我正在尝试在
https://www.federalreserve.gov/newsevents/pressreleases.htm
上抓取美联储的新闻稿,并且要抓取前几年的文件,我需要通过单击页面底部的 Next 按钮进入下一页。
我尝试了一些方法,但所有方法都返回
Message: no such element: Unable to locate element:
错误,并且我无法找出问题所在:
#Attempt 1
driver.find_element_by_css_selector('.pagination-next ng-scope').click()
WebDriverWait(driver, 10).until(EC.element_to_be_clickable((By.CSS_SELECTOR, ".pagination-next ng-scope"))).click()
#Attempt 2
driver.find_element_by_xpath("//*[@id='article']/ul[2]/li[7]/a").click()
#Attempt 3
element=WebDriverWait(driver, 20).until(EC.visibility_of_element_located((By.XPATH ,"//*[@id='article']/ul[2]/li[7]/a")))
element.click()
有人可以帮我解决我哪里出错了吗?为了方便起见,Next 按钮的 HTML 为:
<li ng-if="::directionLinks" ng-class="{disabled: noNext()||ngDisabled}" class="pagination-next ng-scope"><a href="" ng-click="selectPage(page + 1, $event)" ng-disabled="noNext()||ngDisabled" uib-tabindex-toggle="" class="ng-binding">Next</a></li>
<a href="" ng-click="selectPage(page + 1, $event)" ng-disabled="noNext()||ngDisabled" uib-tabindex-toggle="" class="ng-binding">Next</a>
谢谢
文本为 Next 的元素是一个
<a>
标签,并且是一个 Angular 元素。
<a href="" ng-click="selectPage(page + 1, $event)" ng-disabled="noNext()||ngDisabled" uib-tabindex-toggle="" class="ng-binding">Next</a>
要单击元素,您需要为 element_to_be_clickable() 引入 WebDriverWait,并且您可以使用以下任一定位器策略:
使用LINK_TEXT:
WebDriverWait(driver, 20).until(EC.element_to_be_clickable((By.LINK_TEXT, "Next"))).click()
使用CSS_SELECTOR:
WebDriverWait(driver, 20).until(EC.element_to_be_clickable((By.CSS_SELECTOR, "li.pagination-next.ng-scope a.ng-binding"))).click()
使用XPATH:
WebDriverWait(driver, 20).until(EC.element_to_be_clickable((By.XPATH, "//a[text()='Next']"))).click()
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