Question

I am integrating the displaytag library into my Spring MVC Application. I am using Ant for builds in my project. I have followed the installation directions from the website, which you can find here
Installation Instructions for Displaytag

It states that the dependencies for displaytag use are the following

 commons-logging
 commons-lang
 commons-collections
 commons-beanutils
 log4j

I have downloaded and dropped all of these jars to the WEB-INF/lib directory. I have also selected the Build Path -> Configure Build Path -> Add Jar option in Eclipse to configure the build path. I am still receiving an error in my JSP
telling me

Can not find tag library descriptor for http://displaytag.sf.net

and it is underlining the URI in the following tag lib directive

 <%@ taglib uri="http://displaytag.sf.net" prefix="display"%>

I am aware of the many posts with this error, and that it typically has to do with dropping the correct Jars in the lib directory or specifying an incorrect URI, but I have copied and pasted the above code from the website. Does anybody know anything else that I need to check/configure?

Answer 1

I assume that you put the displaytag.jar file in WEB-INF/lib and on your build path as well …

The message is telling you that it cannot find the TLD file for the tag library. Eclipse should be able to find the TLD file in the META-INF directory of displaytag.jar with a file suffix of .tld.

I guess another possibility is that the .tld isn’t in the JAR file.

EDIT

what is wierd is I was using the displaytag 1.2, and I recieved this error, but I just downloaded 1.1 and it is working fine…any suggestions?

No idea. There are “.tld” files in the expected place in both displaytag 1.1 and 1.2, based on the copies I downloaded.

I guess it is possible that you had a bad download, or that the displaytag 1.2 TLD is broken in some non-obvious way. Or maybe it is just some random Eclipse bug …