Book Image

JBoss AS 7 Development - Second Edition

By : Francesco Marchioni
Book Image

JBoss AS 7 Development - Second Edition

By: Francesco Marchioni

Overview of this book

JBoss Application Server meets high standards of reliability, efficiency, and robustness, and is used to build powerful and secure Java EE applications. It supports the most important areas of Java Enterprise programming including EJB 3.1, Contexts and Dependency Injection, JAX-WS and JAX-RS web services, the security framework, and more. Getting started with JBoss application server development can be challenging; however, with the right approach and guidance, you can easily master it and this book promises that.Written in an easy-to-read style, this book will take you from the basics of JBoss AS—such as installing core components and plugins—to the skills that will make you a JBoss developer to be reckoned with, covering advanced topics such as developing applications with the JBoss messaging service, JBoss web services, clustered applications, and more.You will learn the necessary steps to install a suitable environment for developing enterprise applications on JBoss AS. You will also learn how to design Enterprise applications using Eclipse, JBoss plugins, and Maven to build and deploy your applications. Readers will learn how to enable distributed communication using JMS. Storing and retrieving objects will be made easier using the Java Persistence API. The core section of the book will take you into the programming arena with tested, real-world examples. The example programs have been carefully crafted to be easy to understand and useful as starting points for your applications. This practical guide will show you how to gain hands-on experience rapidly on Java EE development using JBoss AS with easy-to-understand and practical programming examples.
Table of Contents (19 chapters)
JBoss AS 7 Development
Credits
About the Author
About the Reviewers
www.PacktPub.com
Preface
Index

Web application clustering


Web application clustering involves two aspects: setting up an HTTP load balancer, and telling JBoss to make the application's user sessions HA. How to do the former depends on what load balancer you choose (mod_cluster is our suggested choice); the latter could not be simpler—just add the <distributable/> tag to your application's web.xml file.

Let's see in concrete how to pursue both steps.

Load balancing your web applications

You have several choices available in order to achieve load balancing of your HTTP requests; you can opt for a hardware load balancer that sits in front of your cluster of servers, or you can choose from the many available software solutions for JBoss AS, which include the following:

  • Use ApacheTomcat's mod_jk to route your requests to your nodes

  • Use Apache mod_proxy that configures Apache to act as a proxy server and forwards requests to JBoss AS nodes

  • Use JBoss' built-in solution mod_cluster to achieve dynamic load balancing of your requests...