instance_methods(false)
輸出Mechanize模塊的全部方法官方文檔html
模擬Google搜索cookie
Ruby中實現網頁抓取,通常用的是mechanize,使用很是簡單。google
安裝spa
sudo gem install mechanize
抓取網頁.net
require 'rubygems' require 'mechanize' agent = Mechanize.new page = agent.get('http://google.com/')
模擬點擊事件
page = agent.page.link_with(:text => 'News').click
模擬表單提交
google_form = page.form('f') google_form["q"] = 'ruby mechanize' page = agent.submit(google_form, google_form.buttons.first) pp page
分析頁面,mechanize用的是nokogiri解析網頁的,因此能夠參照nokogiri的文檔
table = page.search('a') text = table.inner_text puts text
有幾點注意的地方: 若是須要先登陸的網頁,那麼能夠在網站先登陸,登陸後記錄JSESSIONID,而後賦值給agent
cookie = Mechanize::Cookie.new("JSESSIONID", "BA58528B76124698AD033EE6DF12B986:-1") cookie.domain = "datamirror.csdb.cn" cookie.path = "/" agent.cookie_jar.add!(cookie)
若是須要保存網頁,使用.save_as,(或許save也能夠,我沒試過)例如
agent.get("http://google.com").save_as
轉載自:http://www.cnblogs.com/Stoned/archive/2012/02/23/2364389.html