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Spring 4 STOMP Websockets Heartbeat

I cannot find a good resource on how to send heartbeats to clients using websockets in Spring!

I have a core server using this configuration:

@Configuration
@EnableWebSocketMessageBroker
public class WebSocketConfig extends AbstractWebSocketMessageBrokerConfigurer {

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

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

Then I use something like this to send messages to people who subscribe to the number:

this.simpMessagingTemplate.convertAndSend("/room/" + this.roomId, message);

This is the client code used to communicate with the server:

this.connect = function (roomNameParam, connectionCallback) {
    var socket = new SockJS('http://localhost:8080/channels'),

    self.stompClient = Stomp.over(socket);
    self.stompClient.connect({}, function (frame) {
        self.stompClient.subscribe('/room/' + roomNameParam, connectionCallback);
    });
};

I really want to implement heartbeats so that the client knows who is connected and send some data to synchronize the client and server.

Do I need to do this manually?

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4 answers

Spring SockJS . 25 , . . Spring.

+3

heartbeat :

<websocket:message-broker application-destination-prefix="/app">
    <websocket:stomp-endpoint path="/wshandler" allowed-origins="*">
    </websocket:stomp-endpoint>
    <websocket:simple-broker prefix="/topic, /queue" heartbeat="10000,10000" scheduler="pingScheduler"/>
</websocket:message-broker>

<bean id="pingScheduler" class="org.springframework.scheduling.concurrent.ThreadPoolTaskScheduler">
    <property name="poolSize" value="1"/>
    <property name="threadNamePrefix" value="wss-heartbeat-thread-"/>
</bean>
+2

:

.setTaskScheduler(heartBeatScheduler());

, ( ).

@Configuration
public class WebSocketMessageBrokerConfig extends AbstractWebSocketMessageBrokerConfigurer {

    @Override
    public void configureMessageBroker(MessageBrokerRegistry config) {
        config.setApplicationDestinationPrefixes("/app");
        config.enableSimpleBroker("/topic", "/queue", "/user")
                .setTaskScheduler(heartBeatScheduler());
    }

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

    @Bean
    public TaskScheduler heartBeatScheduler() {
        return new ThreadPoolTaskScheduler();
    }

}
+1

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