在Java中使用Milo進行WebSocket協議的通信可以通過以下步驟實現：

1. 添加Milo的依賴項到你的項目中。你可以在Milo的GitHub倉庫中找到相關的依賴配置。

2. 創建一個WebSocket客戶端連接到OPC UA服務器。你可以使用以下代碼來創建一個WebSocket客戶端連接：

WebSocketClientConfig config = WebSocketClientConfig.builder()
    .setConnectTimeout(5000)
    .build();

OpcUaClientConfig opcUaClientConfig = OpcUaClientConfig.builder()
    .setApplicationName(LocalizedText.english("Test"))
    .setApplicationUri("urn:test:test")
    .setEndpointUrl("opc.tcp://localhost:12685/test")
    .setRequestTimeout(uint(5000))
    .build();

CompletableFuture<OpcUaClient> future = OpcUaClient.create(
    opcUaClientConfig,
    config
).connect();

3. 發送和接收消息。一旦連接建立，你可以使用以下代碼來發送和接收消息：

future.thenAccept(client -> {
    client.addSubscription(subscription);

    client.addSubscriptionListener(subscriptionListener);

    client.addSessionListener(new SessionListener() {
        @Override
        public void onSessionActivated(OpcUaClient client) {
            //Session activated
        }

        @Override
        public void onSessionClosed(OpcUaClient client, Session session) {
            //Session closed
        }
    });

    client.addRequestListener(new RequestListener() {
        @Override
        public void onRequestsClosed(OpcUaClient client, List<CompletableFuture<? extends UaRequest>> futures) {
            //Requests closed
        }
    });

    client.addNotificationListener(notificationListener);

    client.addMonitoredItemListener(new MonitoredItemListener() {
        @Override
        public void onDataChange(UaMonitoredItem item, DataValue newValue, DataValue oldValue) {
            //Data changed
        }
    });

    client.addSubscriptionListener(subscriptionListener);

    client.addSubscription(createSubscription());

    client.addSubscriptionListener(subscriptionListener);

    client.addSubscription(subscription);

    client.addSubscriptionListener(subscriptionListener);

    client.addSubscription(subscription);

    client.addSubscriptionListener(subscriptionListener);

    client.addSubscription(subscription);

    client.addSubscriptionListener(subscriptionListener);

    client.addSubscription(subscription);

    client.addSubscriptionListener(subscriptionListener);

    client.addSubscription(subscription);

    client.addSubscriptionListener(subscriptionListener);

    client.addSubscription(subscription);

    client.addSubscriptionListener(subscriptionListener);

    client.addSubscription(subscription);
});

通過上面的步驟，你可以使用Java Milo進行WebSocket協議的通信。在實際應用中，你可能需要根據具體的需求進一步擴展和優化代碼。