Core Servlets and JavaServer Pages Volume 1: Core Technologies

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ISBN: 9780130092298 | 0130092290
Cover: Paperback
Copyright: 8/26/2003

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bull; Introduces powerful new Servlet/JSP techniques that take advantage of the new features of JSP 2.0, servlets 2.4, and the JSP Standard Tag Library (JSTL) bull; Covers advanced JDBC topics, XML integration, Apache Struts and Integrating servlets and JSP with the Model-View-Controller (MVC) architecture bull; Written by best-selling author Marty Hall -- who states this is "a significant revision. "

ACKNOWLEDGMENTS

XXIII

About the Authors

xxiv

INTRODUCTION

XXV

Who Should Read This Book

xxvii

Volume 2

xxvii

Distinctive Features

xxviii

How This Book Is Organized

xxx

Conventions

xxxi

About the Web Site

xxxii

CHAPTER 1 AN OVERVIEW OF SERVLET AND JSP TECHNOLOGY

(12)

1.1 A Servlet's Job

(2)

1.2 Why Build Web Pages Dynamically?

(1)

1.3 A Quick Peek at Servlet Code

(1)

1.4 The Advantages of Servlets Over "Traditional" CGI

(4)

Efficient

(1)

Convenient

(1)

Powerful

(1)

Portable

(1)

Inexpensive

(1)

Secure

(1)

Mainstream

(1)

1.5 The Role of JSP

(3)

PART I SERVLET TECHNOLOGY

(286)

CHAPTER 2 SERVER SETUP AND CONFIGURATION

(48)

2.1 Download and Install the Java Software Development Kit (SDK)

(1)

2.2 Download a Server for Your Desktop

(3)

2.3 Configure the Server

(1)

2.4 Configuring Apache Tomcat

(5)

Setting the JAVA_HOME Variable

(1)

Specifying the Server Port

(1)

Enabling Servlet Reloading

(1)

Enabling the ROOT Context

(1)

Turning on the Invoker Servlet

(1)

Increasing DOS Memory Limits

(1)

Setting CATALINA_HOME

(1)

Testing the Basic Server Setup

(1)

2.5 Configuring Macromedia JRun

(6)

The JRun Serial Number

(1)

JRun User Restrictions

(1)

The Java Installation Location

(1)

The Server Installation Location

(1)

The Administrator Username and Password

(1)

The Autostart Capability

(1)

The Server Port

(1)

Testing the Basic Server Setup

(1)

2.6 Configuring Caucho Resin

(1)

Setting the JAVA_HOME Variable

(1)

Specifying the Resin Port

(1)

Testing the Basic Server Setup

(1)

2.7 Set Up Your Development Environment

(4)

Creating a Development Directory

(1)

Setting Your CLASSPATH

(2)

Making Shortcuts to Start and Stop the Server

(1)

Bookmarking or Installing the Servlet and JSP API Documentation

(1)

2.8 Test Your Setup

(10)

Verifying Your SDK Installation

(1)

Checking Your Basic Server Configuration

(2)

Compiling and Deploying Some Simple Servlets

(7)

2.9 Establish a Simplified Deployment Method

(3)

Copying to a Shortcut or Symbolic Link

(1)

Using the -d Option of javac

(1)

Letting Your IDE Take Care of Deployment

(1)

Using ant or a Similar Tool

(1)

2.10 Deployment Directories for Default Web Application: Summary

(3)

Tomcat

(1)

JRun

(1)

Resin

(1)

2.11 Web Applications: A Preview

(9)

Making a Web Application Directory

(1)

Updating Your CLASSPATH

(1)

Registering the Web Application with the Server

(1)

Using the URL Prefix

(2)

Assigning Custom URLs to Your Servlets

(4)

CHAPTER 3 SERVLET BASICS

(30)

3.1 Basic Servlet Structure

(2)

3.2 A Servlet That Generates Plain Text

(2)

3.3 A Servlet That Generates HTML

(2)

3.4 Servlet Packaging

(2)

3.5 Simple HTML-Building Utilities

(3)

3.6 The Servlet Life Cycle

(9)

The service Method

(1)

The doGet, doPost, and doXxx Methods

(1)

The init Method

(6)

The destroy Method

(1)

3.7 The Single ThreadModel Interface

(4)

3.8 Servlet Debugging

(4)

CHAPTER 4 HANDLING THE CLIENT REQUEST: FORM DATA

(52)

4.1 The Role of Form Data

(2)

4.2 Reading Form Data from Servlets

(3)

Reading Single Values: getParameter

(1)

Reading Multiple Values: getParameterValues

(1)

Looking Up Parameter Names: getParameterNames and getParameterMap

(1)

Reading Raw Form Data and Parsing Uploaded Files: getReader or getInputStream

(1)

Reading Input in Multiple Character Sets: setCharacterEncoding

(1)

4.3 Example: Reading Three Parameters

100

(4)

4.4 Example: Reading All Parameters

104

(4)

4.5 Using Default Values, When Parameters Are Missing or Malformed

108

(12)

4.6 Filtering Strings for HTML-Specific Characters

120

(7)

Code for Filtering

121

(2)

Example: A Servlet That Displays Code Snippets

123

(4)

4.7 Automatically Populating Java Objects from Request Parameters: Form Beans

127

(7)

Putting BeanUtilities to Work

130

(3)

Obtaining and Installing the Jakarta Commons Packages

133

(1)

4.8 Redisplaying the Input Form When Parameters Are Missing or Malformed

134

(12)

Redisplay Options

135

(1)

A Servlet That Processes Auction Bids

136

(10)

CHAPTER 5 HANDLING THE CLIENT REQUEST: HTTP REQUEST HEADERS

146

(28)

5.1 Reading Request Headers

148

(2)

5.2 Making a Table of AII Request Headers

150

(2)

5.3 Understanding HTTP I.I Request Headers

152

(4)

5.4 Sending Compressed Web Pages

156

(5)

5.5 Differentiating Among Different Browser Types

161

(2)

5.6 Changing the Page According to How the User Got There

163

(4)

5.7 Accessing the Standard CGI Variables

167

(7)

Servlet Equivalent of CGI Variables

168

(2)

A Servlet That Shows the CGI Variables

170

(4)

CHAPTER 6 GENERATING THE SERVER RESPONSE: HTTP STATUS CODES

174

(20)

6.1 Specifying Status Codes

176

(2)

Setting Arbitrary Status Codes: setStatus

176

(1)

Setting 302 and 404 Status Codes: sendRedirect and sendError

177

(1)

6.2 HTTP 1.1 Status Codes

178

(6)

6.3 A Servlet That Redirects Users to Browser-Specific Pages

184

(2)

6.4 A Front End to Various Search Engines

186

(8)

CHAPTER 7 GENERATING THE SERVER RESPONSE: HTTP RESPONSE HEADERS

194

(34)

7.1 Setting Response Headers from Servlets

196

(1)

7.2 Understanding HTTP 1.1 Response Headers

197

(7)

7.3 Building Excel Spreadsheets

204

(2)

7.4 Persistent Servlet State and Auto-Reloading Pages

206

(11)

Finding Prime Numbers for Use with Public Key Cryptography

206

(11)

7.5 Using Servlets to Generate JPEG Images

217

(11)

CHAPTER 8 HANDLING COOKIES

228

(34)

8.1 Benefits of Cookies

229

(2)

Identifying a User During an E-commerce Session

230

(1)

Remembering Usernames and Passwords

230

(1)

Customizing Sites

231

(1)

Focusing Advertising

231

(1)

8.2 Some Problems with Cookies

231

(3)

8.3 Deleting Cookies

234

(2)

8.4 Sending and Receiving Cookies

236

(3)

Sending Cookies to the Client

236

(2)

Reading Cookies from the Client

238

(1)

8.5 Using Cookies to Detect First-Time Visitors

239

(2)

8.6 Using Cookie Attributes

241

(3)

8.7 Differentiating Session Cookies from Persistent Cookies

244

(4)

8.8 Basic Cookie Utilities

248

(2)

Finding Cookies with Specified Names

248

(2)

Creating Long-Lived Cookies

250

(1)

8.9 Putting the Cookie Utilities into Practice

250

(2)

8.10 Modifying Cookie Values: Tracking User Access Counts

252

(3)

8.11 Using Cookies to Remember User Preferences

255

(7)

CHAPTER 9 SESSION TRACKING

262

(38)

9.1 The Need for Session Tracking

263

(2)

264

(1)

URL Rewriting

264

(1)

Hidden Form Fields

265

(1)

Session Tracking in Servlets

265

(1)

9.2 Session Tracking Basics

265

(4)

Accessing the Session Object Associated with the Current Request

266

(1)

Looking Up Information Associated with a Session

267

(1)

Associating Information with a Session

268

(1)

Discarding Session Data

268

(1)

9.3 The Session-Tracking API

269

(2)

9.4 Browser Sessions vs. Server Sessions

271

(1)

9.5 Encoding URLs Sent to the Client

272

(1)

9.6 A Servlet That Shows Per-Client Access Counts

273

(4)

9.7 Accumulating a List of User Data

277

(4)

9.8 An On-Line Store with a Shopping Cart and Session Tracking

281

(21)

Creating the Front End

281

(5)

Handling the Orders

286

(6)

Behind the Scenes: Implementing the Shopping Cart and Catalog Items

292

(8)

PART II JSP TECHNOLOGY

300

(196)

CHAPTER 10 OVERVIEW OF JSP TECHNOLOGY

302

(16)

10.1 The Need for JSP

304

(1)

10.2 Benefits of JSP

305

(1)

10.3 Advantages of JSP Over Competing Technologies

306

(3)

Versus NET and Active Server Pages (ASP)

306

(1)

Versus PHP

307

(1)

Versus Pure Servlets

307

(1)

Versus JavaScript

308

(1)

Versus WebMacro or Velocity

308

(1)

10.4 Misconceptions About JSP

309

(3)

Forgetting JSP Is Server-Side Technology

309

(1)

Confusing Translation Time with Request Time

310

(1)

Thinking JSP Alone Is Sufficient

311

(1)

Thinking Servlets Alone Are Sufficient

312

(1)

10.5 Installation of JSP Pages

312

(2)

JSP Directories for Tomcat (Default Web Application)

312

(1)

JSP Directories for JRun (Default Web Application)

313

(1)

JSP Directories for Resin (Default Web Application)

313

(1)

10.6 Basic Syntax

314

(4)

HTML Text

314

(1)

HTML Comments

314

(1)

Template Text

314

(1)

JSP Comment

314

(1)

JSP Expression

315

(1)

JSP Scriptlet

315

(1)

JSP Declaration

315

(1)

JSP Directive

315

(1)

JSP Action

316

(1)

JSP Expression Language Element

316

(1)

Custom Tag (Custom Action)

316

(1)

Escaped Template Text

317

(1)

CHAPTER 11 INVOKING JAVA CODE WITH JSP SCRIPTING ELEMENTS

318

(34)

11.1 Creating Template Text

319

(1)

11.2 Invoking Java Code from JSP

320

(1)

Types of JSP Scripting Elements

321

(1)

11.3 Limiting the Amount of Java Code in JSP Pages

321

(4)

The Importance of Using Packages

323

(2)

11.4 Using JSP Expressions

325

(3)

Predefined Variables

325

(1)

JSP/Servlet Correspondence

326

(1)

XML Syntax for Expressions

327

(1)

11.5 Example: JSP Expressions

328

(2)

11.6 Comparing Servlets to JSP Pages

330

(2)

11.7 Writing Scriptlets

332

(2)

JSP/Servlet Correspondence

333

(1)

XML Syntax for Scriptlets

334

(1)

11.8 Scriptlet Example

334

(2)

11.9 Using Scriptlets to Make Parts of the JSP Page Conditional

336

(2)

11.10 Using Declarations

338

(2)

JSP/Servlet Correspondence

339

(1)

XML Syntax for Declarations

340

(1)

11.11 Declaration Example

340

(2)

11.12 Using Predefined Variables

342

(2)

11.13 Comparing JSP Expressions, Scriptlets, and Declarations

344

(8)

Example 1: JSP Expressions

345

(2)

Example 2: JSP Scriptlets

347

(2)

Example 3: JSP Declarations

349

(3)

CHAPTER 12 CONTROLLING THE STRUCTURE OF GENERATED SERVLETS: THE JSP PAGE DIRECTIVE

352

(20)

12.1 The import Attribute

354

(3)

12.2 The contentType and pageEncoding Attributes

357

(2)

Generating Excel Spreadsheets

358

(1)

12.3 Conditionally Generating Excel Spreadsheets

359

(3)

12.4 The session Attribute

362

(1)

12.5 The isELIgnored Attribute

363

(1)

12.6 The buffer and autoFlush Attributes

363

(1)

12.7 The info Attribute

364

(1)

12.8 The errorPage and isErrorPage Attributes

364

(3)

12.9 The isThreadSafe Attribute

367

(2)

12.10 The extends Attribute

369

(1)

12.11 The language Attribute

369

(1)

12.12 XML Syntax for Directives

370

(2)

CHAPTER 13 INCLUDING FILES AND APPLETS IN JSP PAGES

372

(26)

13.1 Including Pages at Request Time: The jsp:include Action

374

(6)

The page Attribute: Specifying the Included Page

374

(2)

XML Syntax and jsp:include

376

(1)

The flush Attribute

376

(1)

A News Headline Page

377

(2)

The jsp:param Element: Augmenting Request Parameters

379

(1)

13.2 Including Files at Page Translation Time: The include Directive

380

(6)

Maintenance Problems with the include Directive

381

(1)

Additional Power from the include Directive

382

(1)

Updating the Main Page

383

(1)

XML Syntax for the include Directive

383

(1)

Example: Reusing Footers

383

(3)

13.3 Forwarding Requests with jsp:forward

386

(1)

13.4 Including Applets for the Java Plug-In

386

(12)

The jsp:plugin Element

389

(2)

The jsp:param and jsp:params Elements

391

(1)

The jsp:fallback Element

392

(1)

A jsp:plugin Example

392

(6)

CHAPTER 14 USING JAVABEANS COMPONENTS IN JSP DOCUMENTS

398

(36)

14.1 Why Use Beans?

400

(1)

14.2 What Are Beans?

400

(2)

14.3 Using Beans: Basic Tasks

402

(4)

Building Beans: jsp:useBean

402

(1)

Installing Bean Classes

403

(1)

Using jsp:useBean Options: scope, beanName, and type

404

(1)

Accessing Bean Properties: jsp:getProperty

405

(1)

Setting Simple Bean Properties: jspgetProperty

405

(1)

14.4 Example: StringBean

406

(3)

14.5 Setting Bean Properties: Advanced Techniques

409

(8)

Associating Individual Properties with Input Parameters

414

(1)

Associating All Properties with Request Parameters

415

(2)

14.6 Sharing Beans

417

(4)

Creating Beans Conditionally

418

(3)

14.7 Sharing Beans in Four Different Ways: An Example

421

(13)

Building the Bean and the Bean Tester

422

(1)

Using scope="page"-No Sharing

423

(2)

Using Request-Based Sharing

425

(3)

Using Session-Based Sharing

428

(2)

Using ServletContext-Based Sharing

430

(4)

CHAPTER 15 INTEGRATING SERVLETS AND JSP: THE MODEL VIEW CONTROLLER (MVC) ARCHITECTURE

434

(30)

15.1 Understanding the Need for MVC

435

(2)

MVC Frameworks

436

(1)

Architecture or Approach?

437

(1)

15.2 Implementing MVC with RequestDispatcher

437

(6)

Defining Beans to Represent the Data

438

(1)

Writing Servlets to Handle Requests

438

(1)

Populating the Beans

439

(1)

Storing the Results

439

(1)

Forwarding Requests to JSP Pages

440

(3)

Extracting Data from Beans

443

(1)

15.3 Summarizing MVC Code

443

(2)

Request-Based Data Sharing

443

(1)

Session-Based Data Sharing

444

(1)

Application-Based Data Sharing

444

(1)

15.4 Interpreting Relative URLs in the Destination Page

445

(1)

15.5 Applying MVC: Bank Account Balances

446

(7)

15.6 Comparing the Three Data-Sharing Approaches

453

(9)

Request-Based Sharing

454

(2)

Session-Based Sharing

456

(3)

Application-Based Sharing

459

(3)

15.7 Forwarding Requests from JSP Pages

462

(1)

15.8 Including Pages

463

(1)

CHAPTER 16 SIMPLIFYING ACCESS TO JAVA CODE: THE JSP 2.0 EXPRESSION LANGUAGE

464

(32)

16.1 Motivating EL Usage

465

(2)

16.2 Invoking the Expression Language

467

(1)

Escaping Special Characters

468

(1)

16.3 Preventing Expression Language Evaluation

468

(3)

Deactivating the Expression Language in an Entire Web Application

469

(1)

Deactivating the Expression Language in Multiple JSP Pages

469

(1)

Deactivating the Expression Language in Individual JSP Pages

470

(1)

Deactivating Individual Expression Language Statements

470

(1)

16.4 Preventing Use of Standard Scripting Elements

471

(1)

16.5 Accessing Scoped Variables

472

(3)

Choosing Attribute Names

473

(1)

An Example

473

(2)

16.6 Accessing Bean Properties

475

(6)

Equivalence of Dot Notation and Array Notation

476

(1)

An Example

477

(4)

16.7 Accessing Collections

481

(2)

An Example

481

(2)

16.8 Referencing Implicit Objects

483

(4)

An Example

485

(2)

16.9 Using Expression Language Operators

487

(4)

Arithmetic Operators

487

(1)

Relational Operators

488

(1)

Logical Operators

489

(1)

The empty Operator

489

(1)

An Example

489

(2)

16.10 Evaluating Expressions Conditionally

491

(4)

An Example

492

(3)

16.11 Previewing Other Expression Language Capabilities

495

(1)

PART III SUPPORTING TECHNOLOGY

496

(162)

CHAPTER 17 ACCESSING DATABASES WITH JDBC

498

(56)

17.1 Using JDBC in General

500

(9)

Load the JDBC Driver

501

(3)

Define the Connection URL

504

(1)

Establish the Connection

504

(1)

Create a Statement Object

505

(1)

Execute a Query or Update

505

(1)

Process the Results

506

(3)

Close the Connection

509

(1)

17.2 Basic JDBC Examples

509

(8)

17.3 Simplifying Database Access with JDBC Utilities

517

(13)

17.4 Using Prepared Statements

530

(4)

17.5 Creating Callable Statements

534

(7)

Define the Call to the Database Procedure

535

(1)

Prepare a CallableStatement for the Procedure

536

(1)

536

(1)

Provide Values for the Input Parameters

536

(1)

Execute the Stored Procedure

537

(1)

Access the Output Parameters

537

(1)

Example

537

(4)

17.6 Using Database Transactions

541

(5)

17.7 Mapping Data to Objects by Using ORM Frameworks

546

(8)

CHAPTER 18 CONFIGURING MS ACCESS, MYSQL, AND ORACLE9I

554

(52)

18.1 Configuring Microsoft Access for Use with JDBC

556

(4)

Select a System DSN from the ODBC

Data Source Administrator

557

(1)

Select a Driver for the New System DSN

558

(1)

Select a Data Source

558

(1)

Select OK to Accept the New DSN

559

(1)

18.2 Installing and Configuring MySQL

560

(3)

Download and Install MySQL

561

(1)

Create a Database

561

(1)

Create a User

562

(1)

Install the JDBC Driver

562

(1)

18.3 Installing and Configuring Oracle9i Database

563

(27)

Download and Install Oracle9i

564

(10)

Create a Database

574

(1)

Create a Database with the Configuration Assistant

574

(7)

Create a Database Manually

581

(8)

Create a User

589

(1)

Install the JDBC Driver

589

(1)

18.4 Testing Your Database Through a JDBC Connection

590

(9)

18.5 Setting Up the music Table

599

(7)

Using CreateMusicTable.java to Create the music Table

599

(3)

Using create_music table.sgl to Create the music Table

602

(4)

CHAPTER 19 CREATING AND PROCESSING HTML FORMS

606

(52)

Default Web Application: Tomcat

607

(1)

Default Web Application: JRun

608

(1)

Default Web Application: Resin

608

(1)

19.1 How HTML Forms Transmit Data

608

(5)

19.2 The FORM Element

613

(7)

19.3 Text Controls

620

(5)

Textfields

620

(3)

Password Fields

623

(1)

Text Areas

624

(1)

19.4 Push Buttons

625

(6)

Submit Buttons

626

(3)

Reset Buttons

629

(1)

JavaScript Buttons

630

(1)

19.5 Check Boxes and Radio Buttons

631

(3)

Check Boxes

631

(1)

Radio Buttons

632

(2)

19.6 Combo Boxes and List Boxes

634

(5)

19.7 File Upload Controls

639

(2)

19.8 Server-Side Image Maps

641

(5)

IMAGE-Standard Server-Side Image Maps

642

(2)

ISMAP-Alternative Server-Side Image Maps

644

(2)

19.9 Hidden Fields

646

(1)

19.10 Groups of Controls

647

(2)

19.11 Tab Order Control

649

(1)

19.12 A Debugging Web Server

650

(9)

EchoServer

650

(8)

APPENDIX SERVER ORGANIZATION AND STRUCTURE

658

(13)

Tomcat

659

(4)

Downloading the Software

659

(1)

Bookmarking the Servlet and JSP APIs

659

(1)

Configuring the Server

660

(1)

Setting Up Your Development Environment

660

(1)

Using the Default Web Application

661

(1)

Using Custom Web Applications

661

(2)

Viewing Autogenerated Code for JSP Pages

663

(1)

JRun

663

(4)

Downloading the Software

663

(1)

Bookmarking the Servlet and JSP APIs

663

(1)

Configuring the Server

664

(1)

Setting Up Your Development Environment

664

(1)

Using the Default Web Application

664

(1)

Using Custom Web Applications

665

(1)

Viewing Autogenerated Code for JSP Pages

666

(1)

Resin

667

(4)

Downloading the Software

667

(1)

Bookmarking the Servlet and JSP APIs

667

(1)

Configuring the Server

667

(1)

Setting Up Your Development Environment

668

(1)

Using the Default Web Application

668

(1)

Using Custom Web Applications

669

(1)

Viewing Autogenerated Code for JSP Pages

670

(1)

INDEX

671

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Core Servlets and JavaServer Pages Volume 1: Core Technologies

Summary

Author Biography

Table of Contents

Supplemental Materials