activemq 对象的传输

来源：互联网发布：淘宝订单不可以评价编辑：程序博客网时间：2024/05/17 21:10

JMS定义了五种不同的消息正文格式，以及调用的消息类型，允许你发送并接收以一些不同形式的数据，提供现有消息格式的一些级别的兼容性。

· StreamMessage -- Java原始值的数据流

· MapMessage--一套名称-值对

· TextMessage--一个字符串对象

· ObjectMessage--一个序列化的 Java对象

· BytesMessage--一个未解释字节的数据流

1.发送者

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packagecom.tech.gps.util;
 
importorg.springframework.jms.core.JmsTemplate;
 
importcom.tech.gps.model.Bus;
 
  
publicclass MessageSender {  
     
    privateJmsTemplate jmsTemplate;  
   
    publicvoid sendMessage(Bus bus){  
        
        jmsTemplate.convertAndSend(bus); 
    }
 
    publicJmsTemplate getJmsTemplate() {
        returnjmsTemplate;
    }
 
    publicvoid setJmsTemplate(JmsTemplate jmsTemplate) {
        this.jmsTemplate = jmsTemplate;
    } 
  
} 

2.消息转化

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packagecom.tech.gps.util;
 
importjava.io.Serializable;
 
importjavax.jms.JMSException;
importjavax.jms.Message;
importjavax.jms.ObjectMessage;
importjavax.jms.Session;
importjavax.jms.TopicPublisher;
 
importorg.apache.activemq.command.ActiveMQObjectMessage;
importorg.springframework.jms.support.converter.MessageConversionException;
importorg.springframework.jms.support.converter.MessageConverter;
 
importcom.tech.gps.model.Bus;
 
publicclass MessageConvertForSys implementsMessageConverter {  
     
    publicMessage toMessage(Object object, Session session)  
            throwsJMSException, MessageConversionException {  
         
        System.out.println("sendMessage:"+object.toString()); 
        ActiveMQObjectMessage msg = (ActiveMQObjectMessage) session.createObjectMessage();
        msg.setObject((Serializable) object);
        returnmsg; 
    } 
      
    publicObject fromMessage(Message message) throwsJMSException,  
            MessageConversionException {  
          
         Bus bus = null;
         if(messageinstanceofActiveMQObjectMessage){
             ActiveMQObjectMessage aMsg = (ActiveMQObjectMessage) message; 
             bus=(Bus) aMsg.getObject();
         }
        returnbus;  
    }
  
}

3.接受消息

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packagecom.tech.gps.util;
 
importjavax.jms.JMSException;
importjavax.jms.Message;
importjavax.jms.MessageListener;
importjavax.jms.ObjectMessage;
 
importcom.tech.gps.model.Bus;
 
  
 
publicclass MessageReceiver implementsMessageListener {  
       
    publicvoid onMessage(Message m) {  
         
         Bus bus= newBus();
         if(minstanceofObjectMessage){
             ObjectMessage objectMessage=(ObjectMessage) m;
         try{
              
             bus=(Bus) objectMessage.getObject();
             String busNo = bus.getBusNO();
             String xpoint = bus.getxPoint();
             String yPoint = bus.getyPoint();
             System.out.println("车编号："+busNo+"  X："+xpoint+"  Y："+yPoint);
         }catch(JMSException e) {
             e.printStackTrace();
         }
         }
          
    }
 
      
} 

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