在 WebsocketHandler 之外使用 connections = set() 并在打开连接时使用 connections.add(self).不要忘记在关闭时使用 connections.remove(self) 删除它们.

Use connections = set() outside the WebsocketHandler and add every client on opening a connection with connections.add(self). Do not forget to remove them on closing with connections.remove(self).

现在，您可以通过以下方式从 websocket 线程中访问 write_message:[client.write_message('#your_message') for client in connections]

Now, you are able to access write_message out of the websocket thread through: [client.write_message('#your_message') for client in connections]