消息流

@Configuration
@EnableWebSocketMessageBroker
public class WebSocketConfiguration implements WebSocketMessageBrokerConfigurer {

	@Override
	public void registerStompEndpoints(StompEndpointRegistry registry) {
		registry.addEndpoint("/portfolio");
	}

	@Override
	public void configureMessageBroker(MessageBrokerRegistry registry) {
		registry.setApplicationDestinationPrefixes("/app");
		registry.enableSimpleBroker("/topic");
	}
}

@Configuration
@EnableWebSocketMessageBroker
class WebSocketConfiguration : WebSocketMessageBrokerConfigurer {
	override fun registerStompEndpoints(registry: StompEndpointRegistry) {
		registry.addEndpoint("/portfolio")
	}

	override fun configureMessageBroker(registry: MessageBrokerRegistry) {
		registry.setApplicationDestinationPrefixes("/app")
		registry.enableSimpleBroker("/topic")
	}
}

@Controller
public class GreetingController {

	@MessageMapping("/greeting")
	public String handle(String greeting) {
		return "[" + getTimestamp() + ": " + greeting;
	}

	private String getTimestamp() {
		return new SimpleDateFormat("MM/dd/yyyy h:mm:ss a").format(new Date());
	}

}

@Controller
class GreetingController {
	
	@MessageMapping("/greeting")
	fun handle(greeting: String): String {
		return "[${getTimestamp()}: $greeting"
	}

	private fun getTimestamp(): String {
		return SimpleDateFormat("MM/dd/yyyy h:mm:ss a").format(Date())
	}
}