Question

我正在学习使用Selenium进行网络抓取。我正在使用的网站有几个问题：

-该网站有多个页面要翻阅，我似乎找不到找到定位页面路径并翻阅它们的方法。例如，以下代码将link_page作为NoneType返回。

from selenium import webdriver

import time
driver = webdriver.Chrome('chromedriver')

driver.get('https://www.oddsportal.com/soccer/england/premier-league')
time.sleep(0.5)
results_button = driver.find_element_by_xpath('/html/body/div[1]/div/div[2]/div[6]/div[1]/div/div[1]/div[2]/div[1]/div[2]/ul/li[3]/span')
results_button.click()
time.sleep(3)

season_button = driver.find_element_by_xpath('/html/body/div[1]/div/div[2]/div[6]/div[1]/div/div[1]/div[2]/div[1]/div[3]/ul/li[2]/span/strong/a')
season_button.click()

link_page = driver.find_element_by_xpath('/html/body/div[1]/div/div[2]/div[6]/div[1]/div/div[1]/div[2]/div[1]/div[6]/div/a[3]/span').get_attribute('href')
print(link_page.text)
driver.get(link_page)

-由于某些原因，我必须使用results_button才能获得href个匹配项。例如，以下代码尝试直接进入页面（以避开上面的问题1），但是link_page返回一个NoSuchElementException错误。

from selenium import webdriver
import time

driver = webdriver.Chrome('chromedriver')
driver.get('https://www.oddsportal.com/soccer/england/premier-league/results/#/page/2')
time.sleep(3)

link_page = driver.find_element_by_xpath('/html/body/div[1]/div/div[2]/div[6]/div[1]/div/div[1]/div[2]/div[1]/div[6]/table/tbody/tr[11]/td[2]/a').get_attribute('href')
print(link_page.text)
driver.get(link_page)

Answer 1

要使用Selenium查找要翻页的页面，您需要为visibility_of_all_elements_located()引入WebDriverWait，并且可以使用以下Locator Strategies：

使用XPATH：

driver.get('https://www.oddsportal.com/soccer/england/premier-league/')
WebDriverWait(driver, 20).until(EC.element_to_be_clickable((By.XPATH, "//a[text()='RESULTS']"))).click()
WebDriverWait(driver, 20).until(EC.element_to_be_clickable((By.XPATH, "//a[text()='2018/2019']"))).click()
print([my_elem.get_attribute("href") for my_elem in WebDriverWait(driver, 10).until(EC.visibility_of_all_elements_located((By.XPATH, "//span[@class='active-page']//following::a[@x-page]/span[not(contains(., '|')) and not(contains(., '»'))]/..")))])

控制台输出：

['https://www.oddsportal.com/soccer/england/premier-league-2018-2019/results/#/page/2/', 'https://www.oddsportal.com/soccer/england/premier-league-2018-2019/results/#/page/3/', 'https://www.oddsportal.com/soccer/england/premier-league-2018-2019/results/#/page/4/', 'https://www.oddsportal.com/soccer/england/premier-league-2018-2019/results/#/page/5/', 'https://www.oddsportal.com/soccer/england/premier-league-2018-2019/results/#/page/6/', 'https://www.oddsportal.com/soccer/england/premier-league-2018-2019/results/#/page/7/', 'https://www.oddsportal.com/soccer/england/premier-league-2018-2019/results/#/page/8/']

注意：您必须添加以下导入：

from selenium.webdriver.support.ui import WebDriverWait
from selenium.webdriver.common.by import By
from selenium.webdriver.support import expected_conditions as EC

使用Selenium和Python抓取网站时无法找到分页链接

1 个答案: