Use this guide to master the XML metalanguage and JSON data format along with significant Java APIs for parsing and creating XML and JSON documents from the Java language. New in this edition is coverage of Jackson (a JSON processor for Java) and Oracle’s own Java API for JSON processing (JSON-P), which is a JSON processing API for Java EE that also can be used with Java SE. This new edition of Java XML and JSON also expands coverage of DOM and XSLT to include additional API content and useful examples.

All examples in this book have been tested under Java 11. In some cases, source code has been simplified to use Java 11’s var language feature. The first six chapters focus on XML along with the SAX, DOM, StAX, XPath, and XSLT APIs. The remaining six chapters focus on JSON along with the mJson, GSON, JsonPath, Jackson, and JSON-P APIs. Each chapter ends with select exercises designed to challenge your grasp of the chapter's content. An appendix provides the answers to these exercises.

What You'll Learn

• Master the XML language
• Create, validate, parse, and transform XML documents
• Apply Java’s SAX, DOM, StAX, XPath, and XSLT APIs
• Master the JSON format for serializing and transmitting data
• Code against third-party APIs such as Jackson, mJson, Gson, JsonPath
• Master Oracle’s JSON-P API in a Java SE context

Who This Book Is For

Intermediate and advanced Java programmers who are developing applications that must access data stored in XML or JSON documents. The book also targets developers wanting to understand the XML language and JSON data format.

Table of Contents

Chapter 1: Introducing XML

Chapter 2: Parsing XML Documents with SAX

Chapter 3: Parsing and Creating XML Documents with DOM

Chapter 4: Parsing and Creating XML Documents with StAX

Chapter 5: Selecting Nodes with XPath

Chapter 6: Transforming XML Documents with XSLT

Chapter 7: Introducing JSON

Chapter 8: Parsing and Creating JSON Objects with mJson

Chapter 9: Parsing and Creating JSON Objects with Gson

Chapter 10: Extracting JSON Values with JsonPath

Chapter 11: Processing JSON with Jackson

Chapter 12: Processing JSON with JSON-P

About the Author

Jeff Friesen is a freelance teacher and software developer with an emphasis on Java. In addition to authoring Java I/O, NIO and NIO.2 (Apress), Java Threads and the Concurrency Utilities (Apress), and the first edition of this book, Jeff has written numerous articles on Java and other technologies (such as Android) for JavaWorld (JavaWorld.com), informIT (InformIT.com), Java.net, SitePoint (SitePoint.com), and other web sites.