aiohttp AppRunner的用法 _用法

【aiohttp AppRunner的用法】博观而约取，厚积而薄发。这篇文章主要讲述aiohttp AppRunner的用法相关的知识，希望能为你提供帮助。
参考廖雪峰的aiohttp教程,会出现两个DeprecationWarning,

loop argument is deprecated
Application.make_handler(...) is deprecated, use AppRunner API instead

解决方案

loop 参数直接不用就是
参见aiohttp官网,AppRunner的用法:
The simple startup code for serving HTTP site on ‘localhost‘, port 8080 looks like:

runner = web.AppRunner(app) await runner.setup() site = web.TCPSite(runner, ' localhost' , 8080) await site.start()

# -*- coding: utf-8 -*- import logging logging.basicConfig(level=logging.INFO) import os,json,time,asyncio from datetime import datetime from aiohttp import web# def index(request): # 原始简单的url处理函数 #return web.Response(body=b' < h1> Awesome< /h1> ' ,content_type=' text/html' )def init_jinja2(app, **kw): #初始化 jinja2的 env passasync def logger_factory(app, handler): async def logger(request): logging.info(' Request: %s %s' % (request.method, request.path)) return (await handler(request)) return logger#生产post 提交的数据 async def data_factory(app, handler): pass#将url处理函数的返回值转换成 response 对象 async def response_factory(app, handler): pass return response#将blog评论的发布时间转换成多少时间以前 def datetime_filter(t): delta = int(time.time() - t) if delta < 60: return u' 1分钟前' if delta < 3600: return u' %s分钟前' % (delta // 60) if delta < 86400: return u' %s小时前' % (delta // 3600) if delta < 604800: return u' %s天前' % (delta // 86400) dt = datetime.fromtimestamp(t) return u' %s年%s月%s日' % (dt.year, dt.month, dt.day)async def init(loop): db = configs.configs.db await orm.create_pool(loop=loop, **db) #DeprecationWarning: loop argument is deprecated app = web.Application(loop = loop,middlewares=[ #拦截器一个URL在被某个函数处理前，可以经过一系列的middleware的处理。 logger_factory, response_factory #工厂模式 ]) init_jinja2(app, filters=dict(datetime=datetime_filter)) add_routes(app, ' handlers' ) add_static(app)# DeprecationWarning: Application.make_handler(...) is deprecated, use AppRunner API instead runner = web.AppRunner(app) await runner.setup() site = web.TCPSite(runner, ' 192.168.2.101' , 9000) logging.info(' server started at http://192.168.2.101:9000...' ) await site.start()#以前的写法 # srv = await loop.create_server(app.make_handler(), ' 192.168.2.101' , 9000) # logging.info(' server started at http://192.168.2.101:9000...' ) # return srvloop = asyncio.new_event_loop() loop.run_until_complete(init(loop)) loop.run_forever()