Search icon CANCEL
Arrow left icon
Explore Products
Best Sellers
New Releases
Books
Videos
Audiobooks
Learning Hub
Conferences
Free Learning
Arrow right icon
Arrow up icon
GO TO TOP
RESTful Java Web Services

You're reading from   RESTful Java Web Services A pragmatic guide to designing and building RESTful APIs using Java

Arrow left icon
Product type Paperback
Published in Nov 2017
Publisher
ISBN-13 9781788294041
Length 420 pages
Edition 3rd Edition
Languages
Tools
Arrow right icon
Author (1):
Arrow left icon
Balachandar Bogunuva Mohanram Balachandar Bogunuva Mohanram
Author Profile Icon Balachandar Bogunuva Mohanram
Balachandar Bogunuva Mohanram
Arrow right icon
View More author details
Toc

Table of Contents (11) Chapters Close

Preface 1. Introducing the REST Architectural Style 2. Java APIs for JSON Processing FREE CHAPTER 3. Introducing the JAX-RS API 4. Advanced Features in the JAX-RS APIs 5. Introducing JAX-RS Implementation Framework Extensions 6. Securing RESTful Web Services 7. Description and Discovery of RESTful Web Services 8. RESTful API Design Guidelines 9. The Role of RESTful APIs in Emerging Technologies 10. Useful Features and Techniques

Exception handling in JAX-RS

Exceptions in Java are a way to tell the client that an abnormal condition has occurred while executing specific statements in the code. In this section, you will see how a REST resource method handles exceptions.

Reporting errors using ResponseBuilder

The Response instance can hold metadata, such as the HTTP status code, along with the entity body. The REST resource method can return the Response object to report back on the status of the REST API call to the caller.

For example, the following resource method returns HTTP 404 Not Found (represented by the following Enum constant: Response.Status.NOT_FOUND) if the department entity object is not found in the data store:

@DELETE 
@Path("departments...
lock icon The rest of the chapter is locked
Register for a free Packt account to unlock a world of extra content!
A free Packt account unlocks extra newsletters, articles, discounted offers, and much more. Start advancing your knowledge today.
Unlock this book and the full library FREE for 7 days
Get unlimited access to 7000+ expert-authored eBooks and videos courses covering every tech area you can think of
Renews at €18.99/month. Cancel anytime