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...It is designed to make crawler development straightforward by allowing developers to extract page elements using jQuery-style selectors rather than complex parsing logic. It integrates several well-known Java libraries and frameworks, including tools for HTTP requests, HTML parsing, JSON processing, and application development. Through its annotation-based design, developers can define crawling rules and data extraction logic directly within Java classes, reducing boilerplate code and improving readability. Gecco also provides mechanisms for handling dynamic web content, including support for asynchronous requests and extraction of JavaScript variables from pages. ...

Simple-Scrape is a simple web-scraping library that allows for programmatic access to HTML code. No further techniques are needed and the library is very compact and thus easy to use.

webStraktor is a programmable World Wide Web data extraction client. Its purpose is to scrape HTML based content via the HTTP protocol and extract relevant information. webStraktor features a scripting language to facilitate the collection, the extraction and the storage of information available on the web, including images. The scripting language uses elements of the Regular Expression and xPath syntax. The webStraktor scripting language has a small instruction set and its syntax is easy to master. ...

Arachnid is a Java-based web spider framework. It includes a simple HTML parser object that parses an input stream containing HTML content. Simple Web spiders can be created by sub-classing Arachnid and adding a few lines of code called after each page