How would you relate Spring MVC Framework to MVC architecture?
Câu trả lời
Spring MVC Framework is a robust, model-view-controller (MVC) architecture-based framework that facilitates the development of flexible and loosely coupled web applications. The framework aligns with the classic MVC design pattern, which separates an application into three main logical components: the model, the view, and the controller. This separation helps manage complex application structures by dividing the responsibilities among different components, which enhances maintainability and scalability.
Model
In Spring MVC, the model encapsulates the application data. Typically, these are Java objects that represent the data of the application and its business rules. The model objects do not depend on the controller or the views, allowing them to be reusable and easy to test[2][7][8].
View
The view in Spring MVC is responsible for rendering the model data and generating the HTML output that the client's browser can interpret. Spring MVC supports various view technologies like JSPs, Thymeleaf, and FreeMarker, which can be used to display the model data. The view retrieves the necessary information from the model via the controller, ensuring a clear separation of concerns[2][7][8].
Controller
The controller acts as an intermediary between the model and the view. It processes incoming requests, manipulates data using the model components, and returns the appropriate view along with the model data. In Spring MVC, controllers are defined using the @Controller annotation, and they handle requests through @RequestMapping methods. These methods define how different HTTP requests should be handled and which model data should be passed to the view[2][7][8].
DispatcherServlet
Central to the Spring MVC framework is the DispatcherServlet that acts as the front controller. It is responsible for dispatching requests to the appropriate controllers. The DispatcherServlet provides a shared algorithm for request processing, while actual work is performed by configurable, delegate components. This includes resolving views, handling exceptions, and processing requests by calling the appropriate controller methods[2][7][8].
