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More About This Title Web Server Programming
English
Focusing on various technologies that support the server-side processing of data from web-based forms, principally CGI style programs, scripting and Java solutions, this is a book tailored to the technical and computational components of running a commercial and successful website. To benefit most from this approach, you will have a working knowledge of HTML, some programming experience in Java or C++, and limited experience with databases. Its concentration on server-side to the exclusion of web-page design and client-side concerns will be welcomed by practitioners and students who want hands-on and in-depth guidance on:
* Setting up and running an Apache server
* Use of Perl for web CGI programming and support administrative tasks
* PHP Scripting - ideal for prototyping small web services
* Servlet technologies
* JSP - separating the issues of business programming and presentation
* XML - a few of its applications
* Advanced services with EJBs
* NET's new world order - a better model for client/server interaction
The unified presentation allows for evaluation and comparison and cuts down on tedious duplication of content. Use it as a map to navigate the strengths and niches of each of the tools to help judge which best suits your environment and requirements. Realistic examples help to ground this broad coverage of server technologies and will prove invaluable for web masters, systems administrators and students looking for careers requiring web programming skills. Please visit booksite: www.uow.edu.au/~nabg/WebServer
English
English
Preface xi
1 Introduction 1
1.1 Servers on the Internet 2
1.2 Serving static hypertext 6
1.3 Serving dynamically generated hypertext 8
1.4 Forms and CGI 11
1.5 A CGI program and examples 18
1.6 Client-side scripting 29
Exercises 32
Practical 32
Short answer questions 32
Explorations 33
2 HTTP 35
2.1 Requests and responses 36
2.1.1 Requests 38
2.1.2 Responses 40
2.2 Authorization 41
2.3 Negotiated content 43
2.4 State in a stateless protocol 44
Exercises 45
Short answer questions 45
Explorations 45
3 Apache 47
3.1 Apache’s processes 48
3.2 Apache’s modules 51
3.3 Access controls 54
3.4 Logs 58
3.5 Generation of dynamic pages 61
3.6 Apache: installation and configuration 64
3.6.1 Basic installation and testing 64
3.6.2 The httpd.conf configuration file 67
Exercises 71
Practical 71
Short answer questions 75
Explorations 76
4 IP and DNS 77
4.1 IP addresses 78
4.2 IP addresses and names 81
4.3 Name resolution 84
4.4 BIND 86
Exercises 89
Practical 89
Short answer questions 90
Explorations 90
5 Perl 91
5.1 Perl’s origins 92
5.2 Running Perl, and the inevitable ‘Hello World’ program 93
5.3 Perl language 94
5.3.1 Scalar variables 95
5.3.2 Control structures 98
5.4 Perl core functions 101
5.5 ’CS1’ revisited: simple Perl programs 103
5.5.1 Burgers 103
5.5.2 ls -l 105
5.6 Beyond CS1: lists and arrays 108
5.6.1 Basics of lists 108
5.6.2 Two simple list examples 112
5.7 Subroutines 118
5.8 Hashes 120
5.9 An example using a hash and a list 122
5.10 Files and formatting 123
5.11 Regular expression matching 126
5.11.1 Basics of regex patterns 128
5.11.2 Finding ‘what matched?’ and other advanced features 131
5.12 Perl and the OS 136
5.12.1 Manipulating files and directories 137
5.12.2 Perl: processes 140
5.12.3 A ‘systems programming’ example 143
5.13 Networking 150
5.14 Modules 153
5.15 Databases 154
5.15.1 Basics 154
5.15.2 Database example 158
5.16 Perl: CGI 163
5.16.1 ’Roll your own’ CGI code 164
5.16.2 Perl: CGI module(s) 171
5.16.3 Security issues and CGI 173
Exercises 174
Practical 174
Short answer questions 180
Explorations 181
6 PHP4 183
6.1 PHP4’s origins 183
6.2 PHP language 187
6.2.1 Simple variables and data types 187
6.2.2 Operators 191
6.2.3 Program structure and flow control 191
6.2.4 Functions 193
6.3 Simple examples 194
6.4 Multi-page forms 198
6.5 File uploads 207
6.6 Databases 216
6.7 GD graphics library 227
6.8 State 238
Exercises 248
Practical 248
Short answer questions 257
Explorations 257
7 Java Servlets 259
7.1 Servlet overview 259
7.2 A first servlet example 261
7.2.1 Form and servlet code 263
7.2.2 Installation, Compilation, Deployment 265
7.2.3 web.xml deployment files 268
7.3 Sun’s servlet-related classes 269
7.4 Web application example: ‘Membership’ 276
7.5 Client state and sessions 290
7.6 Images 304
7.7 Security features 306
Exercises 328
Practical 328
Short answer questions 336
Explorations 336
Contents vii
8 JSP: Java Server Pages 337
8.1 JSP overview 337
8.2 The ‘Guru’ – a JSP example 340
8.2.1 The scriptlet Guru 340
8.2.2 The tagged Guru 343
8.3 Membership example 344
8.4 JSP: page contents 352
8.4.1 JSP directives 354
8.4.2 jsp: tag library 355
8.5 Servlet, bean and JSP examples 356
8.6 Tag libraries 368
8.6.1 Defining a simple customized action tag 369
8.6.2 Using tag libraries 373
Exercises 375
Practical 375
Short answer questions 379
Explorations 380
9 XML 381
9.1 XML overview 381
9.2 XML and friends 384
9.3 XSL, XSLT and XML display 391
9.4 XML and XSL generating WML 403
9.5 Simple API for XML 412
9.6 DOM – the Document Object Model 422
Exercises 428
Practical 428
Short answer questions 432
Explorations 433
10 Enterprise Java 435
10.1 EJB background 437
10.1.1 Smart beans in smarter containers 437
10.1.2 Distributed objects 438
10.2 EJB basics 441
10.2.1 Servers, containers and beans 441
10.2.2 The life of a bean 444
10.2.3 Classes and interfaces 444
10.2.4 EJB clients and EJB deployment 446
10.3 Session bean examples 447
10.3.1 Stateless server 447
10.3.2 Stateful server 453
10.4 An Entity bean 456
10.5 Real-world EJB 470
Exercises 485
Practical 485
Short answer questions 485
Explorations 485
11 Future technologies? 487
11.1 (Lack of) Speed kills 487
11.2 Personal internet presence 489
11.3 Peer-to-peer 490
11.4 ... and on to ‘Web Services’ 492
11.4.1 The existing world of distributed objects 492
11.4.2 Steps towards a future world of distributed objects 495
11.4.3 UDDI, WSDL and SOAP 498
11.4.4 Web service promises 509
Exercises 512
Explorations 512
Appendices
A Minimalist guide to HTML and JavaScript 515
B Active Server Pages: ASP (scripting) 549
C .NET 573
Index 601
