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