Setting up a single Spring container context in the web.xml file.

web.xml

<!-- Creates the Spring Container shared by all Servlets and Filters -->
<listener>
  <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
</listener>

<!-- Processes application requests -->
<servlet>
  <servlet-name>appServlet</servlet-name>
  <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
  <init-param>
    <param-name>contextConfigLocation</param-name>
    <param-value></param-value>
  </init-param>
  <load-on-startup>1</load-on-startup>
</servlet>