python登录aspx网站

1.安装模块
2.准备aspx登录页面
3.示例代码
 1 #coding:utf-8
 2 import re
 3 from bs4 import BeautifulSoup
 4 import gzip
 5 import urllib.request
 6 import urllib.parse
 7 import http.cookiejar
 8 import ssl
 9 import time
10 
11 loginurl='http://192.168.0.108:8005/login.aspx'
12 vercodeurl='http://192.168.0.108:8005/vercode.aspx?r=%d'
13 
14 heads={
15             "Accept":"text/html, application/xhtml+xml, */*",
16             "Accept-Language":"zh-CN",
17             "User-Agent":"Mozilla/5.0 (Windows NT 6.3; WOW64; rv:43.0) Gecko/20100101 Firefox/43.0",
18             "Accept-Encoding": "gzip, deflate",
19             "Host": "http://192.168.0.108:8005",
20             "DNT": "1",
21             "Connection": "Keep-Alive"
22             }
23 
24 def get_opener(heads):
25     cj=http.cookiejar.CookieJar()
26     pro=urllib.request.HTTPCookieProcessor(cj)
27     opener=urllib.request.build_opener(pro)
28     header=[]
29     for key,value in heads.items():
30         header.append((key,value))
31     opener.addheaders=header
32     return opener
33 
34 def ungzip(data):
35     try:
36         data=gzip.decompress(data)
37         #with open("222.txt",'wb') as file:
38              #file.write(data)
39     except:
40         pass
41     return data    
42 
43 if __name__=="__main__":
44     ssl._create_default_https_context = ssl._create_unverified_context 
45     opener=get_opener(heads)
46     op=opener.open(loginurl)
47     data1=op.read()
48     data1=ungzip(data1).decode('utf-8')
49     soup=BeautifulSoup(data1,"html.parser")
50     
51     VIEWSTATE=soup.find("input",{'type':'hidden','name':'__VIEWSTATE'}).get("value")
52     VIEWSTATEGENERATOR=soup.find("input",{'type':'hidden','name':'__VIEWSTATEGENERATOR'}).get("value")
53     EVENTVALIDATION=soup.find("input",{'type':'hidden','name':'__EVENTVALIDATION'}).get("value")
54     
55     '''正则获取隐藏值
56     regular = {
57         'viewstate': re.compile(r'id="__VIEWSTATE" value="(.+)" />'),
58         'eventvalidation': re.compile(r'id="__EVENTVALIDATION" value="(.+)" />')
59     }
60     print(regular['viewstate'].findall(data1)[0])
61     '''
62 
63     vercodedata=opener.open(vercodeurl% (time.time() * 1000)).read()
64     with open("auto100.jpeg",'wb') as file:
65         file.write(vercodedata)
66     yzm=input("请输入验证码:")
67     postdata={
68         "__VIEWSTATE":VIEWSTATE,
69         "__VIEWSTATEGENERATOR":VIEWSTATEGENERATOR,
70         "__EVENTVALIDATION":EVENTVALIDATION,
71         "username":"sulin",
72         "userpwd":"123",
73         "btnlogin":"登录",
74         "vercode":yzm
75         }
76     postdata=urllib.parse.urlencode(postdata).encode('utf-8')
77 
78     op2=opener.open(loginurl,postdata)
79     login_data=op2.read()
80     data=ungzip(login_data).decode("utf-8")
81     print(data)
82
4.测试结果