问如何将事件数据和事件名称从spring boot发送到angular？

EN

@CrossOrigin("*")
@RestController
public class MessageController {

    @Autowired
    MessageService messageService;

    @Autowired
    ApplicationEventPublisher applicationEventPublisher;

    private static final Logger logger = LoggerFactory.getLogger(MessageController.class);

    @GetMapping(value = "/event/")
    public void getEvent(@RequestHeader(value = "Content-Type", defaultValue = "text/event-stream")) 
    {
        logger.info("AWSTranslateController:: getEvent() method /event");
        MessageEvent messageEvent = new MessageEvent (this, "receiver3", response);
        applicationEventPublisher.publishEvent(messageEvent );
    }
}

public class MessageEvent extends ApplicationEvent{
    private static final long serialVersionUID = 1L;
    private Object eventResponse;
    private String eventName;

    public MessageEvent(Object source, String eventName, Object eventResponse) {
        super(source);
        this.eventName = eventName;
       this.eventResponse = eventResponse;
    }

    public Object getEventResponse() {
        return eventResponse;
    }

    public String getEventName() {
        return eventName;
    }

}