翻阅了网上很多大神的知乎登录的文章，很多因为知乎修改了登录的方法都不能用了，经过多次实验采用了某大神在github上的方法。
session = requests.session()
# session.cookies = cookiejar.LWPCookieJar(filename='cookies.txt')
session.cookies = cookielib.LWPCookieJar(filename='cookies.txt')
headers = {
'User-Agent':'Mozilla/5.0 (Windows NT 6.1) AppleWebKit/537.36 '
'(KHTML, like Gecko) Chrome/59.0.3071.115 Safari/537.36'
}
try:
#从本地文件加载cookies
# ignore_discard的意思是即使cookies将被丢弃也将它保存下来，ignore_expires的意思是如果在该文件中cookies已经存在，则覆盖原文件写入
session.cookies.load(ignore_discard=True)
exceptExceptionase:
print('exception:', e)
print('还没有cookie信息')
defget_xsrf():
url ='https://www.zhihu.com'
response = session.get(url,headers=headers)
soup = BeautifulSoup(response.text,'lxml')
#
tag = soup.find('input',attrs={'name':'_xsrf'})
returntag['value']
defget_captcha():
t =str(int(time.time() *1000))
captcha_url ='https://www.zhihu.com/captcha.gif?r='+ t +"&type=login"
response = session.get(captcha_url,headers=headers)
captcha_name ='captcha.gif'
withopen(captcha_name,'wb')asf:
f.write(response.content)
im = Image.open(captcha_name)
im.show()
returnraw_input('请输入验证码: ')
defget_phone():
returnraw_input('请输入手机号: ')
defget_password():
returnraw_input('请输入密码: ')
deflogin(phone, password, _xsrf, captcha):
data = {
'_xsrf': _xsrf,
'password': password,
'phone_num': phone,
'captcha': captcha
}
login_url ='https://www.zhihu.com/login/phone_num'
response = session.post(login_url,data=data,headers=headers)
print('response.json() =', response.json())
#保存cookies到本地
session.cookies.save()
defisLogin():
#通过查看用户个人信息来判断是否已经登录
url ="https://www.zhihu.com/settings/profile"
#这里重定向一定要设置为false,否则就算没有登录会被重定向到登录的地址去,然后code就返回200了
response = session.get(url,headers=headers,allow_redirects=False)
code = response.status_code
ifcode ==200:
returnTrue
else:
returnFalse
if isLogin():
print('您已经登录')
else:
phone = get_email()
password = get_password()
_xsrf = get_xsrf()
print('_xsrf =', _xsrf)
captcha = get_captcha()
login(phone, password, _xsrf, captcha)