使用python登錄網站

Question

這段代碼有什麼問題？我嘗試使用Python 3.4登錄到ISP客戶端頁面，並返回相同的HTML頁面。

import urllib.request 
import urllib.parse 
from http import cookiejar 
from bs4 import BeautifulSoup 

url = "https://www.exampe.com/login.php" 
name = "username" 
passw = "password" 

def Login(): 
    cj = cookiejar.CookieJar() 
    user_agent = 'Mozilla/4.0 (compatible; MSIE 5.5; Windows NT)' 
    headers = { 'User-Agent' : user_agent } 
    redirect =urllib.request.HTTPRedirectHandler() 
    opener = urllib.request.build_opener(urllib.request.HTTPCookieProcessor(cj)) 
    values = {'unam' : name, 'pass' : passw} 
    data = urllib.parse.urlencode(values) 
    binary_data = data.encode('utf-8') 
    login = urllib.request.Request(url,binary_data,headers) 
    login_response = opener.open(login) 
    soup = BeautifulSoup(login_response.read(),'lxml') 
    print(soup) 

Login() 

Answer 1

 import urllib.request 
     import urllib.parse 
     from http import cookiejar 
     from bs4 import BeautifulSoup 
     login = 'user' 
     password = 'password'' 
     cook = 'mfp.cookies' 
     url = "https://example/login.php" 
     cj = cookiejar.MozillaCookieJar(cook) 
     opener=urllib.request.build_opener(urllib.request.HTTPRedirectHandler(), 
     urllib.request.HTTPSHandler(),urllib.request.HTTPSHandler(debuglevel=0), 
     urllib.request.HTTPCookieProcessor(cj)) 
     opener.addheaders = [('User-agent', 'Mozilla/5.0 (X11; Linux i686)  AppleWebKit/537.36 (KHTML, like Gecko) Chrome/37.0.2062.120 Safari/537.36'Wink] 
     values = {'uname' : login,'upass' : password,'login' : 'Login'} 
     data = urllib.parse.urlencode(values) 
     binary_data = data.encode('UTF-8') 
     s = opener.open(url,binary_data) 
     main = opener.open('http://example.com/page/1/index.php') 
     soup = BeautifulSoup(main.read(),'lxml') 

     cj.save() 

Answer 2

values = {'unam' : name, 'pass' : passw}這裏假定表單元素名稱是unam和pass從網站到不同網站。例如，如果您嘗試登錄Facebook，則字段名稱爲email和pass。然後，該行必須修改爲 values = {'email' : name, 'pass' : passw}

檢查您需要登錄的網頁中的元素以確定名稱並按照這些名稱使用它們。