一、装置
httpx是Python新一代的网络申请库
httpx与 requests 库的根本应用办法简直是截然不同的
基于Python3的功能齐全的http申请模块
既能发送同步申请，也能发送异步申请
反对HTTP/1.1和HTTP/2
反对间接向WSGI应用程序或者ASGI应用程序发送申请

pip install httpx

二、申请类型

import httpxhttpx.get('https://www.baidu.com')httpx.post('https://www.baidu.com')httpx.put('https://www.baidu.com')httpx.delete('https://www.baidu.com')httpx.head('https://www.baidu.com')httpx.options('https://www.baidu.com')

三、带参数申请

import httpxdata = {    'name': 'autofelix',    'age': 25}response = httpx.get('https://www.baidu.com', params=data)print(response.url)print(response.text)

四、自定义 headers

import httpxheaders = {    'User-Agent': 'Mozilla/5.0 (Windows NT 6.1; WOW64; Trident/7.0; rv:11.0) like Gecko'}response =httpx.get('https://www.baidu.com', headers=headers)print(response.text)

五、申请的属性

import httpxresponse = httpx.get('https://www.baidu.com')# 响应状态码response.status_code# 响应头response.headers# 响应cookieresponse.cookies# 申请urlresponse.url# 历史记录response.history

六、应用client发送申请

import httpxwith httpx.Client() as client:    response = client.get('https://www.baidu.com')    print(response.text)

七、HTTP代理

import httpxproxies= {    'http': 'http://127.0.0.1:9999',    'https': 'http://127.0.0.1:8888'}with httpx.Client(proxies=proxies) as client:    response = client.get('https://www.baidu.com')    print(response)

八、超时解决

import httpx# 一般申请超时解决httpx.get('https://www.baidu.com', timeout=10.0)# 一般申请敞开超时解决httpx.get('https://www.baidu.com', timeout=None)# client实例超时解决with httpx.Client() as client:    client.get('https://www.baidu.com', timeout=None)    # client实例敞开超时解决with httpx.Client() as client:    client.get('https://www.baidu.com', timeout=10.0)

九、SSL验证

import httpx# 自带ca证书response = httpx.get('https://www.baidu.com', verify="path/cert/client.pem")# 齐全禁用SSL验证response = httpx.get('https://www.baidu.com', verify=False)

十、异步操作
应用async/await语句来进行异步操作
应用异步client比应用多线程发送申请更加高效，更能体现显著的性能劣势

import asyncioimport httpxasync def main():    async with httpx.AsyncClient() as client:         response = await client.get('https://www.baidu.com')        print(response)if __name__ == '__main__':    asyncio.run(main())

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