Shulou(Shulou.com)06/01 Report--

In this issue, the editor will bring you about the six Chrome plug-ins that must be used in crawler tools. The article is rich in content and analyzes and describes for you from a professional point of view. I hope you can get something after reading this article.

In view of the power of Chrome browsers, many powerful plug-ins in the Chrome online app store can help us crawl data quickly and efficiently.

The 6 Chrome plug-ins recommended today can greatly improve our crawler efficiency.

EditThisCookie

EditThisCookie is a Cookie manager that makes it easy to add, delete, edit, search, lock and block Cookies.

You can save the logged-in Cookies locally and crawl the logged-in data directly with the help of cookielib library.

Avoid grabbing packages and simulated login, which helps us to crawl quickly.

Web Scraper

Web Scraper is a free crawler tool that works for anyone and doesn't have any programming foundation.

The operation is simple, as long as mouse click and simple configuration, you can quickly crawl the data on the Web side.

It supports complex website structure, and the data supports various data types, such as text, connection, data block, drop-down load data block, and so on.

In addition, the crawled data can be exported to a CSV file.

Xpath Helper

Xpath Helper is a structured web page element selector that supports list and single-node data acquisition

It can quickly locate web page elements.

Compared to Beautiful Soup, Xpath has more advantages in finding Web page elements; Xpath is more convenient to write than regular expressions.

After writing the Xpath, the number of matches and the corresponding positions are displayed in real time, which makes it easy for us to judge whether the statement is written correctly.

Toggle JavaScript

The Toggle JavaScript plug-in can be used to detect which elements of the current web page are loaded dynamically through AJAX.

Use it to quickly switch between allowing loading of JS and disabling loading of JS.

User-Agent Switcher for Chrome

The User-Agent Switcher for Chrome plug-in can easily modify the browser's User-Agent.

You can simulate different browsers and clients, including Android and IOS, to simulate requests.

For some special websites, switching User-Agent makes it easier to crawl data.

JSON-handle

JSON-handle is a powerful JSON data parsing Chrome plug-in. It presents JSON documents in a simple and clear tree style and can be edited in real time. For the scene with a large amount of data, we can do local selection analysis.

These are the six Chrome plug-ins that must be used in the crawler tools that Xiaobian shares with you. If you happen to have similar doubts, please refer to the above analysis to understand. If you want to know more about it, you are welcome to follow the industry information channel.

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