Java 네트워크 프로그래밍의 WebSocket 및 실시간 통신

// 创建 WebSocket 服务器端点
WebSocketServer ws = new WebSocketServer() {

    @Override
    public void onOpen(WebSocket websocket, ClientEndpointConfig cec) {
        System.out.println("客户端已连接");
    }

    @Override
    public void onMessage(String message, WebSocket websocket) {
        System.out.println("收到客户端消息：" + message);
    }

    @Override
    public void onClose(WebSocket websocket) {
        System.out.println("客户端已断开连接");
    }

    @Override
    public void onError(WebSocket websocket, Throwable cause) {
        System.err.println("WebSocket 发生错误：" + cause.getMessage());
    }
};

ws.start();

// 创建 WebSocket 客户端端点
WebSocketClient wsClient = new WebSocketClient() {

    @Override
    public void onOpen(ServerEndpointConfig sec) {
        System.out.println("连接到服务器");
    }

    @Override
    public void onMessage(String message, Session session) {
        System.out.println("收到服务器消息：" + message);
    }

    @Override
    public void onClose(Session session, CloseReason closeReason) {
        System.out.println("连接已关闭");
    }

    @Override
    public void onError(Session session, WebSocketError error) {
        System.err.println("WebSocket 发生错误：" + error.getMessage());
    }
};

wsClient.open("ws://localhost:8080/websocket");