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Web Services Essentials
As a developer new to Web Services, how do you make sense of this emerging framework so you can start writing your own services? This text offers programmers both an introduction and a reference to XML Web services, first by explaining the foundations of these distributed services, and then by demonstrating quick ways to create services with open-source
Java tools. Web Services make it possible for diverse applications to discover each other and exchange data seamlessly via the Internet. For instance, programs written in Java and running on Solaris can find and call code written in C# that run on Windows XP, or programs written in Perl that run on Linux, without any concern about the details of how that service is implemented. A common set of Web Services is at the core of Microsoft's new .NET strategy, Sun Microsystems's Sun One Platform, and the W3C's XML Protocol Activity Group. In this book, author Ethan Cerami explores four key emerging technologies: XML Remote Procedure Calls (XML-RPC); SOAP - the foundation for most commercial Web services development; Universal Discovery Description and Integration (UDDI); and Web services description language (WSDL). For each of these topics, the book offers a quick overview, Java tutorials with sample code, samples of the XML documents underlying the service, and explanations of freely-available Java APIs. Cerami also includes a guide to the state of Web Services, pointers to open-source tools and a comprehensive glossary of terms.
Contents:
Preface Part I
Introduction to Web Services 1
Introduction Introduction to Web Services Web Service Architecture XML Messaging Service Description: WSDL Service Discovery: UDDI Service Transport Security Considerations All Together Now Standards and Coherence Part II
XML-RPC 2
XML-RPC Essentials XML-RPC Overview Why XML-RPC? XML-RPC Technical Overview Developing with XML-RPC Beyond Simple Calls Part III
SOAP 3
SOAP Essentials SOAP 101 The SOAP Message SOAP Encoding SOAP via HTTP SOAP and the W3C SOAP Implementations 4
Apache SOAP Quick Start Installing Apache SOAP Hello, SOAP! Deploying SOAP Services The TcpTunnelGui Tool Web Resources 5
Programming Apache SOAP Working with Arrays Working with JavaBeans Working with Literal XML Documents Handling SOAP Faults Maintaining Session State Part IV
WSDL 6
WSDL Essentials The WSDL Specification Basic WSDL Example: HelloService.wsdl WSDL Invocation Tools, Part I Basic WSDL Example: XMethods eBay Price Watcher Service WSDL Invocation Tools, Part II Automatically Generating WSDL Files XML Schema Data Typing Part V
UDDI 7
UDDI Essentials Introduction to UDDI Why UDDI? UDDI Technical Overview UDDI Data Model Searching UDDI Publishing to UDDI UDDI Implementations Web Resources 8
UDDI Inquiry API: Quick Reference The UDDI Inquiry API 9
UDDI 4J Getting Started Finding and Retrieving UDDI Data Publishing UDDI Data UDDI4J Quick Reference API Glossary Index
Brief Description:
This text offers programmers both an introduction and reference to XML Web services. It explains the foundations of these distributed services, demonstrates quick ways to create services with open-source Java tools, and explores four key emerging technologies: XML-RPC, SOAP, UDDI, and WSDL.
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