Hi
I've installed Tomcat 4.1.18 now and the first thing I usually do is test
the tag libraries. Since I don't want to have a web.xml file for each and
every webapp, I put the taglib definitions into <TOMCAT_HOME>/conf/web.xml
and also strip out anything I don't want.
Specifically it looks like this (including the String taglib):
...
<taglib>
<taglib-uri>http://jakarta.apache.org/taglibs/string-1.0</taglib-uri>
<taglib-location>/WEB-INF/string.tld</taglib-location>
</taglib>
<taglib>
<taglib-uri>http://java.sun.com/jstl/core</taglib-uri>
<taglib-location>/WEB-INF/c.tld</taglib-location>
</taglib>
<taglib>
<taglib-uri>http://java.sun.com/jstl/fmt</taglib-uri>
<taglib-location>/WEB-INF/fmt.tld</taglib-location>
</taglib>
<taglib>
<taglib-uri>http://jakarta.apache.org/taglibs/standard/scriptfree</taglib-ur
i>
<taglib-location>/WEB-INF/scriptfree.tld</taglib-location>
</taglib>
...
So I downloaded JSTL 1.0.2, put the JAR files into <TOMCAT_HOME>/shared/lib
and then unpacked standard-examples.jar, deleting the
<TOMCAT_HOME>/webapps/standard-examples/WEB-INF/lib at the same time.
Everything worked fine. Next I deleted the TLDs that I didn't want, also
removing them from <TOMCAT_HOME>/webapps/standard-examples/WEB-INF/web.xml -
everything still worked fine.
Next I removed all the taglib definitions from
<TOMCAT_HOME>/webapps/standard-examples/WEB-INF/web.xml, since the ones I
wanted were defined anyway (see above), and just a couple of TLDs remained
in <TOMCAT_HOME>/webapps/standard-examples/WEB-INF:
c.tld
fmt.tld
scriptfree.tld
string.tld
Now the strange part starts: Some of the example pages don't work, they give
me
org.apache.jasper.JasperException: This absolute uri
(http://java.sun.com/jstl/core) cannot be resolved in either web.xml or the
jar files deployed with this application
at
org.apache.jasper.compiler.DefaultErrorHandler.jspError(DefaultErrorHandler.
java:105)
at
org.apache.jasper.compiler.ErrorDispatcher.dispatch(ErrorDispatcher.java:430
)
at
org.apache.jasper.compiler.ErrorDispatcher.jspError(ErrorDispatcher.java:154
)
at
org.apache.jasper.compiler.TagLibraryInfoImpl.(TagLibraryInfoImpl.java:159)
at
org.apache.jasper.compiler.Parser.parseTaglibDirective(Parser.java:354)
at org.apache.jasper.compiler.Parser.parseDirective(Parser.java:381)
at org.apache.jasper.compiler.Parser.parseElements(Parser.java:800)
at org.apache.jasper.compiler.Parser.parse(Parser.java:122)
at
org.apache.jasper.compiler.ParserController.parse(ParserController.java:199)
at
org.apache.jasper.compiler.ParserController.parse(ParserController.java:153)
at
org.apache.jasper.compiler.Compiler.generateJava(Compiler.java:223)
at org.apache.jasper.compiler.Compiler.compile(Compiler.java:351)
at
org.apache.jasper.JspCompilationContext.compile(JspCompilationContext.java:4
74)
at
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:1
84)
at
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:295)
at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:241)
...
This happens for the following examples (I installed Tomcat on port 80):
- http://localhost/standard-examples/import/Absolute.jsp (Ok, since it uses
a non-defined taglib (jstl-examples-taglib), this should probably crash...
but why on jstl/core?)
- http://localhost/standard-examples/import/Relative.jsp
- http://localhost/standard-examples/import/Encode.jsp
- http://localhost/standard-examples/import/ExposeString.jsp
The same happens for the fmt tags:
org.apache.jasper.JasperException: This absolute uri
(http://java.sun.com/jstl/fmt) cannot be resolved in either web.xml or the
jar files deployed with this application
at
org.apache.jasper.compiler.DefaultErrorHandler.jspError(DefaultErrorHandler.
java:105)
at
org.apache.jasper.compiler.ErrorDispatcher.dispatch(ErrorDispatcher.java:430
)
at
org.apache.jasper.compiler.ErrorDispatcher.jspError(ErrorDispatcher.java:154
)
...
for
- http://localhost/standard-examples/format/GermanLocale.jsp
- http://localhost/standard-examples/format/RequestEncoding.jsp (when I
follow the links on this page)
As soon as I put the <taglib> definitions back into
<TOMCAT_HOME>/webapps/standard-examples/WEB-INF/web.xml, everything works
fine again.
Now, from my understanding, either a tag library works or it doesn't... does
anyone have a clue what might be the problem?
Thanks & best regards,
Eric
P.S. I'm away till Jan. 6th, so I'll answer any questions that day.
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