selenium如何处理H5视频

selenium处理H5视频主要使用的是javascript，javascript函数有内置的对象叫arguments，arguments包含了调用的参数组，[0]代表取第一个值。

currentSrc 返回当前音频或视频的URL，如果未设置则返回空字符串。

load() , play() , pause()代表视频的加载，播放，停止。

示例1：

from selenium import webdriver
from time import sleep

dr = webdriver.Chrome()
dr.get('https://www.videojs.com')
dr.implicitly_wait(10)
video = dr.find_element_by_css_selector("#vjs_video_3_html5_api")
url = dr.execute_script("return arguments[0].currentSrc;",video)
print(url)
print("start")
dr.execute_script("return arguments[0].play()",video)
sleep(10)
print('stop')
dr.execute_script("return arguments[0].pause()",video)
dr.quit()

运行上面代码报错如下：

blob:https://videojs.com/905716de-68da-493b-b78d-0a56ea256ee2
start
Traceback (most recent call last):
  File "js.py", line 11, in <module>
    dr.execute_script("return arguments[0].play()",video)
  File "F:\python3.7\lib\site-packages\selenium\webdriver\remote\webdriver.py", line 635, in execute_script
    'args': converted_args})['value']
  File "F:\python3.7\lib\site-packages\selenium\webdriver\remote\webdriver.py", line 320, in execute
    self.error_handler.check_response(response)
  File "F:\python3.7\lib\site-packages\selenium\webdriver\remote\errorhandler.py", line 242, in check_response
    raise exception_class(message, screen, stacktrace)
selenium.common.exceptions.JavascriptException: Message: javascript error: play() failed because the user didn't interact with the document first. https://goo.gl/xX8pDD
  (Session info: chrome=83.0.4103.61)

解决思路，模拟手动点击播放

from selenium import webdriver
from time import sleep

dr = webdriver.Chrome()
dr.get('https://www.videojs.com')
dr.implicitly_wait(10)
video = dr.find_element_by_css_selector("#vjs_video_3_html5_api")
url = dr.execute_script("return arguments[0].currentSrc;",video)
print(url)
print("start")
js = "document.querySelector('#vjs_video_3 > div.vjs-poster').click()"
dr.execute_script(js)

sleep(15)
print('stop')
dr.execute_script("return arguments[0].pause()",video)
dr.quit()

结果：

blob:https://videojs.com/3d283b74-9f8e-4573-9820-d805ce938195
start
stop

***Repl Closed***