Hi,
We've been experiencing some slightly strange behaviour attempting to access
the session object in the velocity context (i.e. from templates) using velocity
tools 1.3.
We kept finding that $session was null.
As part of our attempts to debug the problem, we basically set-up a tiny app
which was an exact mimic of the simple.war example web app (where we found that
$session was working fine).
The only difference between our minimal app and simple.war was that we used
velocity 1.5beta2
We continued to encounter problems in our own minimal application _until_ we
added a toolbox with a session scoped tool.
This seems very strange as I believe $session should be available regardless
when using VelocityView?
Has anyone got any ideas as to why we might be experiencing this problem?
It was noticable that we could not replicate this effect in simple.war (i.e.
commenting/uncommenting the "map tool" there did not affect access to $session)
Below is the deployment descriptor, toolbox, and list of jars used to create
our copy of simple.war.
Cheers,
Chris
-- web.xml --
<?xml version="1.0" encoding="utf-8"?>
<!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>
<servlet>
<servlet-name>velocity</servlet-name>
<servlet-class>org.apache.velocity.tools.view.servlet.VelocityViewServlet</servlet-class>
</servlet>
<servlet-mapping>
<servlet-name>velocity</servlet-name>
<url-pattern>*.vm</url-pattern>
</servlet-mapping>
<welcome-file-list>
<welcome-file>index.vm</welcome-file>
</welcome-file-list>
</web-app>
-- toolbox.xml --
<?xml version="1.0"?>
<toolbox>
<xhtml>true</xhtml>
<data type="number">
<key>velocityVersion</key>
<value>1.5</value>
</data>
<data type="number">
<key>velocityToolsVersion</key>
<value>1.3</value>
</data>
<data type="boolean">
<key>booleanTestValue</key>
<value>true</value>
</data>
<data type="string">
<key>applicationName</key>
<value>Lenin 0.1-alpha</value>
</data>
<!--
If you comment/uncomment the map tool,
access to $session should toggle off/on
-->
<tool>
<key>map</key>
<scope>session</scope>
<class>java.util.HashMap</class>
</tool>
<tool>
<key>date</key>
<scope>application</scope>
<class>org.apache.velocity.tools.generic.DateTool</class>
</tool>
</toolbox>
-- jars --
commons-beanutils-1.7.0
commons-collections-3.2
commons-digester-1.8
commons-lang-2.2
commons-logging-1.1
oro-2.0.8
velocity-1.5beta2
velocity-tools-view-1.3
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