今天为大家介绍一下Python爬虫库requests的发送请求、传递URL参数、定制headers的基础使用方法
首先我们先引入requests模块
import requests
一、发送请求
r = requests.get('https://api.github.com/events') # GET请求 r = requests.post('http://httpbin.org/post', data = {'key':'value'}) # POST请求 r = requests.put('http://httpbin.org/put', data = {'key':'value'}) # PUT请求 r = requests.delete('http://httpbin.org/delete') # DELETE请求 r = requests.head('http://httpbin.org/get') # HEAD请求 r = requests.options('http://httpbin.org/get') # OPTIONS请求 type(r)requests.models.Response
二、传递URL参数
URL传递参数的形式为：httpbin.org/get?key=val。但是手动的构造很麻烦，这是可以使用params参数来方便的构造带参数URL。
payload = {'key1': 'value1', 'key2': 'value2'} r = requests.get("http://httpbin.org/get", params=payload) print(r.url)http://httpbin.org/get?key1=value1&key2=value2
同一个key可以有多个value
payload = {'key1': 'value1', 'key2': ['value2', 'value3']} r = requests.get('http://httpbin.org/get', params=payload) print(r.url)http://httpbin.org/get?key1=value1&key2=value2&key2=value3
三、定制headers
只需要将一个dict传递给headers参数便可以定制headers
url = 'https://api.github.com/some/endpoint' headers = {'user-agent': 'my-app/0.0.1'} r = requests.get(url, headers=headers)更多关于Python爬虫库requests的使用方法请点击下面的相关链接
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