作者：Michael Schrenk
出版日期：March 30, 2007
出版社：其它
页数：328
ISBN：ISBN-10: 1593271204 ISBN-13: 978-1593271206
文件格式：CHM


Product Description
The Internet is bigger and better than what a mere browser allows. Webbots, Spiders, and Screen Scrapersis for programmers and businesspeople who want to take full advantageof the vast resources available on the Web. There’s no reason to letbrowsers limit your online experience-especially when you can easilyautomate online tasks to suit your individual needs.Learn how to writewebbots and spiders that do all this and more:Programmatically download entire websitesEffectively parse data from web pagesManage cookiesDecode encrypted filesAutomate form submissionsSend and receive emailSend SMS alerts to your cell phoneUnlock password-protected websitesAutomatically bid in online auctionsExchange data with FTP and NNTP serversSample projects usingstandard code libraries reinforce these new skills. You’ll learn how tocreate your own webbots and spiders that track online prices, aggregatedifferent data sources into a single web page, and archive the onlinedata you just can’t live without. You’ll learn inside information froman experienced webbot developer on how and when to write stealthywebbots that mimic human behavior, tips for developing fault-tolerantdesigns, and various methods for launching and scheduling webbots.You’ll also get advice on how to write webbots and spiders that respectwebsite owner property rights, plus techniques for shielding websitesfrom unwanted robots.As a bonus, visit the author’s website to testyour webbots on sample target pages, and to download the scripts andcode libraries used in the book.Some tasks are just too tedious-or too important!- to leave tohumans. Once you’ve automated your online life, you’ll never let abrowser limit the way you use the Internet again.
About the Author
Michael Schrenk uses webbots and data-driven web applications to createcompetitive advantages for businesses. He has written for Computerworldand Web Techniques magazines and has taught courses on Web usabilityand Internet marketing. He has also given presentations on intelligentWeb agents and online corporate intelligence at the DEFCON hacker’sconvention.