Book Image

Apache Axis2 Web Services, 2nd Edition

By : Deepal Jayasinghe, Afkham Azeez
Book Image

Apache Axis2 Web Services, 2nd Edition

By: Deepal Jayasinghe, Afkham Azeez

Overview of this book

<p>Web services are gaining popularity and have become one of the major techniques for application integration. Due to the flexibility and advantages of using web services, you want to enable Web service support to your applications. This book is your gateway to learning all you need to know about the Apache Axis2 web service framework and its hands on implementation. <br /><br />Apache Axis2 Web Services, 2nd Edition is your comprehensive guide to implementing this incredibly powerful framework in practice. It gives you precisely what you need to know to develop a detailed practical understanding of this popular, modular and reliable web service framework.<br /><br />This book starts with a short and relevant introduction about the Axis2 1.5 framework and then plunges you straight into its architectural model.</p> <p>Learn to use and develop your own modules. Write a services.xml file so efficiently that you'll be creating more complex applications (rather than just POJOs) in no time.</p> <p>Learn how straightforward it really is to turn a Java class into a web service in Axis2. Experiment with different types of sessions in Axis2. Learn different patterns of Enterprise deployment. Ensure reliability in your web service - a major concern in most enterprise applications - with minimum impact on performance.<br /><br />This book will journey you through all this and more, giving you exactly what you need to learn Axis2 1.5 in the easiest way possible and create secure, reliable, and easy-to-use web services efficiently and systematically.</p>
Table of Contents (22 chapters)
Apache Axis2 Web Services
Credits
About the Authors
About the Reviewers
www.PacktPub.com
Preface
15
Building a Secure Reliable Web Service
Index

Chapter 11. Developing JAX-WS Web Services

Java API for XML-based web services is a popular standard, targeting Java developers who write web services and web service clients. The conventional contract first approach, which consists of defining the web service contract in a WSDL and then generating the appropriate code from those WSDLs, is not the most natural way of programming for Java developers. The JAX-WS specifications allow you to write a regular Java code and annotate the code appropriately, in order to make them into web services. Therefore, JAX-WS is a code first approach for developing web services and clients in Java. The ease of development is achieved through writing everything as Java classes and not having to write any specific deployment descriptor file such as services.xml files utilized by Axis2 AAR services. Older Java Web Service specifications such as JAX-RPC required the web service classes to implement a specific interface. With JAX-WS, there is no such restriction...