tornado write render redirect IP

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

 # -*- coding:utf-8 -*-

 import tornado.web
 import tornado.httpserver
 import tornado.options
 import tornado.ioloop
 import time
 import json
 from tornado.options import define,options

 define('port', default = 8080, help = 'run port', type = int)
 define('version', default = '0.0.1', help = 'version 0.0.1', type = str)

 class MainHandler(tornado.web.RequestHandler):

     def get(self):
         self.write('小红 <br>') # write 可传入参数类型 bytes unicode字符 字典 json
         self.flush() # 半中断
         time.sleep(3)
         user={
             'name' : "小明",
             'age' : 18,
             'gender' : 'male'
         }
         self.write(user)
         self.flush()
         self.write('<br>')
         li = [1,2,3,4,5]
         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()
         self.write(li)
         self.flush()

 '''打开指定网页'''
 class TemHandler(tornado.web.RequestHandler):

     def get(self):
         self.render('01in-out.html')

 '''跳转指定路由'''
 class RecHandler(tornado.web.RequestHandler):

     def get(self):
         self.redirect("/tem")

 '''查看访问服务器的IP地址'''
 class ReqHandler(tornado.web.RequestHandler):

     def get(self):
         self.write(self.request.remote_ip) # 浏览器显示IP地址
         print(type(self.request.remote_ip),repr(self.request.remote_ip)) # 显示在后台服务器上
         print(self.request.full_url)

 application = tornado.web.Application(
     handlers = [
     (r"/",MainHandler),
     (r"/tem",TemHandler),
     (r"/rec",RecHandler),
     (r"/req",ReqHandler),
     ],
     template_path = 'esle',
     debug = True
 )

 if __name__ == '__main__':
     print(options.port)
     print(options.version)
     tornado.options.parse_command_line()
     http_server = tornado.httpserver.HTTPServer(application)
     http_server.listen(options.port)
     tornado.ioloop.IOLoop.instance().start()

2018-02-27 13:40:59