红宝石硒中的StaleElementReferenceError

Question

我试图自动化 rediff.com 。我从一页转到另一页，但是当我回来时，我得到了 staleException 。我尝试了很多但无法修复它。 我也附上了代码 sn-p。任何帮助将不胜感激。

@driver.get "http://shopping.rediff.com/?sc_cid=inhome_icon"

@driver.manage.window.maximize

wait = Selenium::WebDriver::Wait.new(:timeout => 10) # 秒

开始

element = wait.until { @driver.find_element(:xpath,".//*[@id='popular_cat']") }

确保

box=@driver.find_element(:xpath,".//*[@id='popular_cat']")

结束 链接=box.find_elements(:tag_name,"a")

puts "总链接数：#{links.size}"

links.each 做|i|

  puts "--------------------"
  puts "Value of all links is:#{i.text}"
  i.click
  puts "Title of page is :#{@driver.title}"
  @driver.get "http://shopping.rediff.com/?sc_cid=inhome_icon"
  box=@driver.find_element(:xpath,".//*[@id='popular_cat']")
  links=box.find_elements(:tag_name,"a")

end

Answer 1

每次您重新加载页面时（因为您要转到其他页面然后返回或因为您只是重新加载了页面）您对链接 'links=box.find_elements(:tag_name,"a")' 的引用是丢了。

我建议进行一些更改以解决此问题（可能不是最佳解决方案）

links = box.find_elements(:tag_name,"a").size links_counter = 0 while links_counter < links box = @driver.find_element(:xpath,".//*[@id='popular_cat']") current_link = box.find_elements(:tag_name,"a")[links_counter] links_counter += 1 puts "--------------------" puts "Value of all links is:#{current_link.text}" current_link.click puts "Title of page is :#{@driver.title}" @driver.get "http://shopping.rediff.com/?sc_cid=inhome_icon" end

希望对你有帮助！

最好， 费尔南多