在Spring-boot中路由websocket目标

@Controller
public class WebSocketController {

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

@Configuration
@EnableWebSocket
public class WebSocketConfig implements WebSocketConfigurer {

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

    @Bean
    public WebSocketHandler webSocketHandler() {
        return new WebSocketHandler();
    }
}

public class WebSocketHandler extends TextWebSocketHandler {

    @Override
    protected void handleTextMessage(WebSocketSession session, TextMessage message) throws Exception {
        // 处理收到的消息
        String payload = message.getPayload();
        // 发送消息给客户端
        session.sendMessage(new TextMessage("Received: " + payload));
    }
}

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

socket.onopen = function() {
    console.log("Connected to WebSocket");
    socket.send("World");
};

socket.onmessage = function(event) {
    console.log("Received: " + event.data);
};

socket.onclose = function(event) {
    console.log("Disconnected from WebSocket");
};