aiohttp实现多任务异步协程

#环境安装：pip install aiohttp
#使用该模块中的ClientSession

import requests 
import asyncio
import time
import aiohttp

start = time.time()

urls = [
    'http://127.0.0.1:5000/bobo',
    'http://127.0.0.1:5000/jav',
    'http://127.0.0.1:5000/tom',
]

async def get_page(url):
    async with aiohttp.ClientSession() as session:
        #get()、post():
            #添加headers,params/data,proxy='http://ip:port'
        async with await session.get(url,headers=headers) as response:
        #text()返回字符串形式的响应数据
        #read()返回的是二进制的响应数据
        #json()返回的是json对象
        ###注意：在获取响应数据操作之前，一定要使用await进行手动挂起
        page_text = await response.text()
        print(page_text)

tasks = []

for url in urls:
    c = get_page(url)
    task = asyncio.ensure_future(c)
    tasks.append(task)
loop = asyncio.get_event_loop()
loop.run_until_complete(asyncio.wait(tasks))

end = time.time()

print('总耗时:',end-start)

flask服务程序

from flask import Flask
import time
app = Flask(__name__)
@app.route('/bobo')
def index_bobo():
    time.sleep(2)
    return 'Hello bobo'
@app.route('/jay')
def index_jay():
    time.sleep(2)
    return 'Hello jay'
@app.route('/tom')
def index_tom():
    time.sleep(2)
    return 'Hello tom'
if __name__ == '__main__':
    app.run(threaded=True)