Python爬虫入门必学知识:Requests的三种参数请求方式
URL参数请求:
import requests
'''
URL Parameters 请求方式: URL参数
例如: 以get 方式请求http://httpbin.org/get?first_name=hello&last_name=word
'''
# params={"first_name":"hello","last_name":"word"}
# responds=requests.get("http://httpbin.org/get",params=params)
# print(responds.text)
# print(responds.url)
表单参数请求:
表单参数提交,注意只更新的是表单数据
Content-Type: application/x-www-form-urlencoded
例如: 以post 方式请求http://httpbin.org/post, 增加的资源为params={"first_name":"hello","last_name":"word"}
'''
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'''
params={"first_name":"hello","last_name":"word"}
headers={"Content-Tpye":"application/x-www-form-urlencoded"}
responds=requests.post("http://httpbin.org/post",data=params,headers=headers)
print(responds.text)
print(responds.url)
print(responds.request)
Json 参数数据请求
Json数据提交,更新的是数据data
Content-Type: application/json
例如: 以post 方式请求http://httpbin.org/post, 增加的资源为params={"first_name":"hello","last_name":"word"}
params={"first_name":"hello","last_name":"word"}
headers={"Content-Tpye":"application/json"}
responds=requests.post("http://httpbin.org/post",json=params,headers=headers)
print(responds.text)
print(responds.url)
print(responds.request)
额外话题–构建URL
def build_url(URL,endpoint):
return "/".join([URL,endpoint])
print(build_url("http://httpbin.org","post"))