We need to add the application context configuration file to the jboss-springmvc web application class-path. Add a <listener/> tag for the org.springframework.web.context.ContextLoaderListener class, which starts up Spring's WebApplicationContext root. Specify the config location for the root context with the contextConfigLocation context parameter. The org.springframework.web.servlet.DispatcherServlet servlet dispatches requests to the handler. Specify the init parameter, contextConfigLocation, to configure another application context for the Spring MVC application in /WEB-INF/jboss-as-spring-mvc-context.xml, which is discussed in a later section. Specify a servlet mapping the URL pattern for the DispatcherServlet servlet. The web.xml file is listed in the following code:
<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns="http://xmlns.jcp.org/xml/ns/javaee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="..." version="3.1">
<display-name>Java EE 7 Starter Application</display-name>
<context-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath:/META-INF/spring/applicationContext.xml,
classpath:/META-INF/spring/infrastructure.xml</param-value>
</context-param>
<listener>
<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
</listener>
<servlet>
<servlet-name>jboss-spring</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<init-param>
<param-name>contextConfigLocation</param-name>
<param-value>/WEB-INF/jboss-as-spring-mvc-context.xml</param-value>
</init-param>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>jboss-spring</servlet-name>
<url-pattern>/</url-pattern>
</servlet-mapping>
</web-app>