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greeter: Demonstrates CDI, JPA, JTA, EJB, and JSF

Author: Pete Muir
Level: Beginner
Technologies: CDI, JSF, JPA, EJB, JTA
Summary: The greeter quickstart demonstrates the use of CDI, JPA, JTA, EJB and JSF in JBoss EAP.
Target Product: JBoss EAP
Source: https://github.com/jbossas/eap-quickstarts/

What is it?

The greeter quickstart demonstrates the use of CDI, JPA, JTA, EJB and JSF in Red Hat JBoss Enterprise Application Platform.

When you deploy this example, two users are automatically created for you: emuster and jdoe. This data is located in the src/main/resources/import.sql file.

To test this example:

  1. Enter a name in the username field and click on Greet!.
  2. If you enter a username that is not in the database, you get a message No such user exists!.
  3. If you enter a valid username, you get a message Hello, followed by the user's first and last name.
  4. To create a new user, click the Add a new user link. Enter the username, first name, and last name and then click Add User. The user is added and a message displays the new user id number.
  5. Click on the Greet a user! link to return to the Greet! page.

Note: This quickstart uses the H2 database included with Red Hat JBoss Enterprise Application Platform 7.1. It is a lightweight, relational example datasource that is used for examples only. It is not robust or scalable, is not supported, and should NOT be used in a production environment!

Note: This quickstart uses a *-ds.xml datasource configuration file for convenience and ease of database configuration. These files are deprecated in JBoss EAP and should not be used in a production environment. Instead, you should configure the datasource using the Management CLI or Management Console. Datasource configuration is documented in the Configuration Guide for Red Hat JBoss Enterprise Application Platform.

System Requirements

The application this project produces is designed to be run on Red Hat JBoss Enterprise Application Platform 7.1 or later.

All you need to build this project is Java 8.0 (Java SDK 1.8) or later and Maven 3.3.1 or later. See Configure Maven for JBoss EAP 7.1 to make sure you are configured correctly for testing the quickstarts.

Use of EAP7_HOME

In the following instructions, replace EAP7_HOME with the actual path to your JBoss EAP installation. The installation path is described in detail here: Use of EAP7_HOME and JBOSS_HOME Variables.

Start the Server

  1. Open a command prompt and navigate to the root of the JBoss EAP directory.

  2. The following shows the command line to start the server:

     For Linux:   EAP7_HOME/bin/standalone.sh
 For Windows: EAP7_HOME\bin\standalone.bat

Build and Deploy the Quickstart

  1. Make sure you have started the JBoss EAP server as described above.

  2. Open a command prompt and navigate to the root directory of this quickstart.

  3. Type this command to build and deploy the archive:

     mvn clean install wildfly:deploy

  4. This will deploy target/greeter.war to the running instance of the server.

Access the Application

The application will be running at the following URL: http://localhost:8080/greeter/.

Undeploy the Archive

  1. Make sure you have started the JBoss EAP server as described above.

  2. Open a command prompt and navigate to the root directory of this quickstart.

  3. When you are finished testing, type this command to undeploy the archive:

     mvn wildfly:undeploy

Server Log: Expected Warnings and Errors

Note: You will see the following warnings in the server log. You can ignore these warnings.

WFLYJCA0091: -ds.xml file deployments are deprecated. Support may be removed in a future version.

HHH000431: Unable to determine H2 database version, certain features may not work

Run the Quickstart in Red Hat JBoss Developer Studio or Eclipse

You can also start the server and deploy the quickstarts or run the Arquillian tests from Eclipse using JBoss tools. For general information about how to import a quickstart, add a JBoss EAP server, and build and deploy a quickstart, see Use JBoss Developer Studio or Eclipse to Run the Quickstarts.

Debug the Application

If you want to debug the source code of any library in the project, run the following command to pull the source into your local repository. The IDE should then detect it.

    mvn dependency:sources