python 之tornado 入门

 #!/usr/bin/env python
 # -*- coding:utf-8 -*-
 # ---------------------------------------
 # email  : gengjie@outlook.com
 # Create Time: 4/9/16 20:58
 # ----------------------------------------

 import json
 import time
 from tornado.web import RequestHandler
 from tornado.web import Application
 from tornado.ioloop import IOLoop
 from tornado.log import app_log

 class ArgumentHandler(RequestHandler):
     '''return last name value'''
     def get(self):
         self.write('hello {0}'.format(self.get_argument('name')))

 class ArgumentsHandler(RequestHandler):
     '''return all name args'''
     def get(self):
         self.write('hello {0}'.format(', '.join(self.get_arguments('name'))))

 class BodyHandler(RequestHandler):
     '''Get body'''
     def post(self):
         body = json.loads(self.request.body.decode())
         app_log.warning(self.request.body.decode())
         self.write('hello {0}'.format(body['name']))

 class PathArgsHandler(RequestHandler):
     def get(self, *args, **kwargs):
         self.write('hello {0}'.format(args[0]))

 class PathKwargsHandler(RequestHandler):
     def get(self, *args, **kwargs):
         self.write('hello {0}'.format(kwargs['name']))

 class RemoteHandler(RequestHandler):
     '''Get client Ip'''
     def get(self, *args, **kwargs):
         self.write(self.request.remote_ip)

 class FobiddenHandler(RequestHandler):
     def get(self, *args, **kwargs):
         self.set_status(403)
         self.write('forbidden')

 class CustomStatusHandler(RequestHandler):
     def get(self, *args, **kwargs):
         self.set_status(498, reason='Custom Error.')
         self.finish()

 class HeaderHandler(RequestHandler):
     def get(self, *args, **kwargs):
         self.set_header('X-Header', 'Set_001')
         self.add_header('X-Header', 'Add_001')
         self.write('hello head')

 class MultWriteHandler(RequestHandler):
     def get(self, *args, **kwargs):
         self.write('start\n')
         self.flush()
         for x in range(10):
             self.write('{0}\n'.format(x))
             self.flush()
             time.sleep(0.1)
         self.finish('complete\n')

 if __name__ == '__main__':
     app = Application(
         [
             (r'/', ArgumentHandler),
             (r'/args', ArgumentsHandler),
             (r'/body', BodyHandler),
             (r'/path/args/(.*)', PathArgsHandler),
             (r'/path/kwargs/(?P<name>.*)', PathKwargsHandler),
             (r'/ip', RemoteHandler),
             (r'/403', FobiddenHandler),
             (r'/498', CustomStatusHandler),
             (r'/head', HeaderHandler),
             (r'/multi', MultWriteHandler)
         ]
     )
     app.listen(port=8001, address='0.0.0.0')
     IOLoop.current().start()