Custom-Tag-Support


            HelloWorld.java
 
package beans;
import javax.servlet.http.*;
import javax.servlet.jsp.*;
import javax.servlet.jsp.tagext.*;
import java.util.*;
public class HelloWorld extends TagSupport
{
    public int doStartTag() throws JspException
    {
        try
        {
            JspWriter out = pageContext.getOut();
            HttpServletResponse response = (HttpServletResponse)pageContext.getResponse();
            out.write("Hello world!");
        }
        catch(Exception e)
        {   
            throw new JspException(e.getMessage());
        }
        return EVAL_PAGE;
    }
} 
simple.tld
 
  PUBLIC "-//Sun Microsystems, Inc.//DTD JSP Tag Library 1.2//EN"
   "http://java.sun.com/dtd/web-jsptaglibrary_1_2.dtd">
    

  1.0
  1.2
  Simple Tags
  
    HelloWorld
    beans.HelloWorld
    empty
  
 
web.xml
 

PUBLIC "-//Sun Microsystems, Inc.//DTD Web Application 2.3//EN"
"http://java.sun.com/dtd/web-app_2_3.dtd">

  
      
         http://www.rntsoft.com/custom
      
      
         /WEB-INF/tags/simple.tld
      
  
  
    javax.servlet.jsp.jstl.fmt.timeZone
    US/Central
  
  
    database-driver
    org.gjt.mm.mysql.Driver
  
  
    database-url
    
    jdbc:mysql://localhost/forum?user=forumuser
  
  
    http://java.sun.com/jstl/fmt
    /WEB-INF/fmt.tld
  
  
    http://java.sun.com/jstl/fmt-rt
    /WEB-INF/fmt-rt.tld
  
  
    http://java.sun.com/jstl/core
    /WEB-INF/c.tld
  
  
    http://java.sun.com/jstl/core-rt
    /WEB-INF/c-rt.tld
  
  
    http://java.sun.com/jstl/sql
    /WEB-INF/sql.tld
  
  
    http://java.sun.com/jstl/sql-rt
    /WEB-INF/sql-rt.tld
  
  
    http://java.sun.com/jstl/x
    /WEB-INF/x.tld
  
  
    http://java.sun.com/jstl/x-rt
    /WEB-INF/x-rt.tld
  
  
    
    http://java.jeffheaton.com/taglib/jstl/forum
    /WEB-INF/forum.tld
  
  
    /tlt
    /WEB-INF/taglib.tld
  
 
jsp code with custom tag
 
<%@ taglib uri='http://www.rntsoft.com/custom' prefix='hw' %>
JSP Java Tutorial
