using System; using System.Collections.Generic; using System.Web; using System.Text; using System.Net; using System.IO; using System.Text.RegularExpressions; using System.Collections; using System.IO.Compression; /// <summary> ///Name:网页抓取类 ///Autho
CasperJS is a navigation scripting & testing utility for the PhantomJS (WebKit) and SlimerJS (Gecko) headless browsers, written in Javascript. PhantomJS是基于WebKit内核的headless browser SlimerJS则是基于Gecko内核的headless browser Headless browser: 无界面显示的浏览器,可以用于
Nutch网页抓取速度优化 Here are the things that could potentially slow down fetching 1) DNS setup 2) The number of crawlers you have, too many, too few. 3) Bandwidth limitations 4) Number of threads per host (politeness) 5) Uneven distribution of urls to fetc
我的数据通过一个TextBox输入,这些代码是写在一个button的点击事件里的. 网页数据抓取大概分为两步,第一步是获取网页源代码: 具体注释如下: var currentUrl = TextBox1.Text;//获得要抓取的网页的URL地址 var request = WebRequest.Create(currentUrl) as HttpWebRequest;//请求对象 var response=request.GetResponse()as HttpW