Book Image

Spring MVC: Beginner's Guide - Second Edition

By : Amuthan Ganeshan
Book Image

Spring MVC: Beginner's Guide - Second Edition

By: Amuthan Ganeshan

Overview of this book

Spring MVC helps you build flexible and loosely coupled web applications. The Spring MVC Framework is architected and designed in such a way that every piece of logic and functionality is highly configurable. Also, Spring can integrate effortlessly with other popular web frameworks such as Struts, WebWork, Java Server Faces, and Tapestry. The book progressively teaches you to configure the Spring development environment, architecture, controllers, libraries, and more before moving on to developing a full web application. It begins with an introduction to the Spring development environment and architecture so you're familiar with the know-hows. From here, we move on to controllers, views, validations, Spring Tag libraries, and more. Finally, we integrate it all together to develop a web application. You'll also get to grips with testing applications for reliability.
Table of Contents (20 chapters)
Spring MVC Beginner's Guide - Second Edition
Credits
About the Author
About the Reviewer
www.PacktPub.com
Preface

Overview of the Spring MVC request flow


The main entry point for a web request in a Spring MVC application is via the Dispatcher servlet. The Dispatcher servlet acts as a front controller and dispatches the requests to the other controller. The front controller's main duty is to find the appropriate right controller to hand over the request for further processing. The following diagram shows an overview of the request flow in a Spring MVC application:

The Spring MVC request flow

Okay, let's review the Spring MVC request flow in short:

  1. When we enter a URL in the browser, the request comes to the Dispatcher servlet. The Dispatcher servlet acts as a centralized entry point to the web application.

  2. The Dispatcher servlet determines a suitable controller that is capable of handling the request and dispatching that request to the controller.

  3. The controller method updates the objects in the model and returns the logical view name and updated model to the Dispatcher servlet.

  4. The Dispatcher servlet consults...