Sending object using spring boot JMS

Question

I made 2 classes : 1 to send and 1 to receive. Currently I can send just a basic string and it works well

Sender

@Component
public class Sender {

    @Autowired
    private JmsTemplate jmsTemplate;

    //Script must be serializable
    public void testSend(/*Script*/String message)
    {
        jmsTemplate.convertAndSend("my-destination", message);      
    }
}

Receiver

@Component
public class Receiver {

    @Autowired
    private ConfigurableApplicationContext context;

    @JmsListener(destination = "my-destination")
    public void receive(String message) {
        System.out.println(message);

        try {
            Thread.sleep(4000);
        } catch (InterruptedException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }
        context.close();
    }
}

I can't implement proper code here, if someone can just show me how to do, I'd grateful

I would make almost the same thing but to send complex java objects (serializable). And the reeceiver class should be able to recognize the class of the object.

Answer 1

you can directly creates a ByteMessage and serialize your object in (the object have to be Serializable) :

    this.jmsTemplate.send("my-destination", new MessageCreator() {
        public Message createMessage(Session session) throws JMSException {
            final ByteArrayOutputStream bOut = new ByteArrayOutputStream();
            final ObjectOutputStream oOut = new ObjectOutputStream(bOut);
            oOut.writeObject(_object); // where object is the object to serialize
            bytes[] data = bOut.toByteArray();
            return session.createByteMessage(data);
        }
    });

and

    @JmsListener(destination = "my-destination")
    public void receive(Message message) {
        final BytesMessage message = (BytesMessage) _message;
        final byte[] array = new byte[Long.valueOf(message.getBodyLength()).intValue()];
        message.readBytes(array);
        final ByteArrayInputStream bIn = new ByteArrayInputStream(_bytes);
        final ObjectInputStream oIn = new ObjectInputStream(bIn);
        Object obj = oIn.readObject(); // the deserialized object
    }