Ismael Blesa Part wrote:
>
> On my jsp I use invoke the taglib with:
> <%@ taglib uri="/isumtags.jar" prefix="isum" %>
Above line tells that "uri" points out either to an entry in
WEB-INF/web.xml file called /isumtags.jar being inside
<taglib-location>'s or references /isumtags.jar directly as tag library
descriptor for tags prefixed with "isum". "prefix" attribute is being
used as a namespace for defined tags. Thus, you could use user-defined
tags as follows:
<isum:mytag />
mytag in that case must be defined in tag library descriptor file as
<name>.
>
> Then on the web.xml what should I put?
>
> <taglib>
> <taglib-uri>/isumtags.jar</taglib-uri>
>
> <taglib-location>/WEB-INF/lib/isumtags.jar</taglib-location>
> </taglib>
Given that isumtags.jar is just archive with new tags, it should look
like:
<taglib>
<taglib-uri>/isumtags.ar</taglib-uri>
<taglib-location>/WEB-INF/isumtags.tld</taglib-location>
and isumtags.tld is a tag library descriptor which describes to servlet
container how tags being defined there should be used - attributes, etc.
As an example isumtags.tld could look like:
<taglib>
<tlibversion>1.0</tlibversion>
<shortname>My tags</shortname>
<tag>
<name>mytag</name>
<tagclass>my.package.with.MyTag</tagclass>
<bodycontent>JSP</bodycontent>
<info></info>
<attribute>
<name>name</name>
<required>false</required>
<rtexprvalue>false</rtexprvalue>
</attribute>
</tag>
</taglib>
Having done that, start using tags from isumtags.tld as:
<isum:mytag name="MyNotRequiredAttributeValue" />
Keep in mind that corresponding classes should be reachable in
WEB-INF/lib (as JAR) or WEB-INF/classes (as oridinary Java classes)
directory. Another point of interest is to give more descriptive name
for <taglib-uri> tag rather then a name which could be misunderstand as
Java ARchive.
Take a look at JSP Specification 1.1 (http://java.sun.com/products/jsp)
if you need more *understandable* information on it.
Jacek Laskowski
