SimpleWebSocket 类型的 setBroadcaster(Broadcaster) 在 Grizzly Ja

Question

我用Grizzly在java中设置websocket服务器。我的问题是我无法将广播公司设置为 websocket 以通过覆盖 WebSocketApplication 来使用优化的 websocket。我按照文档描述的方式进行操作。但我得到了这个错误。

方法setBroadcaster（Broadcaster）来自类型SimpleWebSocket 不可见。

这是我的代码

public class BroadcastApplication extends WebSocketApplication { 
    private final Broadcaster broadcaster;
    public BroadcastApplication(Broadcaster broadcaster) {
        this.broadcaster = broadcaster; 
    }
    @Override public WebSocket createSocket(ProtocolHandler handler, 
            HttpRequestPacket requestPacket, WebSocketListener... listeners) {
        final DefaultWebSocket ws = (DefaultWebSocket) super.createSocket(handler, requestPacket, listeners);
        ws.setBroadcaster(broadcaster); // Got error here
        return ws;
    }
    @Override public void onMessage(WebSocket socket, String data) {
        socket.broadcast(getWebSockets(), data);
    }
}

我的grizzly-websockets版本是2.3.22。欢迎任何建议。

Answer 1

这样的事情应该可以工作：

public class BroadcastApplication extends WebSocketApplication { 
    private final Broadcaster broadcaster;
    public BroadcastApplication(Broadcaster broadcaster) {
        this.broadcaster = broadcaster; 
    }
    @Override
    public WebSocket createSocket(ProtocolHandler handler, 
            HttpRequestPacket requestPacket, WebSocketListener... listeners) {
        return new BroadcastWebSocket(broadcaster, handler, requestPacket, listeners);
    }
    @Override
    public void onMessage(WebSocket socket, String data) {
        socket.broadcast(getWebSockets(), data);
    }
    private static class BroadcastWebSocket extends DefaultWebSocket {
        public BroadcastWebSocket(Broadcaster broadcaster,
                ProtocolHandler protocolHandler,
                HttpRequestPacket request,
                WebSocketListener... listeners) {
            super(protocolHandler, request, listeners);
            this.broadcaster = broadcaster;
        }
    }
}