如何使用Java Milo进行WebSocket协议的通信_维修百科_

在Java中使用Milo进行WebSocket协议的通信可以通过以下步骤实现：

添加Milo的依赖项到你的项目中。你可以在Milo的GitHub仓库中找到相关的依赖配置。

创建一个WebSocket客户端连接到OPC UA服务器。你可以使用以下代码来创建一个WebSocket客户端连接：

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();

发送和接收消息。一旦连接建立，你可以使用以下代码来发送和接收消息：

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);});