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 = 'https://kankandou.com/book/view/22353.html' 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 = 'https://kankandou.com/book/view/22353.html' wbdata = requests.get(url,cookies=cookie).text soup = BeautifulSoup(wbdata,'lxml') print(soup)
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