cookie与session 在爬虫中的作用

cookie: 通过在客户端记录信息确定用户的身份
cookie的作用
	反爬
	模拟登陆

cookie.py

# @ Time : 2021/2/22 13:58
# @ Author : Ellen


import requests


# url = 'https://www.zhihu.com/'
# url = 'https://www.zhihu.com/hot'
#
# headers = {
    
    
#             'User-Agent': 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/86.0.4240.75 Safari/537.36', 'cookie': '_zap=e3c3fd42-0b69-43bc-a94b-4088a966817c; _xsrf=1f6ndOrrrYy5KIHeMNdI6NZG9LXiYSHn; d_c0="AeBaJoHMsBKPTsYTL2RHaqKbH219bbtmGRo=|1613882415"; Hm_lvt_98beee57fd2ef70ccdd5ca52b9740c49=1613882415; captcha_session_v2="2|1:0|10:1613882436|18:captcha_session_v2|88:REFBMjBHa1I4VnZRTFNlcGlodUxZR1lNS1BVelFEd0VYSDBWZ1VQRHF4S3RKZUtiM1dQSXRsdjBTNWtaM21Ebg==|a88334f88e873aa847f451587a1ac817e0064de614f423bdf16db621ea5a0a30"; captcha_ticket_v2="2|1:0|10:1613882526|17:captcha_ticket_v2|328:eyJhcHBpZCI6IjIwMTIwMzEzMTQiLCJyZXQiOjAsInRpY2tldCI6InQwM0Q1NWtZckxlTFU1bno4dEtWSFdKbkZBUWhiNkwzNUZLQ3NMeVE4VnZkRXVkWG9zOUo1SDhMLUNSRUN1eDVjZDhKTk1CVTI1NWdfczdCT1VXTGozX01XTTRobVpFLW1wT3lpZVh2TGFtbDRaNG4za0daSU8wNFU2RUFCbEFtNkFfeWF4a3d5dG5fQlBZQWx1bmdyeWVtWVp3bk1PeVE0dVFRbk13OTh0QmJYaUhMY1ZGTTNyR1N3KioiLCJyYW5kc3RyIjoiQDZTUiJ9|1fb6ecadbb76478dfac8f17ae748cab1a5b9c864c0defd3dd3405f5b5a392e6e"; z_c0="2|1:0|10:1613882600|4:z_c0|92:Mi4xLWgzS0tnQUFBQUFCNEZvbWdjeXdFaVlBQUFCZ0FsVk42RElmWVFBOXJIbnFhT2hna2RXNVpHRzkyRG5zdXpEYTJn|c428d12daa7142d5df40641fccb54fa26f863b8e279213c4fd9b69453ec2fbbb"; Hm_lpvt_98beee57fd2ef70ccdd5ca52b9740c49=1613973390; SESSIONID=DXgu9qSsi7rBRSUuP1fM3TbpRa5IpujCwryzjN0nOcu; JOID=V14XAkKDVyqcsUPibIfosFzJdMh6xAtO4YQxtRzmY1zd6xy0HQsXEvi-ROVnpHi3lTPkCQMSLX7uUhf-4GSDevE=; osd=WlwWCkKOVSuUsU7gbY_ovV7IfMh3xgpG4YkztBTmbl7c4xy5HwofEvW8Re1nqXq2nTPpCwIaLXPsUx_-7WaCcvE=; tst=h; KLBRSID=d1f07ca9b929274b65d830a00cbd719a|1613973395|1613972203; tshl='
#         }
# res = requests.get(url, headers=headers)
# print(res.text)

# cookie 反爬

def query():
    headers = {
    
    
        'User-Agent': 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/86.0.4240.75 Safari/537.36',
        'cookie': '_uab_collina=161397416098444804037315; JSESSIONID=4AE304A76954806860F996F40C4D367F; BIGipServerotn=1055916554.50210.0000; RAIL_EXPIRATION=1614315369193; RAIL_DEVICEID=CUtJfv5SUTnIbuD2i7lczp5O_Hh-dfXwexTWKt9RqMx3dP9m6_ZSvU4tOczryTIqHcDb3coU5hGKejHWmW_nZq3230KLUySpzlJtZLqfL5jEQbiNU5B-2I6x5EcI8OobvlMeyWi0IC5tWOErULKo1gvBkALJFQiG; BIGipServerpool_passport=233046538.50215.0000; route=6f50b51faa11b987e576cdb301e545c4; _jc_save_fromStation=%u957F%u6C99%2CCSQ; _jc_save_toStation=%u6210%u90FD%2CCDW; _jc_save_fromDate=2021-02-23; _jc_save_toDate=2021-02-22; _jc_save_wfdc_flag=dc'
    }

    response = requests.get('https://kyfw.12306.cn/otn/leftTicket/queryZ?leftTicketDTO.train_date=2021-02-23&leftTicketDTO.from_station=CSQ&leftTicketDTO.to_station=CDW&purpose_codes=ADULT', headers=headers)

    print(response.content.decode('utf-8'))

query()

session 通过服务器记录信息确定用户的身份
	指的是一个保持会话的操作

session.py

# @ Time : 2021/2/22 15:21
# @ Author : Ellen

import requests

req = requests.session()
def login():
    # 获取图片
    pic_response = req.get('https://kyfw.12306.cn/passport/captcha/captcha-image?login_site=E&module=login&rand=sjrand')
    codeImage = pic_response.content
    fn = open('code2.png', 'wb')
    fn.write(codeImage)
    fn.close()

    headers = {
    
    
        'User-Agent': 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/86.0.4240.75 Safari/537.36'
    }
    codeStr = input('请输入验证码坐标:')

    data = {
    
    
       'answer': codeStr,
       'rand': 'sjrand',
        'login_site': 'E'
    }

    response = req.post('https://kyfw.12306.cn/passport/captcha/captcha-check', data=data, headers=headers)

    print(response.text)

login()

text.py

# @ Time : 2021/2/22 15:21
# @ Author : Ellen

import base64

img_url = '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'

img_data = base64.b64decode(img_url)
fn = open('code.png', 'wb')
fn.write(img_data)
fn.close()

'''
https://kyfw.12306.cn/passport/captcha/captcha-image64?login_site=E&module=login&rand=sjrand&1613984250091&callback=jQuery1910931937780684972_1613984238850&_=1613984238851

https://kyfw.12306.cn/passport/captcha/captcha-image64?login_site=E&module=login&rand=sjrand&1613984433978&callback=jQuery191014746224530283292_1613984412513&_=1613984412515

找到两次相同的url 再删除64,就可以获取到图片--->指向12306验证码图片
https://kyfw.12306.cn/passport/captcha/captcha-image64?login_site=E&module=login&rand=sjrand

'''

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