@Component

• can be put on a class and then it means [spring] will manage its lifecycle

  • creation, death etc

• @Controller is a specialized form of @Component wherein it associates a Model and a ViewResolver with it

  • Model gives the data to the ViewResolver - usual server side rendered applications
  • ViewResolver can be anything I presume - JSP, JSON

• @Controller can be mixed with @ResponseBody to send json to caller, otherwise as per this book it sends both (model + view)