Headless Chrome 导航到页面，点击链接页面，然后 printToPDF

Question

我必须打印从产品信息页面链接到的所有 HTML 页面： http://prod.adv-bio.com/ProductDetail.aspx?ProdNo=1197

我已经设置了一个测试脚本，看看我是否可以只对其中一个 HTML 文件执行此操作。我使用了 PyChromeDevTools 和 Selenium，希望可以在使用 Selenium 的同时使用 DevTools 中的 printToPDF 功能来点击我需要点击的链接。

这是我目前的代码：

import requests
import time
import re
import websocket
import PyChromeDevTools
from bs4 import BeautifulSoup
from selenium import webdriver
from selenium.webdriver.common.keys import Keys
from selenium.webdriver.common.action_chains import ActionChains
from selenium.webdriver.common.by import By
from selenium.webdriver.chrome.options import Options


chrome_options = Options()
chrome_options.add_argument('--headless')
chrome_options.add_argument('--remote-debugging-port=9222')
chrome_options.add_argument('--window-size=1200x600')
chrome_options.add_argument('--disable-gpu')




driver = webdriver.Chrome('C:\\Users\\me\\AppData\\Local\\Programs\\Python\\Python36-    32\\selenium\\webdriver\\chromedriver_win32\\chromedriver.exe',         chrome_options = chrome_options)
driver.get("http://prod.adv-bio.com/ProductDetail.aspx?ProdNo=1197")

browser = PyChromeDevTools.ChromeInterface()
browser.Network.enable()
browser.Page.enable()
driver.implicitly_wait(20)                                                                 



driver.get("http://prod.adv-bio.com/ProductDetail.aspx?ProdNo=1197")
time.sleep(3)
url = driver.find_element_by_partial_link_text("Continuing")
time.sleep(3)
ActionChains(driver).click(url).perform()
time.sleep(3)


Page.printToPDF()

time.sleep(5)

我收到了这个错误

Traceback (most recent call last):
  File "C:\Users\me\SOtestfile.py", line 29, in <module>
    driver = webdriver.Chrome('C:\\Python27\\Lib\\site-
packages\\chromedriver_win32\\chromedriver.exe', chrome_options = 
chromeOptions, desired_capabilities=capabilities)
  File "C:\Python27\lib\site-packages\selenium\webdriver\chrome\webdriver.py", line 69, in __init__
desired_capabilities=desired_capabilities)
  File "C:\Python27\lib\site-packages\selenium\webdriver\remote\webdriver.py", line 98, in __init__
    self.start_session(desired_capabilities, browser_profile)
  File "C:\Python27\lib\site-packages\selenium\webdriver\remote\webdriver.py", line 188, in start_session
    response = self.execute(Command.NEW_SESSION, parameters)
  File "C:\Python27\lib\site-packages\selenium\webdriver\remote\webdriver.py", line 256, in execute
    self.error_handler.check_response(response)
  File "C:\Python27\lib\site-packages\selenium\webdriver\remote\errorhandler.py", line 194, in check_response
    raise exception_class(message, screen, stacktrace)
WebDriverException: Message: chrome not reachable
  (Driver info: chromedriver=2.31.488763 (092de99f48a300323ecf8c2a4e2e7cab51de5ba8),platform=Windows NT 6.1.7601 SP1 x86_64)

我已将 chromedriver 更新到 2.31 并拥有 chrome 版本 60，我应该使用 canary 吗？感谢您对此提供的任何帮助。

Answer 1

from selenium.webdriver.common.desired_capabilities import 
DesiredCapabilities    

chromeOptions = webdriver.ChromeOptions()
chromeOptions.add_argument("headless")
chromeOptions.add_argument("window-size=1366,768")

capabilities = DesiredCapabilities.CHROME.copy()
capabilities["browserName"] = "chrome"

driver = webdriver.Chrome(chrome_options=chromeOptions,
desired_capabilities=capabilities)

在这里工作！！ （Chrome 60 + Chromedriver 2.31）希望这会有所帮助！