Java Web Services - Using Java in Service Oriented Architectures

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by: Tyler Jewell, David Chappell

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On-line Price: $68.00 (includes GST) Paperback package 276 20%Off Retail Price You save: $17.00 Please call us to check availability	Retail Price: $85.00 Publisher: O'REILLY,March 2002 Category: JAVA Level: I/A ISBN: 0596002696 ISBN13: 9780596002695
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Java Web Services shows you how to use SOAP to perform remote method calls and message passing; how to use WSDL to describe the interface to a web service or understand the interface of someone else's service; and how to use UDDI to advertise (publish) and look up services in each local or global registry. Java Web Services also discusses security issues, interoperability issues, integration with other Java enterprise technologies like EJB; the work being done on the JAXM and JAX-RPC packages, and integration with Microsoft's .NET services

      For many Java developers, web services appeared to come out of nowhere. Its advantages are clear: web services are platform-independent (like Java itself), language-agnostic (a clear advantage over Java RMI), can easily be tunneled through firewalls (an obvious benefit to anyone who has dealt with modern enterprise networks), object-oriented (we all know about that), and tends to be loosely coupled (allowing more flexible application development). But these advantages have been obscured by a cloud of hype and a proliferation of jargon that are difficult to penetrate. What are SOAP, UDDI, WSDL, and JAXM? To say nothing of JAXR, tModels, category bags, WSFL, and other friends? And assuming that you understand what they are, how do you do anything with them? Do they live up to their promises? Are they really the future of network computing, or a dead end?

  Java Web Services gives the experienced Java developer a way into the Web Services world. It helps you to understand what's going on, what the technologies mean and how they relate, and shows Java developers how to put them to use to solve real problems. You'll learn what's real and what isn't; what the technologies are really supposed to do, and how they do it. Java Web Services shows you how to use SOAP to perform remote method calls and message passing; how to use WSDL to describe the interface to a web service or understand the interface of someone else's service; and how to use UDDI to advertise (publish) and look up services in each local or global registry. Java Web Services also discusses security issues, interoperability issues, integration with other Java enterprise technologies like EJB; the work being done on the JAXM and

JAX-RPC packages, and integration with Microsoft's .NET services.

  The web services picture is still taking shape; there are many platforms and APIs to consider, and many conflicting claims from different marketing groups. And although web services are inherently language-independent, the fit between the fundamental principles on which Java and web services are based means that Java will almost certainly be the predominant language for web services development. If you're a Java developer and want to climb on the web services bandwagon, or if you only want to 'kick the tires' and find out what web services has to offer, you will find this book indispensable.

Table of Contents

Preface

  1. Welcome to Web Services

          What Are Web Services?

          Web Services Adoption Factors

          Web Services in a J2EE Environment

          What This Book Discusses

  2. Inside the Composite Computing Model

          Service-Oriented Architecture

          The P2P Model

  3. SOAP: The Cornerstone of Interoperability

          Simple

          Object

          Access

          Protocol

          Anatomy of a SOAP Message

          Sending and Receiving SOAP Messages

          The Apache SOAP Routing Service

          SOAP with Attachments

  4. SOAP-RPC, SOAP-Faults, and Misunderstandings

          SOAP-RPC

          Error Handling with SOAP Faults

          SOAP Intermediaries and Actors

  5. Web Services Description Language

          Introduction to WSDL

          Anatomy of a WSDL Document

          Best Practices, Makes Perfect

          Where Is All the Java?

  6. UDDI: Universal Description, Discovery, and Integration

          UDDI Overview

          UDDI Specifications and Java-Based APIs

          Programming UDDI

          Using WSDL Definitions with UDDI

  7. JAX-RPC and JAXM

          Java API for XML Messaging (JAXM)

          JAX-RPC

          SOAPElement API

          JAX-RPC Client Invocation Models

  8. J2EE and Web Services

          The SOAP-J2EE Way

          The Java Web Service (JWS) Standard

  9. Web Services Interoperability

          The Concept of Interoperability

          The Good, Bad, and Ugly of Interoperability

          Potential Interoperability Issues

          SOAPBuilders Interoperability

          Other Interoperability Resources

          Resources

  10. Web Services Security

          Incorporating Security Within XML

          XML Digital Signatures

          XML Encryption

          SOAP Security Extensions

          Further Reading

  Appendix. Credits

  Index