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

Paul Robinson

> 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.

## What is it?

The `ejb-in-war` quickstart demonstrates the deployment of an EJB bean bundled in a WAR archive for deployment to WildFly Application Server. The project also includes a set of Arquillian tests for the managed bean and EJB.

The example follows the common "Hello World" pattern using the following workflow.

1. A JSF page asks for the user name.

2. On clicking Greet, 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 WildFly Application Server 13 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 to Build and Deploy the Quickstarts 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 Standalone Server

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

2. Start the WildFly server with the default profile by typing the following command.

       $ WILDFLY_HOME/bin/standalone.sh

   Note | For Windows, use the `WILDFLY_HOME\bin\standalone.bat` script.

## Build and Deploy the Quickstart

1. Make sure you start the WildFly server as described above.

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

3. Type the following command to build the artifacts.

       $ mvn clean package wildfly:deploy

This deploys the `ejb-in-war/target/ejb-in-war.war` to the running instance of the server.

You should see a message in the server log indicating that the archive deployed successfully.

## Access the Application

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

## Undeploy the Quickstart

When you are finished testing the quickstart, follow these steps to undeploy the archive.

1. Make sure you start the WildFly server as described above.

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

3. 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 since Arquillian tests require the use of a container.

Note | The Arquillian tests deploy the application, so make sure you undeploy the quickstart before you begin.

Follow these steps to run the tests.

1. Start the WildFly server as described above.

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

3. Type the following command to run the `verify` goal with the `arq-remote` profile activated.

       $ mvn clean verify -Parq-remote

Note | You can also let Arquillian manage the WildFly server by using the `arq-managed` profile, meaning the tests will start the server for you. This profile requires that you provide Arquillian with the location of the WildFly server, either by setting the `JBOSS_HOME` environment variable, or by setting the `jbossHome` property in the `arquillian.xml` file. For more information, see Run the Arquillian Tests.

## Investigate the Console Output

When you run the Arquillian tests, Maven prints summary of the performed tests to the console. You should see the following results.

    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 in Red Hat JBoss Developer Studio or 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