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import urllib.request
import sys
import http.cookiejar
import urllib.parse
from bs4 import BeautifulSoup
import codecs
import re
#登录页面
url = "http://www.abc.com/login.asp"
#登录Post数据
postdata = urllib.parse.urlencode({
"username" : "abc" ,
"password" : "abc"
}).encode( 'utf-8' )
#构造header
header = {
"Accept" : "text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8" ,
"Accept-Encoding" : "utf-8" ,
"Accept-Language" : "zh-cn,zh;q=0.8,en-us;q=0.5,en;q=0.3" ,
"Connection" : "keep-alive" ,
"Host" : "www.abc.com" ,
"Referer" : "http://www.abc.com/login.asp" ,
"User-Agent" : "Mozilla/5.0 (Windows NT 6.1; WOW64; rv:32.0) Gecko/20100101 Firefox/32.0"
}
req = urllib.request.Request(url,postdata,header)
#获得cookie
cj = http.cookiejar.CookieJar()
opener = urllib.request.build_opener(urllib.request.HTTPCookieProcessor(cj))
r = opener. open (req)
#继续访问登陆后的页面
get_url = 'http://www.abc.com/user/'
get_request = urllib.request.Request(get_url, headers = header)
get_response = opener. open (get_request)
#打印获得的页面信息
print (get_response.read().decode( "utf-8" ))
#用bs4可以获得你需要的标签内容
soup = BeautifulSoup(get_response.read(), "html.parser" )
jie = soup.find_all( 'span' )
#这里利用正则表达式过滤掉html语言
dr = re. compile (r '<[^>]+>' ,re.S)
#这里jie[2]表示取符合条件的第三个标签
dd = dr.sub('', str (jie[ 2 ]))
print (dd)
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以上这篇Python3 Post登录并且保存cookie登录其他页面的方法就是小编分享给大家的全部内容了,希望能给大家一个参考,也希望大家多多支持服务器之家。
原文链接:https://blog.csdn.net/u013630017/article/details/52434470