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：
#!/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()
总结
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