How does Spring Boot handle request lifecycle internally?

Spring Boot processes requests through DispatcherServlet, filters, interceptors, controllers, and view resolution.

An incoming HTTP request first passes through servlet filters, then reaches DispatcherServlet, which delegates to HandlerMapping to find controllers. Interceptors run preHandle and postHandle logic, followed by controller execution. The response is then processed by HttpMessageConverters or view resolvers before being sent back to the client.