python 編寫Web App骨架

因爲咱們的Web App創建在asyncio的基礎上，所以用aiohttp寫一個基本的app.py：

import logging; logging.basicConfig(level=logging.INFO) import asyncio, os, json, time from datetime import datetime from aiohttp import web def index(request): return web.Response(body=b'<h1>Awesome</h1>') @asyncio.coroutine def init(loop): app = web.Application(loop=loop) app.router.add_route('GET', '/', index) srv = yield from loop.create_server(app.make_handler(), '127.0.0.1', 9000) logging.info('server started at http://127.0.0.1:9000...') return srv loop = asyncio.get_event_loop() loop.run_until_complete(init(loop)) loop.run_forever() 

運行python app.py，Web App將在9000端口監聽HTTP請求，而且對首頁/進行響應：

$ python3 app.py
INFO:root:server started at http://127.0.0.1:9000... 

這裏咱們簡單地返回一個Awesome字符串，在瀏覽器中能夠看到效果：

這說明咱們的Web App骨架已經搭好了，能夠進一步往裏面添加更多的東西。

http://www.pdfxs.com/cpgjhegfgncpcfefdfcfdjeccfeceecfefdfcfebefcfecdgcfefdgcfdjdecfecegcfefdgcfdjeecfdidd/