python request post body_python利用request发送post请求

1. post请求方式编码有3种：

application/x-www-form-urlencoded #最常见的post提交数据的方式，以form表单形式提交数据

application/json #以json格式提交数据

multipart/form-data #一般使用来上传文件(较少用)

2. post一贯的用法是：requests.post(url,data), 具体我们使用不同的编码方式来有所不同：

1)、传统表单post请求(x-www-form-urlencoded)

import requests,json

url = 'http://httpbin.org/post'

data = {'key1':'value1','key2':'value2'}

r =requests.post(url,data)

print(r.text)

2)Requests以json形式发送post请求，

import requests,json

url_json = 'http://httpbin.org/post'

data_json = json.dumps({'key1':'value1','key2':'value2'}) #dumps：将python对象解码为json数据

r_json = requests.post(url_json,data_json)

print(r_json.text)

#post的body是json类型，也可以用json参数传入；先导入json模块，用dumps方法转化成json格式；返回结果，传到data里

3)Requests以multipart形式发送post请求

import requests,json

url_mul = 'http://httpbin.org/post'

files = {'file':open('E://report.txt','rb')}

r = requests.post(url_mul,files=files)

print(r.text)

3.实例：post-json

header值获取可以用fidder或burpsuit抓包。

# coding:utf-8

import requests

url = "https://passport.cnblogs.com/user/signin"

headers = {

'Connection': 'keep-alive',

'Content-Length': '123',

'Cache-Control': 'max-age=0',

'Origin':'https://passport.csdn.net',

'Upgrade-Insecure-Requests':'1',

'Content-Type': 'application/x-www-form-urlencoded',

'User-Agent': 'Mozilla/5.0 (Windows NT 6.1; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/62.0.3202.94 Safari/537.36',

'Accept': 'text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,image/apng,*/*;q=0.8',

'Referer': 'https://passport.csdn.net/account/login?from=http://www.csdn.net',

'Accept-Encoding': 'gzip, deflate, br',

'Accept-Language': 'zh-CN,zh;q=0.9',

'Cookie': '省略',

}

payload = {'username':'**',

'password':'**',

'lt':'**',

'execution':'e1s1',

'_eventId':'submit',

}

r = requests.post(url, json=payload, headers=headers,verify=False)

print r.json()

由于是https请求，直接发送请求可能会报错误:SSLError: [SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed (_ssl.c:590)，可以加个参数：verify=False，表示忽略对 SSL 证书的验证。

参考：https://www.cnblogs.com/android-it/p/9558751.html

https://blog.csdn.net/qq_36260310/article/details/78730829