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

Contract first development with JAX-WS


The primary purpose of JAX-WS is to allow the Java developers to develop web services with the convenience provided by the Java language. However, there may be situations where the contract or WSDL has already been designed and you are forced to use that WSDL. In this section, you will see how an existing WSDL document can be used for developing a JAX-WS service or client. You will be using the wsimport tool that is shipped with the JDK.

The Java artifacts created using the wsimport tool are:

  • Service Endpoint Interface (SEI)

  • Service class

  • Exception class that is mapped from the wsdl:fault class (if any)

  • JAXB generated type values (that are Java classes mapped from XML schema types)

This is what you will see if you run wsimport -help:

Usage: wsimport [options] <WSDL_URI>
where [options] include:-b <path>     specify jaxws/jaxb binding files or additional schemas (Each         <path> must have its own -b)-B<jaxbOption>   Pass this option...