Hello tornado world

0. install tornado

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pip3 install tornado

1. Write code

Saving those code below as server.py

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#!/usr/bin/env python3
# -*- coding: utf-8 -*-
# @Date    : 2020-04-22 23:35:44
# @Author  : Simon (simon.xie@codewalker.me)
# @Link    : http://blog.codewalker.me
# @Version : 1.0.0

import tornado.web
import tornado.ioloop

class basicRequestHandler(tornado.web.RequestHandler):
    def get(self):
        self.write("hello world")
class staticRequestHandler(tornado.web.RequestHandler):
    def get(self):
        self.render('index.html')

class queryStringRequestHandler(tornado.web.RequestHandler):
    def get(self):
        n = int(self.get_argument('n'))
        result = 'odd' if n % 2 else 'even'
        self.write('ths number {} is {}'.format(n,result))
class resourceRequestHandler(tornado.web.RequestHandler):
    def get(self, mid):
        self.write("Hey we got id: {}".format(mid))

def main():
    app = tornado.web.Application([
        (r'/', basicRequestHandler),
        (r'/static', staticRequestHandler),
        (r'/query', queryStringRequestHandler),
        (r'/resource/([0-9]+)', resourceRequestHandler)
    ])
    app.listen(8081)
    print('server is turn on and listening port 8081')
    tornado.ioloop.IOLoop.current().start()
if __name__ == "__main__":
    main()

2. Run code

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chmod +x server.py
python3 server.py

3. view your first web appliction with tornado

Hit the url with your fever browser

  • http://127.0.0.1:8081/
  • http://127.0.0.1:8081/static
  • http://127.0.0.1:8081/query?n=3
  • http://127.0.0.1:8081/resource/3

EOF
Enjoy
I, simon love this world ❤️