Explain the request flow and its lifecycle in Spring MVC.
The request will be received by DispatcherServlet as the first step.
DispatcherServlet gets the help of HandlerMapping and maps the @Controller class associated with the given request to delegate the request.
So request gets transferred to the @Controller, and then @Controller will process the request by executing appropriate methods and returns ModeAndView object (contains both Model data and View name) back to the DispatcherServlet.
Now DispatcherServlet send the model object to the ViewResolver to resolve and retrieve the actual view page.
DispatcherServlet will pass the Model object to the View page to display the result and create the Response.
Finally DispatcherServlet sends the response back to the browser.
