The J2EE™ 1.4 Tutorial
For Sun Java System Application Server Platform Edition
8.2
Eric Armstrong
Jennifer Ball
Stephanie Bodoff
Debbie Bode Carson
Ian Evans
Dale Green
Kim Haase
Eric Jendrock
December 7, 2005
Copyright © 2006 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, California 95054, U.S.A.
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GARANTIE IMPLICITE RELATIVE A LA QUALITE MARCHANDE, A L’APTITUDE A UNE
UTILISATION PARTICULIERE OU A L’ABSENCE DE CONTREFAÇON.
iii
Foreword . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .xxxi
About This Tutorial. . . . . . . . . . . . . . . . . . . . . . . . .xxxiii
Who Should Use This Tutorial xxxiii
Prerequisites xxxiii
How to Read This Tutorial xxxiv
About the Examples xxxvi
Further Information xxxix
How to Buy This Tutorial xl
How to Print This Tutorial xl
Typographical Conventions xli
Acknowledgments xli
Feedback xlii
Chapter 1: Overview. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Distributed Multitiered Applications 2
J2EE Components 3
J2EE Clients 4
Web Components 6
Business Components 6
Enterprise Information System Tier 8
J2EE Containers 8
Container Services 8
Container Types 9
Web Services Support 10
XML 11
SOAP Transport Protocol 12
WSDL Standard Format 12
UDDI and ebXML Standard Formats 12
Contents
iv
Packaging Applications 13
Development Roles 15
J2EE Product Provider 15
Tool Provider 15
Application Component Provider 16
Application Assembler 16
Application Deployer and Administrator 17
J2EE 1.4 APIs 18
Enterprise JavaBeans Technology 18
Java Servlet Technology 19
JavaServer Pages Technology 19
Java Message Service API 19
Java Transaction API 19
JavaMail API 20
JavaBeans Activation Framework 20
Java API for XML Processing 20
Java API for XML-Based RPC 20
SOAP with Attachments API for Java 21
Java API for XML Registries 21
J2EE Connector Architecture 22
JDBC API 22
Java Naming and Directory Interface 22
Java Authentication and Authorization Service 23
Simplified Systems Integration 24
Sun Java System Application Server Platform Edition 8 24
Technologies 25
Tools 26
Starting and Stopping the Application Server 27
Starting the Admin Console 28
Starting the deploytool Utility 29
Starting and Stopping the Derby Database Server 29
Debugging J2EE Applications 30
Chapter 2: Understanding XML. . . . . . . . . . . . . . . . . . . . . . . . . .33
Introduction to XML 33
What Is XML? 33
Why Is XML Important? 38
How Can You Use XML? 40
Generating XML Data 43
Writing a Simple XML File 43
v
Defining the Root Element 44
Writing Processing Instructions 48
Introducing an Error 49
Substituting and Inserting Text 50
Creating a Document Type Definition 54
Documents and Data 59
Defining Attributes and Entities in the DTD 59
Referencing Binary Entities 66
Defining Parameter Entities and Conditional Sections 68
Resolving a Naming Conflict 72
Using Namespaces 73
Designing an XML Data Structure 76
Saving Yourself Some Work 77
Attributes and Elements 77
Normalizing Data 79
Normalizing DTDs 81
Summary 81
Chapter 3: Getting Started with Web Applications . . . . . . . . . 83
Web Application Life Cycle 86
Web Modules 88
Packaging Web Modules 90
Deploying Web Modules 92
Listing Deployed Web Modules 95
Updating Web Modules 96
Undeploying Web Modules 98
Configuring Web Applications 99
Mapping URLs to Web Components 99
Declaring Welcome Files 101
Setting Initialization Parameters 102
Mapping Errors to Error Screens 102
Declaring Resource References 103
Duke’s Bookstore Examples 103
Accessing Databases from Web Applications 104
Populating the Example Database 105
Creating a Data Source in the Application Server 106
Specifying a Web Application’s Resource Reference 106
Mapping the Resource Reference to a Data Source 107
Further Information 108
