python实现自动登录后台管理系统

# coding=utf-8
import urllib.request
import urllib
import http.COOKIEjar
from database_functions import *
import re
 
 
# 正则表达式匹配规则
regx = re.compile(r'(.*)(href=\")(.*)(\"\starget=.*bms.*)')
 
 
# 定义一个方法用于生成请求头信息，处理COOKIE
def getopener(head):
 
  cj = http.COOKIEjar.COOKIEJar()
  pro = urllib.request.HTTPCOOKIEProcessor(cj)
  opener = urllib.request.build_opener(pro)
  header = []
  for key, value in head.items():
    elem = (key, value)
    header.append(elem)
  opener.addheaders = header
  return opener
 
 
def modify_appeal_status_pass(phone):
 
  index, status = get_appeal_by_phone(phone)
  # 封装头信息，伪装成浏览器
  header = {
    'Connection': 'Keep-Alive',
    'Accept-Language': 'zh-CN,zh;q=0.9',
    'Accept': 'application/json, text/Javascript,text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,image/apng,*/*;q=0.8',
    'User-Agent': 'Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/64.0.3282.140 Safari/537.36',
    'X-Requested-With': 'XMLHttpRequest',
    'Host': 'xxx.xxx.xxx',
  }
 
  # 登录地址
  login_url = 'http://xxx.xxx.xxx/xx-xxx/login.do'
 
  # request封装COOKIE和头信息
  opener = getopener(header)
  urllib.request.install_opener(opener)
 
  username = '***' # 你的用户名
  password = '***' # 你的密码
  postdict = {
    'username': username,
    'password': password
  }
 
  # 登录请求
  postdata = urllib.parse.urlencode(postdict).encode('utf-8')
  login_respOnse= urllib.request.Request(login_url, data=postdata, headers=header) #登录系统
  login_webpage = urllib.request.urlopen(login_response)
  # 返回的html页面
  login_data = login_webpage.read().decode()
 
  # 获取系统地址
  bms_url = regx.findall(login_data)[0][2]
  # 请求xxxx
  bms_respOnse= urllib.request.Request(bms_url, headers=header)
  bms_webpage = urllib.request.urlopen(bms_response)
  # 返回的系统后台页面
  bms_data = bms_webpage.read().decode()
 
  # 对xx状态进行修改
  update_url = "http://xxx.xxx.xxx/xxx/xxx/xxx/xxx/{index}".format(index=index)
  update_respOnse= urllib.request.Request(update_url, headers=header)
  update_webpage = urllib.request.urlopen(update_response)
  update_data = update_webpage.read().decode()
  print(update_data)