Using Crawler4j, Jsoup, and JavaScript to retrieve modified attribute values

Currently, I am utilizing Crawler4j and Jsoup for web crawling and it's performing well with HTML text. However, some vital contents have default values hardcoded in CSS and then dynamically adjusted through JavaScript. For instance, there's a element where the width value is set to 10px in CSS but changed to 5px using JavaScript.

Is there a method to retrieve this value without resorting to another crawler? Or perhaps a more straightforward solution? I've already written quite a bit of code, so I'd prefer not to rewrite everything if it can be achieved with Crawler4j.

I trust that my inquiry is sufficiently clear, and I appreciate any assistance you can provide!

Answer №1

You won't be able to accomplish this using crawler4j or jsoup. These tools are designed for handling static HTML content only.

There are ongoing challenges regarding executing dynamic JavaScript on the official GitHub Repository: #49, #197, and #220.

To accomplish your goals, you will need to create a toolkit using Selenium, CasperJS, and/or PhantomJS. This stack can then be utilized for advanced web crawling tasks, including executing JavaScript.

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