This week's giveaway is in the Android forum.
We're giving away four copies of Android Security Essentials Live Lessons and have Godfrey Nolan on-line!
See this thread for details.
The moose likes Web Component Certification (SCWCD/OCPJWCD) and the fly likes cannot find the declaration of element taglib Big Moose Saloon
  Search | Java FAQ | Recent Topics | Flagged Topics | Hot Topics | Zero Replies
Register / Login


Win a copy of Android Security Essentials Live Lessons this week in the Android forum!
JavaRanch » Java Forums » Certification » Web Component Certification (SCWCD/OCPJWCD)
Bookmark "cannot find the declaration of element taglib" Watch "cannot find the declaration of element taglib" New topic
Author

cannot find the declaration of element taglib

sudhakar karnati
Ranch Hand

Joined: May 03, 2007
Posts: 93
Hi All,

I am using eclipse to practice custom tag examples given in the HFSJ

in eclipse i created new project as apache tomcat project and in WEB-INF folder i created a file named simple.tld with the following content

<?xml version = "1.0" encoding ="ISO-8859-1" ?>
<taglib xmlns="http://java.sun.com/xml/ns/j2ee"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee/web-jsptaglibrary_2_0.xsd" version="2.0">

<tlib-version>1.2</tlib-version>
<uri>simpleTags</uri>
<tag>
<description>marginally better use of a custom tag</description>
<name>simple1</name>
<tag-class>foo.SimpleTagTest1</tag-class>
<body-content>empty</body-content>
</tag>
</taglib>



and usetag.jsp with the following content
package foo;

import java.io.IOException;


import javax.servlet.jsp.tagext.SimpleTagSupport;
import javax.servlet.jsp.JspException;

public class SimpleTagTest1 extends SimpleTagSupport {

public void doTag() throws JspException, IOException {
getJspContext().getOut().print("This is the lamest use of a custom tag");
}
}

and SimpleTagTest1.java is placed in foo pacakge

but i am getting this error:
cvc-elt.1: cannot find the declaration of element 'taglib'

Can any body suggest me what is wrong?

Thanks & Regards,
Sudhakar Karnati
[ April 17, 2008: Message edited by: sudhakar karnati ]
Christophe Verré
Sheriff

Joined: Nov 24, 2005
Posts: 14687
    
  16

but i am getting this error:cvc-elt.1: cannot find the declaration of element 'taglib'

Where did you get this error ?


[My Blog]
All roads lead to JavaRanch
sudhakar karnati
Ranch Hand

Joined: May 03, 2007
Posts: 93
I am getting this error in the eclipse.
Marc Peabody
pie sneak
Sheriff

Joined: Feb 05, 2003
Posts: 4727

Try...

xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee http://java.sun.com/xml/ns/j2ee/web-jsptaglibrary_2_0.xsd"

... as your schema location in the TLD. This is really how it should be but I don't think Eclipse was so picky about it in the past.
[ April 17, 2008: Message edited by: Marc Peabody ]

A good workman is known by his tools.
sudhakar karnati
Ranch Hand

Joined: May 03, 2007
Posts: 93
Marc, Do you want me to remove version="2.0" attribute in the taglib..

and i did not include any web.xml in the project because there is no such thing explained in the HFSJ about web.xml in the Custom tag development chapter till the page i read.

I tried by removing verion attribute it is still showing the same error.

Please help some body..

Thanks & Regards,
Sudhakar Karnati
[ April 17, 2008: Message edited by: sudhakar karnati ]
Marc Peabody
pie sneak
Sheriff

Joined: Feb 05, 2003
Posts: 4727

Originally posted by sudhakar karnati:
I tried by removing verion attribute it is still showing the same error.

Ummm... but that's not what I said to try. You came up with that.

Are we communicating or are we both talking to ourselves here?

Did you try what I recommended?
sudhakar karnati
Ranch Hand

Joined: May 03, 2007
Posts: 93


I have changed my simple.tld as above and now it is showing 41 errors:

I did not create any web.xml file,if it should be created how it should be because in HFSJ that is not explained how to configure web.cml for tld(till the page i read)..

Please help me

Thanks & Regards,
Sudhakar Karnati
Christophe Verré
Sheriff

Joined: Nov 24, 2005
Posts: 14687
    
  16

When I asked "Where did you get this error ?", I was asking which file.
Christophe Verré
Sheriff

Joined: Nov 24, 2005
Posts: 14687
    
  16

This works:
The tag

The TLD (under WEB-INF)

The JSP


If you still have errors, this thread will be moved to the Eclipse forum.
Christophe Verré
Sheriff

Joined: Nov 24, 2005
Posts: 14687
    
  16

Also, put a web.xml looking like this under WEB-INF :
sudhakar karnati
Ranch Hand

Joined: May 03, 2007
Posts: 93
Thanks very much Christophe Verre.

Thanks very much for posting code also..

The thing i have learnt from this issue is for learners Netbeans is better option than Eclipse...

I experienced difficulty in using eclipse because we have to add plug-ins compared to Netbeans..

But i remember one thing in the preface page or somewhere in the HFSJ book it is given that if we are really preparing SCWCD we should not use any IDE..

but i have seen a topic which is totally about which IDE we should use..

even i am using IDE for practicing examples because it makes our life easy..


Thanks & Regards,
Sudhakar Karnati
[ April 18, 2008: Message edited by: sudhakar karnati ]
 
I agree. Here's the link: http://aspose.com/file-tools
 
subject: cannot find the declaration of element taglib
 
Similar Threads
simple tags
taglib problem in Netbeans
Doubt on nested tags
CustomTag
Simple Tag