如何在线程中运行aiohttp服务器？

本文介绍了如何在线程中运行aiohttp服务器？的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！ 问题描述

此aiohttp服务器在线程中的示例失败，并出现 RuntimeError：线程'Thread-1'中没有当前事件循环。错误：

This example of aiohttp server in a thread fails with an RuntimeError: There is no current event loop in thread 'Thread-1'. error:

import threading from aiohttp import web def aiohttp_server(): def say_hello(request): return web.Response(text='Hello, world') app = web.Application(debug=True) app.add_routes([web.get('/', say_hello)]) web.run_app(app) t = threading.Thread(target=aiohttp_server) t.start()

如何在线程中运行aiohttp服务器？

How to run a aiohttp server in thread?

推荐答案

在主线程中创建处理程序，并在子线程中手动创建事件循环。

Create handler in main thread and manually create an event loop in child thread.

import asyncio import threading from aiohttp import web def aiohttp_server(): def say_hello(request): return web.Response(text='Hello, world') app = web.Application(debug=True) app.add_routes([web.get('/', say_hello)]) handler = app.make_handler() return handler def run_server(handler): loop = asyncio.new_event_loop() asyncio.set_event_loop(loop) server = loop.create_server(handler, host='127.0.0.1', port=8089) loop.run_until_complete(server) loop.run_forever() t = threading.Thread(target=run_server, args=(aiohttp_server(),)) t.start()

更新

对于新的 aiohttp ，请使用以下内容，谢谢@Auyer的通知。

Update

For new aiohttp, use the following, thank @Auyer for notification.

import asyncio import threading from aiohttp import web def aiohttp_server(): def say_hello(request): return web.Response(text='Hello, world') app = web.Application() app.add_routes([web.get('/', say_hello)]) runner = web.AppRunner(app) return runner def run_server(runner): loop = asyncio.new_event_loop() asyncio.set_event_loop(loop) loop.run_until_complete(runner.setup()) site = web.TCPSite(runner, 'localhost', 8080) loop.run_until_complete(site.start()) loop.run_forever() t = threading.Thread(target=run_server, args=(aiohttp_server(),)) t.start()