The temperature-converter quickstart does temperature conversion using an EJB Stateless Session Bean (SLSB), CDI, and a JSF front-end client.

What is it?

The temperature-converter example demonstrates the use of an EJB Stateless Session Bean (SLSB) and CDI, accessed using a JSF, and deployed to WildFly Application Server using a WAR archive.

The application does the following:

  1. The User Interface is a JSF page that asks for a temperature and a scale (Fahrenheit or Celsius).

  2. When you click on Convert, the temperature string is passed to the TemperatureConverter controller (managed) bean.

  3. The managed bean then invokes the convert() method of the injected TemperatureConvertEJB (notice the field annotated with @Inject).

  4. The response from TemperatureConvertEJB is stored in the temperature field of the managed bean.

  5. The managed bean is annotated as @SessionScoped, so the same managed bean instance is used for the entire session.

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 temperature-converter/target/temperature-converter.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/temperature-converter/.

You will be presented with a simple form for temperature conversion.

  1. Optionally, Select a scale: Celsius or Fahrenheit.

  2. Enter a temperature.

  3. Press the Convert button to see the results.

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.

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