Message Type Message middleware _ActiveMQ

Activemq Message Type 
JMS specification message types TextMessage, MapMessage, ObjectMessage, BytesMessage, and other five StreamMessage. ActiveMQ also achieved with a corresponding, respectively, below we look at the combined five kinds Spring JMS message type of transceiver code. 
1, TextMessage

/**
     * 向指定Destination发送text消息
     * @param destination
     * @param message
     */
    public void sendTxtMessage(Destination destination, final String message){
        if(null == destination){
            destination = jmsTemplate.getDefaultDestination();
        }
        jmsTemplate.send(destination, new MessageCreator() {
            public Message createMessage(Session session) throws JMSException {
                return session.createTextMessage(message);
            }
        });
        System.out.println("springJMS send text message...");
    }

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2、MapMessage

/**
     * 向指定Destination发送map消息
     * @param destination
     * @param message
     */
    public void sendMapMessage(Destination destination, final String message){
        if(null == destination){
            destination = jmsTemplate.getDefaultDestination();
        }
        jmsTemplate.send(destination, new MessageCreator() {
            public Message createMessage(Session session) throws JMSException {
                MapMessage mapMessage = session.createMapMessage();
                mapMessage.setString("msgId",message);
                return mapMessage;
            }
        });
        System.out.println("springJMS send map message...");
    }

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3、ObjectMessage

/**
     * 向指定Destination发送序列化的对象
     * @param destination
     * @param object object 必须序列化
     */
    public void sendObjectMessage(Destination destination, final Serializable object){
        if(null == destination){
            destination = jmsTemplate.getDefaultDestination();
        }
        jmsTemplate.send(destination, new MessageCreator() {
            public Message createMessage(Session session) throws JMSException {
                return session.createObjectMessage(object);
            }
        });
        System.out.println("springJMS send object message...");
    }

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4, Replacement Message

/**
     * 向指定Destination发送字节消息
     * @param destination
     * @param bytes
     */
    public void sendBytesMessage(Destination destination, final byte[] bytes){
        if(null == destination){
            destination = jmsTemplate.getDefaultDestination();
        }
        jmsTemplate.send(destination, new MessageCreator() {
            public Message createMessage(Session session) throws JMSException {
                BytesMessage bytesMessage = session.createBytesMessage();
                bytesMessage.writeBytes(bytes);
                return bytesMessage;

            }
        });
        System.out.println("springJMS send bytes message...");
    }

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5、StreamMessage

/**
     * 向默认队列发送Stream消息
     */
    public void sendStreamMessage(Destination destination) {
        jmsTemplate.send(new MessageCreator() {
            public Message createMessage(Session session) throws JMSException {
                StreamMessage message = session.createStreamMessage();
                message.writeString("stream string");
                message.writeInt(11111);
                return message;
            }
        });
        System.out.println("springJMS send Strem message...");
    }

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Message receiving processing section:

/ * * 
     * For a corresponding processing according to the message type 
     * @param destination message transmission / reception common to the Destination 
     * @throws a JMSException 
     * / 
    public  void the receive (Where do you want the Destination) throws a JMSException { 
        the Message Message = jmsTemplate.receive (Where do you want); 

        // If a text message 
        IF (message TextMessage the instanceof) { 
            TextMessage (TM) = (TextMessage) message; 
            the System. OUT .println ( " from " + destination.toString () + " GET textMessage: \ T " + tm.getText ()); 
        }

        // 如果是Map消息
        if (message instanceof MapMessage) {
            MapMessage mm = (MapMessage) message;
            System.out.println("from" + destination.toString() + " get textMessage：\t" + mm.getString("msgId"));
        }

        // 如果是Object消息
        if (message instanceof ObjectMessage) {
            ObjectMessage om = (ObjectMessage) message;
            ExampleUser exampleUser = (ExampleUser) om.getObject();
            System.out.println("from" + destination.toString() + " get ObjectMessage：\t"
                    + ToStringBuilder.reflectionToString(exampleUser));
        }

        // 如果是bytes消息
        if (message instanceof BytesMessage) {
            byte[] b = new byte[1024];
            int len = -1;
            BytesMessage bm = (BytesMessage) message;
            while ((len = bm.readBytes(b)) != -1) {
                System.out.println(new String(b, 0, len));
            }
        }

        // 如果是Stream消息
        if (message instanceof StreamMessage) {
            StreamMessage sm = (StreamMessage) message;
            System.out.println(sm.readString());
            System.out.println(sm.readInt());
        }
    }

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