Package the app

Quarkus apps can be packaged as an executable JAR file or a native binary. We’ll cover native binaries later, so for now, let’s package as an executable JAR.

  1. In the terminal , run the following Maven command (not in Quarkus Dev Mode):

    mvn clean package -DskipTests

  2. This produces an executable jar file in the target/quarkus-app/ directory:

    jar
    quarkus-run.jar - being an executable fast jar. Be aware that it’s not an über-jar as the dependencies are copied into the target/lib directory.

Run the executable JAR

  1. Run the following command in the terminal:

    java -Dquarkus.http.port=8081 -jar target/quarkus-app/quarkus-run.jar

    We use -Dquarkus.http.port=8081 to avoid conflicting with port 8080 used for Live Coding mode

  2. With the app running, open a new terminal window, and ensure the app is running by executing a curl command:

    curl http://localhost:8081/hello

  3. You should see:

    Hola from Quarkus REST

Cleanup

Go back to the terminal in which you ran the app with java -jar and stop the app by pressing CTRL+C. Be sure not to close the "Start Live Coding" terminal!

Congratulations!

You’ve learnt how to build a basic app, package it as an executable JAR and start it up very quickly. The JAR file can be used like any other executable JAR file (e.g. running it as-is, packaging as a Linux container, etc.)

In the next step we’ll inject a custom bean to showcase Quarkus' CDI capabilities.