[arnor]

Hi to all
why when I add jstl on my new project in web.xml there aren’t the tag lib definition?
ex.
<taglib>
<taglib-uri>http://sun&#8230;.</taglib-uri>
<taglib-location>/WEB-INF/c.tld</taglib-location>
</taglib>

are there optional?

regards Lorenzo

[Riyad Kalla]

Yes they are, the web spec states that taglib resolution CAN occur in 2 ways:
1) loading the TLDs from JARs that are in the classpath and using the default URIs defined in the JARs.
2) Reading the <taglib> entries in your web.xml file

Struts and JSTL both define default URIs and contain their TLD files in their own JARs, which is why you don’t need to define anything for them, you just need to use the default URIs in your JSP pages when trying to link to them.

You can find the default URIs by openeing the standard.jar file from JSTL, and then in the META-INF dir, open any of the TLDs you want to load, look near the top and you will see a <uri> tag at the top, for example the c-rt tag has this in it:

<uri>http://java.sun.com/jstl/core_rt</uri>

so in your JSP pages you would do:

<%@ taglib uri="http://java.sun.com/jstl/core_rt" prefix="c-rt" %>

Of course you can optionall override these defaults by adding <taglib> entries to your web.xml file.

[arnor]

many thanks Riyad . I understand, now

regards Lorenzo

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