Simple use of the tornado of the Python web framework

There are many Python web frameworks, such as Django,flask and so on. Today's main introduction to Tornado, Tornado is a relatively simple, non-barrier Web server architecture written in Python to handle tens of thousands of simultaneous connections, so that the real-time Web services open up. While similar to some of the current web architectures written in Python, such as Django, Tornado is more speed-conscious and able to handle massive amounts of simultaneous traffic. Next, let's start to roll up.

1. First you need to install the Tornado Library: Pip Install tornado

2. Create a new Python file (demo.py) code as follows:

Import Tornado.web

# define a class here and inherit the RequestHandler class as a routing class

Class MainHandler (Tornado.web.RequestHandler):

# Override the Get method

def get (self):

# Output content to interface

Self.write (' Hello, World ')

# Here is the routing configuration

App = Tornado.web.Application ([

('/', MainHandler),

] )

if __name__ = = ' __main__ ':

# Set the Listening port

App.listen (9999)

# Start the server

Tornado.ioloop.IOLoop.instance (). Start ()

3. Run demo.py without error, the description is successful, in the browser to access http://127.0.0.1:9999/can see

It's hello,world.

4. Summary:

About Tornado HelloWorld introduced here, later will update tornado more content, like my article, remember to pay attention to me oh, learn together, grow together!

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Simple use of the tornado of the Python web framework