python tornado简单示例

python tornado简单示例

import tornado.ioloop
import tornado.web


class MainHandler(tornado.web.RequestHandler):
    """该函数负责相应定位到该RequestHandler的HTTP GET请求的处理"""
    def get(self):
        self.write("Hello World")


def make_app():
    """函数返回web.Application对象,URL的访问映射到了RequestHandler子类MainHandler中"""
    return tornado.web.Application([(r"/", MainHandler), ])


def main():
    """http://localhost:8888"""
    app = make_app()
    app.listen(8888)
    tornado.ioloop.IOLoop.current().start()


if __name__ == "__main__":
    main()