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Lifecycle of a REST request in Spring Boot (DispatcherServlet).

  1. Request Received: The request hits the DispatcherServlet.
  2. Handler Mapping: The servlet consults HandlerMapping to find which Controller method should handle the request.
  3. Handler Adapter: DispatcherServlet uses HandlerAdapter to invoke the method.
  4. Controller Execution: Logic runs inside your @Controller.
  5. View Resolver: (If MVC) Result is resolved to a view. (If REST) The result is directly serialized into the response body by message converters.
  6. Response Sent: The response is sent back to the client.
Lifecycle of a REST request in Spring Boot (DispatcherServlet). | DevExCode