No bean named 'dataSource' is defined

im trying to connect to database and execute the query.
But i get error: No bean named 'dataSource' is defined
 
My applicationContext.xml is placed under WEB-INF. it contains:
applicationContext.xml
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE beans PUBLIC "-//SPRING//DTD BEAN//EN" "/WEB-INF/dtd/spring-beans.dtd">

<beans>

      <!-- Message Properties -->
      <bean id="messageSource"
            class="org.springframework.context.support.ReloadableResourceBundleMessageSource">
            <property name="cacheSeconds" value="900"></property>
            <property name="basenames">
                  <list>
                        <value>classpath:portlet/i18n/reference/reference</value>
                  </list>
            </property>
      </bean>
      
      <bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource" destroy-method="close">  
            <property name="driverClassName" value="oracle.jdbc.driver.OracleDriver"/>  
            <property name="url" value="jdbc:oracle:thin:@localhost:1521/XE"/>  
            <property name="username" value="root"/>  
        <property name="password" value="root"/>  
    </bean>
   
    <bean id="jdbcTemplate" class="org.springframework.jdbc.core.JdbcTemplate">  
          <property name="dataSource" ref="dataSource"/>  
    </bean>
     
</beans>


----------------------------------------------------------
this is my JDBCDao.java class.

package com.hp.it.dao.support;

import javax.sql.DataSource;
import org.springframework.context.ApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;
import org.springframework.jdbc.core.JdbcTemplate;


public class JdbcDao {
        
              public static void main(String[]args) {
                    ApplicationContext ac = new ClassPathXmlApplicationContext("classpath*:/WEB-INF/applicationContext.xml");
                    DataSource dataSource = (DataSource) ac.getBean("dataSource");
                    JdbcTemplate jdbcTemplate = new JdbcTemplate(dataSource);
                      
                    String sql="delete from product where id=p1";
                    jdbcTemplate.execute(sql);
                      
                    }
         }