爬虫之selenium对cookie的处理

selenium能够帮助我们处理页面中的cookie，比如获取、删除。

1.1 获取cookie

driver.get_cookies()返回列表，其中包含的是完整的cookie信息！不光有name、value，还有domain等cookie其他维度的信息。所以如果想要把获取的cookie信息和requests模块配合使用的话，需要转换为name、value作为键值对的cookie字典

# 获取当前标签页的全部cookie信息
print(driver.get_cookies())
# 把cookie转化为字典
cookies_dict = {cookie[‘name’]: cookie[‘value’] for cookie in driver.get_cookies()}

1.2 删除cookie

#删除一条cookie
driver.delete_cookie("CookieName")

# 删除所有的cookie
driver.delete_all_cookies()

获取cookie示例代码：

from selenium import webdriver

url = 'http://www.baidu.com'
driver = webdriver.Chrome()
driver.get(url)
print(driver.get_cookies())
# cookies = {}
cookies = {cookie['name']:cookie['value'] for cookie in driver.get_cookies()}
print(cookies)

运行效果：

删除cookie示例代码：

from selenium import webdriver

url = 'http://www.baidu.com'
driver = webdriver.Chrome()
driver.get(url)
print(driver.get_cookies())
# cookies = {}
cookies = {cookie['name']: cookie['value'] for cookie in driver.get_cookies()}
print(cookies)

# #  删除cookie值, 下面这种写法是删除不了cookies值的
# driver.delete_cookie('BA_HECTOR')
# cookies = driver.delete_cookie('BA_HECTOR')
# print(cookies)

#  删除cookie值，这样写才可以删除cookies值
driver.delete_cookie('BA_HECTOR')
cookies = {cookie['name']: cookie['value'] for cookie in driver.get_cookies()}
print(cookies)

#  删除所有的cookie值
driver.delete_all_cookies()
cookies = {cookie['name']: cookie['value'] for cookie in driver.get_cookies()}
print(cookies)

运行效果：