Python3网页post登陆

Posted 2020-09-20

[引入库]

import urllib
import urllib.parse
import urllib.request
import http.cookiejar

[请求头，通过FireFox查得]

headers = {     ‘Accept‘: ‘text/html, application/xhtml+xml, image/jxr, */*‘,
                ‘Referer‘: ‘http://jxpt.cuit.edu.cn/eol/homepage/common/index.jsp‘,
                ‘Accept-Language‘: ‘zh-CN‘,
                ‘User-Agent‘: ‘Mozilla/5.0 (Windows NT 10.0; WOW64; Trident/7.0; rv:11.0) like Gecko‘,
                ‘Content-Type‘: ‘application/x-www-form-urlencoded‘,
                ‘Accept-Encoding‘: ‘gzip, deflate‘,
                ‘Content-Length‘: 57,
                ‘Host‘: ‘jxpt.cuit.edu.cn‘,
                ‘Connection‘: ‘Keep-Alive‘,
                ‘Pragma‘: ‘no-cache‘,
                }

[需要post的数据]

postData = {  ‘IPT_LOGINUSERNAME‘: ‘账号‘,
              ‘IPT_LOGINPASSWORD‘: ‘密码‘,
        　　　　}                    

[获取cookie]

#输入账号密码的地址
loginURL = ‘http://jxpt.cuit.edu.cn/eol/homepage/common/index.jsp‘
#自动记住cookie
cj = http.cookiejar.CookieJar()
opener = urllib.request.build_opener(urllib.request.HTTPCookieProcessor(cj))
urllib.request.install_opener(opener)# 安装opener到全局
resp = urllib.request.urlopen(loginURL)

[post登陆]

#post数据地址
postURL = ‘http://jxpt.cuit.edu.cn/eol/homepage/common/login.jsp‘
#数据编码
postData = urllib.parse.urlencode(postData).encode(‘utf-8‘)
#构造请求
request = urllib.request.Request(postURL, postData, headers)
#发送请求
response = urllib.request.urlopen(request)

[打印返回的信息]

#respInfo = response.info()
#接收返回的信息
html = response.read().decode(‘gb2312‘)
print(html)
print("over!")
    

[完整代码]

 1 import urllib
 2 import urllib.parse
 3 import urllib.request
 4 import http.cookiejar
 5 
 6 
 7 def login():
 8     
 9     headers = {    ‘Accept‘: ‘text/html, application/xhtml+xml, image/jxr, */*‘,
10                 ‘Referer‘: ‘http://jxpt.cuit.edu.cn/eol/homepage/common/index.jsp‘,
11                 ‘Accept-Language‘: ‘zh-CN‘,
12                 ‘User-Agent‘: ‘Mozilla/5.0 (Windows NT 10.0; WOW64; Trident/7.0; rv:11.0) like Gecko‘,
13                 ‘Content-Type‘: ‘application/x-www-form-urlencoded‘,
14                 ‘Accept-Encoding‘: ‘gzip, deflate‘,
15                 ‘Content-Length‘: 57,
16                 ‘Host‘: ‘jxpt.cuit.edu.cn‘,
17                 ‘Connection‘: ‘Keep-Alive‘,
18                 ‘Pragma‘: ‘no-cache‘,
19                 }
20 
21     postData = {‘IPT_LOGINUSERNAME‘: ‘账号‘,
22                 ‘IPT_LOGINPASSWORD‘: ‘密码‘,
23                 }
24 
25     #输入账号密码的地址
26     loginURL = ‘http://jxpt.cuit.edu.cn/eol/homepage/common/index.jsp‘
27     #自动记住cookie
28     cj = http.cookiejar.CookieJar()
29     opener = urllib.request.build_opener(urllib.request.HTTPCookieProcessor(cj))
30     urllib.request.install_opener(opener)# 安装opener到全局
31     resp = urllib.request.urlopen(loginURL)
32 
33 
34     #post数据地址
35     postURL = ‘http://jxpt.cuit.edu.cn/eol/homepage/common/login.jsp‘
36     #数据编码
37     postData = urllib.parse.urlencode(postData).encode(‘utf-8‘)
38     #构造请求
39     request = urllib.request.Request(postURL, postData, headers)
40     #发送请求
41     response = urllib.request.urlopen(request)
42 
43 
44     respInfo = response.info()
45     #接收返回的信息
46     html = response.read().decode(‘gb2312‘)
47     print(html)
48     print("over!")
49 
50 if __name__ == ‘__main__‘:
51     login()