关于selenium加载用户文件保持登录状态

 如下脚本是一个微博用selenium'自动化登录的简单例子

import time
from selenium import webdriver
from loguru import logger
from selenium.webdriver.chrome.options import Options
from selenium.webdriver.common.by import By
from selenium.webdriver.support import expected_conditions as EC
from selenium.webdriver.support.wait import WebDriverWait  # 等待页面加载某些元素

# todo 线上线下的需要改值
local = True
logger.add('running.log', rotation='00:00')

if local:
    path = ".//chromedriver"
else:
    path = "/root/selenium_env/chromedriver"




chrome_options = Options()
# 本地在调的时候，可以用由头浏览器
if not local:
    chrome_options.add_argument('--headless')
chrome_options.add_argument('--no-sandbox')
chrome_options.add_argument('--disable-dev-shm-usage')

chrome_options.add_argument('--window-size=1920,1080')
chrome_options.add_experimental_option("excludeSwitches", ["enable-automation"])
chrome_options.add_experimental_option('useAutomationExtension', False)
# 用来可以读取浏览器配置
chrome_options.add_argument(r'--user-data-dir=C:\Users\tjp40922\AppData\Local\Google\Chrome\User Data')
bro = webdriver.Chrome(options=chrome_options)
# 在访问url之前就要执行，以隐藏浏览器指纹
bro.execute_cdp_cmd("Page.addScriptToEvaluateOnNewDocument", {
    "source": """
      Object.defineProperty(navigator, 'webdriver', {
        get: () => undefined
      })
    """
})
# 创建隐式等待对象
wait = WebDriverWait(bro, 15)
# 访问微博搜索页面，拿到预登陆的cookie
# bro.get('https://weibo.com/login.php')
bro.get('https://weibo.com')
pre_cookies = bro.get_cookies()
time.sleep(50)


def login():
    try:
        #
        # 输入用户名和密码
        # 用户名
        wait.until(EC.presence_of_element_located((By.XPATH, "//div[@class='input_wrap']/input[@id='loginname']")))
        user = bro.find_element_by_xpath("//div[@class='input_wrap']/input[@id='loginname']")
        user.clear()
        user.send_keys("xxxxxxxxxxxxxxxxxxxxx")
        logger.info("用户名输入完成")
        time.sleep(5)
        bro.save_screenshot("username.png")

        # 密码
        wait.until(EC.presence_of_element_located((By.XPATH, "//div[@class='input_wrap']/input[@type='password']")))
        pass_Word = bro.find_element_by_xpath("//div[@class='input_wrap']/input[@type='password']")
        pass_Word.clear()
        pass_Word.send_keys("xxxxxxxxxxxxxxxxxxx")
        logger.info("密码输入完成")
        time.sleep(6)
        bro.save_screenshot("password.png")

        # 点击登录按钮
        wait.until(EC.presence_of_element_located((By.XPATH, "//div[@class='info_list login_btn']/a/span")))
        log_btn = bro.find_element_by_xpath("//div[@class='info_list login_btn']/a/span")
        log_btn.click()
        logger.info("登录按钮点击完成")
        time.sleep(8)
        bro.save_screenshot("yanzhengma1.png")

        code = input("请输入验证码:").strip()
        # 输入验证码
        wait.until(EC.presence_of_element_located((By.XPATH, "//input[@node-type='verifycode']")))
        verifycode = bro.find_element_by_xpath("//input[@node-type='verifycode']")
        verifycode.clear()
        verifycode.send_keys(code)
        time.sleep(6)
        logger.info("输入验证码完成")
        time.sleep(5)
        bro.save_screenshot("yanzhengma2.png")

        # 再次点击登录
        wait.until(EC.presence_of_element_located((By.XPATH, "//div[@class='info_list login_btn']/a/span")))
        log_btn = bro.find_element_by_xpath("//div[@class='info_list login_btn']/a/span")
        log_btn.click()
        logger.info("再次登录按钮点击完成")
        time.sleep(20)
        bro.save_screenshot("islogin.png")
        time.sleep(50)
        bro.save_screenshot("last_loin.png")
        time.sleep(120)
        bro.quit()
    except:
        bro.quit()


if __name__ == '__main__':
    login()

　　　其中重要的就是option添加--user-data-dir，加载正常浏览器的缓存目录，包含用户的登录信息等（）

chrome_options.add_argument(r'--user-data-dir=C:\Users\xxxxxxxxxx\Chrome\User Data')

　　注意：当加载用户目录，正常用户打开的浏览器都要关掉，否则会报错

 　　这个用户目录在哪里看?

chrome://version/