Explain the role and working principle of Dispatcher Servlet in Java web application architecture.

Dispatcher Servlet is the central component in Java web application architecture, especially in Spring MVC.

Its role and operation:

• The Dispatcher Servlet handles all incoming HTTP requests.
• It analyzes the URL and determines which controller should process the request.
• After processing by the controller, the Dispatcher Servlet selects the appropriate view to display the result.
• It manages request routing and application component integration.

Thus, the Dispatcher Servlet acts as a front controller, centralizing request processing and simplifying data flow management within the web application.