本文主要分享的是一则关于Tornado高并发处理方法的实例,具体如下:
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#!/bin/env python
# -*- coding:utf-8 -*-
import tornado.httpserver
import tornado.ioloop
import tornado.options
import tornado.web
import tornado.gen
from tornado.concurrent import run_on_executor
from concurrent.futures import ThreadPoolExecutor
import time
from tornado.options import define, options
define( "port" , default = 8000 , help = "run on the given port" , type = int )
class SleepHandler(tornado.web.RequestHandler):
executor = ThreadPoolExecutor( 2 )
@tornado .web.asynchronous
@tornado .gen.coroutine
def get( self ):
# 假如你执行的异步会返回值被继续调用可以这样(只是为了演示),否则直接yield就行
res = yield self .sleep()
self .write( "when i sleep %s s" % res)
self .finish()
@run_on_executor
def sleep( self ):
time.sleep( 5 )
return 5
class JustNowHandler(tornado.web.RequestHandler):
def get( self ):
self .write( "i hope just now see you" )
if __name__ = = "__main__" :
tornado.options.parse_command_line()
app = tornado.web.Application(handlers = [
(r "/sleep" , SleepHandler), (r "/justnow" , JustNowHandler)])
http_server = tornado.httpserver.HTTPServer(app)
http_server.listen(options.port)
tornado.ioloop.IOLoop.instance().start()
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总结
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原文链接:http://blog.csdn.net/qq_28893679/article/details/69437496