我目前正在尝试使用硒和BeautifulSoup从网站检索所有iframe标签。问题是我没有得到所有的iframe,因为在BS4中没有搜索的网页中存在内部html文档,而且我不认为javascript正在HTML中执行,因此可能有些HTML元素没有被渲染。是否有一个网络抓取工具,该工具可让我请求url,检索完全js呈现的HTML文件,然后搜索DOM并获取与iframe匹配的所有标签,即使在内部HTML代码中也是如此。
基本上,我能够在chrome inspector工具中看到我想要的所有标签,但它们没有显示在从BS4中的find_all('iframe')函数检索的列表中。
这是我的代码:
from bs4 import BeautifulSoup
import requests
from selenium import webdriver
browser = webdriver.Chrome('C:/Users/G/chromedriver.exe')
browser.get("https://reddit.com")
HTML = browser.page_source
innerHTML = browser.execute_script("return document.body.innerHTML")
page = BeautifulSoup(innerHTML, 'html.parser')
for iframe in page.find_all('iframe'):
print(iframe)
browser.close()
您可以使用以下代码块<iframe>
专门获取所有标签Selenium
:
from selenium import webdriver
browser = webdriver.Firefox(executable_path=r'C:\Utility\BrowserDrivers\geckodriver.exe')
browser.get("https://reddit.com")
frames_tag = browser.find_elements_by_tag_name("iframe")
frames_xpath = browser.find_elements_by_xpath("//iframe")
frames_css = browser.find_elements_by_css_selector("iframe")
print("Frames detected through iframe tag are %s" %frames_tag)
print("Frames detected through xpath are %s" %frames_xpath)
print("Frames detected through css are %s" %frames_css)
browser.quit()
我的控制台上的输出是:
Frames detected through iframe tag are [<selenium.webdriver.firefox.webelement.FirefoxWebElement (session="98594106-54a6-4941-a6ab-cd9d92e9afa2", element="ead39d06-0e39-4b40-9425-a86a1fe88d4f")>, <selenium.webdriver.firefox.webelement.FirefoxWebElement (session="98594106-54a6-4941-a6ab-cd9d92e9afa2", element="1ce10f29-a620-4ce6-90e1-9da563046c70")>, <selenium.webdriver.firefox.webelement.FirefoxWebElement (session="98594106-54a6-4941-a6ab-cd9d92e9afa2", element="ba8493e4-8246-47a0-9ed4-3f51b8c0f133")>, <selenium.webdriver.firefox.webelement.FirefoxWebElement (session="98594106-54a6-4941-a6ab-cd9d92e9afa2", element="19c0f134-c243-47bd-96d1-6b06ff66a011")>, <selenium.webdriver.firefox.webelement.FirefoxWebElement (session="98594106-54a6-4941-a6ab-cd9d92e9afa2", element="95d78fa6-fb4f-4b7c-89c5-9b85965f0e4c")>, <selenium.webdriver.firefox.webelement.FirefoxWebElement (session="98594106-54a6-4941-a6ab-cd9d92e9afa2", element="e6d2d931-1f35-432f-8825-052e244fe798")>]
Frames detected through xpath are [<selenium.webdriver.firefox.webelement.FirefoxWebElement (session="98594106-54a6-4941-a6ab-cd9d92e9afa2", element="ead39d06-0e39-4b40-9425-a86a1fe88d4f")>, <selenium.webdriver.firefox.webelement.FirefoxWebElement (session="98594106-54a6-4941-a6ab-cd9d92e9afa2", element="1ce10f29-a620-4ce6-90e1-9da563046c70")>, <selenium.webdriver.firefox.webelement.FirefoxWebElement (session="98594106-54a6-4941-a6ab-cd9d92e9afa2", element="ba8493e4-8246-47a0-9ed4-3f51b8c0f133")>, <selenium.webdriver.firefox.webelement.FirefoxWebElement (session="98594106-54a6-4941-a6ab-cd9d92e9afa2", element="19c0f134-c243-47bd-96d1-6b06ff66a011")>, <selenium.webdriver.firefox.webelement.FirefoxWebElement (session="98594106-54a6-4941-a6ab-cd9d92e9afa2", element="95d78fa6-fb4f-4b7c-89c5-9b85965f0e4c")>, <selenium.webdriver.firefox.webelement.FirefoxWebElement (session="98594106-54a6-4941-a6ab-cd9d92e9afa2", element="e6d2d931-1f35-432f-8825-052e244fe798")>]
Frames detected through css are [<selenium.webdriver.firefox.webelement.FirefoxWebElement (session="98594106-54a6-4941-a6ab-cd9d92e9afa2", element="ead39d06-0e39-4b40-9425-a86a1fe88d4f")>, <selenium.webdriver.firefox.webelement.FirefoxWebElement (session="98594106-54a6-4941-a6ab-cd9d92e9afa2", element="1ce10f29-a620-4ce6-90e1-9da563046c70")>, <selenium.webdriver.firefox.webelement.FirefoxWebElement (session="98594106-54a6-4941-a6ab-cd9d92e9afa2", element="ba8493e4-8246-47a0-9ed4-3f51b8c0f133")>, <selenium.webdriver.firefox.webelement.FirefoxWebElement (session="98594106-54a6-4941-a6ab-cd9d92e9afa2", element="19c0f134-c243-47bd-96d1-6b06ff66a011")>, <selenium.webdriver.firefox.webelement.FirefoxWebElement (session="98594106-54a6-4941-a6ab-cd9d92e9afa2", element="95d78fa6-fb4f-4b7c-89c5-9b85965f0e4c")>, <selenium.webdriver.firefox.webelement.FirefoxWebElement (session="98594106-54a6-4941-a6ab-cd9d92e9afa2", element="e6d2d931-1f35-432f-8825-052e244fe798")>]
本文收集自互联网,转载请注明来源。
如有侵权,请联系 [email protected] 删除。
我来说两句