jsp to demonstrate import attribute

Write a JSP Program to demonstrate the import attributes..

//index.jsp

<%@ taglib uri="WEB-INF/tlds/mytags.tld" prefix="m" %> 

Cube of 4 is: <m:cube number="4"></m:cube> 

//CubeNumber.java

package reva; 

import javax.servlet.jsp.JspException; 

import javax.servlet.jsp.JspWriter; 

import javax.servlet.jsp.tagext.TagSupport; 

 

public class CubeNumber extends TagSupport{ 

private int number; 

     

public void setNumber(int number) { 

    this.number = number; 

} 

 

public int doStartTag() throws JspException { 

    JspWriter out=pageContext.getOut(); 

    try{ 

        out.print(number*number*number); 

    }catch(Exception e){e.printStackTrace();} 

      

    return SKIP_BODY;  } 

} 

//mytags.tld

<?xml version="1.0" encoding="UTF-8"?>

<taglib version="2.1" xmlns="http://java.sun.com/xml/ns/javaee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-jsptaglibrary_2_1.xsd">

  <tlib-version>1.0</tlib-version>

  <short-name>mytags</short-name>

  <uri>/WEB-INF/tlds/mytags</uri>

   <description>A simple tab library for the examples</description> 

 

  <tag> 

    <name>cube</name> 

    <tag-class>reva.CubeNumber</tag-class> 

    <attribute> 

    <name>number</name> 

    <required>true</required> 

    </attribute> 

  </tag> 

</taglib>

output