Custom tag not evaluating ${} expressions

[Matthieu Levesque]

Hi,
I've been stuck for a few days now... I'm trying to build a custum tag with parameters but my setter always receive a string when I pass a value as ${model.testStr}.

It's one of my first tag so I as an exemple I redefined the c:out tag in my library... Same soruce code, same config and yet the explression is passed as a srting...
JSP:

<c:out value="${model.testStr}" escapeXml="false"/>
<lcc:out value="${model.testStr}" escapeXml="false"/>

Results in :

SWEET! ${model.testStr}

ps : "SWEET!" is my ${model.testStr}

Here's my lcc.tdl:

<?xml version="1.0" encoding="UTF-8"?>
<taglib xmlns="http://java.sun.com/xml/ns/j2ee"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee web-jsptaglibrary_2_0.xsd"
version="2.0">
<description>LCC tag library</description>
<display-name>LCC</display-name>
<tlib-version>1.1</tlib-version>
<short-name>lcc</short-name>
<uri>http://www.lacitect.on.ca/tags/lcc</uri>
<validator>
<description>
Provides core validation features for JSTL tags.
</description>
<validator-class>
com.lacitecollegiale.taglib.sample.JstlCoreTLV
</validator-class>
</validator>
<tag>
<name>hello</name>
<tagclass>com.lacitecollegiale.tag.Hello</tagclass>
<bodycontent>empty</bodycontent>
<info>
This is a simple hello tag.
</info>
<attribute>
<name>name</name>
<required>false</required>
<rtexpvalue>false</rtexpvalue>
</attribute>
</tag>
<tag>
<description>
Like <%= ... >, but for expressions.
</description>
<name>out</name>
<tag-class>com.lacitecollegiale.taglib.sample.OutTag</tag-class>
<body-content>JSP</body-content>
<attribute>
<description>
Expression to be evaluated.
</description>
<name>value</name>
<required>true</required>
<rtexprvalue>true</rtexprvalue>
</attribute>
<attribute>
<description>
Default value if the resulting value is null.
</description>
<name>default</name>
<required>false</required>
<rtexprvalue>true</rtexprvalue>
</attribute>
<attribute>
<description>
Determines whether characters <,>,&,'," in the
resulting string should be converted to their
corresponding character entity codes. Default value is
true.
</description>
<name>escapeXml</name>
<required>false</required>
<rtexprvalue>true</rtexprvalue>
</attribute>
</tag>
</taglib>

Any help will be greatly appreciated,

Thanks,

Matt

[Bear Bibeault]

As per forum instructions, please include what versions of JSP, JSTL and Servlets that you are using.

Problems like this are a sign of mixing incompatible versions, or of web app misconfiguration.

[Matthieu Levesque]

Here's what i'm using :
tomcat 6 with liferay 5.2 portlet container
portlet 2.0

For my jsp version I think it's 1.2 since in my web.xml I have the http://java.sun.com/dtd/web-app_2_3.dtd specified.

For my jstl version 2.0, as it was showing in my last post...

The problem is probably between the jsp 1.2 and jstl 2.0... I'll experiment a bit and let guys kknow...

[Bear Bibeault]

You'll need to get your versions straight. For example, there is no JSTL 2.0.

Check the JSP FAQs for info on setting up the proper versions and declaring your web.xml properly.

[Matthieu Levesque]

Hi,

Obviously my config is wrong... Would you have any good working example that I could follow?

Keep in mind that it'is my first custom tag...

[Bear Bibeault]

Have you consulted the JSP FAQ as instructed?

[Matthieu Levesque]

I finaly figured it out...

I changed my web.xml header to this :

<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns="http://java.sun.com/xml/ns/j2ee"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd"
version="2.4">

Thanks