My "JSTL" test file can't run ,help.

Question

I copy all the jar file to %TOMCAT_HOME%/webapps/jstl/WEB_INF/lib/
copy all the tld file to %TOMCAT_HOME%/webapps/jstl/WEB_INF/tlds/
set the web.xml as below:
<?xml version="1.0" encoding="ISO-8859-1"?>
<!DOCTYPE web-app
    PUBLIC "-//Sun Microsystems, Inc.//DTD Web Application 2.3//EN"
    "http://java.sun.com/dtd/web-app_2_3.dtd">
<web-app>
  <taglib>
     <taglib-uri>http://jakarta.apache.org/taglibs/core</taglib-uri>
     <taglib-location>/WEB-INF/tlds/c.tld</taglib-location>
  </taglib>
</web-app>set the jsp file as below:
<%@taglib uri="http://jakarta.apache.org/taglibs/core" prefix="c"%>
<c:out value="CORE" default="null"/>
<br>
<c:out default="null"/>when running, it has errors below:
javax.servlet.ServletException: fRecognizedFeatures
     at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:248)
java.lang.NoSuchFieldError: fRecognizedFeatures
     at org.apache.xerces.parsers.XML11Configuration.(Unknown Source)
What does these errors mean?
How can i handle them?

Answer 1

Thank u and i'll try it when i back to office, but do
u mean I should copy the META-INF to my website?No.
>
What's the use of META-INF ?The META-INF is part of a JAR file. It is where 'meta-information' is stored. To learn more about JARs then go to the Tutorial section of this website and find the one on JARs.
>
There is another strange problem. In JSTL source,
there is an example called "Standard-examples.war".
I copy to the webapps. Run tomcat to unzip it, I have
a look at the Standard-examples folder, all the
jar,tld,class,WEB-INF are in it and all the think are
configed correctly.
But when i test it
"http://localhost/Standard-examples/index.jsp".
It give the same err-messge as I gave at this thread
first.
Why? The downloade examples should not be configed
wrong, but it gave the same error, I think is there
any problem with my website.
I'm confused with itThat does sound like ether there is a problem with your server, or with the JSTL you downloaded. First I would delete all JSTL refernces and re-install JSTL the correct way. Then restart the server.
This error may not be related to JSTL, though. It may be that your server.xml, or your web.xml is not configured correctly.