mapping.xml

<?xml version="1.0"?><!DOCTYPE mapping PUBLIC "-//EXOLAB/Castor Mapping DTD Version 1.0//EN"                         
"http://castor.org/mapping.dtd">
<mapping>     
	<class name="com.hmkcode.vo.Article">                 
		<map-to xml="article" />                 
		<field name="title" type="string">            
			<bind-xml name="title" node="attribute"/>        
		</field>
		<field name="url" type="string">            
			<bind-xml name="url" node="element"/>        
		</field>                  
		<field name="categories" type="string" collection="arraylist">             
			<bind-xml name="category" />        
		</field>             
		<field name="tags" type="string" collection="arraylist">             
			<bind-xml name="tag" />        
		</field>
	</class>
</mapping>