Enterprise JavaBeans 3.0, 5th Edition

Chapter WORKBOOK 15. Exercises for Chapter 19

Chapter 19 of the EJB book explained the web services APIs available in EJB 3.0. The exercises in this chapter walk you through exposing and using an EJB as a web service.

Exercise 19.1: Exposing a Stateless Bean

This exercise exposes TravelAgentBean, which was developed in Chapter 4, as a web service using JAX-WS. To demonstrate interoperability, and to provide example material for the JAX-RPC sections, the client that calls TravelAgentBean will use the JAX-RPC API. We will begin by building and deploying the EJB-JAR and the Java EE application client JAR.

Start Up JBoss

Start up JBoss as described in Workbook 1.

Initialize the Database

You do not need to create any database tables because we will use the same persistence configuration in the exercises for Chapter 4, which will generate the tables automatically.

Build and Deploy the Example Programs

Perform the following steps:

1. Open a command prompt or shell terminal and change to the ex19_1 directory created by the extraction process.

2. Set the JAVA_HOME and JBOSS_HOME environment variables to point to where your JDK and JBoss 4.0 are installed. Examples:

   Windows:

   C:\workbook\ex19_1> set JAVA_HOME=C:\jdk1.5.0
   C:\workbook\ex19_1> set JBOSS_HOME=C:\jboss-4.0.x

   Unix:

   $ export JAVA_HOME=/usr/local/jdk1.5.0
   $ export JBOSS_HOME=/usr/local/jboss-4.0

3. Add ant to your execution path. Ant is the build utility.

   Windows:

   C:\workbook\ex19_1> set PATH=..\ant\bin;%PATH%

   Unix:

   $ export PATH=../ant/bin:$PATH

4. Perform the ...