Tornado高并发处理方法实例代码

  • Z时代
  • 2024-01-10
  • 分类：综合

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()

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