(二) 添加cookie/session 会话保持/添加超时

一. 添加cookie

# ~ headers添加    ----headers = {'cookie': 'token=xxx;uid=1'}

res = requests.post(url='http://123.56.99.53:9001/api/uploadFile/',
              headers={"Cookie": "uid=1;token=44c972f05d76fdd93c31f9c2b65bb098f308cdfc"
                      # ,"Content-Type": "multipart/form-data"},
              files={"myfile1": open('D:\全力以富\文艺清新单页10.docx', 'rb')}
print(res.text)

# ~cookies 字典添加 ---cookies ={'cookies_are':'working'}/cookies = dict(cookies_are='working')

res = requests.post(url='http://123.56.99.53:9001/api/uploadFile/',
              cookies={"uid": "1", "token": "44c972f05d76fdd93c31f9c2b65bb098f308cdfc"},
              files={"myfile": open('D:\全力以富\文艺清新单页10.docx', 'rb')
                     })
print(res.text)

res = requests.post(url='http://123.56.99.53:9001/api/get_salesMonthly/',
                    headers={"Content-Type": "application/json"},
                    json={"city": "110000", "month": "3"},
                    cookies={"uid": "1", "token": "44c972f05d76fdd93c31f9c2b65bb098f308cdfc"})
print(res.text)

习题：cookies获取：先登录——再获取——给查询接口用 ----requests.get(url, cookies=cookies)

res1 = requests.post(url='http://123.56.99.53:9001/api/login/',
                    headers={"Content-Type": "application/x-www-form-urlencoded"},
                    data={"username": "admin", "password": "liulaoshi123"},
                    allow_redirects=False)
#requests.utils.dict_from_cookiejar(res1.cookies)
# 从 cookie 对象中转字典可用来查看cookies
res2 = requests.post(url='http://123.56.99.53:9001/api/get_salesMonthly/',
                    headers={"Content-Type": "application/json"},
                    json={"city": "110000", "month": "3"},
                    cookies=res1.cookies)
print(res2.text)

注： allow_redirects=False ----不允许自动重定向

二. 会话保持

1.创建一个session,保持登录 

session = requests.session()
session.post(url='http://123.56.99.53:9001/api/login/',
                    headers={"Content-Type": "application/x-www-form-urlencoded"},
                    data={"username": "admin", "password": "liulaoshi123"})
res2 = session.post(url='http://123.56.99.53:9001/api/get_salesMonthly/',
                    headers={"Content-Type": "application/json"},
                    json={"city": "110000", "month": "3"})
print(res2.text)

注：session id不能放在url中暴露，session id需设置合理的退出和过期机制

三. 设置超时 timeout  ----requests.get(url=' ', timeout=1)

res = requests.get(url='http://www.google.com/',timeout=2)
print(res.staus_code)

注：如果超过几秒没有响应，则视为请求发送失败, 则抛出requests.exceptions.Timeout 
 timeout 仅对连接过程有效，与响应体的下载无关