Beginning JSP™ 2 API: From Novice to Professional

470 Pages·2004·8.81 MB·English

by  Peter den Haan

Beginning JSpm 2 API:
From Novice
to Professional
PETER DEN HAAN, LANCE LAVANDOWSKA,
SATHYANARAYANAPANDURANGA,
AND KRISHNARAJ PERRUMAL
EDITED BYMATTHEWMOODIE
APress Media, LLC
Beginning Jspm 2 API: From Novice to Professional
ISBN978-1-59059-339-4 ISBN978-1-4302-0693-4(eBook)
DOI 10.1007/978-1-4302-0693-4
Copyright @2004 by Peter den Haan, Lance Lavandowska, Sathya Narayana
Panduranga, and Krishnaraj Perrumal
OriginallypublishedbyApressin2004.
Allrightsreserved.Nopartofthisworkmaybereprodueedortransmittedinanyform orbyany
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section.
Contents at a Glance
About the Authors ix
About the Editor xi
About the Technical Reviewer xiii
Introduction xv
Chapter 1 Creating Your First JSP Page 1
Chapter 2 Learning How HTML Works 23
Chapter 3 Introducing JSP 61
Chapter 4 Working with Data 87
Chapter 5 Making Decisions, Decisions 125
Chapter 6 Reusing Code 167
Chapter 7 Performing Time Management 207
Chapter 8 Using JSP and XML Together 223
Chapter 9 Going Behind the Scenes 255
Chapter 10 Implementing the Model 2 Architecture
and Using Struts 299
Appendix A JSP Syntax Reference 363
Appendix B JSP Implicit Objects 381
Appendix C XML Configuration Files 405
Appendix D Getting More Information 431
Index 441
iii
Contents
About the Authors ix
About the Editor xi
About the Technical Reviewer xiii
Introduction xv
Chapter 1 Creating Your First J5P Page 1
Installing the Software 1
Creating Your First Web Application 9
Exploring aBrief History of Java and the Web 13
Summary 21
Chapter 2 Learning How HTML Works 23
Summarizing HTML 23
Creating HTML Forms 40
Using HTML Elements 43
Finding Further Resources 58
Summary 59
Chapter 3 Introducing J5P
61
Understanding the Available Object Scope 61
Understanding JSP Code Types 62
Using the Java Standard Tag Library (JSTL) 74
Processing Forms with the JSTL 79
Summary 85
Chapter 4 Working with Data
87
Introducing Databases 87
Introducing SQL 97
Manipulating the Database 107
Revisiting the Pizza Application 119
Summary 124
v
Contents
Chapter 5 Making Deeisions, Deeisions 125
Introducing Arrays 126
Comparing Data Values 133
Using Logical Operators 134
Making Decisions 135
Introducing Conditional Statements 136
Understanding Loops and Iteration 153
Introducing Branching Statements 158
Summary 165
Chapter 6 Reusing Code 167
Introducing Code Reuse 168
Planning for Reuse 169
Understanding Mechanisms for Reuse 179
Going Beyond JSP 189
Summary 205
Chapter 7 Performing Time Management 207
Introducing the Date Class 207
Formatting Dates with the JSTL 215
Summary 221
Chapter 8 Using JSP and XML Together 223
Introducing XML 223
Understanding the Structure of XML Data 225
Defining Validity with Schemas 232
Understanding XSL Transformations 249
Summary 254
Chapter 9 Going Behind the Seenes 255
Web Applications and web.xml 256
Introducing the Java Servlet Technology 263
The Servlet Architecture 266
The Servlet Life Cycle 270
Collaboration Between Servlets 276
Getting Initialization Information 284
vi
Contents
Filters 288
Summary 297
Chapter 10 Implementing the Model 2 Architecture
and Using Struts
299
Architecture of Web Applications 300
The Struts Framework 304
Installing and Configuring Struts 308
The Struts Configuration File 313
Core Struts Components 330
Introducing the Struts Tag Libraries 339
Finishing the View 356
Summary 361
Appendix A JSP Syntax Reference
363
Preliminaries 364
Directives 365
Scripting Elements 369
Standard Actions 371
Tag Libraries 378
Implicit Objects 379
Appendix B JSP Implicit Objects
381
The request Object 382
The response Object 389
The out Object 394
The session Object 397
The application Object 399
The exception Object 402
The config Object 403
The page Object 403
The pageContext Object 403
Appendix CXML Configuration Files
405
Common Elements of web.xml 405
Common Elements of the Tag Library Descriptor 418
Common Elements of the Struts Config File 423
vii
Contents
Appendix DGetting More Information
431
Java Development Kit Documentation 431
Tomcat and JSP/Servlet Documentation 436
Other Resources 439
Index
441
viii
About the Authors
Peter den Haan
PeterdenHaanisaseniorsystemsengineerat Objectivity Ltd.,aUK-based sys
temsintegrationcompany.Hestartedoutprogrammingat 13on aRadioShack
TRS-80modelIwith 16KBofmemory, buthe has progressedsince to becomea
J2EEsystemsarchitectandlead developerforInternetandintranetprojectsfor
customersrangingfrom theUKFootballAssociationPremierLeagueto Shell
Finance.
Peterhas previouslywrittenthesecurityandcryptographychaptersfor
BeginningJavaNetworking. He'saSunCertifiedJava2developer, aJavaRanchbar
tender,aself-confessedgeek;he has adoctoratedegree intheoreticalphysics and
playsbass inthe localworshipband.Youcan reach hirnat [email protected].
Lance Lavandowska
LanceLavandowskahas beenworkingwithJSPsince1998.Hehas contributed
to severalApache Jakarta projects,theCastorproject,andtheRollerWeblogger
project.Lancehasalsoservedas atechnicalreviewer on severalJSPbooksand
was acoauthoronProfessionalJSPSiteDesign.
Sathya Narayana Panduranga
SathyaNarayanaPandurangaisasoftwaredesignengineerlivinginBangalore,
theSoftware CapitalofIndia.Hehas expertisein Microsoft andJavatechnolo
giesandhas workedinthedomainsofInternet,telecom, andconvergence.His
favorite areasofinterestare distributedandcomponent-basedapplication
architecturesandobject-orientedanalysis anddesign.Contributingto arangeof
technicalarticlesandbooks isahobbythatgiveshirn theimmensesatisfaction
ofsharinghis knowledge.Youcancontacthirn at [email protected].
ix
AbouttheAuthors
Krishnaraj Perrumal
Krishnaraj PerrumalisfounderanddirectorofAdarshSoftech. Hehas success
fullydevelopedandmanagedanumberofsoftwareprojectsande-projects, and
his programmingexperiencespansthepast15years. Heregularly givespresen
tationson Javatechnology,XML,informationsystemssecurity, andaudits.
He'saSun Certified JavaProgrammer, aCertified NovellNetWareEngineer,
andaCertified InformationSystemsAuditor.Currentlyhe spendsmostofhis
timeprovidingconsultancyandsolutionsforcomputersecurity, in additionto
Webdevelopment.Helovesto spendallhis freetimewith children,butbeing
techsavvy, informationtechnologyconstitutesbothhis professionandhis
hobby.YoucancontactKrishnaraj at [email protected].
x