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
 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,options
10 
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 <br>') # write 可传入参数类型 bytes unicode字符 字典 json
19         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('<br>')
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 = True
66 )
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