Advanced Java (2160707)

BE | Semester-4   Winter-2018 | 20-11-2018

Q4) (c)

What is MVC architecture? Explain Spring architecture with neat sketch

What is MVC Architecture?

  • MVC stands for Model-View-Controller. This pattern is used to separate application's concerns.
  1. Model - Model represents an object or JAVA POJO carrying data. It can also have logic to update controller if its data changes.
  2. View - View represents the visualization of the data that model contains.
  3. Controller - Controller acts on both model and view. It controls the data flow into model object and updates the view whenever data changes. It keeps view and model separate
(Figure: MVC)

Spring Architecture

Spring Architecture
(Figure: Spring Architecture)

  • Spring links objects together instead of the objects linking themselves together.
  • Spring object linking is defined in XML files, allowing easy changes for different application configurations thus working as a plug in architecture.
  • In an MVC architecture the controllers handle all requests.
  • Spring uses a “DispatcherServlet” defined in the web.xml file to analyze a request URL pattern and then pass control to the correct controller by using a URL mapping defined in a “Spring bean” XML file.