如何在后台接入Spring WebSocket请求？

<dependency>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-websocket</artifactId>
</dependency>

@Configuration
@EnableWebSocket
public class WebSocketConfig implements WebSocketConfigurer {

    @Override
    public void registerWebSocketHandlers(WebSocketHandlerRegistry registry) {
        registry.addHandler(myWebSocketHandler(), "/websocket")
                .setAllowedOrigins("*");
    }

    @Bean
    public WebSocketHandler myWebSocketHandler() {
        return new MyWebSocketHandler();
    }
}

public class MyWebSocketHandler implements WebSocketHandler {

    @Override
    public void afterConnectionEstablished(WebSocketSession session) throws Exception {
        // 连接建立后的处理逻辑
    }

    @Override
    public void handleMessage(WebSocketSession session, WebSocketMessage<?> message) throws Exception {
        // 处理接收到的消息
    }

    @Override
    public void handleTransportError(WebSocketSession session, Throwable exception) throws Exception {
        // 错误处理逻辑
    }

    @Override
    public void afterConnectionClosed(WebSocketSession session, CloseStatus closeStatus) throws Exception {
        // 连接关闭后的处理逻辑
    }

    @Override
    public boolean supportsPartialMessages() {
        return false;
    }
}

@Controller
public class WebSocketController {

    @MessageMapping("/hello")
    @SendTo("/topic/greetings")
    public String greeting(String message) {
        return "Hello, " + message + "!";
    }
}

var socket = new WebSocket('ws://localhost:8080/websocket');

socket.onopen = function() {
    console.log('WebSocket连接已建立');
};

socket.onmessage = function(event) {
    console.log('接收到消息：' + event.data);
};

socket.onclose = function() {
    console.log('WebSocket连接已关闭');
};

socket.send('Hello, Server!');