任务已被破坏,但在尝试使用https运行aiohttp服务器时它处于挂起状态

尝试找出如何使https与 aiohttp 服务器,但是当我尝试在使用时向路由发出请求时,我会一直收到下面的错误 ssl_context .

任务已被破坏,但仍处于挂起状态!

如果我移除 ssl_上下文 从 web.run_app 服务器工作正常,但我无法通过HTTPS访问服务器。不确定我是否不使用 ssl_上下文 正确的方法?任何见解都会受到极大的赞赏。我的服务器示例如下:

import json
import asyncio

from aiohttp import web
from aiomysql import create_pool
from aiomysql import DictCursor

host = 'localhost'
user = 'user'
password = 'password'
db = 'db'

routes = web.RouteTableDef()
headers = {
    'Access-Control-Allow-Origin': '*',
    'Access-Control-Allow-Methods': 'GET,HEAD,OPTIONS,POST,PUT',
    'Access-Control-Allow-Headers': 'Origin, X-Requested-With, Content-Type, Accept, Authorization'
}
async def fetch_data(table):
    async with create_pool(host=host,port=3306,user=user,password=password,db=db) as pool:
        async with pool.get() as conn:
            async with conn.cursor(DictCursor) as cur:
                sql = "SELECT id FROM `{}`"
                sql = sql.format(table)
                await cur.execute(sql)
                dataset = await cur.fetchall()
                return dataset

@routes.get('/hello')
async def hello(request):
    dataset = await fetch_data('my_table')
    return web.json_response(dataset, headers=headers)

app = web.Application()
app.add_routes(routes)
web.run_app(app, port=9090, ssl_context='https')