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jsonp: JSON-P Object-based JSON generation and Stream-based JSON consuming

Author: Rafael Benevides
Level: Beginner
Technologies: CDI, JSF, JSON-P
Summary: The jsonp quickstart demonstrates how to use the JSON-P API to produce object-based structures and then parse and consume them as stream-based JSON strings.
Target Product: JBoss EAP
Source: https://github.com/jbossas/eap-quickstarts/

What is it?

The jsonp quickstart creates a JSON string through object-based JSON generation and then parses and consumes it using stream-based JSON.

It shows how to use the JSON-P API to generate, parse, and consume JSON files.

System Requirements

The application this project produces is designed to be run on Red Hat JBoss Enterprise Application Platform 7.1 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 for JBoss EAP 7.1 to make sure you are configured correctly for testing the quickstarts.

Start the Server

  1. Open a command line and navigate to the root of the JBoss EAP directory.

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

     For Linux:   EAP7_HOME/bin/standalone.sh
 For Windows: EAP7_HOME\bin\standalone.bat

Build and Deploy the Quickstart

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

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

  3. Type this command to build and deploy the archive:

     mvn clean package wildfly:deploy

  4. This will deploy target/jsonp to the running instance of the server.

Access the Application

Access the running application in a browser at the following URL: http://localhost:8080/jsonp/

You are presented with a simple form that is pre-filled with personal data. You can change those values if you prefer.

Click on Generate JSON String from Personal Data button. The textarea below the button presents a JSON string representing the data and values from the completed form.

Note that the JSON string contains String, number, boolean and array values.

Now, click on Parse JSON String using Stream button. The textarea below the button shows the events generated from the parsed JSON string.

Undeploy the Archive

  1. Make sure you have started the JBoss EAP 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 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 JBoss EAP 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