python中requests的用法

requests库的安装 pip install requests

一/带payload参数的get请求

import requests
#带参数请求，系统自动将字典形式的参数转换成url中可识别的参数
payload={'key1':'value1','key2':'value2'}
r=requests.get("https://docs.python-requests.org/en/master/",params=payload)
print(r.url)

get不安全因为参数都显示在网址栏

二/带data参数的post请求

这种方式参数不会直接显示在url上

#利用data参数post添加参数
data_form={'key1':'value1','key2':'value2'}
r=requests.post("https://docs.python-requests.org/en/master/",data=data_form)
print(r.url)

 三/上传文件

files={'file':open('test.txt','rb')}

r=requests.post("https://docs.python-requests.org/en/master/",file=files)

-----------------

with open('test.txt') as f:

r=requests.post("https://docs.python-requests.org/en/master/",data=f)

四/获取发送cookies

#获取cookies
req=requests.get("https://www.baidu.com")
cks=req.cookies
print(cks)
for key in cks.keys():
    print(key)
    print(cks[key])

#发送cookies
cookies=dict(mycookie='test')
req1=requests.get("https://www.baidu.com",cookies=cookies)
print(req1.text)

五/超时配置timeout

#连接超时配置
req2=requests.get("http://127.0.0.1:5000",timeout=1)