问题
I'm having an issue crawling pages on Amazon.
I've tried using:
- Executing JS Script
- Action Chains
- Explicit Waits
Nothing seems to work. Everything throws one exception or error or another.
Base Script
ff = create_webdriver_instance()
ff.get('https://www.amazon.ca/gp/goldbox/ref=gbps_ftr_s-3_4bc8_dct_10-?gb_f_c2xvdC0z=sortOrder:BY_SCORE,discountRanges:10-25%252C25-50%252C50-70%252C70-&pf_rd_p=f5836aee-0969-4c39-9720-4f0cacf64bc8&pf_rd_s=slot-3&pf_rd_t=701&pf_rd_i=gb_main&pf_rd_m=A3DWYIK6Y9EEQB&pf_rd_r=CQ7KBNXT36G95190QJB1&ie=UTF8')
next_button = ff.find_element_by_xpath('(//li/a[contains(text(), "Next")])[1]')
Attempt #1: Executing JS
Script
ff.execute_script('arguments[0].scrollIntoView()', next_button)
Error
Element could not be scrolled into view
Attempt #2: Action Chain
Script
actions = ActionChains(ff)
actions.move_to_element(next_button)
actions.click(next_button)
actions.perform()
Error
TypeError: rect is undefined
Attempt #3: Explicit Wait
next_button = WebDriverWait(ff, 60).until(
EC.visibility_of_element_located((By.XPATH, '(//li/a[contains(text(), "Next")])[1]'))
)
I've also tried using element_to_be_clickable
. Both of these end up timing out.
回答1:
That's because you're trying to handle hidden link. Try below instead
next_button = ff.find_element_by_partial_link_text('Next')
next_button.click()
or
next _button = ff.find_element_by_link_text('Next→')
Note that find_element_by_partial_link_text
/find_element_by_link_text
searching for visible links only.
Also you might need to call
ff.implicitly_wait(10)
once in your script (somewhere after your WebDriver instance definition) or use ExplicitWait as below
from selenium.webdriver.common.by import By
from selenium.webdriver.support.ui import WebDriverWait
from selenium.webdriver.support import expected_conditions as EC
next_button = WebDriverWait(ff, 10).until(EC.element_to_be_clickable((By.LINK_TEXT, 'Next→')))
to be sure that required element will be find even with rendering delay
来源:https://stackoverflow.com/questions/52356838/issue-crawling-amazon-element-cannot-be-scrolled-into-view