tornado.wsgi — Interoperability with other Python frameworks and servers¶

    • WSGIAdapter converts a to the WSGI applicationinterface. This is useful for running a Tornado app on anotherHTTP server, such as Google App Engine. See the WSGIAdapter classdocumentation for limitations that apply.
    class WSGIAdapter(application)

    Converts a instance into a WSGI application.

    Example usage:







    See the appengine demofor an example of using this module to run a Tornado app on GoogleApp Engine.

    In WSGI mode asynchronous methods are not supported. This meansthat it is not possible to use , or thetornado.auth or modules.


    4.0 新版功能.

    _class tornado.wsgi.(handlers=None, default_host='', transforms=None, **settings)[源代码]

    A WSGI equivalent of tornado.web.Application.


    4.0 版后已移除: Use a regular and wrap it in WSGIAdapter instead.

    Running WSGI apps on Tornado servers¶

    class tornado.wsgi.WSGIContainer(wsgi_application)[源代码]

    Makes a WSGI-compatible function runnable on Tornado’s HTTP server.


    警告

    WSGI is a synchronous interface, while Tornado’s concurrency modelis based on single-threaded asynchronous execution. This means thatrunning a WSGI app with Tornado’s WSGIContainer is less scalable_than running the same app in a multi-threaded WSGI server like or uwsgi. Use only when there arebenefits to combining Tornado and WSGI in the same process thatoutweigh the reduced scalability.


    Wrap a WSGI function in a WSGIContainer and pass it to torun it. For example:



    1. def simple_app(environ, start_response):
          status = "200 OK"
          response_headers = [("Content-type", "text/plain")]
          start_response(status, response_headers)
          return ["Hello world!\n"]

      container = tornado.wsgi.WSGIContainer(simple_app)
      http_server = tornado.httpserver.HTTPServer(container)
      http_server.listen(8888)
      tornado.ioloop.IOLoop.current().start()




    This class is intended to let other frameworks (Django, web.py, etc)run on the Tornado HTTP server and I/O loop.

    The tornado.web.FallbackHandler class is often useful for mixingTornado and WSGI apps in the same server. See for a complete example.
    _static environ(request)[源代码]

    Converts a to a WSGI environment.