ASP组件开发权威指南（第二版）

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"ASP组件开发经典教程" 本教程是《Developing ASP Components》的英文第二版，由知名出版社O'Relly出版，作者为Shelley Powers。这本书共有831页，专注于讲解如何开发ASP（Active Server Pages）组件，是ASP开发者的重要参考资料。在ASP组件开发中，你将学习到如何利用微软的技术如JScript和Visual Basic来构建高效、可复用的服务器端组件。这些组件可以极大地增强Web应用程序的功能和性能，尤其是在大型企业级应用中。本书的第二版可能涵盖了自第一版以来ASP技术的新发展和改进，包括可能对ActiveX、Win32 API以及Microsoft的其他技术的更新内容。内容可能包括但不限于以下几个关键知识点： 1. **ASP基础**：了解ASP的工作原理，包括脚本语言的使用（如JScript和VBScript）、响应处理流程、服务器端脚本的概念等。 2. **组件创建**：学习如何使用Visual Basic或C++创建COM（Component Object Model）组件，并将其集成到ASP环境中。 3. **ASP组件设计模式**：探讨不同类型的组件设计模式，如状态管理、事务处理、错误处理和安全性控制。 4. **IIS（Internet Information Services）集成**：了解如何配置IIS以支持ASP组件，以及服务器配置对组件性能的影响。 5. **Active Directory集成**：学习如何与Microsoft的目录服务Active Directory进行交互，实现用户验证和权限管理。 6. **性能优化**：探讨如何通过优化组件代码和服务器设置来提高ASP应用的性能。 7. **调试与测试**：学习使用各种工具进行ASP组件的调试和测试，确保组件的稳定性和可靠性。 8. **部署与管理**：涵盖组件的部署策略，包括版本控制、更新机制以及在多服务器环境中的部署。 9. **案例研究**：通过实际的项目案例，展示ASP组件在实际工作场景中的应用和问题解决。 10. **最新技术动态**：第二版可能包含了ASP技术的新发展，比如可能涉及ASP.NET的早期概念，尽管ASP.NET是后来发布的一个独立框架。本书作为一本专业教程，适合有一定ASP和Web开发经验的读者深入学习，对于希望提升ASP组件开发技能的开发者来说，是一本不可多得的参考书籍。通过学习，读者不仅可以掌握组件开发的基本技能，还能了解到ASP组件在实际开发中的最佳实践和潜在挑战。

Preface xiii

This is the Title of the Book, eMatter Edition

Following this introduction, the book then covers component development using

Visual Basic and Visual C++. In the case of Visual Basic, chapters include access-

ing the intrinsic ASP objects from a Visual Basic component, accessing data using

ADO, incorporating messaging with CDO for Windows 2000, using MSMQ, and

using components to generate XML. The Visual C++ chapters discuss some of this

same material (accessing ASP intrinsics, data access using ADO, using MSMQ),

along with persistence using the Microsoft Foundation Classes (MFC) and the

ActiveX Template Library (ATL). But if your organization is like so many others

nowadays, your group is probably not using just one tool in its web development

efforts. It’s just not that unusual for shops to program in Visual C++ and Java,

Visual Basic and Delphi, or Visual Basic and Perl. Rather than focus this book on

one or two languages, I picked the tools/languages most likely to be used. Conse-

quently, separate chapters examine issues in component development using Java,

Delphi, and Perl. Each of these chapters is based on the earlier chapters that cover

component development using Visual Basic and explores techniques and issues in

component development using that language or tool.

Who This Book Is For

This book is geared to the developer who has worked with one of the target lan-

guages/tools but either has not created COM objects before or has not worked

with developing ASP components or ASP applications. I hope that the book pro-

vides enough of an introduction to COM and threads to make you feel more com-

fortable with these topics if you haven’t worked with them before and to provide a

good review if you have. The book does not provide an exhaustive overview of

COM+ and developing COM+ components but does provide, again, enough of an

overview so you feel comfortable working as a developer in a COM+ environ-

ment.

The book also provides a comprehensive overview of the ASP component envi-

ronment, including using tools and wizards in each language/tool to assist in creat-

ing the components, and covering every aspect of accessing the built-in ASP

components essential for your development effort. In addition, the book also pro-

vides good coverage of data access using ADO, messaging using CDO for Win-

dows 2000, and message queuing using MSMQ.

How This Book Is Structured

Informally, this book is divided into four parts. The first part introduces ASP com-

ponent development and covers topics that are of concern to all component devel-

opers, regardless of the language they use. This part consists of six chapters.

Chapter 1, Writing ASP Components, examines some of the reasons that you'd

,ch00.17820 Page xiii Thursday, February 22, 2001 1:27 PM

xiv Preface

This is the Title of the Book, eMatter Edition

want to develop an ASP component rather than rely on a simple ASP script. It also

mentions some of the technologies (COM+ services, ActiveX Data Objects, and

Active Directory, to name just three) that you can draw on in developing your

components. Chapter 2, Setting Up the ASP Development Environment, examines

how to set up your development environment to insure that you can develop with

maximum productivity and that your testing doesn't impact on a production sys-

tem. In addition, the chapter covers programmatic administration of IIS using

Active Directory and the IIS Admin Objects. Chapter 3, ASP Components and COM,

examines Microsoft's Component Object Model (COM), which provides the basis

for developing all types of components. Chapter 4, ASP Components, Threads, and

Contexts, provides developers with the information that they need to know about

threading models when developing ASP components, and particularly when

accessing global data from the ASP Application object. It also examines the notion

of context (a grouping of objects that share the same requirements), an under-

standing of which is essential to working successfully with COM+. Chapter 5,

COM+ Services and ASP Components and Applications, examines the new inter-

faces supported by COM+, shows how components written to take advantage of

COM+'s predecessor, Microsoft Transaction Server (MTS), can be ported to COM+,

and examines range of services provided by COM+. Chapter 6, ASP Interaction:

Scripting and ASP Components, covers an often-neglected component develop-

ment topic: your component may be accessed by any of a number of scripting lan-

guages—VBScript, JScript, PerlScript, Python, Rexx, etc.—and communication

between script and component is often not as seamless as you'd like. The chapter

looks at what you can do when developing your ASP component to insure that it

can work with as many scripting languages as possible.

The second portion of the book, which consists of seven chapters, focuses on

component development using Visual Basic. In addition, its chapters serve as a

kind of model for how to develop ASP components if you're using a high-level

language like Visual Basic that masks much of the complexity of COM and COM+.

Chapter 7, Creating a Simple Visual Basic ASP Component, introduces Visual Basic

as a tool for ASP component development and examines how to access the ASP

object model from Visual Basic. Chapter 8, Creating ASP/ADO Components, looks

at accessing data in heterogeneous sources using ActiveX Data Objects (ADO).

Chapter 9, Creating an ASP Middle Tier with ADO, discusses component design for

multi-tier applications, focusing particularly on the degree of separation between

the middle tier and the client tier. The remaining chapters focus on individual

technologies that developers frequently use when creating ASP Components.

These include the following:

• XML is discussed in Chapter 10, Server-Side XML Through VB ASP Components.

• Collaborative Data Objects (CDO) for Windows 2000 is covered in Chapter 11,

Take a Message: Accessing CDO from ASP Components.

,ch00.17820 Page xiv Thursday, February 22, 2001 1:27 PM

Preface xv

This is the Title of the Book, eMatter Edition

• Active Directory is discussed in Chapter 12, Working with Active Directory

from ASP Applications.

• Microsoft Message Queue (MSMQ) is examined in Chapter 13, Working with

MSMQ Components.

The third portion of the book, consisting of six chapters, treats component devel-

opment using Visual C++. In addition, its chapters serve as a kind of model for

ASP component development using a high-level language like Visual C++ that

exposes much of the complexity of COM and COM+. Chapter 14, Creating C++

ASP Components, introduces Visual C++ as a tool for ASP component develop-

ment and examines how to access the ASP intrinsic objects from a Visual C++

component. Chapter 15, Adding Data Access to C++ Components with ADO, exam-

ines accessing data in heterogeneous sources using ADO. The next three chapters

cover the following individual technologies that are often used in developing com-

ponents for IIS 5.0:

• Collaborative Data Objects (CDO) for Windows 2000 is covered in Chapter 16,

The CDO Interfaces from C++ Components.

• Active Directory is discussed in Chapter 17, Accessing Active Directory from

C++ Components.

• Microsoft Message Queue (MSMQ) is examined in Chapter 18, Accessing

MSMQ from C++ ASP Components.

Finally, coverage of Visual C++ and ASP component development ends with

Chapter 19, Persistence with ASP Components Using ATL and MFC, which dis-

cusses ways in which your component can save its data to the filesystem.

The final portion of this book features individual chapters on component develop-

ment using the following programming languages and environments:

• Java is covered in Chapter 20, ASP Components Created with Java.

• Delphi is discussed in Chapter 21, Creating ASP Components with Delphi.

• Perl is covered in Chapter 22, Perl-Based Components Using ActiveState’s PDK.

• Windows Script Components (WSC), a scriptable yet powerful development

environment for creating ASP components, is discussed in Chapter 23, Creat-

ing Scripting Language Components.

Finally, the book includes two appendixes. Appendix A, ASP Built-in Object Quick

Reference, provides a handy guide to the objects, properties, methods, and events

of the ASP object model. Appendix B, The Weaver Database, examines the tables

contained in the sample Weaver database, which is used in the book's examples.

It can be downloaded from http://vb.oreilly.com.

,ch00.17820 Page xv Thursday, February 22, 2001 1:27 PM

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