Java™ Application Development on Linux - Dator

444Chapter 20Open Source Web <strong>Application</strong> Servers20.2DOWNLOADING JBOSSJBoss 1 is a complete application server. It provides a full, production-ready, J2EEenvironment. Be aware that as of this writing JBoss 4.0 has just passed the SunJ2EE certification tests, but even prior to the certification JBoss has been oneof the most widely used J2EE application servers.A great deal of JBoss information can be found on the JBoss Web site. 2Visit the site’s download page 3 to download the product.NOTEVersion 4.0 of JBoss has only just become available, so you will see us usingthe prior production stable version, 3.2.3. By the time you read this, however,version 4.0 will be the better choice. What we describe should apply equallywell to both.First off, you must choose what form of the product to download. Thechoice is really between a binary and source distribution. Within that choice,you can choose between a number of compression methods. We will downloadand install a binary. Just click on jboss-3.2.3.tgz and save the file. Beforewe install, we need to consider some issues of management.20.3BE AN ENABLER, OR “LET’S BE CODEPENDENT!”People often give inadequate consideration to the issues of management ofsoftware systems. This is especially true of Java systems, which are, by their nature,cross-platform. We have the luxury of dealing only with Linux systemshere, so we can make some practical suggestions most books ignore.1. JBoss is actually a combination of two distinct projects: JBoss, the EJB container and JMSserver, and Tomcat, the servlet and JSP server. You can install and use Tomcat alone. We won’tbother to do that in this book. We’ll install JBoss and use JBoss for everything. We are alsolazy typists who do not like to keep typing JBoss/Tomcat, so we’ll refer to it merely as JBossfrom now on. If you are deploying only servlets and JSP, then, by all means, download andinstall Tomcat only. It is part of the Apache Jakarta project.2. http://www.jboss.org/index.html3. http://www.jboss.org/downloads/