关于用python写的登陆程序，怎么获取cookie值并返回出来

Posted 2023-05-04

参考技术A 两种方式：
一、
接口，可以pip install requests模块，安装一个requests，对接口支持简单好用
例子,写一个getcookie()方法
import requests
def getcookie():
data='username':username,'password':pwd
session=requests.session()
loginurl="http://xxx.com/login"
#具体要接口登录后才可以获得cookies
result=session.post(loginurl,data=data)

cookies=requests.utils.dict_from_cookiejar(session.cookies)
return cookies

二、
UI自动化登录：可以easy_install -U selenium，安装selenium模块，支持UI自动化，模拟前端，用户名、密码登录后，这种方式也可以获得cookie

一个例子，登录csdn，并且获取cookie，用户名和密码我隐去了，可以参考。

from selenium import webdriver
from selenium.webdriver.common.keys import Keys
import selenium
import os,time
import sys
sys.path.append("..")
import web
import datetime

#默认得安装一个火狐浏览器
class webconn:
def __init__(self,drivertype):
self.drivertype=drivertype

def web_conn(self):
PASS=0
FAIL=0
get_cookie=
t=datetime.datetime.now()
starttime=datetime.datetime.now()

driver = webdriver.Firefox()
try:

driver.get('https://passport.csdn.net/account/login')
time.sleep(2)
assert u'帐号登录' in driver.title

driver.find_element_by_id("username").send_keys(u"yoursername")
print "输入用户名"

driver.find_element_by_id("password").send_keys(u"yourpassword")
print "输入密码"

driver.find_element_by_class_name("logging").click()
time.sleep(2)

assert u'全球最大中文' in driver.title

driver.add_cookie('name':'key-aaaaaa','value':'value-bbbb')
for cookie in driver.get_cookies():
print "%s -> %s" %(cookie['name'],cookie['value'])
get_cookie[cookie['name'].encode("UTF-8")]=cookie['value'].encode("UTF-8")

print "cookie cookie cookie cookie cookie"

print get_cookie

PASS=PASS+1
except Exception,e:
print(str(Exception)+":"+str(e))
FAIL=FAIL+1
finally:
driver.close()
driver.quit()

endtime=datetime.datetime.now()
totaltime=endtime-starttime
usetime=str(endtime-starttime)
hour=usetime.split(':').pop(0)
minute=usetime.split(':').pop(1)
second=usetime.split(':').pop(2)
totaltime=float(hour)*60*60+float(minute)*60+float(second)
totaltime=str(totaltime)+"s"
return get_cookie

Python爬虫 —— 知乎之selenium模拟登陆+requests.Session()获取cookies

 

 

代码如下：

 1 # coding:utf-8
 2 from selenium import webdriver
 3 import requests
 4 import sys
 5 import time
 6 from lxml import etree
 7 # reload(sys)
 8 # sys.setdefaultencoding(‘utf-8‘)
 9 
10 class Zhihu:
11     def __init__(self,homeurl):
12         self.homeurl = homeurl
13 
14     def GetCookies(self):
15         browser = webdriver.Chrome()
16         browser.get("https://www.zhihu.com/signin")
17         browser.find_element_by_css_selector(".SignFlow-accountInput.Input-wrapper input").send_keys("13060882373")
18         browser.find_element_by_css_selector(".SignFlow-password input").send_keys("XXXXXX")
19         browser.find_element_by_css_selector(".Button.SignFlow-submitButton").click()
20         time.sleep(3)
21         # js = "window.scrollTo(0, document.body.scrollHeight);"
22         # browser.execute_script(js)
23         # time.sleep(3)
24         cookies = browser.get_cookies()
25         browser.quit()
26         return cookies
27 
28     def Crawl(self):
29         s = requests.Session()
30         s.headers.clear()
31         for cookie in self.GetCookies():
32             s.cookies.set(cookie[‘name‘], cookie[‘value‘])
33         html = s.get(self.homeurl).text
34         html_tree = etree.HTML(html)
35         items = html_tree.xpath(‘//*[@id="root"]/div/main/div/div/div[1]/div[2]/div//div[@class="ContentItem AnswerItem"]/@data-zop‘)
36         for item in items:
37             # print item
38             content = eval(item)
39             authorName = content[‘authorName‘]
40             title = content[‘title‘]
41             print authorName + "回答了：" + title
42 
43 
44 zhihu = Zhihu(‘https://www.zhihu.com/‘)
45 zhihu.Crawl()