使用selenium python查找动态网站的web元素

Question

我想根据一些字段的web元素（xpath、类等）来刮取它们的文本

<div class = myOnlyElement> <div> ...... <div class = afafasf> ......</div> <div class = klklkl> ...... <div class = qwqwqwq> ...... <div class = reaction> text i need</div> </div> </div> </div> </div> <div class = myElement> <div> ...... <div class = dfdfdf> ......</div> <div class = ghgghghg> ...... <div class = erererere> ...... <div class = reaction> text i don't need</div> </div> </div> </div> </div>

Answer 1

要打印文本我需要的文本，您可以使用以下任一Locator Strategies：

• 使用css_selector和get_attribute()：

  print(driver.find_element_by_css_selector("div.myOnlyElement div.reaction").get_attribute("innerHTML"))
  

• 使用xpath和文本属性：

  print(driver.find_element_by_xpath("//div[@class='myOnlyElement']//div[@class='reaction']").text)
  

---

理想情况下，要打印文本我需要的文本，您必须为visibility_of_element_located()导出WebDriverWait，并且您可以使用以下任一Locator Strategies：

• 使用CSS_SELECTOR和get_attribute()：

  print(WebDriverWait(driver, 20).until(EC.visibility_of_element_located((By.CSS_SELECTOR, "div.myOnlyElement div.reaction"))).get_attribute("innerHTML"))
  

• 使用XPATH和文本属性：

  print(WebDriverWait(driver, 20).until(EC.visibility_of_element_located((By.XPATH, "//div[@class='myOnlyElement']//div[@class='reaction']"))).text)
  

• 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
  

You can find a relevant discussion in How to retrieve the text of a WebElement using Selenium - Python

---

奥特罗

链接到有用的文档：

• ^{}方法Gets the given attribute or property of the element.
• ^{}属性返回The text of the element.
• Difference between text and innerHTML using Selenium