Spring MVC Architecture and Request Flow Guide in Java
This document provides a technical deep-dive into the Spring MVC (Model-View-Controller) framework, specifically focusing on its request-processing architecture. It outlines the role of the DispatcherServlet as the central Front Controller that orchestrates the flow between the client and backend components.
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Description
​The notes explain the interaction between key Spring components, including Handler Mapping for locating controllers, View Resolvers for identifying the correct UI resources, and the Controller layer for handling business logic. It also covers essential configuration concepts such as the WebApplicationContext and the use of the ModelAndView object to pass data to the presentation layer. This is an essential resource for understanding how Spring manages high-level web abstractions and data flow in a Java-based enterprise environment.
​Key Components Explained
- ​DispatcherServlet: Acts as the “Front Controller,” receiving all incoming HTTP requests and delegating them to the appropriate handlers.
- ​Handler Mapping: Responsible for mapping a specific URL request to the corresponding Controller class and method.
- ​Controller: Processes the user request, interacts with service layers, and returns a ModelAndView object.
- ​View Resolver: Resolves the logical view name returned by the controller into an actual physical view (like a JSP or HTML file).
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