python－－requests模块详解

GET请求

首先构造一个最简单的get请求，请求的链接为http://httpbin.org/get

 import requests
  2 r = requests.get("http://httpbin.org/get")
  3 print(r.text)
#运行结果
{
  "args": {},
  "headers": {
    "Accept": "*/*",
    "Accept-Encoding": "gzip, deflate",
    "Host": "httpbin.org",
    "User-Agent": "python-requests/2.18.4",
    "X-Amzn-Trace-Id": "Root=1-5f704dcf-78e431abe1d838c6c44e50ac"
  },
  "origin": "58.17.121.223",
  "url": "http://httpbin.org/get"
}

可以发现我们成功的发起了get请求,并且返回结果中包括了请求头，URL,IP等信息

如果发起请求的URL地址需要参数,利用params这个参数

 import requests
  2 date = {
  3         "name":"germey",
  4         "age":22
  5         }
  6 r = requests.get("http://httpbin.org/get",params = date)
  7
  8 print(r.text)
#运行结果
{
  "args": {
    "age": "22",
    "name": "germey"
  },
  "headers": {
    "Accept": "*/*",
    "Accept-Encoding": "gzip, deflate",
    "Host": "httpbin.org",
    "User-Agent": "python-requests/2.18.4",
    "X-Amzn-Trace-Id": "Root=1-5f704f27-854822ce60e1c5f94da41517"
  },
  "origin": "58.17.121.223",
  "url": "http://httpbin.org/get?name=germey&age=22"
}

通过运行结果我们可以判断，请求的链接自动被构造成了：http://httpbin.org/get?age = 22&name= germey

添加headers

有些网站如果不传递headers则会被禁止访问，所以一般在发起请求之前我们都要进行ＵＡ伪装

POST请求

 import requests
  2 data = {"name":"germey","age":22}
  3 r = requests.post("http://httpbin.org/post",data = data)
  4 print(r.text)
#运行结果
{
  "args": {},
  "data": "",
  "files": {},
  "form": {
    "age": "22",
    "name": "germey"
  },
  "headers": {
    "Accept": "*/*",
    "Accept-Encoding": "gzip, deflate",
    "Content-Length": "18",
    "Content-Type": "application/x-www-form-urlencoded",
    "Host": "httpbin.org",
    "User-Agent": "python-requests/2.18.4",
    "X-Amzn-Trace-Id": "Root=1-5f70517c-43382ec6284d9ce2a3cd28f1"
  },
  "json": null,
  "origin": "58.17.121.223",
  "url": "http://httpbin.org/post"
}

其中form就是需要提交的数据