Book Image

Java EE 8 Application Development

Book Image

Java EE 8 Application Development

Overview of this book

Java EE is an Enterprise Java standard. Applications written to comply with the Java EE specification do not tie developers to a specific vendor; instead they can be deployed to any Java EE compliant application server. With this book, you’ll get all the tools and techniques you need to build robust and scalable applications in Java EE 8. This book covers all the major Java EE 8 APIs including JSF 2.3, Enterprise JavaBeans (EJB) 3.2, Contexts and Dependency Injection (CDI) 2.0, the Java API for WebSockets, JAX-RS 2.1, Servlet 4.0, and more. The book begins by introducing you to Java EE 8 application development and goes on to cover all the major Java EE 8 APIs. It goes beyond the basics to develop Java EE applications that can be deployed to any Java EE 8 compliant application server. It also introduces advanced topics such as JSON-P and JSON-B, the Java APIs for JSON processing, and the Java API for JSON binding. These topics dive deep, explaining how the two APIs (the Model API and the Streaming API) are used to process JSON data. Moving on, we cover additional Java EE APIs, such as the Java API for Websocket and the Java Message Service (JMS), which allows loosely coupled, asynchronous communication. Further on, you’ll discover ways to secure Java EE applications by taking advantage of the new Java EE Security API. Finally, you’ll learn more about the RESTful web service development using the latest JAX-RS 2.1 specification. You’ll also get to know techniques to develop cloud-ready microservices in Java EE.
Table of Contents (21 chapters)
Title Page
Credits
About the Author
About the Reviewers
www.PacktPub.com
Customer Feedback
Preface

Setting JMS resources


Before we can start writing code to take advantage of the JMS API, we need to configure some GlassFish resources. Specifically, we need to set up a JMS Connection Factory, a message queue, and a message topic.

Note

Java EE 7 and Java EE 8 require all compliant application servers to provide a default JMS connection factory. GlassFish, being a fully compliant Java EE 8 application server (and the Java EE 8 reference implementation), complies with this requirement, so, strictly speaking, we don't really need to set up a connection factory. In many cases we may need to set one up, therefore in the following section, we illustrate how it can be done.

Setting up a JMS connection factory

The easiest way to set up a JMS connection factory is via GlassFish's web console. As previously mentioned from, Chapter 1, Introduction to Java EE, that the web console can be accessed by starting our domain by entering the following command on the command line:

asadmin start-domain domain1

We...