Tornado高并发处理方法实例代码
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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