# ejb-in-ear: Deployment of an EAR Containing a JSF WAR and EJB JAR

Paul Robinson

> The `ejb-in-ear` quickstart demonstrates how to deploy an EAR archive that contains a JSF WAR and an EJB JAR.

## What is it?

The `ejb-in-ear` quickstart demonstrates the deployment of an EAR artifact to WildFly Application Server. The EAR contains a JSF WAR and an EJB JAR.

This example consists of the following Maven projects, each with a shared parent.

Project | Description
--- | ---
`ejb` | This project contains the EJB code and can be built independently to produce the JAR archive.
`web` | This project contains the JSF pages and the managed bean.
`ear` | This project builds the EAR artifact and pulls in the EJB and web artifacts.

The root `pom.xml` builds each of the subprojects in the above order and deploys the EAR archive to the server.

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

1. A JSF page asks for a 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 to the managed bean. Notice the field is 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 install wildfly:deploy

This deploys the `ejb-in-ear/ear/target/ejb-in-ear.ear` 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-ear/.

Enter a name in the input field and click the Greet button to see the response.

## 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 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.

For this quickstart, follow the special instructions to build Quickstarts Containing an EAR.

1. Right-click on the ejb-in-ear-ear subproject, and choose Run As → Run on Server.

2. Choose the server and click Finish.

3. This starts the server, deploys the application, and opens a browser window that accesses the running application.

4. To undeploy the project, right-click on the ejb-in-ear-ear project and choose Run As → Maven build. Enter `wildfly:undeploy` for the Goals and click Run.

## 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