Java Web Services

David A. Chappell, Tyler Jewell9780596002695, 0596002696

The advantages of web services are clear: they’re platform-independent, firewall-friendly, and inherently loosely coupled. However, these advantages are obscured by a cloud of hype and a proliferation of jargon. What are SOAP, UDDI, WSDL, and JAXM? What about JAXR, tModels, category bags, WSFL, and other terms? Do they live up to their promises? Are they really the future of network computing, or are they a dead end? Java Web Services gives the experienced Java developer a way into the web services world. This book helps you understand what’s going on, what the technologies mean and how they relate to one another, and how to use them. There are many emerging Java-based approaches available for working with web services. This book takes a broad look at several of these technologies and shows you how to put them to work in real life. 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 and interoperability issues, integration with other Java enterprise technologies such as EJB and JMS, the work being done on the JAXM and JAX-RPC packages, and interoperability 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. 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 learn what web services has to offer, you will find this book.

---

Table of contents :
Cover……Page 1
Table of Contents……Page 3
Who Should Read This Book?……Page 5
Organization……Page 6
Software and Versions……Page 7
Comments and Questions……Page 8
Acknowledgments……Page 9
1.1 What Are Web Services?……Page 10
1.2 Web Services Adoption Factors……Page 15
1.3 Web Services in a J2EE Environment……Page 18
1.4 What This Book Discusses……Page 19
2.1 Service-Oriented Architecture……Page 21
2.2 The P2P Model……Page 30
3.1 Simple……Page 32
3.3 Access……Page 33
3.5 Anatomy of a SOAP Message……Page 34
3.6 Sending and Receiving SOAP Messages……Page 38
3.7 The Apache SOAP Routing Service……Page 50
3.8 SOAP with Attachments……Page 54
4.1 SOAP-RPC……Page 59
4.2 Error Handling with SOAP Faults……Page 67
4.3 SOAP Intermediaries and Actors……Page 73
5.1 Introduction to WSDL……Page 76
5.2 Anatomy of a WSDL Document……Page 77
5.3 Best Practices, Makes Perfect……Page 98
5.4 Where Is All the Java?……Page 99
6.1 UDDI Overview……Page 100
6.2 UDDI Specifications and Java-Based APIs……Page 103
6.3 Programming UDDI……Page 105
6.4 Using WSDL Definitions with UDDI……Page 139
7.1 Java API for XML Messaging (JAXM)……Page 142
7.2 JAX-RPC……Page 161
7.3 SOAPElement API……Page 165
7.4 JAX-RPC Client Invocation Models……Page 166
8.1 The SOAP-J2EE Way……Page 173
8.2 The Java Web Service (JWS) Standard……Page 187
9.2 The Good, Bad, and Ugly of Interoperability……Page 190
9.3 Potential Interoperability Issues……Page 202
9.4 SOAPBuilders Interoperability……Page 204
9.5 Other Interoperability Resources……Page 227
9.6 Resources……Page 229
10.1 Incorporating Security Within XML……Page 231
10.2 XML Digital Signatures……Page 232
10.3 XML Encryption……Page 237
10.4 SOAP Security Extensions……Page 243
10.5 Further Reading……Page 245
A. Credits……Page 247
Colophon……Page 249