How does request flow happen in Spring MVC?

DispatcherServlet acts as the front controller. Simplified actions taken by DispatcherServlet are listed below:

  • STEP 1: All requests arrive at the DispatcherServlet (Front Controller).
  • STEP 2: DispatcherServlet resolves theme and locale as configured.
  • STEP 3: Find’s appropriate Controller (Handler) to handle the request. (pre-processors and post-processors, if configured)
  • STEP 4: Redirect to the Controller (Handler)
  • STEP 5: Controller executes the request and returns a view name and a view model object.
  • STEP 6: DispatcherServlet resolves the view name and redirects to the view template. The response html is returned to DispatcherServlet.
  • STEP 7: DispatcherServlet send the response back to the browser.

spring 12

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