Adding DispatcherServlet to web.xml

To enable this, we would need to add DispatcherServlet to web.xml. Let's look at how to do that:

    <servlet> 
      <servlet-name>spring-mvc-dispatcher-servlet</servlet-name>    
      <servlet-class> 
        org.springframework.web.servlet.DispatcherServlet 
      </servlet-class> 
      <init-param> 
        <param-name>contextConfigLocation</param-name> 
        <param-value>/WEB-INF/user-web-context.xml</param-value> 
      </init-param> 
        <load-on-startup>1</load-on-startup> 
    </servlet> 
    <servlet-mapping> 
      <servlet-name>spring-mvc-dispatcher-servlet</servlet-name> 
      <url-pattern>/</url-pattern> 
    </servlet-mapping>

The first part is to define a servlet. We are also defining a context configuration location, /WEB-INF/user-web-context.xml. We will define a Spring context in the next step. In the second part, we are defining a servlet mapping. We are mapping a URL / to the DispatcherServlet. So, all requests will be handled by the DispatcherServlet.