Webdext

Webdext插件简介

Webdext插件描述

Webdext is an intelligent web data extract. It allows you to extract data from web pages without coding your own scraper. Currently, it only suppt data extraction from web pages containing a list of objects such as product listing, news listing, search result, etc.

Features:
1. Extract list data automatically. Just open the web page, wait until all target elements are loaded, then click "Intelligent Extract" button.
2. Generate extraction rules. Based on intelligent extraction result, Webdext can generate extraction rules. You can use the extraction rules to extract data from other web pages having the same layout. Data extraction using sted extraction rules will be faster than "Intelligent Extraction" because it doesnt need to find pattern on the web page. Webdext will just execute the rules  display the result.
                                

Webdext插件离线安装方法

1.首先用户点击谷歌浏览器右上角的自定义及控制按钮，在下拉框中选择设置。

2.在打开的谷歌浏览器的扩展管理器最左侧选择扩展程序或直接输入：chrome://extensions/

3.找到自己已经下载好的Chrome离线安装文件xxx.crx，然后将其从资源管理器中拖动到Chrome的扩展管理界面中，这时候用户会发现在扩展管理器的中央部分中会多出一个”拖动以安装“的插件按钮。

4.下载 WebdextChrome插件v0.0.3版本到本地。

5.勾选开发者模式，点击加载已解压的扩展程序，将文件夹选择即可安装插件。

注意：最新版本的chrome浏览器直接拖放安装时会出现“程序包无效CRX-HEADER-INVALID”的报错信息，参照这篇文章即可解决