Ruby Watir Gem，表单输入超时 [英] Ruby Watir Gem, Timing Out on Form Input

问题描述

我正在使用 Watir、Mechanize 和 Nokigiri gems 练习网页抓取.

I'm practicing webscraping using Watir, Mechanize and Nokigiri gems.

我的 Watir 脚本遇到了问题.我的计划是通过 http://tripadvisor.com/ 获取航班价格列表.当我运行脚本时，Chrome 浏览器会按原样打开，脚本继续填写表单的第一部分、来源和目的地，然后停止.这是我收到的错误消息:

I'm running into an issue with my Watir script. My plan is to get a list of prices from flights via http://tripadvisor.com/. When I run the script, the Chrome browser opens as it should, the script proceeds to fill out the first parts of the form, origin and destination and then it halts. Here is the error message I'm getting:

This code has slept for the duration of the default timeout waiting for an Element to be present. If the test is still passing, consider using Element#exists? instead of rescuing UnknownObjectException
/home/jaffejoe/.rbenv/versions/2.4.0/lib/ruby/gems/2.4.0/gems/watir-6.2.0/lib/watir/elements/element.rb:515:in `rescue in wait_for_present': element located, but timed out after 30 seconds, waiting for true condition on #<Watir::Input: located: true; {:name=>"rt_leaveday", :tag_name=>"input"}> (Watir::Exception::UnknownObjectException)
    from /home/jaffejoe/.rbenv/versions/2.4.0/lib/ruby/gems/2.4.0/gems/watir-6.2.0/lib/watir/elements/element.rb:505:in `wait_for_present'
    from /home/jaffejoe/.rbenv/versions/2.4.0/lib/ruby/gems/2.4.0/gems/watir-6.2.0/lib/watir/elements/element.rb:522:in `wait_for_enabled'
    from /home/jaffejoe/.rbenv/versions/2.4.0/lib/ruby/gems/2.4.0/gems/watir-6.2.0/lib/watir/elements/element.rb:534:in `wait_for_writable'
    from /home/jaffejoe/.rbenv/versions/2.4.0/lib/ruby/gems/2.4.0/gems/watir-6.2.0/lib/watir/elements/element.rb:639:in `element_call'
    from /home/jaffejoe/.rbenv/versions/2.4.0/lib/ruby/gems/2.4.0/gems/watir-6.2.0/lib/watir/elements/element.rb:303:in `send_keys'
    from watir_test.rb:8:in `<main>' </

这是我的代码:

require 'watir'

browser = Watir::Browser.new

browser.goto('https://tripadvisor.com/CheapFlightsHome')
browser.input(name: 'orig').send_keys('Boston, MA - Logan International Airport (BOS)')
browser.input(name: 'dest').send_keys('Milan, Italy - All Airports (MIL)')
browser.input(name: 'rt_leaveday').send_keys('1')
browser.input(name: 'rt_leavemonth').send_keys('06/2017')
browser.input(name: 'retday').send_keys('30')
browser.input(name: 'leavemonth').send_keys('06/2017')
browser.input(value: 'Search Flights').click
puts browser.url
browser.quit

推荐答案

无法在 rt_leaveday 或 rt_leavemonth 上设置值，因为它们是隐藏输入.但是你可以执行一个脚本来点击dateselector:

It can't set value on the rt_leaveday or rt_leavemonth because they are hidden inputs. But you can execute a script to click on dateselector:

require 'watir'

browser = Watir::Browser.new

browser.goto('https://tripadvisor.com/CheapFlightsHome')
browser.text_field(name: 'orig').set('Boston, MA - Logan International Airport (BOS)')
browser.text_field(name: 'dest').set('Milan, Italy - All Airports (MIL)')
browser.execute_script('document.querySelector(".in_date").click()')
browser.execute_script('document.querySelector(".day_28").click()')
browser.execute_script('document.querySelector(".out_date").click()')
browser.execute_script('document.querySelector(".day_2").click()')
browser.span(id: "CHECK_FARES_BUTTON").fire_event :click
puts browser.url
browser.quit
=> https://www.tripadvisor.com/CheapFlightsSearchResults-g187849-a_airport0.BOS-a_airport1.MIL-a_cos.0-a_date0.20170328-a_date1.20170402-a_nearby0.no-a_nearby1.no-a_nonstop.no-a_pax0.a-a_travelers.1-Milan_Lombardy.html

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