Re: Unable to open taglibrary

[Martin Cooper]

You need a taglib directive in your JSP file. Try adding something like:

<%@ taglib uri="yourTagLibURI" prefix="yourTagPrefix" %>

at the beginning of your JSP.

--
Martin Cooper
Tumbleweed Communications


At 06:27 PM 9/11/00 +0200, you wrote:
>Hi all,
>
>I have such an error and I don't know where to modify code:
>
>I have a servlet forwarding request to a JSP file.
>
>That file instantiate a Bean and use a tag with attributes.
>I need to evaluate the body tag more than once.
>
>Thks
>Leonardo
>
>°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°
><jsp:useBean id="ListContainer" class="SimpleBean" />
><table>
><tr>
>
><provatag:ShowCategories name="CategoryName" type="String"
>Object_List_to_Show="<%= ListContainer.getCollectionCat_Prod()  %>" >
>         <td>
>             <a href="/JSP/CategoryTag?ID=<%= CategoryName %>"><%=
>CategoryName  %></a>
>         </td>
></provatag:ShowCategories>
>
></tr>
></table>
>°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°
>SimpleBean.java
>   public Collection getCollectionCat_Prod()
>   {
>         Object id = null;
>         this.loadCategories(id);
>         Collection listcoll = this.getCollectionCategories();
>         return listcoll;
>   }
>°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°
>ProvaTag.java
>   /** This is a needed method since 'Object_List_to_Show' is a parameter
>
>of the tag 'ShowCategories'
>    *   @param
>    */
>    public void setObject_List_to_Show(Collection members)
>    {
>         if (members.size() > 0)
>                 iterator = members.iterator();
>    }
>
>     /** Executed at run-time when the tag is find
>     */
>     public int doStartTag() throws JspException {
>         if(iterator == null)
>                  return SKIP_BODY;
>         if(iterator.hasNext()) {
>                  pageContext.setAttribute(name, iterator.next());
>                  return EVAL_BODY_TAG;
>          }
>          else {
>                  return SKIP_BODY;
>          }
>     }
>
>
>     /** Executed before the BodyContent has been evaluated .....
>     */
>     public void  doInitBody() throws JspTagException {
>       /*  try
>         {
>          } catch (JspTagException e)         {
>                  throw new JspTagException("InitTag: " +
>e.getMessage());         }
>
>°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°
>firsttaglib.tld
><!DOCTYPE taglib
>PUBLIC "-//Sun Microsystems, Inc.//DTD JSP Tag Library 1.1//EN"
>"http://java.sun.com/j2ee/dtds/web-jsptaglibrary_1_1.dtd">
>
><!-- a tag library descriptor -->
>
><taglib>
>   <!-- after this ..
>   "http://java.sun.com/j2ee/dtds/jsptaglibrary_1_2.dtd"
>   -->
>
>   <tlibversion>1.0</tlibversion>
>   <jspversion>1.1</jspversion>
>   <shortname>provatag</shortname>
>   <info>My first tag!
>   </info>
>
>   <tag>
>     <name>ShowCategories</name>
>     <tagclass>ProvaTag</tagclass>
>     <bodycontent>JSP</bodycontent>
>     <info>An iteration tag handler
>     </info>
>
>     <attribute>
>       <name>name</name>
>       <required>false/required>
>     </attribute>
>     <attribute>
>       <name>type</name>
>       <required>false</required>
>     </attribute>
>     <attribute>
>       <name>group</name>
>       <required>false</required>
>     </attribute>
>     <attribute>
>       <name>Object_List_to_Show</name>
>       <required>true</required>
>       <rtexprvalue>true</rtexprvalue>
>     </attribute>
>
>   </tag>
>°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°
>
>Error: 500
>
>Internal Servlet Error:
>
>org.apache.jasper.JasperException: Unable to open taglibrary
>firsttaglib.tld : Could not locate TLD META-INF/taglib.tld
>
>===========================================================================
>To unsubscribe: mailto [EMAIL PROTECTED] with body: "signoff
>JSP-INTEREST".
>Some relevant FAQs on JSP/Servlets can be found at:
>
>  http://java.sun.com/products/jsp/faq.html
>  http://www.esperanto.org.nz/jsp/jspfaq.html
>  http://www.jguru.com/jguru/faq/faqpage.jsp?name=JSP
>  http://www.jguru.com/jguru/faq/faqpage.jsp?name=Servlets

--
Martin Cooper
Tumbleweed Communications

===========================================================================
To unsubscribe: mailto [EMAIL PROTECTED] with body: "signoff JSP-INTEREST".
Some relevant FAQs on JSP/Servlets can be found at:

 http://java.sun.com/products/jsp/faq.html
 http://www.esperanto.org.nz/jsp/jspfaq.html
 http://www.jguru.com/jguru/faq/faqpage.jsp?name=JSP
 http://www.jguru.com/jguru/faq/faqpage.jsp?name=Servlets