn. However, I am getting all the records in the table.
eg.
at the prompt for ssn, let's say I enter 111111111
I would like to see
111111111 abc xyz etc
111111111 pdg ppp etc
however, I am getting
000000000 utt tui etc
111111111 tug etg etc
How do I make limit the search to the ssn I want?
The related code is below.
Thanks.
Java Code
public void doGet(HttpServletRequest request,
HttpServletResponse response)
throws ServletException, IOException {
if (checkLoginSessionPresent(request, response)) {
loadTable("/esoladm/TaxView.jsp", request, response);
else {
checkLoginSessionRedirect("/esoladm/ESOLAdminMain.jsp", request, response);
JSP Code
<% while (MyTaxSuppress != null) { %>
<% String sPlanCode = MyTaxSuppress.getPlanCode(); %>
<% String sSSN = MyTaxSuppress.getSSN(); %>
<% String sTaxYear = MyTaxSuppress.getTaxYear(); %>
<% String sDistCode = MyTaxSuppress.getDistCode(); %>
<% double sGrAmount = MyTaxSuppress.getGrAmount(); %>
<% String sStmtType = MyTaxSuppress.getStmtType(); %>
<% boolean bNewSuppress = MyTaxSuppress.getNewSuppress(); %>
<% String rowID = sPlanCode; %>
<% rowID += sSSN; %>
<% rowID += sTaxYear; %>
<% rowID += sDistCode; %>
<% rowID += sStmtType; %>
<% rowID += sGrAmount; %>
<% System.out.println( "Do While lp exiti" + rowID);%
<% if (bNewSuppress) { %>
<% out.println( "<TD> %>
<% <img BORDER='0' SRC='/esoladm/ESOLNew2.gif' %>
<% ALT='' WIDTH='50' HEIGHT='20'> </TD >"); %>
<% } else { %>
<% out.println( "<TD></TD>"); %>
<% } %>
<TD><%= sPlanCode %></TD>
<TD><%= sSSN %></TD>
<TD><%= sTaxYear %></TD>
<TD><%= sDistCode %></TD>
<TD><%= sGrAmount %></TD>
<TD><%= sStmyType %></TD>
<TD><input TYPE="checkbox" name="<%=rowID %>" ></TD>
<% MyTaxSuppress = MySuppressTaxList.getNext(); %>
<% } // end of while loop %>

I don't see anywhere in your code where you conditionally output a tuple from your database. You seem to be outputting everything.
Maybe you need:
<% if (sSSN==input_value){ %>
<TD><input TYPE="checkbox" name="<%=rowID %>" ></TD>
<% } %>

Help with port forwarding to application

Help needed to Port Forward on to my PS3.
I need to forward the following ports:
UDP: 3074; 3659; 6000
TCP: 80; 443; 3659; 10000 - 10099; 42127
Have previously given the PS3 a static IP, set the port forwarding rules and then forwarded to the IP address, but it appears the ports have not opened as expected.
Help Keith

I can only see one image which just shows the application mapping, but no indication as to whether you had clicked the "apply" button.
Why are you forwarding ports 80 and 443, are you running a webserver on the PS3, as those ports are used for web serving.
As a matter of interest, your port 80 is showing as open at the moment, so is the PS3 turned on, or is port 80 mapped to something else instead?
What I would like you to do is to start from the beginning, with just the single TCP port number 3659 assigned to the PS3.
It will mean removing the other assignments, but it will make things a bit easier.
If you could do that please, and then we can do some tests.
There are some useful help pages here, for BT Broadband customers only, on my personal website.
BT Broadband customers - help with broadband, WiFi, networking, e-mail and phones.

Weird behaviour with jsp:forward and jsp:param

I'm running Orion 1.5.3
Wanted to ask if anyone has insight into the following.
I'm trying to do a forward with a parameter. The parameter is something like a message string.
The following does not work.
<%
String result = "unsucessful"; // retrieved from external source... hardcoded for example's sake
%>
<jsp:forward page="<%=nextPage%>">
<jsp:param name="message" value="The result was <%=result%>"/>
</jsp:forward>
I've managed to deduce that the error is in the param value. Apparently, we cannot mix variables with static values inside the value parameter.
I've managed to get it working by doing this...
<%
String result = "unsucessful"; // retrieved from external source... hardcoded for example's sake
String message = "The result was " + result;
%>
<jsp:forward page="<%=nextPage%>">
<jsp:param name="message" value="<%=message%>"/>
</jsp:forward>
My question is, is this a bug or is it supposed to be this way ? Can we mix the value parameters ?

Hi Bernard,
Take a note of the following syntax -
<jsp:forward page={"relativeURL" | "<%= expression %>"} >
<jsp:param name="parameterName"
value="{parameterValue | <%= expression %>}" />+
</jsp:forward>
It is evident that either the value attribute can have an expression or simple text.
I have tried your example and I am also encountering the same kind of problem, but I have found a way out.
You can try the following in your code -
<%
String result = "unsucessful"; // retrieved from external source... hardcoded for example's sake
%>
<jsp:forward page="<%=nextPage%>">
<jsp:param name="message" value=' <%= "The result was" + result%>'/>
</jsp:forward>
Instead of using
value= "The result was <%=result%>" you can use
value= '<%= "The result was" + result%>'.
Hope this helps

Help with JSP and logic:iterate

I have some queries hope someone can help me.
I have a jsp page call request.jsp:
====================================
<%@ page import="java.util.*" %>
<%@ taglib uri="/WEB-INF/struts-bean.tld" prefix="bean" %>
<%@ taglib uri="/WEB-INF/struts-logic.tld" prefix="logic" %>
<html>
<body>
   <%@ page import="RequestData" %>
   <jsp:useBean id="RD" class="RequestData" />
   <%Iterator data = (Iterator)request.getAttribute("Data");%>
   <logic:iterate id="element" name="RD" collection="<%=data%>">
      <jsp:getProperty name="RD" property="requestID" />
      <%=element%><br>
   </logic:iterate>
</body>
</html>
And I have the RequestData.java file:
======================================
private int requestID = 1234;
public int getRequestID() { return requestID; }
The jsp page display:
======================
0 RequestData@590510
0 RequestData@5b6d00
0 RequestData@514f7f
0 RequestData@3a5a9c
0 RequestData@12d7ae
0 RequestData@e1666
Seems like the requestID is not returned. Does anybody know this?
I have done the exact one using JSP and servlets, trying to learn using JSP and custom tags. The one with JSP and servlet looks like:
============================================
<%@ page import="RequestData" %>
<%Iterator data = (Iterator)request.getAttribute("Data");
while (data.hasNext()) {
   RequestData RD = (RequestData)data.next();
   out.println(RD.getRequestID() );
}%>

Oh think I got it...
but one thing I'm not sure is...
If I use "<jsp:useBean id="RD" class="RequestData" />", do I still need "<%@ page import="RequestData" %>"?
I tried without and it gives me error...

Help with jsp beans

Hi ,
I'm new to beans .Please help me on this. I have 2 jsp pages -trial.jsp and trial2.jsp and a bean class-UserInfo.java
I'm setting the bean values from trial.jsp and trying to retrieve from trial2.jsp. But the values are coming as null. Can you please help me on this.
Code of Trial.jsp
<html>
<body>
<form name="beanTest" method="get" action="trial2.jsp">
<table width="60%">
<tr>
    <td width="44%">Name</td>
    <td width="56%"><label>
      <input type="text" name="name" id="name">
    </label></td>
</tr>
<tr>
    <td>Age</td>
    <td><input type="text" name="age" id="age"></td>
</tr>
<tr>
    <td>Occupation</td>
    <td><input type="text" name="occupation" id="occupation"></td>
</tr>
<tr>
    <td><label>
    <jsp:useBean id="person" class="javaUtil.UserInfo" scope="request"/>
<jsp:setProperty property="*" name="person"/>
<input type="submit" value="Test the Bean">
</form>
</body>
</html>
Trial2.jsp
<form>
<jsp:useBean id="person" class="javaUtil.UserInfo" scope="request"/>
Name<jsp:getProperty property="name" name="person"/><br>
age:<jsp:getProperty property="age" name="person"/><br>
job:<jsp:getProperty property="occupation" name="person"/><br>
</form>
UserInfo.java
package javaUtil;
import java.io.Serializable;
public class UserInfo implements Serializable{
     private static final long serialVersionUID = 1L;
     private String name;
     private int age;
     private String occupation;
     public String getName()
          return this.name;
     public void setName(String name)
          this.name=name;
     public int getAge()
          return this.age;
     public void setAge(int age)
          this.age=age;
     public String getOccupation()
          return this.occupation;
     public void setOccupation(String occupation)
          this.occupation=occupation;
Please help me.....

Actually you're probably off on a false trail with jsp:useBean. The more up to date methods use tag libraries (typically JSTL) and access bean attributes using EL, bean expression language. E.g. you put your initial form data into a request attribute called "data" and you put:
<input type="text" name="property1" value="${data.property1}" ....useBean is no use for binding returned fields from a form. Always remember that your JSP generates HTML and once that HTML is sent to the browser that's it, the JSP has done it's job and finished. Only with JSF, at present, does what you write in your JSP affect the processing of received form data. When you get the form data back you need to "bind" the values from the request back to the bean. A framework like Spring will do this stuff for you, but in a raw Servlet/JSP environment it's up to you.

Help with JSP/Weblogic/Tomcat Discrepencies

Hi,
          I have something very strange happening. I recently did some JSP stuff on
          WLS60SP1 and all went quite well. I then took those same JSP pages and tried
          them out on the latest release of TOMCAT. I was really impressed that
          everything seemed to be completely transparent and working just fine until
          the following situation:
          When I reference, within a JSP page, an object that has previously been
          added to the request scope that has just been created, but not messed with
          in anyway...meaning all the attributes in this bean have their default
          values set...and they are all Strings with the exception of one Integer
          using this format:
          <%= custVal.getCustomerNumber() %>
          - In WLS, what shows in the text field on the form is nothing, because
          customer number in the custVal object is null (default for a String)..this
          is what I want.
          - In Tomcat, what shows it the word "null".
          ...here is the weird part, by changing from scriptlet references to the
          <jsp:getProperty....> format such as....
          <jsp:getProperty name="custVal" property="customerNumber"/>
          -In WLS, he is still a happy camper and works just fine regardless of how I
          reference the bean
          -In Tomcat, I also get the correct results that I want.
          So, unlike most postings, I found out how to fix it but I would like to know
          why...any ideas?
          Thanks in advance,
          Paul Reed
          www.jacksonreed.com
          object training and mentoring
          Jackson-Reed, Inc. 888-598-8615
          www.jacksonreed.com
          Author of "Developing Applications with Visual Basic and UML"
          http://www.amazon.com/exec/obidos/ASIN/0201615797/jackreedinc/104-0083168-31
          95939
          Author of "Developing Applications with Java


          Try http://localhost:7001/HelloWorld.jsp
          "b. patel" <[email protected]> wrote:
          >
          >I need help with running a simple JSP. I created a WLS domain using the
          >WebLogic
          >Configuration Wizard. I am trying to access HelloWorld.jsp which is
          >located under
          >C:\bea\user_projects\wlsdomainex\applications\DefaultWebApp.
          >I type
          >http://localhost:7001/DefaultWebApp/HelloWorld.jsp. I get 404 - Page
          >Not Found
          >Error. The weblogic server starts Succesfully. I am trying this in Win
          >2K environment.
          >
          >I am new to WebLogic. Thanks for your Help in advance.
          >

Urgent help with Port Forwarding?

Hi all!
I hope my posting in the right section.
Basically I have a DVR in my home. I want to be able to view the 1 camera that I have externally (from a different home)
I have managed to be able to view the camera internally on my network (the dvr is plugged into the BT HUB 3)
I did this by Advanced Settings>Port Forwarding>Supported Apps>
I was told by the Manifacturer of the DVR that the ports i needed to forward are 8234 to 8239
Does this look correct to you guys?
The DVR i have a is a Digital Sprite 2 PLUS. Ive turned the firewall off on the router settings as I thought that could be the problem. I can view the dvr internally as I said above using the DVR i.p 192.168.1.69 perfectly, but when I type in my external i.p via my other home it wont connect at all.
Could anybody help me as to what im doing wrong?
Thanks for any replys !
James.

You are replying to an old posting.
The information on this link may help you.
Port forwarding problems
There are some useful help pages here, for BT Broadband customers only, on my personal website.
BT Broadband customers - help with broadband, WiFi, networking, e-mail and phones.

Filter problem with jsp:forward

Greetings,
I was trying to implement compression filter in oc4j. Basically wrap a HttpResponseServletResponseWrapper using a GZipOutputStream for supported browsers. However whenever for eg: I have a.jsp which does jsp:forward page =b.jsp I can see in TCP monitor IllegalStateException response already committed. But I dont see any stack trace in server logs. The buffer size is 2048 and I am pretty sure it did not get filled up before the forward. I would appreciate if anybody has seen such behavior using wrapped response in OC4j(the same code works fine in tomcat and websphere). Also one thing I observed is that for every jsp:include the filter is being called (to handle this I create the wrapper if its not already there and maintain entry count into filter and decrement when I exit filter and finish gzip response when entry count become 0,which works fine). I believe that this is not a part of 2.3 spec.Even in 2.4 spec if the filter config in web.xml is not set to any value by default the filter is supposed to be in request scope. I really appreciate any pointers in resolving this

I am pasting the stack trace for broken pipe exception. Please let me know if anybody knows the resolution. Please let me know if there is any other way to enable compression of jsp in oc4j in 9 version. The same code works in Jboss/tomacat websphere ! Also from the stack trace we can see that filter is being called for each forward and its not as per 2.3 servlet specification. Even in 2.4 by default the filter is supposed to work at request level.
Also I have another question oc4j seems to be using hard coded value: if length is more than 100k or so it uses Transfer-Encoding chunked. Is there any clean way of disabling this behaviour for .js files? the reason is for some reason Internet explore does not cache the javascript files properly (sporadically ) when chunked response is used for javascript files.
4/26/06 4:58 PM: com.evermind.server.http.HttpIOException: Broken pipe
4/26/06 4:58 PM: at com.evermind.server.http.EvermindServletOutputStream.flush(EvermindServletOutputStream.java:286)
4/26/06 4:58 PM: at java.io.FilterOutputStream.flush(FilterOutputStream.java:121)
4/26/06 4:58 PM: at filters.gzip.GzipServletResponseStream.flush(GzipServletResponseStream.java:151)
4/26/06 4:58 PM: at filters.gzip.GZipServletResponseWrapper.flushBuffer(GZipServletResponseWrapper.java:127)
4/26/06 4:58 PM: at com.evermind.server.http.ServletRequestDispatcher.forward(ServletRequestDispatcher.java:244)
4/26/06 4:58 PM: at com.evermind.server.http.GetParametersRequestDispatcher.forward(GetParametersRequestDispatcher.java:189)
4/26/06 4:58 PM: at com.evermind.server.http.EvermindPageContext.forward(EvermindPageContext.java:199)
4/26/06 4:58 PM: at SecondPage.jspService(_SecondPage.java:83)
4/26/06 4:58 PM: at com.orionserver.http.OrionHttpJspPage.service(OrionHttpJspPage.java:56)
4/26/06 4:58 PM: at oracle.jsp.runtimev2.JspPageTable.service(JspPageTable.java:317)
4/26/06 4:58 PM: at oracle.jsp.runtimev2.JspServlet.internalService(JspServlet.java:465)
4/26/06 4:58 PM: at oracle.jsp.runtimev2.JspServlet.service(JspServlet.java:379)
4/26/06 4:58 PM: at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
4/26/06 4:58 PM: at com.evermind.server.http.ResourceFilterChain.doFilter(ResourceFilterChain.java:65)
4/26/06 4:58 PM: at filters.CookieFilter.processRequest(CookieFilter.java:522)
4/26/06 4:58 PM: at filters.CookieFilter.validateRequest(CookieFilter.java:127)
4/26/06 4:58 PM: at filters.CookieFilter.doFilter(CookieFilter.java:51)
4/26/06 4:58 PM: at com.evermind.server.http.EvermindFilterChain.doFilter(EvermindFilterChain.java:16)
4/26/06 4:58 PM: at filters.gzip.GZipFilter.doFilter(GZipFilter.java:176)
4/26/06 4:58 PM: at com.evermind.server.http.ServletRequestDispatcher.invoke(ServletRequestDispatcher.java:556)
4/26/06 4:58 PM: at com.evermind.server.http.ServletRequestDispatcher.forwardInternal(ServletRequestDispatcher.java:306)
4/26/06 4:58 PM: at com.evermind.server.http.ServletRequestDispatcher.forward(ServletRequestDispatcher.java:240)
4/26/06 4:58 PM: at com.evermind.server.http.GetParametersRequestDispatcher.forward(GetParametersRequestDispatcher.java:189)
4/26/06 4:58 PM: at com.evermind.server.http.EvermindPageContext.forward(EvermindPageContext.java:199)
4/26/06 4:58 PM: at FirstPage.jspService(_FirstPage.java:131)
4/26/06 4:58 PM: at com.orionserver.http.OrionHttpJspPage.service(OrionHttpJspPage.java:56)
4/26/06 4:58 PM: at oracle.jsp.runtimev2.JspPageTable.service(JspPageTable.java:317)
4/26/06 4:58 PM: at oracle.jsp.runtimev2.JspServlet.internalService(JspServlet.java:465)
4/26/06 4:58 PM: at oracle.jsp.runtimev2.JspServlet.service(JspServlet.java:379)
4/26/06 4:58 PM: at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
4/26/06 4:58 PM: at com.evermind.server.http.ResourceFilterChain.doFilter(ResourceFilterChain.java:65)
4/26/06 4:58 PM: at filters.CookieFilter.processRequest(CookieFilter.java:522)
4/26/06 4:58 PM: at filters.CookieFilter.validateRequest(CookieFilter.java:127)
4/26/06 4:58 PM: at filters.CookieFilter.doFilter(CookieFilter.java:51)
4/26/06 4:58 PM: at com.evermind.server.http.EvermindFilterChain.doFilter(EvermindFilterChain.java:16)
4/26/06 4:58 PM: at filters.gzip.GZipFilter.doFilter(GZipFilter.java:176)
4/26/06 4:58 PM: at com.evermind.server.http.ServletRequestDispatcher.invoke(ServletRequestDispatcher.java:556)
4/26/06 4:58 PM: at com.evermind.server.http.ServletRequestDispatcher.forwardInternal(ServletRequestDispatcher.java:306)
4/26/06 4:58 PM: at com.evermind.server.http.HttpRequestHandler.processRequest(HttpRequestHandler.java:767)
4/26/06 4:58 PM: at com.evermind.server.http.HttpRequestHandler.run(HttpRequestHandler.java:259)
4/26/06 4:58 PM: at com.evermind.server.http.HttpRequestHandler.run(HttpRequestHandler.java:106)
4/26/06 4:58 PM: at EDU.oswego.cs.dl.util.concurrent.PooledExecutor$Worker.run(PooledExecutor.java:803)
4/26/06 4:58 PM: at java.lang.Thread.run(Thread.java:479)

"&" character not being sent in parameter value string with jsp:forward

String _url =
          "controller.jsp?_page="+nextPage+"&amp_count="+sessionManager.getCounter();
          <jsp:forward page="<%= (String) pageMap.get(nextPage) %>">
          <jsp:param name="_url" value="<%= _url %>"/>
          </jsp:forward>
          Receiving page:
          <% String url = request.getParameter("url");
          application.log("\n\t[skybook:home]_url = " + _url);
          %>
          Log:
          [skybook:home]_url = controller.jsp?_page=home
          If I remove the "&" from _url, then the rest of the string will appear.
          Anyone ever seen this?
          Thanks!


I'm having a similar problem where I cannot even get the params to show up in the forwarded page.

Help with jsp page

I have a servlet which passes details to a jsp page, i am having trouble picking up what is passed in the jsp page can somebody help me with this?
this is the lines from the servlet which should pass the data:
request.setAttribute("notvalid", "whatShouldIputHere");
               RequestDispatcher dispatcher = getServletContext().getRequestDispatcher("/mypage.jsp");
               dispatcher.forward(request, response);          This is the jsp page i have tried to make:
<body>
     <jsp:usebean id="notvalid"
          class ="site.validator2"
          Scope="request"     />
     <h1>message: </h1>
     <jsp:getProperty name="notvalid" property="notvalid" />
</body>
</html>

The fundamental problem is that the OP is asking questions about Servlet and JSP development without fully understanding the basics of containers and the rendezvous method of data sharing, life-cycle, data scope, and the like.
It is better that (s)he read up on the basics.

Need help with JSP - Session Bean scenario

I have massive problems with a simple JSP <--> Statefull Session Bean scenario with Server Platform Edition 8.2 (build b06-fcs)
What I do is generating a Collection in session bean returning it to JSP
and giving the List back to Session Bean.
A weird exception happens when giving the List back to Session Bean
(see Exception details below)
The same code runs without any trouble on Jboss Application Server 4.0.3
Any help would be great!
Please see code below
Statefull Session Bean
<code>
package ejb;
import data.Produkt;
import java.util.ArrayList;
import java.util.Collection;
import java.util.Iterator;
import javax.ejb.*;
* This is the bean class for the WarenkorbBean enterprise bean.
* Created 17.03.2006 09:53:25
* @author Administrator
public class WarenkorbBean implements SessionBean, WarenkorbRemoteBusiness, WarenkorbLocalBusiness {
private SessionContext context;
// <editor-fold defaultstate="collapsed" desc="EJB infrastructure methods. Click the + sign on the left to edit the code.">
// TODO Add code to acquire and use other enterprise resources (DataSource, JMS, enterprise bean, Web services)
// TODO Add business methods or web service operations
* @see javax.ejb.SessionBean#setSessionContext(javax.ejb.SessionContext)
public void setSessionContext(SessionContext aContext) {
context = aContext;
* @see javax.ejb.SessionBean#ejbActivate()
public void ejbActivate() {
* @see javax.ejb.SessionBean#ejbPassivate()
public void ejbPassivate() {
* @see javax.ejb.SessionBean#ejbRemove()
public void ejbRemove() {
// </editor-fold>
* See section 7.10.3 of the EJB 2.0 specification
* See section 7.11.3 of the EJB 2.1 specification
public void ejbCreate() {
// TODO implement ejbCreate if necessary, acquire resources
// This method has access to the JNDI context so resource aquisition
// spanning all methods can be performed here such as home interfaces
// and data sources.
// Add business logic below. (Right-click in editor and choose
// "EJB Methods > Add Business Method" or "Web Service > Add Operation")
public Collection erzeugeWarenkorb() {
//TODO implement erzeugeWarenkorb
ArrayList myList = new ArrayList();
for (int i=0;i<10;i++)
Produkt prod = new Produkt();
prod.setID(i);
prod.setName("Produkt"+i);
myList.add(prod);
return myList;
public void leseWarenkorb(Collection Liste) {
//TODO implement leseWarenkorb
Iterator listIt = Liste.iterator();
while(listIt.hasNext())
Produkt p = (Produkt)listIt.next();
System.out.println("Name des Produktes {0} "+p.getName());
</code>
<code>
package data;
import java.io.Serializable;
* @author Administrator
public class Produkt implements Serializable {
private int ID;
private String Name;
/** Creates a new instance of Produkt */
public Produkt() {
public int getID() {
return ID;
public void setID(int ID) {
this.ID = ID;
public String getName() {
return Name;
public void setName(String Name) {
this.Name = Name;
</code>
<code>
<%@page contentType="text/html"%>
<%@page pageEncoding="UTF-8"%>
<%@page import="java.util.*"%>
<%@page import="data.*"%>
<%@page import="javax.naming.*"%>
<%@page import="javax.rmi.PortableRemoteObject"%>
<%@page import="ejb.*"%>
<%--
The taglib directive below imports the JSTL library. If you uncomment it,
you must also add the JSTL library to the project. The Add Library... action
on Libraries node in Projects view can be used to add the JSTL 1.1 library.
--%>
<%--
<%@taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c"%>
--%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"
"http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>JSP Page</title>
</head>
<body>
<h1>Online Shop Warenkorb Test</h1>
<%--
This example uses JSTL, uncomment the taglib directive above.
To test, display the page like this: index.jsp?sayHello=true&name=Murphy
--%>
<%--
<c:if test="${param.sayHello}">

Hello ${param.name}!
</c:if>
--%>
<%
Context myEnv = null;
WarenkorbRemote wr = null;
// Context initialisation
try
myEnv = (Context)new javax.naming.InitialContext();
/*Hashtable env = new Hashtable();
env.put(Context.INITIAL_CONTEXT_FACTORY,"org.jnp.interfaces.NamingContextFactory");
//env.put(Context.PROVIDER_URL, "jnp://wotan.activenet.at:1099");
env.put(Context.PROVIDER_URL, "jnp://localhost:1099");
env.put(Context.URL_PKG_PREFIXES, "org.jboss.naming:org.jnp.interfaces");
myEnv = new InitialContext(env);*/
catch (Exception ex)
System.err.println("Fehler beim initialisieren des Context: " + ex.getMessage());
// now lets work
try
Object ref = myEnv.lookup("ejb/WarenkorbBean");
//Object ref = myEnv.lookup("WarenkorbBean");
WarenkorbRemoteHome warenkorbrhome = (WarenkorbRemoteHome)
PortableRemoteObject.narrow(ref, WarenkorbRemoteHome.class);
wr = warenkorbrhome.create();
ArrayList myList = (ArrayList)wr.erzeugeWarenkorb();
Iterator it = myList.iterator();
while(it.hasNext())
Produkt p = (Produkt)it.next();
%>
ProduktID: <%=p.getID()%><br></br>Produktbezeichnung:
<%=p.getName()%><br></br><%
wr.leseWarenkorb(myList);
catch(Exception ex)
%><p style="color:red">Onlineshop nicht erreichbar</p><%=ex.getMessage()%>
<% }
%>
</body>
</html>
</code>
the exception
CORBA MARSHAL 1398079745 Maybe; nested exception is: org.omg.CORBA.MARSHAL: ----------BEGIN server-side stack trace---------- org.omg.CORBA.MARSHAL: vmcid: SUN minor code: 257 completed: Maybe at com.sun.corba.ee.impl.logging.ORBUtilSystemException.couldNotFindClass(ORBUtilSystemException.java:8101) at com.sun.corba.ee.impl.encoding.CDRInputStream_1_0.read_value(CDRInputStream_1_0.java:1013) at com.sun.corba.ee.impl.encoding.CDRInputStream_1_0.read_value(CDRInputStream_1_0.java:879) at com.sun.corba.ee.impl.encoding.CDRInputStream_1_0.read_abstract_interface(CDRInputStream_1_0.java:873) at com.sun.corba.ee.impl.encoding.CDRInputStream_1_0.read_abstract_interface(CDRInputStream_1_0.java:863) at com.sun.corba.ee.impl.encoding.CDRInputStream.read_abstract_interface(CDRInputStream.java:275) at com.sun.corba.ee.impl.io.IIOPInputStream.readObjectDelegate(IIOPInputStream.java:363) at com.sun.corba.ee.impl.io.IIOPInputStream.readObjectOverride(IIOPInputStream.java:526) at java.io.ObjectInputStream.readObject(ObjectInputStream.java:333) at java.util.ArrayList.readObject(ArrayList.java:591) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:585) at com.sun.corba.ee.impl.io.IIOPInputStream.invokeObjectReader(IIOPInputStream.java:1694) at com.sun.corba.ee.impl.io.IIOPInputStream.inputObject(IIOPInputStream.java:1212) at com.sun.corba.ee.impl.io.IIOPInputStream.simpleReadObject(IIOPInputStream.java:400) at com.sun.corba.ee.impl.io.ValueHandlerImpl.readValueInternal(ValueHandlerImpl.java:330) at com.sun.corba.ee.impl.io.ValueHandlerImpl.readValue(ValueHandlerImpl.java:296) at com.sun.corba.ee.impl.encoding.CDRInputStream_1_0.read_value(CDRInputStream_1_0.java:1034) at com.sun.corba.ee.impl.encoding.CDRInputStream.read_value(CDRInputStream.java:259) at com.sun.corba.ee.impl.presentation.rmi.DynamicMethodMarshallerImpl$14.read(DynamicMethodMarshallerImpl.java:333) at com.sun.corba.ee.impl.presentation.rmi.DynamicMethodMarshallerImpl.readArguments(DynamicMethodMarshallerImpl.java:393) at com.sun.corba.ee.impl.presentation.rmi.ReflectiveTie._invoke(ReflectiveTie.java:121) at com.sun.corba.ee.impl.protocol.CorbaServerRequestDispatcherImpl.dispatchToServant(CorbaServerRequestDispatcherImpl.java:648) at com.sun.corba.ee.impl.protocol.CorbaServerRequestDispatcherImpl.dispatch(CorbaServerRequestDispatcherImpl.java:192) at com.sun.corba.ee.impl.protocol.CorbaMessageMediatorImpl.handleRequestRequest(CorbaMessageMediatorImpl.java:1709) at com.sun.corba.ee.impl.protocol.SharedCDRClientRequestDispatcherImpl.marshalingComplete(SharedCDRClientRequestDispatcherImpl.java:155) at com.sun.corba.ee.impl.protocol.CorbaClientDelegateImpl.invoke(CorbaClientDelegateImpl.java:184) at com.sun.corba.ee.impl.presentation.rmi.StubInvocationHandlerImpl.invoke(StubInvocationHandlerImpl.java:129) at com.sun.corba.ee.impl.presentation.rmi.StubInvocationHandlerImpl.invoke(StubInvocationHandlerImpl.java:150) at com.sun.corba.ee.impl.presentation.rmi.bcel.BCELStubBase.invoke(Unknown Source) at ejb._WarenkorbRemote_DynamicStub.leseWarenkorb(_WarenkorbRemote_DynamicStub.java) at org.apache.jsp.index_jsp._jspService(index_jsp.java:122) at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:105) at javax.servlet.http.HttpServlet.service(HttpServlet.java:860) at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:336) at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:297) at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:247) at javax.servlet.http.HttpServlet.service(HttpServlet.java:860) at sun.reflect.GeneratedMethodAccessor96.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:585) at org.apache.catalina.security.SecurityUtil$1.run(SecurityUtil.java:249) at java.security.AccessController.doPrivileged(Native Method) at javax.security.auth.Subject.doAsPrivileged(Subject.java:517) at org.apache.catalina.security.SecurityUtil.execute(SecurityUtil.java:282) at org.apache.catalina.security.SecurityUtil.doAsPrivilege(SecurityUtil.java:165) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:257) at org.apache.catalina.core.ApplicationFilterChain.access$000(ApplicationFilterChain.java:55) at org.apache.catalina.core.ApplicationFilterChain$1.run(ApplicationFilterChain.java:161) at java.security.AccessController.doPrivileged(Native Method) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:157) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:263) at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:551) at org.apache.catalina.core.StandardContextValve.invokeInternal(StandardContextValve.java:225) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:173) at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:551) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:170) at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:551) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:132) at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:551) at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:933) at org.apache.coyote.tomcat5.CoyoteAdapter.service(CoyoteAdapter.java:189) at com.sun.enterprise.web.connector.grizzly.ProcessorTask.doProcess(ProcessorTask.java:604) at com.sun.enterprise.web.connector.grizzly.ProcessorTask.process(ProcessorTask.java:475) at com.sun.enterprise.web.connector.grizzly.ReadTask.executeProcessorTask(ReadTask.java:371) at com.sun.enterprise.web.connector.grizzly.ReadTask.doTask(ReadTask.java:264) at com.sun.enterprise.web.connector.grizzly.TaskBase.run(TaskBase.java:281) at com.sun.enterprise.web.connector.grizzly.WorkerThread.run(WorkerThread.java:83) Caused by: java.lang.ClassNotFoundException ... 69 more ----------END server-side stack trace---------- vmcid: SUN minor code: 257 completed: Maybe

Hi,
I have found a way out by passing the reference of my EJB in the HttpSession object and using it inside the javabean..

Help with jsp session validation

i've build up a page that only users wil 'administrator' as the session is variable can access. if they don't they will be directed to the login page.
However, I'm getting a null pointer exception.
my code is as follows:
<%@ page import="java.io.*"%>
<%
     if (session.getAttribute("id").equals(null) || !(session.getAttribute("id").equals("administrator")))
          response.sendRedirect("adminlogin.htm");
%>
Error Message:
type Exception report
message
description The server encountered an internal error () that prevented it from fulfilling this request.
exception
org.apache.jasper.JasperException
root cause
java.lang.NullPointerException
any pros please help? i know it's something to do with my jsp session validation. thanks in advance.

one more thing, with regrads to the solution evnafets provided. I tried it out on all my pages that requires administrator rights and found that the code only redirects when it's not expecting any parameters. Else, it just display an error message there. Is there a way around this? Or I should let let my end user suffer?
type Exception report
message
description The server encountered an internal error () that prevented it from fulfilling this request.
exception
org.apache.jasper.JasperException
     at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:248)
     at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:289)
     at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:240)
     at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
     at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:247)
     at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:193)
     at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:260)
     at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:643)
     at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:480)
     at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995)
     at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
     at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:643)
     at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:480)
     at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995)
     at org.apache.catalina.core.StandardContext.invoke(StandardContext.java:2396)
     at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:180)
     at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:643)
     at org.apache.catalina.valves.ErrorDispatcherValve.invoke(ErrorDispatcherValve.java:170)
     at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:641)
     at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:172)
     at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:641)
     at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:480)
     at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995)
     at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:174)
     at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:643)
     at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:480)
     at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995)
     at org.apache.coyote.tomcat4.CoyoteAdapter.service(CoyoteAdapter.java:223)
     at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:405)
     at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.processConnection(Http11Protocol.java:380)
     at org.apache.tomcat.util.net.TcpWorkerThread.runIt(PoolTcpEndpoint.java:508)
     at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:533)
     at java.lang.Thread.run(Thread.java:534)
root cause
java.lang.NullPointerException
     at org.apache.jsp.view_jsp._jspService(view_jsp.java:177)
     at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:136)
     at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
     at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:204)
     at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:289)
     at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:240)
     at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
     at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:247)
     at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:193)
     at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:260)
     at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:643)
     at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:480)
     at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995)
     at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
     at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:643)
     at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:480)
     at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995)
     at org.apache.catalina.core.StandardContext.invoke(StandardContext.java:2396)
     at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:180)
     at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:643)
     at org.apache.catalina.valves.ErrorDispatcherValve.invoke(ErrorDispatcherValve.java:170)
     at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:641)
     at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:172)
     at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:641)
     at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:480)
     at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995)
     at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:174)
     at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:643)
     at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:480)
     at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995)
     at org.apache.coyote.tomcat4.CoyoteAdapter.service(CoyoteAdapter.java:223)
     at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:405)
     at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.processConnection(Http11Protocol.java:380)
     at org.apache.tomcat.util.net.TcpWorkerThread.runIt(PoolTcpEndpoint.java:508)
     at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:533)
     at java.lang.Thread.run(Thread.java:534)

Help with jsp and javaBean in eclipse/Tomcat

Hi,
I am new to JSP and JavaBean. I am going through tutorial for a jsp page that uses a javaBean. I am using eclipse to create jsp page and the java bean.
My eclipse project "Date" has five package as under:-
1. Deployment Descriptor
2. Java Resources: src
3. build
4. WebContent
I have my data.jsp page in WebContent/WEB-INF/ folder. When I just run date.jsp in a browser as: http://localhost:8080/Date/date.jsp, it gets launched into the browser correctly. But when I add a JavaBean "TimeFormatterBean.java" in the Java Resources:src folder and use it in date.jsp page, I get errors as under:-
org.apache.jasper.JasperException: Unable to compile class for JSP:
An error occurred at line: 5 in the jsp file: /date.jsp
TimeFormatterBean cannot be resolved to a type
2: pageEncoding="ISO-8859-1"%>
3: <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
4:
5: <jsp:useBean id="formatter" class="TimeFormatterBean"/>
6:
7: <html>
8: <head>
The data.jsp page is as under:-
<jsp:useBean id="formatter" class="TimeFormatterBean"/>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
<title>Insert title here</title>
</head>
<body>
     <h1> Date JSP </h1>
     <p> The current time is:
     <%= new java.util.Date() %>
     <jsp:getProperty name="formatter" property="name"/>
     </p>
</body>
</html>I can see "TimeFormatterBean.class" in build/classes folder.
If anyone could please help me out with this, it would be very helpful
Thanks a lot!

You probably should place TimeFormatterBean inside a package, or maybe you could try importing it , even if it�s in the default package, with something like this <%@ page import="TimeFormatterBean" %> at the top

Help with JSP Forward !!!

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