Book Image

Developing Middleware in Java EE 8

Book Image

Developing Middleware in Java EE 8

Overview of this book

Middleware is the infrastructure in software based applications that enables businesses to solve problems, operate more efficiently, and make money. As the use of middleware extends beyond a single application, the importance of having it written by experts increases substantially. This book will help you become an expert in developing middleware for a variety of applications. The book starts off by exploring the latest Java EE 8 APIs with newer features and managing dependencies with CDI 2.0. You will learn to implement object-to-relational mapping using JPA 2.1 and validate data using bean validation. You will also work with different types of EJB to develop business logic, and with design RESTful APIs by utilizing different HTTP methods and activating JAX-RS features in enterprise applications. You will learn to secure your middleware with Java Security 1.0 and implement various authentication techniques, such as OAuth authentication. In the concluding chapters, you will use various test technologies, such as JUnit and Mockito, to test applications, and Docker to deploy your enterprise applications. By the end of the book, you will be proficient in developing robust, effective, and distributed middleware for your business.
Table of Contents (18 chapters)
Title Page
Copyright and Credits
Dedication
Packt Upsell
Contributors
Preface
Index

Handling JSON


JSON is an open, standard, language-independent, text-based data representation format for exchanging data between applications. JSON stands for JavaScript object notation, and as the name suggests, it's the native representation for objects in the JavaScript language. As JavaScript is the primary scripting language for web browsers, JSON is the best choice for sending and delivering data to and from web browsers, as its nativeness gives the best performance for web browsers when parsing and generating data in this format. Moreover, JSON is widely supported by most programming languages, CLI utilities, integration middleware, and so on. Therefore, the JSON format is very widely used in RESTful web APIs.

In the following sections, we are going to learn how to use JSON within our RESTful services.

Enabling Moxy

Moxy is the default and preferred way of supporting JSON with Jersey. Once you add the Moxy dependency to your classpath, Jersey automatically discovers it and adds support...