Programming .NET Web Services

XML web services are the fundamental building blocks in the move to distributed computing on the Internet. Applications are constructed using multiple XML web services from various sources that work together regardless of where they reside or how they were implemented. This comprehensive tutorial teaches programmers the skills they need to develop XML web services hosted on the new Microsoft .NET platform. Programming .NET Web Services also shows readers how to consume such services on both Microsoft and non-Windows clients, and how to weave them into well-designed and scalable applications.

is President of ProseTech, a software documentation consultancy, and a project manager at VoiceIQ (http://www.voiceiq.com/), a provider of software for interactive voice-enabled applications and services. Matthew is a coauthor of the ASP.NET in a Nutshell (O'Reilly), and a contributor to the C# in a Nutshell (O'Reilly) API reference.

Preface

ix

Understanding Web Services

1

(19)

Why Web Services?

1

(3)

The Origin of Web Services

4

(6)

The .NET Web Service Architecture

10

(6)

Competing Web Service Technologies

16

(1)

Other Technologies

17

(3)

Creating ASP.NET Web Services

20

(34)

Creating a Web Service: ``Hello, World''

20

(17)

The Web Service Attribute

37

(2)

The Web Method Attribute

39

(6)

Deploying a Web Service

45

(5)

Using the .NET Compilers

50

(4)

Consuming Web Services

54

(47)

The Web Service Consumer Model

54

(3)

Accessing Web Services: HTTP

57

(11)

Exposing Web Services: WSDL

68

(10)

Calling Web Services: the Client Proxy

78

(1)

Creating a Client Proxy

79

(8)

Working with the Proxy Class

87

(6)

Consuming a Web Site Using a Screen Scraper Service

93

(8)

Working with Data Types

101

(34)

Working with Simple Data Types

101

(9)

Working with Complex Data Types

110

(9)

Using Complex Data Types as Arguments

119

(6)

Passing Data with DataSets

125

(7)

Using Binary Data

132

(3)

Managing State

135

(36)

The Great State Debate

135

(7)

State Management Scenarios

142

(3)

ASP.NET's Session State Facility

145

(3)

Session State Configuration

148

(4)

Example: Managing Session State

152

(5)

Application State

157

(1)

Custom Cookies

158

(2)

Stateless Web Services and Tickets

160

(1)

SOAP Headers

161

(10)

Asynchronous Services

171

(26)

Asynchronous Consumption

171

(14)

Asynchronous Services

185

(12)

Caching and Profiling

197

(33)

ASP.NET Caching

197

(3)

Simple Output Caching

200

(5)

Data Caching

205

(8)

Cache Dependencies

213

(6)

Replacing Stateful Design with Caching

219

(5)

Profiling Your Web Service

224

(6)

Debugging, Tracing, and Logging

230

(32)

Debugging in Visual Studio .NET

230

(3)

Using Exceptions

233

(6)

Logging Errors with .NET

239

(8)

SOAP Extensions

247

(7)

Advanced SOAP Extensions

254

(8)

Security and Authentication

262

(37)

Potential Vulnerabilities

262

(2)

Web Service Authentication

264

(1)

IIS Security Features

265

(5)

ASP.NET Security

270

(10)

Programmatic Security

280

(9)

Custom Authentication Techniques

289

(8)

Process Security

297

(2)

Publishing and Discovery

299

(35)

Publishing

299

(1)

UDDI

300

(2)

UDDI Business Registries

302

(3)

Registering a Business Entity

305

(4)

WSDL and UDDI

309

(12)

Visual Studio .NET and UDDI

321

(1)

UDDI Messaging

322

(4)

UDDI Access with .NET

326

(4)

The WS-Inspection Alternative

330

(2)

Customizing the IE Test Page

332

(2)

Interoperability

334

(15)

State of the Specifications

334

(2)

Implementation Differences

336

(4)

SOAP Interoperability

340

(2)

WSDL Interoperability

342

(1)

HTTP Interoperability and M-Post

343

(1)

Known Interoperability Problems

343

(3)

Maximizing Interoperability

346

(3)

Namespace Quick Reference

349

(27)

Web Service Technologies

376

(7)

Index

383

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Programming .NET Web Services

Summary

Author Biography

Table of Contents

Supplemental Materials