app.py 文件源码

def dispatch_request(self):
        """
        ???dispatch -> ?????
        request -> function -> response HTTP????
        function -> ?????
        """
        try:
            endpoint, values = self.match_request()
            return self.route_functions[endpoint](**values)
        except HTTPException, e:
            handler = self.error_handlers.get(e.code)
            if handler is None:
                return e
            return handler(e)
        except Exception, e:
            handler = self.error_handlers.get(500)
            if self.debug or handler is None:
                raise
            return handler(e)