Python模拟登录和登录跳转的参考示例

# coding:utf-8
import urllib
import urllib2
import cookielib
from bs4 import BeautifulSoup
# 设置登录url
login_url = "******************"
# 创建登录类
class Login(object):
 #初始化
 def __init__(self):
   self.username = ''
   self.password = ''
   # 验证码
   self.rode = ''
   #设置cookie
   self.cj = cookirlib,LWPCookieJar()
   self.opener = urllib2.build_opener(urllib2.HTTPCookieProcessor(self.cj))
   urllib2.install_opener(self.opener)

def setLoginInfo(self, username, passwoed ,rode):
   """设置登录用户信息"""
   self.username = username
   self.password = password
   self.rode = rode

def login(self):
   """"模拟登录"""
   login_data = {'username': self.username, 'password': self.password, 'rode': self.rode}
   headers = {'User-Agent': 'Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/55.0.2859.0 Safari/537.36'}
   req = urllib2.Request(login_url, data=urllib.urlencode(login_data), headers=headers)
   response = urllibs.urlopen(req)
   # 加cookie, 自动保存seissionid,做后续跳转
   self.operate = self.opener.open(req)
   # 通过BeautifulSoup获取网页内容
   soup = BeautifulSoup(response, 'lxml')
   # 获取网页的content
   data = soup.select('#content')
   if data:
     print u'模拟登录成功!', data
   print u'模拟登录失败!'

def skip(self, skip_url):
   """
   模拟登录成功后,跳转网页
   ----------------------------
   传递跳转网页的url
  """
   headers = {'User-Agent': 'Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/55.0.2859.0 Safari/537.36'}
   req = urllib2.Request(skip_url, headers=headers)
   response = urllib2.urlopen(req)
   soup = BeautifulSoup(response, 'lxml')
   # 获取跳转后网页的title
   print soup.title.string

if __name__ == "__main__":
 userlogin = Login()
 username = '***********'
 password = '***********'
 rode = '***********'
 # 执行模拟登录方法
 userlogin.login()
 # 执行模拟登录成功后网页跳转方法
 user_login.skip(skip_url = '***************')

来源：https://cloud.tencent.com/developer/article/1568777