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Java EE 8 Application Development

You're reading from   Java EE 8 Application Development Develop Enterprise applications using the latest versions of CDI, JAX-RS, JSON-B, JPA, Security, and more

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Product type Paperback
Published in Dec 2017
Publisher Packt
ISBN-13 9781788293679
Length 372 pages
Edition 1st Edition
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Author (1):
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David R. Heffelfinger David R. Heffelfinger
Author Profile Icon David R. Heffelfinger
David R. Heffelfinger
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Table of Contents (15) Chapters Close

Preface 1. Introduction to Java EE FREE CHAPTER 2. JavaServer Faces 3. Object Relational Mapping with the Java Persistence API 4. Enterprise JavaBeans 5. Contexts and Dependency Injection 6. JSON Processing with JSON-P and JSON-B 7. WebSocket 8. Java Messaging Service 9. Securing Java EE Applications 10. RESTful Web Services with JAX-RS 11. Microservices Development with Java EE 12. Web Services with JAX-WS 13. Servlet Development and Deployment 14. Configuring and Deploying to GlassFish

Developing a simple RESTful web service

In this section, we will develop a simple web service to illustrate how we can make methods in our service respond to different HTTP request methods.

Developing a RESTful web service using JAX-RS is simple and straightforward. Each of our RESTful web services needs to be invoked via its Unique Resource Identifier (URI). This URI is specified by the @Path annotation, which we need to use to decorate our RESTful web service resource class.

When developing RESTful web services, we need to develop methods that will be invoked when our web service receives an HTTP request. We need to implement methods to handle one or more of the four types of request that RESTful web services handle: GET, POST, PUT, and/or DELETE.

The JAX-RS API provides four annotations that we can use to decorate methods in our web service. These annotations are appropriately...

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