Python3爬虫如何带上cookie-创新互联

这期内容当中小编将会给大家带来有关Python3 爬虫如何带上 cookie，文章内容丰富且以专业的角度为大家分析和叙述，阅读完这篇文章希望大家可以有所收获。

Cookie的英文原意是“点心”，它是在客户端访问Web服务器时，服务器在客户端硬盘上存放的信息，好像是服务器发送给客户的“点心”。服务器可以根据Cookie来跟踪客户状态，这对于需要区别客户的场合（如电子商务）特别有用。

当客户端首次请求访问服务器时，服务器先在客户端存放包含该客户的相关信息的Cookie，以后客户端每次请求访问服务器时，都会在HTTP请求数据中包含Cookie，服务器解析HTTP请求中的Cookie，就能由此获得关于客户的相关信息。

下面我们就来看一下python3爬虫带上cookie的方法：

1、直接将Cookie写在header头部

# coding:utf-8
import requests
from bs4 import BeautifulSoup
cookie = '''cisession=19dfd70a27ec0eecf1fe3fc2e48b7f91c7c83c60;CNZZDATA1000201968=181584
6425-1478580135-https%253A%252F%252Fwww.baidu.com%252F%7C1483922031;Hm_lvt_f805f7762a9a2
37a0deac37015e9f6d9=1482722012,1483926313;Hm_lpvt_f805f7762a9a237a0deac37015e9f6d9=14839
26368'''
header = {
'User-Agent': 'Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Geck
o) Chrome/53.0.2785.143 Safari/537.36',
'Connection': 'keep-alive',
'accept': 'text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8',
'Cookie': cookie}
url = '/tupian/20230522/191947.htm&
wbdata = requests.get(url,headers=header).text
soup = BeautifulSoup(wbdata,'lxml')
print(soup)

2、使用requests插入Cookie

# coding:utf-8
import requests
from bs4 import BeautifulSoup
cookie = {
"cisession":"19dfd70a27ec0eecf1fe3fc2e48b7f91c7c83c60",
"CNZZDATA100020196":"1815846425-1478580135-https%253A%252F%252Fwww.baidu.com%252F%7C1483
922031",
"Hm_lvt_f805f7762a9a237a0deac37015e9f6d9":"1482722012,1483926313",
"Hm_lpvt_f805f7762a9a237a0deac37015e9f6d9":"1483926368"
}
url = '/tupian/20230522/191947.htm&
wbdata = requests.get(url,cookies=cookie).text
soup = BeautifulSoup(wbdata,'lxml')
print(soup)

实例扩展：

使用cookie登录哈工大ACM站点

获取站点登录地址

/tupian/20230522/ppre class="brush:py;">#!/usr/bin/env python # -*- coding: utf-8 -*- """ __author__ = 'pi' __email__ = 'pipisorry@126.com' """ import urllib.request, urllib.parse, urllib.error import http.cookiejar LOGIN_URL = '/tupian/20230522/login& values = {'user': '******', 'password': '******'} # , 'submit' : 'Login' postdata = urllib.parse.urlencode(values).encode() user_agent = r'Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/44.0.2403.157 Safari/537.36' headers = {'User-Agent': user_agent, 'Connection': 'keep-alive'} cookie_filename = 'cookie.txt' cookie = http.cookiejar.MozillaCookieJar(cookie_filename) handler = urllib.request.HTTPCookieProcessor(cookie) opener = urllib.request.build_opener(handler) request = urllib.request.Request(LOGIN_URL, postdata, headers) try: response = opener.open(request) page = response.read().decode() # print(page) except urllib.error.URLError as e: print(e.code, ':', e.reason) cookie.save(ignore_discard=True, ignore_expires=True) # 保存cookie到cookie.txt中 print(cookie) for item in cookie: print('Name = ' + item.name) print('Value = ' + item.value) get_url = '/tupian/20230522/problem=1& # 利用cookie请求訪问还有一个网址 get_request = urllib.request.Request(get_url, headers=headers) get_response = opener.open(get_request) print(get_response.read().decode()) # print('You have not solved this problem' in get_response.read().decode())

上述就是小编为大家分享的Python3 爬虫如何带上 cookie了，如果刚好有类似的疑惑，不妨参照上述分析进行理解。如果想知道更多相关知识，欢迎关注创新互联-成都网站建设公司行业资讯频道。