3. Control Your Store with Controllers | Spring MVC Beginner's Guide

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Table Of Contents

Spring MVC Beginner's Guide

By : Ganeshan

4.3 (30)

Spring MVC Beginner's Guide

4.3 (30)

By: Ganeshan

Overview of this book

A step-by-step pragmatic approach to web application development using Spring MVC, with relevant screenshots and concise explanations. This book is aimed at helping Java developers who want to teach themselves Spring MVC, even if they have no previous experience with Spring MVC. It would be helpful to have a bit of familiarity with basic servlet programming concepts, but no prior experience is required.

Preface

Preface

What this book covers

What you need for this book

Who this book is for

Conventions

Time for action – heading

Reader feedback

Customer support

Free Chapter

1. Configuring a Spring Development Environment

1. Configuring a Spring Development Environment

Setting up Java

Time for action – installing JDK

Time for action – setting up environment variables

Configuring a build tool

Time for action – installing the Maven build tool

Installing a web server

Time for action – installing the Tomcat web server

Configuring a development environment

Time for action – installing Spring Tool Suite

Time for action – configuring Tomcat on STS

Time for action – configuring Maven on STS

Creating our first Spring MVC project

Time for action – creating a Spring MVC project in STS

Time for action – adding Spring jars to the project

Time for action – adding Java version properties in pom.xml

Time for action – adding a welcome page

Time for action – configuring the dispatcher servlet

Time for action – running the project

Summary

2. Spring MVC Architecture – Architecting Your Web Store

2. Spring MVC Architecture – Architecting Your Web Store

The dispatcher servlet

Time for action – examining request mapping

The web application context

Time for action – understanding the web application context

The web application context configuration

View resolvers

Time for action – understanding InternalResourceViewResolver

Model View Controller

An overview of the Spring MVC request flow

The web application architecture

The domain layer

Time for action – creating a domain object

The persistence layer

Time for action – creating a repository object

The service layer

Time for action – creating a service object

An overview of the web application architecture

Summary

3. Control Your Store with Controllers

3. Control Your Store with Controllers

Defining a controller

Time for action – adding class-level request mapping

The role of a controller in Spring MVC

Handler mapping

Using URI template patterns

Time for action – showing products based on category

Using matrix variables

Time for action – showing the products based on filter

Understanding request parameters

Time for action – adding the product details page

Time for action – implementing a master detail view

Summary

4. Working with Spring Tag Libraries

4. Working with Spring Tag Libraries

Serving and processing forms

Time for action – serving and processing forms

Customizing data binding

Time for action – whitelisting form fields

Externalizing text messages

Time for action – externalizing messages

Using Spring Security tags

Time for action – adding a login page

Summary

5. Working with View Resolver

5. Working with View Resolver

Resolving views

The redirect view

Time for action – examining RedirectView

Serving static resources

Time for action – serving static resources

Time for action – adding images to the product detail page

The multipart request in action

Time for action – adding images to the product page

Using ContentNegotiatingViewResolver

Time for action – configuring ContentNegotiatingViewResolver

Working with the handler exception resolver

Time for action – adding the response status exception

Time for action – adding an exception handler

Summary

6. Intercept Your Store with Interceptor

6. Intercept Your Store with Interceptor

Working with interceptors

Time for action – configuring an interceptor

Internationalization (i18n)

Time for action – adding internationalization

Audit logging

Time for action – adding the data audit interceptor

Conditional redirecting

Time for action – intercepting offer page requests

Summary

7. Validate Your Products with a Validator

7. Validate Your Products with a Validator

Bean validation

Time for action – adding bean validation support

Custom validation with JSR-303 / bean validation

Time for action – adding custom validation support

Spring validation

Time for action – adding Spring validation

Time for action – combining Spring and bean validations

Summary

8. Give REST to Your Application with Ajax

8. Give REST to Your Application with Ajax

Introducing REST

Time for action – implementing RESTful web services

Time for action – consuming REST web services

Handling a web service in Ajax

Time for action – consuming REST web services via Ajax

Summary

9. Apache Tiles and Spring Web Flow in Action

9. Apache Tiles and Spring Web Flow in Action

Working with Spring Web Flow

Time for action – implementing the order-processing service

Time for action – implementing the checkout flow

Time for action – creating views for every view state

Enhancing reusability through Apache Tiles

Time for action – creating views for every view state

Summary

10. Testing Your Application

10. Testing Your Application

Unit testing

Time for action – unit-testing domain objects

Integration testing with the Spring Test Context framework

Time for action – testing the product validator

Time for action – testing the product controller

Time for action – testing REST controllers

Summary

A. Using the Gradle Build Tool

A. Using the Gradle Build Tool

Installing Gradle

The Gradle build script for your project

Understanding the Gradle script

B. Pop Quiz Answers

Chapter 2, Spring MVC Architecture – Architecting Your Web Store

Chapter 3, Control Your Store with Controllers

Chapter 5, Working with View Resolver

Chapter 6, Intercept Your Store with Interceptor

Chapter 9, Apache Tiles and Spring Web Flow in Action

Index

Index

Handler mapping

We have learned that DispatcherServlet is the one that dispatches the request to the handler methods based on the request mapping; however, in order to interpret the mappings defined in the request mapping, DispatcherServlet needs a HandlerMapping implementation (org.springframework.web.servlet.HandlerMapping). The DispatcherServlet consults with one or more HandlerMapping implementations to find out which controller (handler) can handle the request. So, HandlerMapping determines which controller to call.

The HandlerMapping interface provides the abstraction for mapping requests to handlers. The HandlerMapping implementations are capable of inspecting the request and coming up with an appropriate controller. Spring MVC provides many HandlerMapping implementations, and the one we are using to detect and interpret mappings from the @RequestMapping annotation is the RequestMappingHandlerMapping class (org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerMapping...

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