如下所示:
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
|
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) |
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