Recursion in a jsp page

I can't figure out where to put a method in a jsp page so that I can call it recursively. Tomcat keeps returning "Not expecting variable declaration here and pointing to the "private void methodname(..){" line.
I know it probably something basic but the generated java looks similar to the beans format.

I don't think you can declare a new method within a JSP page...This is because all of the Java (not javascript) code within a JSP is basically the contents of the service() method within a Servlet so what you're trying to do is declaring a new method within another method.
vc

Similar Messages

Recursive Print in JSP page

I have a tree like structure in my java code and I want to print the output in my JSP page. Any idea how to perform recursive print in a JSP page.

Couldnt U just use a while loop something like the following...
<table>
<%
while(tree.next()){
%>
<tr>
<td><%=tree.getString("output") %></td>
<td><%=tree.getString("output2") %></td>
</tr>
<%
} %>
</table>
or your version of that...
Assuming U have Ur tree.next returning a false when it gets to the end.
Hope I helped.
- meMyselfAndI

Can you open a second jsp page as popup/new window?

Hi all gurus!
I have a question regarding popups/new windows in an iview application. Instead of starting with a question let me instead describe what I want to do.
We have a jsp page that presents a search and then the search result in a table where one column is "clickable". When the user clicks a cell a server round trip retreives data specific for that cell value. This is standard functionality and already fixed so here is what differes: we want a new jsp window to open like a popup, with the data retreived from the server round trip and at the same time the first page with the table shall still be there so that you just can close the popup and click the next cell which creates a new server round trip and a new jsp popup and so on.
My solution which doesn't work yet: In application "a" I have a JavaScript for the clicked cell which opens another iview application "b" in a new window, by window.open("navurl_to_the_iview"), and that works fine.
At the same time the value of the clicked cell is written to the data bean and the bean is put in the http session (since component session does not reach between applications).
The second iview "b" retreives the bean from the http session and fills the jsp page with data.
Here is now the problem: no data is displayed and this because the iview "b" retreives the bean BEFORE iview "a" has been able to put the bean/value into the http session. How do I know this for sure? Simple, if I do a refresh of iview "b" the value is displayed.
I could do a JavaScript that recursively checks if the value in the bean is null or not but then I have to do a method that retreives the bean from the http session each time.
This could work but I wonder if this is the most simple solution. So my question for you gents and madams is: do you know of a more simple solution?
Best regards
Benny Lange
Edited by: Benny Lange on Oct 6, 2009 11:33 AM

Hi you all.
In this case the solution was to pass the id in the url to the second iview and let that iview use the id to retreive data from the backend system.
But I still think the question is interesting, if it's possible to open a second jsp window after a server round trip and still have the first one open.
All the best
Benny

Recursive calls by JSP tag files fail to compile

We're hitting an issue with recursive calls in JSP tag files. I found one unanswered post in the General forum - [Tag Files used recursivily throws exception|https://forums.oracle.com/forums/thread.jspa?threadID=853300] - and was wondering if anyone else has hit this or knows of any work-arounds/patches or knows how to raise suspected bugs with Oracle (when you don't have an official support relationship for WebLogic)?
Example tag file - /WEB-INF/tags/recurse/hello.tag:
<%@ tag body-content="empty" %>
<%@ attribute name="name" required="true" type="java.lang.String"%>
<%@ attribute name="depth" required="true" type="java.lang.Number"%>
<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
<%@ taglib prefix="r" uri="/WEB-INF/tags/recurse/recurse.tld" %>
<table border="1" cellpadding="3" cellspacing="3">
<tr>
<td>
Hello ${name} [${depth}]
</td>
<c:if test="${depth > 1}">
<td>
<r:hello name="${name}" depth="${depth-1}"/>
</td>
</c:if>
</tr>
</table>
Example tld file - /WEB-INF/tags/recurse/recurse.tld:
<?xml version="1.0" encoding="UTF-8" ?>
<taglib xmlns="http://java.sun.com/xml/ns/javaee"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-jsptaglibrary_2_1.xsd"
version="2.1">
<description>Library with Recursive tag</description>
<tlib-version>1.0</tlib-version>
<shortname>r</shortname>
<tag-file>
<name>hello</name>
<path>/WEB-INF/tags/recurse/hello.tag</path>
</tag-file>
</taglib>
Example jsp file - /recurse/test.jsp:
<%@ page language="java" pageEncoding="UTF-8" contentType="text/html; charset=utf-8"%>
<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
<%@ taglib prefix="r" uri="/WEB-INF/tags/recurse/recurse.tld" %>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<title>Recursive Tag-file Test</title>
</head>
<body>
<c:set var="name" value="${pageContext.request.remoteUser}"/>
<c:set var="depth" value="${5}"/>
<p>Welcome ${name}, here are ${depth} greetings</p>
<r:hello name="${name}" depth="${depth}"/>
</body>
</html>
The expected result from this example would be to get nested 5 HTML tables.
The current behaviour, is the following is shown on screen when loading the test.jsp:
Compilation of JSP File '/recurse/test.jsp' failed:
hello.tag:15:6: Current file's JSP version conflicts with current tag "r:hello"'s.
<r:hello name="${name}" depth="${depth-1}"/>
^-----^
hello.tag:15:6: Current file's JSP version conflicts with current tag "r:hello"'s.
<r:hello name="${name}" depth="${depth-1}"/>
^-----^
I believe the "JSP version conflicts with current tag" message is misleading (you also get the same error referring to the tag file's folder via a tagdir reference from the JSP and defining an 'implicit.tld' which declares version="2.1"). If you take the recursive <r:hello .../> call out of hello.tag the JSP and tag file compile and function fine. I tried the work around mentioned in the forum post mentioned above, taking the recursive call out, deploying, then putting the recursive tag call back in and just updating the tag file doesn't seem to work for me.
Using "weblogic.appc" you get a few more messages, though the issue is the same - tag file doesn't compile:
test.jsp:15:6: The tag handler class was not found "jsp_servlet._tags._recurse.__hello_tag".
<r:hello name="${name}" depth="${depth}"/>
^-----^
test.jsp:15:14: This attribute is not recognized.
<r:hello name="${name}" depth="${depth}"/>
^--^
test.jsp:15:29: This attribute is not recognized.
<r:hello name="${name}" depth="${depth}"/>
^---^
hello.tag:15:6: The tag handler class was not found "jsp_servlet._tags._recurse.__hello_tag".
<r:hello name="${name}" depth="${depth-1}"/>
^-----^
hello.tag:15:6: Current file's JSP version conflicts with current tag "r:hello"'s.
<r:hello name="${name}" depth="${depth-1}"/>
^-----^
Happy to send this example as an ear/war for anyone that's interested.
At this stage, WebLogic seems to be the only servlet container with this limitation.
This has been tested with WebLogic 10.3.3.0 and 12.1.1.0.
The context for this is that the issue is present in a (larger) enterprise application. The above simple example with recursive tags is what we have isolated as the problem.
Although I/we may not have a support relationship for WebLogic, our clients will, so if the solution is apply an already existing patch that solution would be acceptable.

Somethings definitely wrong with your gcc installation.
Which gcc are you using. What output do you get from "which gcc".
Solaris 10 ships with a gcc in /usr/sfw/bin.
If your using a 3rd party gcc try changing your path to put /usr/sfw/bin before whereever the 3rd party gcc lives. Or just uninstall it.

How to use single JSP page for multiple users.

Hi ,
I am doing messenger kind of program using JSP and tomcat server.
When i type message it is showing in the some div. If some other person request for the same page by giving my IP address and jsp page, he should able to see what i have typed on page so far.
how can i do that one . can any one guide me .
Thanks in advance.

SuneelGoodatJava wrote:
Hi ,
I am doing messenger kind of program using JSP and tomcat server.
When i type message it is showing in the some div. If some other person request for the same page by giving my IP address and jsp page, he should able to see what i have typed on page so far.
how can i do that one . can any one guide me .
Thanks in advance.HTTP is a request/response protocol. You can't do what you're suggesting without "pushing" what you type to all the other users. That's not the way HTTP works. Maybe an applet and servlet.
%

How to print new line in jsp page

hi
how to print new line in jsp page
thanks

\n - new line character is in java specific not HTML
specific.Well, if the correct line separator sequence (by far not always \n) would be used, it does add a new line to the HTML output. Too bad that you don't want to see HTML but formatted text. The BR tag is a formatting element for the displayed text, not a line break in HTML. ;)

Error While opening a JSP page from inside form window

Hi,
I am using Oracle EBS 12.0.4 and using IE 7 as my browser.
Now when i am trying to open a jsp page form EBS Home page (after login) it is opening perfectly.The problem occurs when i tried to open jsp pages from inside form window.
E.g. From the home page when i tried to open a jsp page "Control Purchasing Periods" which is assigned in one of our custom responsibility(Manager Systems-->PO Super User-->Set up-->Financials-->Accounting-->Control Purchasing Periods) it opens a new log in page for the EBS. When i logged in it is showing
Error
You have insufficient privileges for the current operation. Please contact your System Administrator. Same is happening when i am trying to open User Page form user management responsibility from inside a form window.Where as it is opening fine from home page.
Please help.

Hi, hueesin
in error log i got this 4 new lines while performing the transaction from my host
[Thu Dec 30 13:27:39 2010] [error] [client 172.16.6.144] [ecid: 1293695859:172.16.48.61:25634:0:8748,0] Directory index forbidden by rule: /dev02/KMCTEST/apps/apps_st/comn/java/classes/
[Thu Dec 30 13:27:40 2010] [error] [client 172.16.6.144] [ecid: 1293695860:172.16.48.61:25328:0:8829,0] Directory index forbidden by rule: /dev02/KMCTEST/apps/apps_st/comn/java/classes/
[Thu Dec 30 13:28:06 2010] [error] [client 172.16.6.144] [ecid: 1293695886:172.16.48.61:25654:0:9225,0] File does not exist: /dev02/KMCTEST/apps/apps_st/comn/java/classes/oracle/forms/engine/RunformBundle_en_IN.class
[Thu Dec 30 13:28:06 2010] [error] [client 172.16.6.144] [ecid: 1293695886:172.16.48.61:25654:0:9226,0] File does not exist: /dev02/KMCTEST/apps/apps_st/comn/java/classes/oracle/forms/engine/RunformBundle_en_IN.propertieswhile in access log i got
172.16.6.144 - - [30/Dec/2010:13:32:51 +0530] "POST /OA_HTML/OA.jsp?page=/oracle/apps/fnd/sso/login/webui/MainLoginPG&_ri=0&_ti=587084970&language_code=US&requestUrl=http%3A%2F%2Fkmctapp2.kmc.com%3A8005%2FOA_HTML%2FRF.jsp%3Ffunction_id%3D2014%26resp_id%3D50670%26resp_appl_id%3D7000%26security_group_id%3D0%26lang_code%3DUS%26params%3Df7B5hnH8rkFfR.idy0MT1JZrquJxVBy3CVpSV.GpXc0%26oas%3DAuZa28Bnhl7glqYyqXbjsg..&cancelUrl=http%3A%2F%2Fkmctapp2.kmc.com%3A8005%2FOA_HTML%2FAppsLogin&langCode=US&oapc=2&oas=rucHEnmoEQ25-3xRNnl0ZA.. HTTP/1.1" 302 708 1 "http://kmctapp2.kmc.com:8005/OA_HTML/RF.jsp?function_id=28636&resp_id=-1&resp_appl_id=-1&security_group_id=0&lang_code=US&params=Br702.NFW.nrlg1EodytbsK-Dc1k9ERgGeColziC.cPOIi7hiyjaPiR6AJ7.Lk4IUbiFt8MZ-sww1yPk9nLXIYqdPHfttMeywkt5IQhVsrG8Y9M-0CrrcAU8ZntmtaFjlkc2vXbUaot6TQpdqAPHJyaJn6YLsew516hhfiB2xemOmo6e-.WpPrlXfvBQG.XVr-Z8y-V4uRkwwHgWHTK.ju6jLsF35BmqTRszq39cgoHe38QZqjtonDRWgTFzvxooOAmX1EHPfxfMz88uKnVWnnzU-4996ZD8e3X0Dagp19gjOYgefJlT1fTUaFvMo3cP.-7Ypt0s4Cck.GhdFOnHRK1Ok6KdvnjFyjK-WHCy4ZHCvw3NZPREYBngqJc4gvnDziIu4Yso2j4kegCe-i5OCFG4hbfDGf7MMNcj5PZy1yFwJ8GIMHyNmCAg9Yo1bXn5cTHOy7xYWHyOD5.ax3JG6Q&oas=W0vxAqkroMB_7DgeNPZhYw.." "Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 5.1; .NET CLR 2.0.50727)"
172.16.6.144 - - [30/Dec/2010:13:32:51 +0530] "GET /OA_HTML/RF.jsp?function_id=2014&resp_id=50670&resp_appl_id=7000&security_group_id=0&lang_code=US&params=f7B5hnH8rkFfR.idy0MT1JZrquJxVBy3CVpSV.GpXc0&oas=AuZa28Bnhl7glqYyqXbjsg.. HTTP/1.1" 200 7534 0 "http://kmctapp2.kmc.com:8005/OA_HTML/RF.jsp?function_id=28636&resp_id=-1&resp_appl_id=-1&security_group_id=0&lang_code=US&params=Br702.NFW.nrlg1EodytbsK-Dc1k9ERgGeColziC.cPOIi7hiyjaPiR6AJ7.Lk4IUbiFt8MZ-sww1yPk9nLXIYqdPHfttMeywkt5IQhVsrG8Y9M-0CrrcAU8ZntmtaFjlkc2vXbUaot6TQpdqAPHJyaJn6YLsew516hhfiB2xemOmo6e-.WpPrlXfvBQG.XVr-Z8y-V4uRkwwHgWHTK.ju6jLsF35BmqTRszq39cgoHe38QZqjtonDRWgTFzvxooOAmX1EHPfxfMz88uKnVWnnzU-4996ZD8e3X0Dagp19gjOYgefJlT1fTUaFvMo3cP.-7Ypt0s4Cck.GhdFOnHRK1Ok6KdvnjFyjK-WHCy4ZHCvw3NZPREYBngqJc4gvnDziIu4Yso2j4kegCe-i5OCFG4hbfDGf7MMNcj5PZy1yFwJ8GIMHyNmCAg9Yo1bXn5cTHOy7xYWHyOD5.ax3JG6Q&oas=W0vxAqkroMB_7DgeNPZhYw.." "Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 5.1; .NET CLR 2.0.50727)"
172.16.6.144 - - [30/Dec/2010:13:32:51 +0530] "GET /OA_HTML/cabo/images/swan/t.gif HTTP/1.1" 304 0 0 "http://kmctapp2.kmc.com:8005/OA_HTML/RF.jsp?function_id=2014&resp_id=50670&resp_appl_id=7000&security_group_id=0&lang_code=US&params=f7B5hnH8rkFfR.idy0MT1JZrquJxVBy3CVpSV.GpXc0&oas=AuZa28Bnhl7glqYyqXbjsg.." "Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 5.1; .NET CLR 2.0.50727)"
172.16.6.144 - - [30/Dec/2010:13:32:51 +0530] "GET /OA_HTML/cabo/images/swan/errorl.gif HTTP/1.1" 304 0 0 "http://kmctapp2.kmc.com:8005/OA_HTML/RF.jsp?function_id=2014&resp_id=50670&resp_appl_id=7000&security_group_id=0&lang_code=US&params=f7B5hnH8rkFfR.idy0MT1JZrquJxVBy3CVpSV.GpXc0&oas=AuZa28Bnhl7glqYyqXbjsg.." "Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 5.1; .NET CLR 2.0.50727)"
172.16.6.144 - - [30/Dec/2010:13:32:51 +0530] "GET /OA_HTML/cabo/images/swan/navBarUnderTopTabsBg.gif HTTP/1.1" 304 0 0 "http://kmctapp2.kmc.com:8005/OA_HTML/RF.jsp?function_id=2014&resp_id=50670&resp_appl_id=7000&security_group_id=0&lang_code=US&params=f7B5hnH8rkFfR.idy0MT1JZrquJxVBy3CVpSV.GpXc0&oas=AuZa28Bnhl7glqYyqXbjsg.." "Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 5.1; .NET CLR 2.0.50727)"
172.16.6.144 - - [30/Dec/2010:13:32:51 +0530] "GET /OA_HTML/cabo/images/swan/footerBg.gif HTTP/1.1" 304 0 0 "http://kmctapp2.kmc.com:8005/OA_HTML/RF.jsp?function_id=2014&resp_id=50670&resp_appl_id=7000&security_group_id=0&lang_code=US&params=f7B5hnH8rkFfR.idy0MT1JZrquJxVBy3CVpSV.GpXc0&oas=AuZa28Bnhl7glqYyqXbjsg.." "Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 5.1; .NET CLR 2.0.50727)"

Error while running a jsp page : "jasper run time error"

hii
I'm facing trouble while running some jsp page . the error is as follows:
HTTP Status 500 -
type Exception report
message
description The server encountered an internal error () that prevented it from fulfilling this request.
exception
org.apache.jasper.JasperException: Unable to compile class for JSP
     org.apache.jasper.compiler.DefaultErrorHandler.javacError(DefaultErrorHandler.java:97)
     org.apache.jasper.compiler.ErrorDispatcher.javacError(ErrorDispatcher.java:346)
     org.apache.jasper.compiler.Compiler.generateClass(Compiler.java:414)
     org.apache.jasper.compiler.Compiler.compile(Compiler.java:472)
     org.apache.jasper.compiler.Compiler.compile(Compiler.java:451)
     org.apache.jasper.compiler.Compiler.compile(Compiler.java:439)
     org.apache.jasper.JspCompilationContext.compile(JspCompilationContext.java:511)
     org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:295)
     org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:292)
     org.apache.jasper.servlet.JspServlet.service(JspServlet.java:236)
     javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
root cause
Unable to find a javac compiler;
com.sun.tools.javac.Main is not on the classpath.
Perhaps JAVA_HOME does not point to the JDK
     org.apache.tools.ant.taskdefs.compilers.CompilerAdapterFactory.getCompiler(CompilerAdapterFactory.java:106)
     org.apache.tools.ant.taskdefs.Javac.compile(Javac.java:935)
     org.apache.tools.ant.taskdefs.Javac.execute(Javac.java:764)
     org.apache.jasper.compiler.Compiler.generateClass(Compiler.java:382)
     org.apache.jasper.compiler.Compiler.compile(Compiler.java:472)
     org.apache.jasper.compiler.Compiler.compile(Compiler.java:451)
     org.apache.jasper.compiler.Compiler.compile(Compiler.java:439)
     org.apache.jasper.JspCompilationContext.compile(JspCompilationContext.java:511)
     org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:295)
     org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:292)
     org.apache.jasper.servlet.JspServlet.service(JspServlet.java:236)
     javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
note The full stack trace of the root cause is available in the Apache Tomcat/5.0.28 logs.
Apache Tomcat/5.0.28
The set up in my system (path set up is as follows):
Catalina home: C:\ apache software foundation\Tomcat 5.0
Classpath: %java_home%;C:\j2sdk1.4.2_03\bin;
Javahome: C:\ j2sdk1.4.2_03\jre;
path: C:\ j2sdk1.4.2_03\bin
<there are other variables available in path, along with that I have added the j2sdk1.4.2_03\bin in path".
So if u have any way out for it please let me know.

I think you only need to add: c:\j2sdk1.4.2_01
you have specified jre on the end of your path, it is not the jre that is required, but the jdk.
If you are using startup.bat and shutdown.bat (or .sh on Linux) you can amend the files with a text editor (open the startup.bat in notepad), like so:
@echo off
set JAVA_HOME=c:\j2sdk1.4.2_01
if "%OS%" == "Windows_NT" setlocal
I this will start Tomcat with the correct settings, regardless of your environment settings.

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

Pls help me writing logic:iterate tag in jsp page

Hey guys , I am struck in retriving string p1,p2,p3 in the jsp page
Pls have a look ata the code
In DAO class:-
StdprdDAO.java
Public arrayList getPFP()
ArrayList a = new ArrayList();
While(rs.next())
     columnsVO colVO = new columnsVO;
     colVO.setProduct(rset.getString(1));//will store in String colProduct
     colVO.setFamily(rset.getString(2));//will store in String colFamily
colVO.setPrice(rset.getString(3));//will store in String colPrice
a.add(colVO);
return a;
In Action Class:-
ArrayList final = null;
StdprdDAO DAO = new stdprdDAO();
final = DAO.getPFP();
For(int i = 0; final !=null && i<final.size() ; i++)
     columnsVO VO = null;
     VO = (columnsVO)final.get(i);
     String p1 = (String) VO.getProduct();
     String p2 = (String) VO.getFamily();
     String p3 = (String) VO.getPrice();
     Request.setAttribute(p1,p1);
     Request.setAttribute(p2,p2);
     Request.setAttribute(p3,p3);
In JSP PAGE:-
id = columnsVO>
<bean:write name = columnsVO property=final id=p1>
but still I am doubting my above sentences in jsp page ,so pls correct them if possible.
Instead of l;ogic:iterate can I use directly getattribute(p1)? <logic:iterate
Still I m doubting I can not utilize columnsVO file in logic:iterate, I can utilize only formbean file.
So pls help me with this.

May I ask why have you done it?
If it is related to printing of the list then it is of no use.But it IS of use. The objects compEmployees is in scope.
It has the list we want to print out.
With logic:iterate:
<table>
     <tr>
       <th>Number</th>
       <th>Employee</th>
     </tr>
     <logic:iterate name="compEmployees" property="totalEmps" id="emp">
          <tr>
            <td>
              <bean:write name="emp" property="empNo"/>
            </td>
            <td>
              <bean:write name="emp" property="empName"/>
            </td>
          </tr>
     </logic:iterate>
</table>or alternatively with JSTL and c:forEach
<table>
     <tr>
       <th>Number</th>
       <th>Employee</th>
     </tr>
     <c:forEach items="${compEmployees.totalEmps}" var="emp">
          <tr>
            <td>
              <c:out value="${emp.empNo}"/>
            </td>
            <td>
              <c:out value="${emp.empName}"/>
            </td>
          </tr>
     </c:forEach>
</table>Cheers,
evnafets

[b]Error during JSP page processing[/b]

hi , i'm mech.
i have some probs with jsp. i am trying to connect jsp page with database and printing the data on the browser page. i have created DSN mm using microsoft odbc for oracle and oracle9i's driver oracle in orahome90 but it is giving yet . i have this coding and error.
------------------------jsp code--------------------------
package pagecompile.jsp;
import javax.servlet.*;
import javax.servlet.http.*;
import javax.servlet.jsp.*;
import java.io.PrintWriter;
import java.io.IOException;
import java.io.FileInputStream;
import java.io.ObjectInputStream;
import java.util.Vector;
import com.sun.server.http.pagecompile.jsp.runtime.*;
import java.beans.*;
import com.sun.server.http.pagecompile.jsp.JspException;
import java.sql.*;
public class _Connect extends HttpJspBase {
static char[][] jspxhtml_data = null;
public _Connect( ) {
private static boolean jspxinited = false;
public final void jspxinit() throws JspException {
ObjectInputStream oin = null;
int numStrings = 0;
try {
FileInputStream fin = new FileInputStream("E:\\JavaWebServer2.0\\tmpdir\\default\\pagecompile\\jsp\\pagecompile.jspConnect.dat");
oin = new ObjectInputStream(fin);
jspxhtml_data = (char[][]) oin.readObject();
} catch (Exception ex) {
throw new JspException("Unable to open data file");
} finally {
if (oin != null)
try { oin.close(); } catch (IOException ignore) { }
public void _jspService(HttpServletRequest request, HttpServletResponse response)
throws IOException, ServletException {
boolean jspxcleared_due_to_forward = false;
JspFactory _jspxFactory = null;
PageContext pageContext = null;
HttpSession session = null;
ServletContext application = null;
ServletConfig config = null;
JspWriter out = null;
Object page = this;
String _value = null;
try {
if (_jspx_inited == false) {
jspxinit();
jspxinited = true;
_jspxFactory = JspFactory.getDefaultFactory();
response.setContentType("text/html");
pageContext = _jspxFactory.getPageContext(this, request, response,
               "", true, 8192, true);
application = pageContext.getServletContext();
config = pageContext.getServletConfig();
session = pageContext.getSession();
out = pageContext.getOut();
out.print(_jspx_html_data[0]);
out.print(_jspx_html_data[1]);
// begin [file="E:\\JavaWebServer2.0\\public_html\\Connect.jsp";from=(14,2);to=(28,2)]
Class.forName("sun.jdbc.odbc.JdbcOdbcDriver");
Connection myconn=DriverManager.getConnection("Jdbc:Odbc:mm","madhulika","madhulika");
Statement stmt = myconn.createStatement();
ResultSet myResultSet = stmt.executeQuery("Select * from peopletable");
if(myResultSet != null)
     while(myResultSet.next())
          int eid=myResultSet.getInt("id");
          String fname=myResultSet.getString("firstname");
          String lname=myResultSet.getString("lastname");
          String mail=myResultSet.getString("email");
// end
out.print(_jspx_html_data[2]);
// begin [file="E:\\JavaWebServer2.0\\public_html\\Connect.jsp";from=(30,10);to=(30,13)]
out.print(eid);
// end
out.print(_jspx_html_data[3]);
// begin [file="E:\\JavaWebServer2.0\\public_html\\Connect.jsp";from=(31,10);to=(31,15)]
out.print(fname);
// end
out.print(_jspx_html_data[4]);
// begin [file="E:\\JavaWebServer2.0\\public_html\\Connect.jsp";from=(32,10);to=(32,15)]
out.print(lname);
// end
out.print(_jspx_html_data[5]);
// begin [file="E:\\JavaWebServer2.0\\public_html\\Connect.jsp";from=(33,10);to=(33,14)]
out.print(mail);
// end
out.print(_jspx_html_data[6]);
// begin [file="E:\\JavaWebServer2.0\\public_html\\Connect.jsp";from=(37,5);to=(43,0)]
stmt.close();
myconn.close();
// end
out.print(_jspx_html_data[7]);
} catch (Throwable t) {
if (out.getBufferSize() != 0)
out.clear();
throw new JspException("Unknown exception: ", t);
} finally {
if (!_jspx_cleared_due_to_forward)
out.flush();
_jspxFactory.releasePageContext(pageContext);
-------------------error in browser----------------------
Error during JSP page processing
java.sql.SQLException: [Microsoft][ODBC Driver Manager] Data source name not found and no default driver specified
     at java.lang.Throwable.(Compiled Code)
     at java.lang.Exception.(Compiled Code)
     at java.sql.SQLException.(SQLException.java:43)
     at sun.jdbc.odbc.JdbcOdbc.createSQLException(Compiled Code)
     at sun.jdbc.odbc.JdbcOdbc.standardError(JdbcOdbc.java:3814)
     at sun.jdbc.odbc.JdbcOdbc.SQLDriverConnect(JdbcOdbc.java:1029)
     at sun.jdbc.odbc.JdbcOdbcConnection.initialize(JdbcOdbcConnection.java:145)
     at sun.jdbc.odbc.JdbcOdbcDriver.connect(JdbcOdbcDriver.java:165)
     at java.sql.DriverManager.getConnection(Compiled Code)
     at java.sql.DriverManager.getConnection(DriverManager.java:126)
     at pagecompile.jsp._Connect._jspService(Compiled Code)
     at com.sun.server.http.pagecompile.jsp.runtime.HttpJspBase.service(HttpJspBase.java:87)
     at javax.servlet.http.HttpServlet.service(Compiled Code)
     at com.sun.server.http.pagecompile.jsp.runtime.JspServlet.runServlet(JspServlet.java:469)
     at com.sun.server.http.pagecompile.jsp.runtime.JspServlet.processJspPage(JspServlet.java:259)
     at com.sun.server.http.pagecompile.jsp.runtime.JspServlet.service(JspServlet.java:97)
     at javax.servlet.http.HttpServlet.service(Compiled Code)
     at com.sun.server.ServletState.callService(ServletState.java:226)
     at com.sun.server.ServletManager.callServletService(ServletManager.java:936)
     at com.sun.server.ProcessingState.invokeTargetServlet(ProcessingState.java:423)
     at com.sun.server.http.HttpProcessingState.execute(HttpProcessingState.java:79)
     at com.sun.server.http.stages.Runner.process(Runner.java:79)
     at com.sun.server.ProcessingSupport.process(Compiled Code)
     at com.sun.server.Service.process(Service.java:204)
     at com.sun.server.http.HttpServiceHandler.handleRequest(HttpServiceHandler.java:374)
     at com.sun.server.http.HttpServiceHandler.handleRequest(Compiled Code)
     at com.sun.server.HandlerThread.run(Compiled

Backing up a moment, is there a particular reason that you're using the JDBC-ODBC bridge rather than using the Oracle JDBC driver?
Have you taken a look at the JSP sample code available on OTN? I would start by making sure you can run that.
Justin
Distributed Database Consulting, Inc.
http://www.ddbcinc.com/askDDBC

Loading a .jsp page from another .jsp page?

Hi,
I have following IF statement in "Main.jsp" page to load "ChangeJob.jsp" page. I tested and made sure that The IF condition was true(alert function executed), but ChangeJob.jsp didn't load.
Did i miss something?
Main.jsp
<HTML>
<% if ( (!(woSt.equals("Indirect"))) && (woSt.length()!=0) ){%>
<SCRIPT>
alert("click OK to load Changejob.jsp");
document.form1.action="ChangeJob.jsp";
document.form1.submit();
</SCRIPT>
<%} %>
<BODY>
<form name="form1">
</form>
</BODY>
</HTML>

Hi,
The folloing code I am writing but in this my if loop is not working propery.
the problem I am checking for this...
if((!(progcode.equals(pall))) && (!(dcode.equals(dall))) && (!(yr.equals(yall))))
in the belo program I am using but always it is going in to the loop. when they are equal and when they r not eqal....
I have given compleate code in here pleace tell me hot to get it worked it properly.....
<%@ page language="java" session="true"%>
<%@ include file="connect.jsp"%>
<%! ResultSet rs2,rs1;
Statement stmt1,stmt2;
%>
<%
String gpcode=null,pname=null,dname=null,total=null,totalyr=null,gtotal=null;
int gdcode=0,gyear=0,gdata=0,deptcode=0;
String pall=null,dall=null,yall=null;
pall="all"; dall="99"; yall="1900";
String progcode=request.getParameter("programname");
String dcode=request.getParameter("departmentname");
String yr=request.getParameter("year");
deptcode=Integer.parseInt(dcode);
int year=Integer.parseInt(yr);
boolean flag=false;
%> <%= progcode%><%=" "+ dcode%><%= " "+yr%><br>
<%= pall%><%=" "+dall%><%=" " +yall%><br>
<%= progcode%><%= deptcode%><%= year%>
<%
if((!(progcode.equals(pall))) && (!(dcode.equals(dall))) && (!(yr.equals(yall))))
stmt=con.createStatement();
rs=stmt.executeQuery("select * from data where progcode='"+progcode+"' and deptcode='"+deptcode+"' and year='"+year+"' ");
flag=false;
if(rs!=null){
if(rs.next()){
flag=true;
if(flag){
gpcode=rs.getString("progcode");
gdcode=rs.getInt("deptcode");
gyear=rs.getInt("year");
gdata=rs.getInt("totalnoofstud");
stmt1=con.createStatement();
ResultSet trs=stmt1.executeQuery("select * from program where progcode='"+gpcode+"' ");
if(trs.next()){
pname=trs.getString(2);
stmt2=con.createStatement();
rs=stmt2.executeQuery("select * from department where deptcode='"+gdcode+"' ");
if(rs.next()){
dname=rs.getString("deptname");
else {
response.sendRedirect("viewdata.jsp?flag=false");
stmt=con.createStatement();
rs=stmt.executeQuery("select sum(totalnoofstud) from data where progcode='"+progcode+"' and deptcode='"+deptcode+"' ");
if(rs.next()){
total=rs.getString(1);
stmt=con.createStatement();
rs=stmt.executeQuery("select sum(totalnoofstud) from data where year='"+gyear+"' ");
if(rs.next()){
totalyr=rs.getString(1);
else{
stmt=con.createStatement();
rs=stmt.executeQuery(" select sum(totalnoofstud) from data ");
if(rs.next())
gtotal=rs.getString(1);
%>
<html>
<head><title>Passed Out Student Data</title></head>
<body background="foggy2.jpg">
<br><br>
<%
if(progcode!=pall && dcode!=dall && yr!=yall){%>
<%@ include file="getdatasingle.jsp" %>
<%}
else{%>
<br><br><br><center><b><font color="maroon" size=+3>Total Number Of Students Passed Out Till Now Are </font><font color="red" size=+3><%=" "+ gtotal%><
/font></b></center>
<%}%>
<center>
<input type="submit" name="ok" value="OK">
</center>
</body>
</html>
Regards,
Madhavi

Can someone help me correct this sql statement in a jsp page?

ive been getting the java.sql.SQLException: Incorrect syntax error for one of my sql nested statements. i cant seem to find similar egs online, so reckon if anyone here could help, really appreciate it.
as im putting the nested sql in jsp page, it has to be with lots of " " n crap. very confusing if there are nested.
heres the sql statement without those "" that i want to use:
select top 5 * from(
select top+"'"+offset+"'"+" * from prod where cat=" +"'" cat "'"+"
)order by prodID desc
when i put this in my jsp pg, i had to add "" to become:
String sql = "select top 5 * from("+"select top"+"'"+offset+"'"+" * from prod where cat=" +"'" +cat+ "'"+")order by prodID desc";cat=" +"'" cat "'"+")order by prodID desc";
all those "" are confusing me to no end, so i cant figure out what should be the correct syntax. the error says the syntax error is near the offset.

If offset is, say, 10, and cat is, say, "new", then it looks like you're going to produce the SQL:
select top 5 * from(
select top '10' * from prod where cat='new'
)order by prodID descThat looks exactly like incorrect syntax to me... top almost certainly can't handle a string literal as its operand... you almost certainly would want "top 10" instead of "top '10'"...
If you use PreparedStatement, you don't have to remember what you quote and what you don't and you can have your SQL in a single static final string to boot...

Need help in writing a .jsp page

Hi Guys,
I am new to JSP. My requirement is " I have a link on my webpage. When the user clicks that link, a HTML page is displayed which has parameters to be entered (for ex: from_date , to_date). When the user clicks the submit button, a jsp page should be displayed in which a query is run to display the output. For example, the user enters the from_date and to_date parameter values to know the employees employed within those dates in their company. The query is "select empname,empno,sal,dept,comm from emp where employed_date between from_date and to_date" . The following should run and display in the jsp page.
How can i write a .jsp to extract the parameters that are entered in the HTML form in to a .jsp and run the query with those parameters to display the output. Help needed in making me write this .jsp for this query.
Help Aprreciated.
Thanks

Hm, your requirements sound like homework assignment from classroom. If so, is itn't better that you find the answer youself? There are plenty of very relevant references for how to use jsp to handle html forms or talk to a rdbms through a jdbc connection. For example, for jsp and html forms, you can google "jsp html forms"; for jsp and sql query, search for "jsp jdbc".
Tell me if this is not helpful.

In JSP pages request.getParameter returns null

There are two jsp's,the first JSP has 1 textbox inside the form tag.We input the values in the textbox and submit.
Code :Ist jsp
<BODY>
<HEAD>
function validate()
document.add.submit();
</HEAD>
<FORM name="add" method="post" action=/dir/two.jsp" >
<TABLE width="37%" border="0" align="center" class="c4f3">
<TR>
<TD class="c4">Rating</TD>
<TD><input type=text name="rating"></TD?
</TR>
<TR>
<TD align=center><INPUT type="button" name="submitadd" value="Submit" onClick="validate()" </TD>
</TR>
</TABLE>
</FORM>
</BODY>
After the submit it goes to the 2nd JSP page .
code:2nd Jsp
<%
String Rating=request.getParameter("rating");
out.println(" Rating "+Rating);
%>
The 2nd JSP pages gets the values by request.getParameter.When I use method='post' in Ist JSP ,even if I enter values in the textbox, it prints null. But when I give method="get" , it prints the value.
Pls let me know if there is any problem in the code or its the problem due to webserver configuration.Also suggest the solution to over come this problem.
Thanks

If I'am right you have misplaced the opening body-tag of your first jsp-page.
The opening body-tag should follow after the closing head tag .
The structure of your HTML-code should look like this:
<html>
<head>
</head>
<body>
</body>
</html>

Recursion in a jsp page

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