Perl&CGI Webアプリケーション開発 単行本 – 2002/1
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Explains how to use the programming language to write online applications with each chapter describing one specific Web-based application--diagramming the code and suggesting potential modifications. --このテキストは、ペーパーバック版に関連付けられています。
This is a great book of useful, real-world CGI examples. As long as you already know Perl (you must have a decent familiarity with the language and some scripting background to really use this book well, or else you will get overwhelmed!!!) this is a perfect way to go from theory to practice in just a few easy steps.
The problem, of course, with most Perl CGI books is that they are written by people who just don't know very much Perl. That's certainly not the case here. Both Kevin and Brent are well-respected members of the Perl community and they know what they are talking about when it comes to writing CGI programs in Perl.
Another common mistake in Perl CGI books is that the authors try to take people who know a bit of HTML and teach them programming, Perl and CGI all at the same time. The authors of this book realise that this approach is likely to lead to, at best, patchy understanding of any of these concepts so they aim there book at people who are already programmers and who have some knowledge of Perl. This means that they can concentrate of teaching the parts of Perl that are useful when writing CGI programs.
One corner that is often cut when discussing CGI programming is security. This is a very dangerous approach to take as a badly written CGI program can leave your web server open to attack from anyone on the Internet. That's not a mistake that is made here as the authors introduce security in chapter 2. Add to that the fact that the code examples all use -w, use strict and CGI.pm and the book is already head and shoulders above most of its competition.
Early chapters look at common CGI requirements such as file uploads and cookies. Each chapter is full of well written (and well-explained) sample code. The example of an access counter in chapter 6 even locks the file containing the current count - this is possibly a first in a Perl CGI book!
By the middle of the book we have already moved beyond simple CGI programming and are looking at mod_perl. This chapter covers both the "faux-CGI" Apache::Registry module and also writing complete mod_perl handlers.
In the second half of the book we start to look at some bigger examples. The authors present a web-based email system and even a shopping cart. In order to fit these examples into their respective chapters a couple of corners have been cut, but there's enough information there to enable anyone to write the complete systems.
Chapter 13 introduces the HTML::Mason module as a way to separate content from presentation. It's obvious that the author's are big fans of this module and this leads to my only real criticism of the book. At no point do they mention the fact that the same benefits can be gained from using any of half a dozen templating systems found on the CPAN. I would have been a lot happier if they had mentioned things like Text::Template, HTML::Template and the Template Toolkit before picking HTML::Mason as the system for their example.
There are then two more long chapters with examples of a document management system and image manipulation software. Once more the code in these examples would serve as a greating starting point for anyone wanting to implement something along these lines. The last chapter looks at XML and, in particular, the use of RSS files to provide data feeds to other web sites.
All in all this is a very useful book for someone wanting to write web-based applications using Perl. It's packed full of good advice and code that follows all of the best practices for writing CGI programs in Perl. This book won't teach you Perl, but if you've read Learning Perl or Elements of Programming with Perl then you'll find this book easy enough to follow.
This book is for those who have already started working with Perl CGI and want to know more. If you have ever downloaded and installed scripts from Matt's Script Archive or CGI-Resources.com or if you have installed Perl on your Windoze box and played with it and want to learn more, this book is for you.
Unlike many Perl CGI books that end with a chapter on how to use modules from CPAN, this book with starts with how to install and use modules and then shows you how to use the more advanced Perl CGI features like CGI.pm, mod_perl and Mason. It takes you through projects like using the Perl DBI, file uploading, cookies, working with the Apache registry and XML.
As an earlier reviewer pointed out, this is a unique Perl book and has its own niche. If falls in between a beginner book like Jacqueline Hamilton's CGI Programming 101, Simon Cozen's Beginning Perl or Randall Schwartz's Learning Perl and the more advanced books like O'Reilly's Programming Perl and Advanced Perl Programming.
It's also nice to see a new Perl CGI book come out a time when CGI seems to be losing ground to the newer web development technologies like PHP, Java Server Pages and ASP.