struts2-archetype-dbportlet/src/main/resources/archetype-resources/src/main/webapp/WEB-INF/web.xml

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE web-app PUBLIC "-//Sun Microsystems, Inc.//DTD Web Application 2.3//EN" "http://java.sun.com/dtd/web-app_2_3.dtd">
<web-app>

    <context-param>
		<param-name>contextConfigLocation</param-name>
		<param-value>/WEB-INF/applicationContext*.xml</param-value>
	</context-param>

    <filter id="filterdispatcher">
		<filter-name>struts</filter-name>
		<filter-class>org.apache.struts2.dispatcher.filter.StrutsPrepareAndExecuteFilter</filter-class>
    </filter>

	<filter-mapping>
		<filter-name>struts</filter-name>
		<url-pattern>/*</url-pattern>
	</filter-mapping>
 
    <listener>
		<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
	</listener>
    
    <listener>
		<listener-class>org.apache.struts2.portlet.context.ServletContextHolderListener</listener-class>
	</listener>

	<servlet id="preparator">
		<servlet-name>preparator</servlet-name>
		<servlet-class>org.apache.struts2.portlet.context.PreparatorServlet</servlet-class>
	</servlet>

    <welcome-file-list>
        <welcome-file>index.jsp</welcome-file>
    </welcome-file-list>
    
</web-app>