Session in JSP page

Hi all,
i built a web application now i want to use session in JSP pages to remember some variable such as password and entered date because i need them in later pages and i also don't want to send them via HTML hidden field. I actually don't know how to use session. Can anyone please just tell me how to create a session and store a variable and also how to retrieve the data from the session.
Another thing is guys can anyone tell me please that say i am user and i selected some items from a HTML select list and i submitted that and logged off the system now when i login later again i want to see those choices selected by default , i know it might have been done by sessions can anyone please tell me.
THANKS VERY MUCH

This is the way u can set and retrieve values from session
<% session.setAttribute("key","value"); %>
<% String user=(String)session.getAttribute("user");
%>
regards
Shanu

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Session Timout JSP Page Forward

Hi All,
I am currently working on a JSP site and want to add a JSP page forward that takes place when the user's session times out after a period of inactivity.
I have created a servlet that implements HttpSessionBindingListener and has methods in place for valueBound and valueUnboud. The methods are getting called as they should, however because there isn't an HttpResponse object I cannot do a response.forward....
So my question: Is the HttpSessionBindingListener the correct interface to be implementing to accomplish my goal? If so, how do I forward the user to the login page? If not, what should I use and how do I forward the user to the login page?
Thanks for your time and help.
Aaron

valueUnbound method? Arent you using a Model
View Controller type architecture? The servlet
is mainly used to to handle logic and navigate
to the appropriate view(your java server pages).
The code I supplied should be placed in the service
method of your servlet.. then it can handle the
request and determine where to go from there. Your
servlet should have three methods, the doPost, the
doGet, and the service method. The doPost and Get
should pass the request and response objects on to
the service method. Any other logic should be handled
in other classes that you create. The service method
basically decides what the next page should be.
Hope this helps..

Problem catching handle ejb session in jsp pages

Hello,
i'm trying to develop an ejb application.
I have created an ejb session stateful in a second ejb stateless :
InitialContext ic = new InitialContext();
UserSessionHome home = (UserSessionHome)ic.lookup("UserSessionHome");
UserSession conn = home.create(login,mdp);
Then I have to retrieve this ejb session stateful in a jsp page in order to remove it or to call some others functions developped in the bean interface.
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Sophie

You put them in the HttpSession. For "how," read the API docs.

Issue in applying SSL selectively to Login JSP Page--Session getting lost.

Hi,
I am facing some issues with SSL configuration on my web site running on tomcat 5.5. I am using jdk 1.5 and form based authentication with JAAS framework.
The SSL configuration is working perfectly when applied to complete web site, but starts giving problem when applied selectively to some JSP pages. At present I am trying to apply SSL just on the login page.
When the login screen loads up, the URL in the browser has a protocol "*https*", as expected, but it doesn't gets changed to "*http*" once the user has successfully logged in. Why is the automatic change from https to http not ocurring?
Also I want to know which is the default page, tomcat will direct the logged in user to, once successfully authenticated using form based login; Is there any way to change this default page to some other page. It looks like that tomcat automatically directs to index.html , once the user has been successfully authenticated, but I am not so sure. My index.html page is having 4 frames; the source of these frames are different JSP pages, which are not under SSL.
My aim is to apply SSL just on login.jsp so that password doesn't travel in clear text. Once the user is authenticated he should see index.html and the address bar's URL should change it's protocol from https to http.
Please, find below the code in my web.xml
<security-constraint>
<web-resource-collection>
<web-resource-name>CWA Application</web-resource-name>
<url-pattern>/about.jsp</url-pattern>
<url-pattern>/admin_listds.jsp</url-pattern>
<http-method>DELETE</http-method>
<http-method>GET</http-method>
<http-method>POST</http-method>
<http-method>PUT</http-method>
</web-resource-collection>
<auth-constraint>
<role-name>*</role-name>
</auth-constraint>
<user-data-constraint>
<transport-guarantee>NONE</transport-guarantee>
</user-data-constraint>
</security-constraint>
<security-constraint>
<web-resource-collection>
<url-pattern>/*login.jsp*</url-pattern>
<http-method>GET</http-method>
<http-method>POST</http-method>
</web-resource-collection>
<auth-constraint>
<role-name>*</role-name>
</auth-constraint>
<user-data-constraint>
<transport-guarantee>CONFIDENTIAL</transport-guarantee>
</user-data-constraint>
</security-constraint>
<login-config>
<auth-method>FORM</auth-method>
<realm-name>CWA Application</realm-name>
<form-login-config>
<form-login-page>/login.jsp</form-login-page>
<form-error-page>/login.jsp?error=true</form-error-page>
</form-login-config>
</login-config>
<welcome-file-list>
<welcome-file>login.jsp</welcome-file>
</welcome-file-list>
My login. jsp has below code:
<form name="login" method="POST" action='<%= response.encodeURL(*"j_security_check*") %>' >
<tr>
<td width="100%">
<table width="260" border="0" cellspacing="0" cellpadding="1">
<tr>
<td align="left" valign="top" rowspan="4"><img src="images/space.gif" width="15" height="5"></td>
<td align="right" class="login-user" nowrap ><p>User name: </p></td>
<td align="left" valign="top"><input maxLength="64" name="j_username" size="20"></td>
</tr>
<tr>
<td align="right" nowrap class="login-user"><p>Password: </p>
</td>
<td align="left" valign="top">
<input maxLength=\"64\" tabindex="2" type="password" name="j_password" size="20">
</td>
</tr>
</form>
The entries in my server.xml are following:
<Connector port="8080" maxHttpHeaderSize="8192"
maxThreads="150" minSpareThreads="25" maxSpareThreads="75"
enableLookups="false" redirectPort="8443" acceptCount="100"
connectionTimeout="20000" disableUploadTimeout="true" />
<Connector port="8443" protocol="HTTP/1.1" SSLEnabled="true"
maxThreads="150" scheme="https" secure="true"
keystoreFile="${java.home}\lib\security\cacerts" keystorePass="changeit"
clientAuth="false" sslProtocol="TLS" />
I have gone through the http://forums.sun.com/thread.jspa?threadID=197150 and tried implementing it; The filter as explained in the thread does gets called but the session values are still lost.
Please note I am using javascript to go from secure "https" to "http" once the user has successfully logged in The javascript code is as below:
top.location.href="http://localhost:8080/qtv/index.html." ;
If I use response.sendRedirect("http://localhost:8080/qtv/index.html") for going to non-secure mode, the index.html page does not gets loaded properly. (Please note that my index.html is made of *4 frames*, as explained earlier. This is a legacy code and frames can't be removed).
The reason for index.html not getting loaded properly is that the Address bar URL does NOT change its URL and protocol from https (https://localhost:8443/qtv/index.html ) to "*http*" (http://localhost:8080/qtv/index.html) when esponse.sendRedirect() is used ;this is the default behaviour of response.sendRedirect(). And because the protocol in address bar is https, index.html is not able to load the other JSP's in it's frames because of cross-frame-scripting security issues (The other JSP's to be loaded in frames are are NOT secure as discussed earlier).
Please let know if any way out.
Thanks,
Masaai

Hi
try to set the maximum interval between requests
eg:
session.setMaxInactiveInterval(6000);
vis

Session Login and Logout in jsp page

hi
i am developing jsp page
i completed except logout.jsp page
my login page is in Jsp format and then business Logic in servlet and then get method & set method in bean.java
i have login and then it sucess page there i have singout button
if i sign out it should go to login page
how to do
how to make session invalidate
how to get session id
i have one more doubt i should check session invalidate each jsp page
regarding session login and logout in jsp
if anybody knows please give me a piece of code regarding login and logout
Regards
Akshatha

This is part of your filter class now you need login.jsp page
<%@taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core"%>
<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
    <meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
    <link rel="Stylesheet" type="text/css" href="/PAS/css/site.css"/>
    <title>Automation System | Login Page</title>
</head>
<body>
<div align="center">
    <h1>Photint Automation System</h1>
</div>
<br/><br/><br/>
<center>
    <table border="1" cellpadding="0" cellspacing="0" width="40%" bgcolor="FFFFFFFF">
        <thead>
            <tr>
                <th align="left" height="30"> <h3> Login</h3></th>
            </tr>
        </thead>
        <tbody>
            <tr>
                <td>
                    <div align="center">
                        <form name="LOGIN" action="/PAS/LoginServlet" method="POST">
                            <table border="0">
                                <tbody>
                                    <tr>
                                        <td height="15"></td>
                                        <td height="15"></td>
                                        <td height="15"></td>
                                        <td height="15"></td>
                                    </tr>
                                    <tr>
                                        <td height="30"></td>
                                        <td align="right" height="30">User Name : </td>
                                        <td align="left" height="30"><input type="text" name="USERNAME" value="" size="35" /></td>
                                        <td height="30"></td>
                                    </tr>
                                    <tr>
                                        <td height="30"></td>
                                        <td align="right" height="30">Password : </td>
                                        <td align="left" height="30"><input type="password" name="PASSWORD" value="" size="35" /></td>
                                        <td height="30"></td>
                                    </tr>
                                    <tr>
                                        <td height="50"></td>
                                        <td height="50"></td>
                                        <td align="center" height="50"><input type="submit" value="Login" name="Login" /> <input type="reset" value="Reset" name="Reset" /></td>
                                        <td height="50"></td>
                                    </tr>
                                </tbody>
                            </table>
                        </form>
                    </div>
                </td>
            </tr>
        </tbody>
    </table>
</center>
<br/><br/><br/><br/><br/><br/><br/><br/><br/><br/><br/><br/><br/><br/>
<br/><br/><br/>
<center>Copyright © 2009 Photint FZ LLC</center>
<center>Powered by Ali Jamali</center>
<center>Version : 1.0</center>
</body>
</html>And you need loginServlet.java
package com.ali.util.filter;
import com.ali.entity.user.UserEntity;
import com.ali.util.HibernateUtil;
import java.io.IOException;
import javax.servlet.RequestDispatcher;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;
public class LoginServlet extends HttpServlet {
    private static final long serialVersionUID = 1L;
    protected void service(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
        String username = request.getParameter("USERNAME");
        String password = request.getParameter("PASSWORD");
        if (username == null || username.length() == 0) {
            System.err.println(" Username textfeild is empty ..... !");
            RequestDispatcher dispatcher = request.getRequestDispatcher("Pages/user/LogIn.jsp");
            dispatcher.forward(request, response);
            return;
        if (UserRegistry.isUserLoggedIn(username)) {
            System.out.printf("User [%s] is already logged in. \n", username);
            RequestDispatcher dispatcher = request.getRequestDispatcher("Pages/user/LogIn.jsp");
            dispatcher.forward(request, response);
            return;
        UserEntity user = null;
        try {
            user = (UserEntity) HibernateUtil.load(UserEntity.class, username);
            if (user == null || !user.getPassword().equals(password)) {
                RequestDispatcher dispatcher = request.getRequestDispatcher("Pages/user/LogIn.jsp");
                dispatcher.forward(request, response);
                System.err.println(" Password or username is not valid ..... !");
                return;
        } catch (Exception e) {
            e.printStackTrace();
            RequestDispatcher dispatcher = request.getRequestDispatcher("Pages/user/LogIn.jsp");
            dispatcher.forward(request, response);
            return;
        HttpSession session = request.getSession();
        System.err.println(request.getRemoteAddr());
        session.setAttribute("username", user.getFirstName());
        session.setAttribute("userType", user.isAdmin());
        UserRegistry.logInUser(username);
        response.sendRedirect("/PAS/index.jsp");
}finally is you need to just one user can be online at time or need to know how many user & who is online you should at this class also
package com.ali.util.filter;
import java.util.ArrayList;
import java.util.List;
public class UserRegistry {
    private static final List loggedInUsers = new ArrayList();
    public static void logInUser(String username) {
        loggedInUsers.add(username);
    public static void logoutUser(String username) {
        if (isUserLoggedIn(username)) {
            loggedInUsers.remove(username);
    public static boolean isUserLoggedIn(String username) {
        return loggedInUsers.contains(username);
}If you have any more Q. or any comment , Most welcome
Thanks
Ali Jamali

Using a Statefull Session Bean with RMI on Multiple JSP pages

Heya all,
i have a JBoss server running with a statefull bean on it. I want to use it on my JSP pages. But every time I start my JSP-page a NEW INSTANTION of the bean is created! For each user using my page, I want ONE bean.
Is there anyway to do this? ANything with the sessioncontext?
I can do it with local beans, using the simple tags in the JSP-page, but they do not work for Remote Beans.
(I use JNDI)

hi,
statefull session beans are client session specific. the instance will exists if client session exits.
now since u are loading the jsp page again in the other browser, a new instance will be associated with the current session.
hope it will work.
sameer

How to use Session scope in jsp page

Hello, I have login form, where user provides username and password. Then click on submit, it will forward to validation.jsp. Where it will check in database make sure username and password exit. Now i can also retrive accountid of perticular user. I want to put that username and accountid in session scope. so all other pages can use that username and accountid. How can i do that. I'm new at this, so please provide me example too. Here is my code for login.jsp and validation.jsp..
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<%@ page import="java.util.*" %>
<%@ page import="java.sql.*" %>
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//session.setAttribute( "accountID",accountID );//
<%
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     Statement stmt = null;
     ResultSet rs = null;
Class.forName("oracle.jdbc.driver.OracleDriver").newInstance();
conn = DriverManager.getConnection(connURL, "vapatel","pjdas");
stmt = conn.createStatement();
String user=request.getParameter("userName");
String password=request.getParameter("password");
boolean entrance=false;
stmt.excuteQuery("SELECT AccountID From Password WHERE USERNAME='"+user+"'");
rs = stmt.executeQuery("SELECT * FROM Password WHERE USERNAME='"+user+"' AND PASSWORD='"+password+"'");
while(rs.next()){
String dbUser = rs.getString("USERNAME");
String dbPassword= rs.getString("PASSWORD");
if ((user.equals(dbUser)) && (password.equals(dbPassword))){
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if (entrance==true){%>
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<%}
else{%>
<jsp:forward page="login.jsp"/>
<%}
%>

hi,
to put something into session scope in a jsp page use:
session.setAttribute("counter", Integer.toString(5));to retrieve is from a jsp page use:
String counterAttribute = (String)session.getAttribute("counter");

How to use a session, created in a jsp page, in a php page

Hello, forgive me for the newbie question.
Here is my problem:
I want to have a jsp page create a session, set some session variables and then redirect to a php page which will access those same session variables.
I have the redirection worked out, but I can't seem to find out how to use the jsp session in my php script.
Is this possible at all, and if so, how does it work?

Note that javascript runs on the client side, and JSP runs on the server. JSP and the session objects are NOT available to javascript in reaction to the user.
If this function is called only when the page is first created, not when the user interacts with the page, or if you want that value to be constant with respect to the javascript, then you can do this:
<%
String someValue = (String)session.getAttribute("theAttributeName");
%>
<script type="text/javascript">
     Calendar.setup({inputField:"f_date_dfFirstPmtDate",
                                          button:"f_trigger_dfFirstPmtDate",
                                         singleClick:true,
                                          ifFormat:<%=someVale%>});
</script>

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Hello!
I am quite new to JSP. I have a question about how to redirect a jsp page after the session is killed. Could anyone help?
thanks a lot in advance!

You can't, directly. There's no connection betweenthe server and browser.
even after invalidating the session. we can do it
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String cid= request.getParameter("counsellorID")
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All the pages included within the session have a session scope=session
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Hi to all,
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Please Help Me.

//My Java Class file
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.SQLException;
import javax.servlet.http.HttpSession;
import java.sql.Statement;
public class StuInfo extends Object {
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session.setAttribute("ID",StuId);
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How the hell does a person share session data between JSP page and a Servle

1. How the hell does one share session data between a servlet and a JSP page without using a bean but rather using a normal string variable.
2. When using session scope to access a bean the application complains about not finding the bean on the specified scope, however when I use an application scope the save the same bean, the application does find it.
Please help!!!!!!!
SERVLET:
HttpSession session = request.getSession(true);
ServletContext servletContext = session.getServletContext();
customerID = result.getString("CustomerID");
userName = result.getString("UserName");
session.setAttribute("UserName",userName);
session.setAttribute("CustomerID",customerID);
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<?xml version="1.0" encoding="UTF-8"?>
<jsp:root xmlns:jsp=http://java.sun.com/JSP/Page mlns:c="http://java.sun.com/jsp/jstl/core" xmlns:sql="http://java.sun.com/jsp/jstl/sql" version="2.0">
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For a start, just "session" instead of "request.session" would work better. But why did you post this here and not in the JSP forum? Doesn't seem to have anything to do with Java programming.

Use HTTP Session to pass Object from Web Dynpro for Java to JSP page

Is it possible to get a handle on the HTTP Session object from within a Web Dynpro application? I want to place a Java object in there that can be retrieved by a JSP page.
Thanks in advance.

Hi Tom Cole,
You can try this. i am not sure if this will work or not.
HttpServletRequest request = ((IWebContextAdapter) WDWebContextAdapter.getWebContextAdapter()).getHttpServletRequest();
You can also try this.
IWDRequest mm_request = WDProtocolAdapter.getProtocolAdapter().getRequestObject();
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Regards,
Sanyev

'session' is undefined - javascript error in my JSF/JSP page

I have the following JSF/JSP page. In onLoad() I invoke a javascript function func(). In this method, I attempt to lookup an attribute from the Http Session. When I run my application, my page is loaded with but the icon on the lower left corner of the browser indicated that there was an error. When I viewed the error, it read : 'session' is undefined.
The 'session' variable is available in a JSP page.
So why does my code not work from within a JSF application.
<?xml version="1.0" encoding="UTF-8"?>
<jsp:root version="1.2" xmlns:f="http://java.sun.com/jsf/core" xmlns:h="http://java.sun.com/jsf/html" xmlns:jsp="http://java.sun.com/JSP/Page"
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                    <ui:form binding="#{bean.form1}" id="form1">
                        <h:inputText binding="#{bean.inputText}" id="inputText"/>
                    </ui:form>
                </ui:body>
            </ui:html>
        </ui:page>
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        function func(){
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tsc

Because :
Session.getAtrribute is java-code that can only run on the server
and
var y = session.getAttribute is javascript-code run on the client.

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Hi,
I have code like this
<HTML>
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          <LINK REL ="stylesheet" TYPE="text/css" HREF="stylesheet/vclinical.css" TITLE="Style">
</HEAD>
<BODY>
<form name="form">
<select name="ss" onChange="this.form.qq.value=options[selectedIndex].value;getit()">
<option value=1>ss1</option>
<option value=2>ss2</option>
</select>
<input type="text" name="qq" value="">
<%
String asd=request.getParameter("qq");
session.setAttribute("Stored", asd);
System.out.println("value is"+asd);
%>
</form>
</BODY>
</HTML>
here i want to set value of a JSP variable qq to session scope and here i am not invoking any servlet i want value of qq in next JSP page i am not submitting the page so how i can handle this. this code does not work so please tell me how to do this i am using struts frame work

if you are using the struts framework, then you can make an ActionForm with getters and setters for the stuff that you are writing in the JSP i mean the radio buttons and text boxes etc
from that action form you can get the values any time any where
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<form-bean name="the action form name" type="package name.Actionform name" />
<action path="/controller " type="package name.controller name" name="Action form name" scope="session">
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