More Information
Learn
  • Set up your Java environment and work with the Eclipse IDE
  • Execute complicated web crawlers that run without intervention
  • Handle errors, documentation, and writing robust code
  • Log scraped data for later retrieval and analysis
  • Write code to test website content and functionality with the JUnit framework
  • Learn techniques for getting around website security, designed to prevent automated scraping
  • Fill and submit forms automatically
  • Use threading to run scrapers in parallel
  • Use Java’s Remote Machine Invocation to create multi-server distributed scrapers
About

Java is often thought of as a stuffy enterprise language, while web scraping is the often-murky domain of scripting languages. By combining the robustness and extensibility of Java with the flexibility and power of web scraping, we can create immensely useful tools that can solve very difficult problems.

Instant Web Scraping with Java will guide you, step by step, through setting up your Java environment. You will also learn how to write simple web scrapers and distributed networks of crawlers. Throughout the book, we will provide useful tips, out-of-the-box working code, and additional resources to build expert knowledge.

Instant Web Scraping with Java will teach how to build your own web scrapers using real-world scraping examples that collect and store data from Wikipedia, public records data sites, IP address geolocation services, and more. You will learn how to run scrapers across multiple servers, run them in parallel, and subvert common methods of anti-scraper security used on modern websites. This book will also provide you with detailed step-by-step instructions, out-of-the-box working code, and expert pointers to further resources on key topics.

Instant Web Scraping with Java will show you how to view and collect any Internet data at the speed of your processor!

Features
  • Learn something new in an Instant! A short, fast, focused guide delivering immediate results
  • Get your Java environment set up and running
  • Gather clean, formatted web data into your own database
  • Learn how to work around crawler-resistant websites and legally subvert security measures
  • Use built-in Java features to perform parallel processing and distributed scraping
  • Build test cases for your own websites using JUnit
Page Count 72
Course Length 2 hours 9 minutes
ISBN 9781849696890
Date Of Publication 25 Aug 2013

Authors

Ryan Mitchell

Ryan Mitchell has ten years of programming experience, including Java, C, Perl, PHP, and Python. In addition to “traditional” programming, she specializes in web technologies, with three years of Drupal development experience, and is Sitecore developer certified. She graduated from Olin College of Engineering and is currently studying at the Harvard University Extension School for a Masters in Software Engineering. In addition to academic life, she currently works at Velir Studios as a Web Systems Analyst, and has also worked as a developer for Harvard University and Abine Inc.