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Jakarta EE Application Development

Jakarta EE Application Development

By : David R. Heffelfinger
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Jakarta EE Application Development

Jakarta EE Application Development

5 (2)
By: David R. Heffelfinger

Overview of this book

Jakarta EE stands as a robust standard with multiple implementations, presenting developers with a versatile toolkit for building enterprise applications. However, despite the advantages of enterprise application development, vendor lock-in remains a concern for many developers, limiting flexibility and interoperability across diverse environments. This Jakarta EE application development guide addresses the challenge of vendor lock-in by offering comprehensive coverage of the major Jakarta EE APIs and goes beyond the basics to help you develop applications deployable on any Jakarta EE compliant runtime. This book introduces you to JSON Processing and JSON Binding and shows you how the Model API and the Streaming API are used to process JSON data. You’ll then explore additional Jakarta EE APIs, such as WebSocket and Messaging, for loosely coupled, asynchronous communication and discover ways to secure applications with the Jakarta EE Security API. Finally, you'll learn about Jakarta RESTful web service development and techniques to develop cloud-ready microservices in Jakarta EE. By the end of this book, you'll have developed the skills to craft secure, scalable, and cloud-native microservices that solve modern enterprise challenges.
Table of Contents (18 chapters)
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15
Chapter 15: Putting it All Together

Jakarta JSON Binding

Jakarta JSON Binding is a high-level API that allows us to almost seamlessly populate Java objects from JSON data, as well as easily generate JSON-formatted data from Java objects.

Populating Java objects from JSON with JSON Binding

A common programming task is to populate Java objects from JSON strings. It is such a common task that several libraries were created to transparently populate Java objects from JSON, freeing application developers from having to manually code this functionality. Several non-standard Java libraries that accomplish this task exist, such as Jackson (https://github.com/FasterXML/jackson), json-simple (https://code.google.com/archive/p/json-simple/), or Gson (https://github.com/google/gson). Jakarta EE includes a standard API providing this functionality, namely JSON Binding. In this section, we will cover how to transparently populate a Java object from a JSON string.

The following example shows a RESTful web service written using...

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