The dispatcherservlet configuration needs to include a handleradapter that supports this handler

In order to include a HandlerAdapter that supports a specific handler in the DispatcherServlet configuration, you need to add the appropriate configuration in the xml file used to configure the servlet context.

The HandlerAdapter is responsible for invoking the appropriate methods on the handler (controller) to handle the incoming request. Different HandlerAdapters are available for different types of handlers, such as annotated controllers, XML controllers, or simple controllers.

Here’s an example of how to configure a DispatcherServlet with a suitable HandlerAdapter:

      <mvc:annotation-driven/>
      <bean id="handlerAdapter" class="org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter"/>
      <bean id="handlerMapping" class="org.springframework.web.servlet.handler.BeanNameUrlHandlerMapping"/>
      <bean name="/example" class="com.example.ExampleController"/>
      <bean id="viewResolver" class="org.springframework.web.servlet.view.InternalResourceViewResolver">
         <property name="prefix" value="/WEB-INF/views/" />
         <property name="suffix" value=".jsp" />
      </bean>
   

In this example, we are using the RequestMappingHandlerAdapter to support annotated controllers. The BeanNameUrlHandlerMapping is used to map the URL “/example” to the ExampleController bean.

It is important to note that this is just one possible configuration. Depending on your needs and setup, you may need to use a different HandlerAdapter or additional configuration elements.