Question

此代码有什么问题？我尝试使用Python 3.4登录ISP客户端页面并返回相同的html页面。

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

values = {'unam' : name, 'pass' : passw}这里假设表单元素名称为unam和pass，因站点而异。例如，如果您尝试登录Facebook，则字段名称为email和pass。然后必须将该行修改为 values = {'email' : name, 'pass' : passw}

检查您需要登录的网页中的元素，以确定名称并使用它们。

Answer 2

        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()

使用python登录网站

2 个答案: