Not sure about these - maybe someone else can grab the ball and push ahead.
One of the things I was wondering about were FormBean instances and other
complex objects such as DB Pool connections.
"Jerry Jalenak" <[EMAIL PROTECTED]> on 06/13/2002 04:38:28 PM
Please respond to "Struts Users Mailing List"
<[EMAIL PROTECTED]>
To: "'Struts Users Mailing List'" <[EMAIL PROTECTED]>
cc: (bcc: Kevin Bedell/Systems/USHO/SunLife)
Subject: RE: Please help clarify or confirm -- HttpSession
Cool. Building on this then, I should be able to define some sort of
Collection (HashMap? Vector?) that I should be able to store instances of a
bean into (i.e. my authenticated user bean). It looks like everything
needs
to be defined as static - no problem. What about synchronization problems?
Does the access need to be serialized in anyway?
Jerry
-----Original Message-----
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]
Sent: Thursday, June 13, 2002 3:04 PM
To: Struts Users Mailing List
Subject: RE: Please help clarify or confirm -- HttpSession
OK. I checked this out.
I'm running Tomcat 4.03 on NT with JDK 1.3.1.
I created a simple static class:
-------------------------
public class ClassLoaderTest {
public static int counter;
public static void addCounter() {
counter++;
}
public static String getCounter () {
return Integer.toString(counter);
}
}
I compiled it and put the .class file in %CATALINA_HOME%\classes
-------------------------
I then created a simple jsp named "test.jsp"
<%@ page import="ClassLoaderTest" %>
<html>
<head>
<title>Testing Class Loaders</title>
</head>
<body>
<% ClassLoaderTest.addCounter(); %>
<% out.print("Counter = " + ClassLoaderTest.getCounter() ); %>
</body>
</html>
-------------------------
I then created two webapps, "webapp1" and "webapp2". They are completely
empty except for the test.jsp file and the following web.xml file:
<?xml version="1.0" encoding="ISO-8859-1"?>
<!DOCTYPE web-app
PUBLIC "-//Sun Microsystems, Inc.//DTD Web Application 2.2//EN"
"http://java.sun.com/j2ee/dtds/web-app_2_2.dtd";>
<web-app>
<!-- The Usual Welcome File List -->
<welcome-file-list>
<welcome-file>index.jsp</welcome-file>
</welcome-file-list>
</web-app>
Now - I then restarted Tomcat and opened two browsers. I pointed one to:
http://localhost:8080/webapp1/test.jsp
and the other to:
http://localhost:8080/webapp2/test.jsp
Then when I hit refresh on them I can see THEY ARE HITTING THE SAME OBJECT.
That is, this works. The counter increments each time I refresh either
browser.
Thanks for the thoughts on this Joe -
Kevin
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