How does DispatcherServlet organize and coordinate the processing of incoming requests in an application?

DispatcherServlet in Spring MVC is a central component that receives all incoming HTTP requests and coordinates their processing.

Main stages of DispatcherServlet operation:

1. Receiving the request: DispatcherServlet intercepts the HTTP request.

2. Handler determination: using HandlerMapping, it finds the appropriate controller (handler) to process the request.

3. Handler invocation: DispatcherServlet calls the controller's method.

4. Processing the result: the controller returns a ModelAndView or another object, which DispatcherServlet passes to ViewResolver to select the view.

5. View rendering: the selected view is rendered, and an HTTP response is generated.

6. Sending the response to the client.

Thus, DispatcherServlet organizes the request processing chain, linking requests with controllers and views, providing centralized routing and processing management.