how to specify websocket encoder and decoder to simple class

Question

I am writing a simple websocket application. In this I separate out the message sending functionality. More clearly onOpen, onClose, onMessage, onError etc methods are placed in the class which annotated with @ServerEndpoint ie

@ServerEndpoint(value = "/test")
public class TestEndpoint {

    @OnOpen
    public void onOpen(Session session) throws IOException {
    }

    @OnMessage
    public String echo(String message) {
    }

    @OnError
    public void onError(Throwable t) {
    }

    @OnClose
    public void onClose(Session session) {
    }
}

And I want to give responsibility of sending message object to the class MessageSender , ie

public class MessageSender {

  /**
  *
  * This method will take care of sending messages object
  */
  public void sendMessage(){
  }
}

so MessageSender class should make use of websocket Encoder and Decoder class but as per my knowledge we can use Encoders and Decoders only in @ServerEndpoint annotation

like,

@ServerEndpoint(value = "/test", encoder = Encoder.class, decoders = Decoder.class)

is there any way to use encoder and decoder for simple class?

Answer 1

Encoder和Decoder将应用于创建的Session对象，因此，如果将其传递给MessageSender类，然后执行诸如session.getBasicRemote().sendObject(…) ，它将使用在上定义的同一组编码器@ServerEndpoint批注。