Creating the request handlers
We will now build the handlers that are used to serve the HTTP requests from our Ext JS client. These handlers will be added to a new
web directory, as shown in the following screenshot:
Each handler will use the Spring Framework
@Controller annotation to indicate that the class serves the role of a "controller". Strictly speaking, the handlers that we will be defining are not controllers in the traditional sense of a Spring MVC application. We will only be using a very small portion of the available Spring controller functionality to process requests. This will ensure that our request handling layer is very lightweight ...