Spring MVC Cookbook

Spring MVC Cookbook

By : Alexandre Bretet, Alex Bretet

Buy this Book

Spring MVC Cookbook

By: Alexandre Bretet, Alex Bretet

Buy this Book

Overview of this book

Spring MVC is a lightweight application framework that comes with a great configuration by default. Being part of the Spring Framework, it naturally extended and supported it with an amazing set of recognizable annotations. External libraries can be plugged in and plugged out. It also possesses a request flow. Complete support of REST web services makes the Spring architecture an extremely consistent choice to support your front-end needs and Internet transformations. From the design of your Maven modules, you will achieve an Enterprise-standard for a stateless REST application based on Spring and Spring MVC with this book. This guide is unique in its style as it features a massive overview of practical development techniques brought together from the Spring ecosystem, the new JEE standards, the JavaScript revolution and Internet of Things. You will begin with the very first steps of Spring MVC's product design. Focused on deployment, viability, and maintainability, you will learn the use of Eclipse, Maven, and Git. You will walk through the separation of concerns driven by the microservices principles. Using Bootstrap and AngularJS, you will develop a responsive front-end, capable of interacting autonomously with a REST API. Later in the book, you will setup the Java Persistence API (JPA) within Spring; learn how to configure your Entities to reflect your domain needs, and discover Spring Data repositories. You will analyze how Spring MVC responds to complex HTTP requests. You will implement Hypermedia and HATEOAS to guide your customer's stateless conversation with the product and see how a messaging-service based on WebSocket can be configured. Finally you will learn how to set up and organize different levels of automated-tests, including logging and monitoring.

Spring MVC Cookbook

Credits

About the Author

About the Reviewer

www.PacktPub.com

Preface

Free Chapter

Setup Routine for an Enterprise Spring Application

Introduction

Installing Eclipse for JEE Developers and Java SE 8

Configuring Eclipse for Java 8, Maven 3, and Tomcat 8

Defining the project structure with Maven

Installing Spring, Spring MVC, and a web structure

Designing a Microservice Architecture with Spring MVC

Introduction

Configuring a controller with simple URL mapping

Configuring a fallback controller using ViewResolver

Setting up and customizing a responsive single page webdesign with Bootstrap

Displaying a model in the View, using the JSTL

Defining a common WebContentInterceptor

Designing a client-side MVC pattern with AngularJS

Working with Java Persistence and Entities

Introduction

Configuring the Java Persistence API in Spring

Defining useful EJB3 entities and relationships

Making use of the JPA and Spring Data JPA

Building a REST API for a Stateless Architecture

Introduction

Binding requests and marshalling responses

Configuring content-negotiation (JSON, XML, and so on)

Adding pagination, filters, and sorting capabilities

Handling exceptions globally

Documenting and exposing an API with Swagger

Authenticating with Spring MVC

Introduction

Configuring Apache HTTP to proxy your Tomcat(s)

Adapting users and roles to Spring Security

Authenticating over a BASIC scheme

Authenticating with a third-party OAuth2 scheme

Storing credentials in a REST environment

Authorizing on services and controllers

Implementing HATEOAS

Introduction

Turning DTOs into Spring HATEOAS resources

Building links for a hypermedia-driven API

Choosing a strategy to expose JPA Entities

Retrieving data from a third-party API with OAuth

Developing CRUD Operations and Validations

Introduction

Extending REST handlers to all HTTP methods

Validating resources using bean validation support

Internationalizing messages and contents for REST

Validating client-side forms with HTML5 AngularJS

Communicating Through WebSockets and STOMP

Introduction

Streaming social events with STOMP over SockJS

Using RabbitMQ as a multiprotocol message broker

Stacking and consuming tasks with RabbitMQ and AMQP

Securing messages with Spring Session and Redis

Testing and Troubleshooting

Introduction

Automating Database Migrations with FlyWay

Unit testing with Mockito and Maven Surefire

Integration testing with Cargo, Rest-assured, and Maven failsafe

Injecting Spring Beans into integration tests

Modern application Logging with Log4j2

Index

Customer Reviews

5 star

4 star

3 star

2 star

1 star

Validating resources using bean validation support

After introducing the request-payload data binding process, we must talk about validation.

Getting ready

The goal of this recipe is to show how to get Spring MVC to reject request body payloads that are not satisfying a bean validation (JSR-303) or not satisfying the constraints of a defined Spring validator implementation.

After the Maven and Spring configuration, we will see how to bind a validator to an incoming request, how to define the validator to perform custom rules, how to set up a JSR-303 validation, and how to handle the validation results.

How to do it…

We added a Maven dependency to the hibernate validator:

<dependency>
  <groupId>org.hibernate</groupId>
  <artifactId>hibernate-validator</artifactId>
  <version>4.3.1.Final</version>
</dependency>

A LocalValidatorFactoryBean has been registered in our dispatcher-servlet.xml (cloudstreetmarket-api):
```
<bean id="validator" class="org.sfw...
```

Spring MVC Cookbook

By : Alexandre Bretet, Alex Bretet

Spring MVC Cookbook

By: Alexandre Bretet, Alex Bretet

Overview of this book

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Current Title:

Spring MVC Cookbook

Validating resources using bean validation support

Getting ready

How to do it…