write 用法（ self.flush() ）

render （跳转指定网页）用法

redirect（跳转指定路由）用法

self.request.remote_ip 显示用户 IP 地址

 　　lesson2.py

1 # -*- coding:utf-8 -*- 2  3 import tornado.web 4 import tornado.httpserver 5 import tornado.options 6 import tornado.ioloop 7 import time 8 import json 9 from tornado.options import define,options10 11 define('port', default = 8080, help = 'run port', type = int)12 define('version', default = '0.0.1', help = 'version 0.0.1', type = str)13 14 15 class MainHandler(tornado.web.RequestHandler):16 17     def get(self):18         self.write('小红 
') # write 可传入参数类型 bytes unicode字符 字典 json19         self.flush() # 半中断20         time.sleep(3)21         user={22             'name' : "小明",23             'age' : 18,24             'gender' : 'male'25         }26         self.write(user)27         self.flush()28         self.write('
')29         li = [1,2,3,4,5]30         li = json.dumps(li) # write 传入json 时，html语法不会解析，原样输出，直到有 self.flush()31         self.write(li)32         self.flush()33 34 '''打开指定网页'''35 class TemHandler(tornado.web.RequestHandler):36 37     def get(self):38         self.render('01in-out.html')39 40 41 '''跳转指定路由'''42 class RecHandler(tornado.web.RequestHandler):43 44     def get(self):45         self.redirect("/tem")46 47 48 '''查看访问服务器的IP地址'''49 class ReqHandler(tornado.web.RequestHandler):50 51     def get(self):52         self.write(self.request.remote_ip) # 浏览器显示IP地址53         print(type(self.request.remote_ip),repr(self.request.remote_ip)) # 显示在后台服务器上54         print(self.request.full_url)55 56 57 application = tornado.web.Application(58     handlers = [59     (r"/",MainHandler),60     (r"/tem",TemHandler),61     (r"/rec",RecHandler),62     (r"/req",ReqHandler),63     ],64     template_path = 'esle',65     debug = True66 )67 68 69 if __name__ == '__main__':70     print(options.port)71     print(options.version)72     tornado.options.parse_command_line() 73     http_server = tornado.httpserver.HTTPServer(application)74     http_server.listen(options.port)75     tornado.ioloop.IOLoop.instance().start()

 2018-02-27 13:40:59