Python-requests獲取cookie的方法

一. 處理cookie

　　1. 處理cookie方法一：用 requests.utils.dict_from_cookiejar() 把返回的cookies轉換成字典

import requests

def login():
    url = 'http://www.xxx.com/login
    headers = {
        'Content-Type': "application/json"
    }
    payload = {
        "usercode": "[e-mail]",
        "password": "11111"
    }
    try:
        res = requests.post(url, headers=headers, json=payload)
        cookies = res.cookies

        cookie = requests.utils.dict_from_cookiejar(cookies)

        return cookie
    except Exception as err:
        print('獲取cookie失敗：\n{0}'.format(err))

　　2 處理cookie 方法二：遍歷cookies的鍵值，拼接成cookie格式

import requests

def login():
    login_url = 'http://www.baidu.com/login
    headers = {
        'Content-Type': "application/json"
    }
    payload = {
        "usercode": "[e-mail]",
        "password": "1111"
    }
    try:
        res = requests.post(url=login_url, headers=headers, json= payload)
        cookies = res.cookies.items()

        cookie = ''
        for name, value in cookies:
            cookie += '{0}={1};'.format(name, value)

        return cookie
    except Exception as err:
        print('獲取cookie失敗：\n{0}'.format(err))

二. 使用cookie

　　方法一：

import requests

def get_data():
    cookie = login()
    res = requests.get(url=get_data_url, cookies=cookie)
    print(res.text)

　　方法二：

import requests

def get_data():
    cookie = login()
    headers = {
        "cookie": cookie
    }
    res = requests.get(url=get_data_url, headers=headers)
    print(res.text)