本地搭建的Flask测试环境:协程代码如下:import asyncio
import aiohttp
import time
start = time.time()
async def get(url):
session = aiohttp.ClientSession()
response = await session.get(url)
result = await response.text()
session.close()
return result
async def request():
url = 'http://127.0.0.1:5000'
print('Waiting for', url)
result = await get(url)
print('Get response from', url, 'Result:', result)
tasks = [asyncio.ensure_future(request()) for _ in range(5)]
loop = asyncio.get_event_loop()
loop.run_until_complete(asyncio.wait(tasks))
end = time.time()
print('Cost time:', end - start)运行结果如下:Waiting for http://127.0.0.1:5000Waiting for http://127.0.0.1:5000Waiting for http://127.0.0.1:5000Waiting for http://127.0.0.1:5000Waiting for http://127.0.0.1:5000Get response from http://127.0.0.1:5000 Result: Hello!Get response from http://127.0.0.1:5000 Result: Hello!Get response from http://127.0.0.1:5000 Result: Hello!Get response from http://127.0.0.1:5000 Result: Hello!C:/Users/gyp/PycharmProjects/untitled/4545/xiechengp.py:24: RuntimeWarning: coroutine 'ClientSession.close' was never awaited session.close()Unclosed client sessionclient_session: <aiohttp.client.ClientSession object at 0x0000000003B102E8>Unclosed client sessionclient_session: <aiohttp.client.ClientSession object at 0x0000000003B10940>Unclosed client sessionclient_session: <aiohttp.client.ClientSession object at 0x00000000030ADC50>Unclosed client sessionclient_session: <aiohttp.client.ClientSession object at 0x00000000030ADC18>Get response from http://127.0.0.1:5000 Result: Hello!Cost time: 3.013000011444092Unclosed client sessionclient_session: <aiohttp.client.ClientSession object at 0x0000000003B10DD8>
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