How to get contents of frames automatically if browser does not support frames + can't access frame directly
来源： https://stackoverflow.com/questions/24841632/how-to-get-contents-of-frames-automatically-if-browser-does-not-support-frames
mechanize
How to get contents of frames automatically if browser does not support frames + can't access frame directly
来源： https://stackoverflow.com/questions/24841632/how-to-get-contents-of-frames-automatically-if-browser-does-not-support-frames
How to get contents of frames automatically if browser does not support frames + can't access frame directly
来源： https://stackoverflow.com/questions/24841632/how-to-get-contents-of-frames-automatically-if-browser-does-not-support-frames
How to get contents of frames automatically if browser does not support frames + can't access frame directly
来源： https://stackoverflow.com/questions/24841632/how-to-get-contents-of-frames-automatically-if-browser-does-not-support-frames
用Python写网络爬虫PDF高清完整版免费下载|百度云盘
百度云盘：用Python写网络爬虫PDF高清完整版免费下载 提取码：iix7 内容简介 作为一种便捷地收集网上信息并从中抽取出可用信息的方式，网络爬虫技术变得越来越有用。使用Python这样的简单编程语言，你可以使用少量编程技能就可以爬取复杂的网站。 《用Python写网络爬虫》作为使用Python来爬取网络数据的杰出指南，讲解了从静态页面爬取数据的方法以及使用缓存来管理服务器负载的方法。此外，本书还介绍了如何使用AJAX URL和Firebug扩展来爬取数据，以及有关爬取技术的更多真相，比如使用浏览器渲染、管理cookie、通过提交表单从受验证码保护的复杂网站中抽取数据等。本书使用Scrapy创建了一个高级网络爬虫，并对一些真实的网站进行了爬取。 《用Python写网络爬虫》介绍了如下内容： 通过跟踪链接来爬取网站； 使用lxml从页面中抽取数据； 构建线程爬虫来并行爬取页面； 将下载的内容进行缓存，以降低带宽消耗； 解析依赖于JavaScript的网站； 与表单和会话进行交互； 解决受保护页面的验证码问题； 对AJAX调用进行逆向工程； 使用Scrapy创建高级爬虫。 本书读者对象 本书是为想要构建可靠的数据爬取解决方案的开发人员写作的，本书假定读者具有一定的Python编程经验。当然，具备其他编程语言开发经验的读者也可以阅读本书，并理解书中涉及的概念和原理。 作者简介
How to send JavaScript and Cookies Enabled in Scrapy?
问题 I am scraping a website using Scrapy which require cooking and java-script to be enabled. I don't think I will have to actually process javascript. All I need is to pretend as if javascript is enabled. Here is what I have tried: 1) Enable Cookies through following in settings COOKIES_ENABLED = True COOKIES_DEBUG = True 2) Using download middleware for cookies DOWNLOADER_MIDDLEWARES = { 'scrapy.contrib.downloadermiddleware.useragent.UserAgentMiddleware': 400, 'scrapy.contrib
How to send JavaScript and Cookies Enabled in Scrapy?
问题 I am scraping a website using Scrapy which require cooking and java-script to be enabled. I don't think I will have to actually process javascript. All I need is to pretend as if javascript is enabled. Here is what I have tried: 1) Enable Cookies through following in settings COOKIES_ENABLED = True COOKIES_DEBUG = True 2) Using download middleware for cookies DOWNLOADER_MIDDLEWARES = { 'scrapy.contrib.downloadermiddleware.useragent.UserAgentMiddleware': 400, 'scrapy.contrib
Perl Mechanize : Get the response page after the page is modified?
问题 I am trying to retrieve a page which uses js and database to load. The loading takes about 2 to 3 mins. I am able to get the page where it would show "Please wait 2 to 3 mins for the page to be loaded." But not able to retrieve the page after it is loaded. I have already tried the following: 1.) Using mirror method in the Mechanize. But the response content is not decoded. Hence the file is gibberish. (Also tried to write a similar method as mirror method which would decode the response
How to login and crawl a site using Mechanize
问题 I'm trying to use Mechanize to login and crawl a site. For some reason, I can't seem to get the login function to work. Any ideas? This is my code: require 'nokogiri' require 'open-uri' require 'mechanize' a = Mechanize.new a.get('https://jackthreads.com/') form = a.page.form_with(:class => 'jt-form') form.field_with(:name => "email").value = "email" form.field_with(:name => "password21").value = "password" page = a.submit(form, form.buttons.first) 回答1: The action on the form is set to " # ",
Perl Mechanize timeout not working with https
问题 I've been using Perl's Mechanize library but for some reason with https the timeout parameter (I'm using Crypt::SSLeay for SSL). my $browser = WWW::Mechanize->new(autocheck=>0, timeout=>3); Has anyone encountered this before and knows how to fix it? Thanks! 回答1: For HTPS/SSL you have to do some workaround: my $html = `wget -q -t 1 -T $timeout -O - $url`; mech->get(0); $mech->update_html($html); 回答2: In just testing it now against https://www.sourceforge.net/, I get the impression that the