Book Image

Java EE 8 Development with Eclipse - Third Edition

By : Ram Kulkarni
Book Image

Java EE 8 Development with Eclipse - Third Edition

By: Ram Kulkarni

Overview of this book

Java EE is one of the most popular tools for enterprise application design and development. With recent changes to Java EE 8 specifications, Java EE application development has become a lot simpler with the new specifications, some of which compete with the existing specifications. This guide provides a complete overview of developing highly performant, robust and secure enterprise applications with Java EE with Eclipse. The book begins by exploring different Java EE technologies and how to use them (JSP, JSF, JPA, JDBC, EJB, and more), along with suitable technologies for different scenarios. You will learn how to set up the development environment for Java EE applications and understand Java EE specifications in detail, with an emphasis on examples. The book takes you through deployment of an application in Tomcat, GlassFish Servers, and also in the cloud. It goes beyond the basics and covers topics like debugging, testing, deployment, and securing your Java EE applications. You'll also get to know techniques to develop cloud-ready microservices in Java EE.
Table of Contents (20 chapters)
Title Page
Copyright and Credits
Dedication
Packt Upsell
Free Chapter
1
Introducing JEE and Eclipse
Index

Consuming JMS messages using MDBs


Message-driven beans (MDBs) make consuming JMS messages a lot easier. With just a couple of annotations and implementing the onMessage method, you can make any Java object a consumer of JMS messages. In this section, we will implement an MDB to consume messages from the Course queue. To implement MDBs, we need to create an EJB project. Select File | New | EJB Project from the main menu:

Figure 10.9: Create a EJB project to implement MDBs

Enter Project name as CourseManagementEJB. Click Next. Accept the default values on the subsequent pages and click Finish on the last page.

Right-click on the project and select the New | Message-Driven Bean option. This opens the MDB creation wizard:

Figure 10.10: MDB creation wizard – class file information

Enter packt.jee.eclipse.jms.mdb as Java package and CourseMDB as Class name. Keep Destination type as Queue.

Destination name is the physical destination name that we specified when creating the queue and is not the JNDI...