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ejb-in-war: Deployment of a WAR Containing an EJB

Author: Paul Robinson
Level: Intermediate
Technologies: EJB, JSF, WAR
Summary: The ejb-in-war quickstart demonstrates how to package an EJB bean in a WAR archive and deploy it to WildFly. Arquillian tests are also provided.
Target Project: WildFly Source: https://github.com/wildfly/quickstart/

What is it?

The ejb-in-war quickstart demonstrates the deployment of an EJB bean bundled in a WAR archive for deployment to Red Hat JBoss Enterprise Application Platform. The project also includes a set of Arquillian tests for the managed bean and EJB.

The example follows the common "Hello World" pattern. These are the steps that occur:

  1. A JSF page asks the user for their name.
  2. On clicking submit, the name is sent to a managed bean named Greeter.
  3. On setting the name, the Greeter invokes the GreeterEJB, which was injected into the managed bean. Notice the field annotated with @EJB.
  4. The response from invoking the GreeterEJB is stored in a field message of the managed bean.
  5. The managed bean is annotated as @SessionScoped, so the same managed bean instance is used for the entire session. This ensures that the message is available when the page reloads and is displayed to the user.

System requirements

The application this project produces is designed to be run on Red Hat JBoss Enterprise Application Platform 7 or later.

All you need to build this project is Java 8.0 (Java SDK 1.8) or later and Maven 3.1.1 or later. See Configure Maven for WildFly 10 to make sure you are configured correctly for testing the quickstarts.

Use of WILDFLY_HOME

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

Start the WildFly Server

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

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

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

Build and Deploy the Quickstart

  1. Make sure you have started the WildFly 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/wildfly-ejb-in-war.war to the running instance of the server.

Access the application

The application will be running at the following URL http://localhost:8080/wildfly-ejb-in-war.

Undeploy the Archive

  1. Make sure you have started the WildFly 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

Run the Arquillian Tests

This quickstart provides Arquillian tests. By default, these tests are configured to be skipped as Arquillian tests require the use of a container.

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

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

  3. Type the following command to run the test goal with the following profile activated:

     mvn clean test -Parq-wildfly-remote

Investigate the Console Output

JUnit will present you test report summary:

Tests run: 2, Failures: 0, Errors: 0, Skipped: 0

If you are interested in more details, check target/surefire-reports directory. You can check console output to verify that Arquillian has really used the real application server. Search for lines similar to the following ones in the server output log:

INFO  [org.jboss.as.server.deployment] (MSC service thread 1-3) WFLYSRV0027: Starting deployment of "test.war" (runtime-name: "test.war")
...
INFO  [org.jboss.as.server] (management-handler-thread - 29) WFLYSRV0010: Deployed "test.war" (runtime-name : "test.war")
...
 INFO  [org.jboss.as.server.deployment] (MSC service thread 1-3) WFLYSRV0028: Stopped deployment test.war (runtime-name: test.war) in 12ms
...
INFO  [org.jboss.as.server] (management-handler-thread - 30) WFLYSRV0009: Undeployed "test.war" (runtime-name: "test.war")

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 WildFly 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