spring+activemq实战之配置监听多队列实现不同队列消息消费
摘要: 最近在项目开发中，需要用到activemq，用的时候，发现在同一个项目中point-to-point模式中，配置多个队列，消息生成者只能往一个队列中发消息或者往多个队列发送相同消息，并且监听器只能监听一个队列，这样配置多个队列也没有意义，作者想要实现的是：配置多个队列，并且生产者可以往多个队列中发送不同的消息，监听器消费时，可以判断根据不同的队列进行相应的业务处理，网上搜了一个，发现都是单个队列和监听，研究了一下，发现是可以实现的，废话不多说，直接上代码：
项目结构截图
maven所需依赖
4.0.0
com.gxf
springmq
war
0.0.1-SNAPSHOT
springmq Maven Webapp
http://maven.apache.org
4.1.8.RELEASE
3.1.0
junit
junit
4.10
test
jstl
jstl
1.2
javax.servlet
javax.servlet-api
${javax.servlet}
org.springframework
spring-core
${springframework}
org.springframework
spring-context
${springframework}
org.springframework
spring-tx
${springframework}
org.springframework
spring-webmvc
${springframework}
org.springframework
spring-jms
${springframework}
org.apache.xbean
xbean-spring
3.16
org.apache.activemq
activemq-core
5.7.0
org.apache.activemq
activemq-pool
5.14.3
springmq
-activemq配置文件：activemq.xml
-springmvc配置文件：springmvc.xml
-Controll层 MainHandler.java代码：
package com.gxf.handler;
import java.text.SimpleDateFormat;
import java.util.*;
import javax.annotation.Resource;
import javax.jms.Destination;
import org.apache.activemq.command.ActiveMQDestination;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.servlet.ModelAndView;
import com.gxf.service.ProducerService;
/**
*
* @author stark2017
*
*/
@Controller
public class MainHandler {
//队列名
@Resource(name="queueDestination")
private Destination queueDestination;
//队列消息生产者
@Resource(name="producerService")
private ProducerService producerService;
@RequestMapping(value="/main",method=RequestMethod.GET)
public String producer(){
return "main";
}
/**
* 往队列queue1中发送消息
* @param message
* @return
*/
@RequestMapping(value="/sendone",method=RequestMethod.POST)
public String producer(@RequestParam("message") String message) {
/**
* 将destination强制转换为ActiveMQDestination，在ActiveMQDestination对象中，
* 通过getCompositeDestinations()方法获取destination队列数组：queue://queue1 queue://queue2
*
*/
ActiveMQDestination activeMQDestination=(ActiveMQDestination) queueDestination;
/**
* 往队列queue1中发送文本消息
*/
System.out.println("往队列"+activeMQDestination.getCompositeDestinations()[0].getPhysicalName()+"中发送文本消息");
producerService.sendTxtMessage(activeMQDestination.getCompositeDestinations()[0], message);
/**
* 往队列queue1中发送MapMessage消息
*/
System.out.println("往队列"+activeMQDestination.getCompositeDestinations()[0].getPhysicalName()+"中发送MapMessage消息");
producerService.sendMapMessage(activeMQDestination.getCompositeDestinations()[0], message);
//String bb="fdsalfkasdfkljasd;flkajsfd";
//byte[] b = bb.getBytes();
// producer.sendBytesMessage(demoQueueDestination, b);
//producer.sendMapMessage(mqQueueDestination, message);
return "main";
}
/**
* 往消息队列queue2中发送消息
* @param message
* @return
*/
@RequestMapping(value="/sendtwo",method=RequestMethod.POST)
public String producertwo(@RequestParam("message") String message) {
/**
* 将destination强制转换为ActiveMQDestination，在ActiveMQDestination对象中，
* 通过getCompositeDestinations()方法获取destination队列数组：queue://queue1 queue://queue2
*
*/
ActiveMQDestination activeMQDestination=(ActiveMQDestination) queueDestination;
/**
* 队列queue2中发送文本消息
*/
System.out.println("往队列"+activeMQDestination.getCompositeDestinations()[1].getPhysicalName()+"中发送文本消息");
producerService.sendTxtMessage(activeMQDestination.getCompositeDestinations()[1], message);
/**
* 队列queue2中发送mapMessage消息
*/
System.out.println("往队列"+activeMQDestination.getCompositeDestinations()[1].getPhysicalName()+"中发送文本消息");
producerService.sendMapMessage(activeMQDestination.getCompositeDestinations()[1], message);
String bb="fdsalfkasdfkljasd;flkajsfd";
byte[] b = bb.getBytes();
// producer.sendBytesMessage(demoQueueDestination, b);
//producer.sendMapMessage(mqQueueDestination, message);
return "main";
}
}-生产者ProducerService.java代码：
package com.gxf.service;
import java.io.Serializable;
import java.util.List;
import java.util.Map;
import javax.annotation.Resource;
import javax.jms.BytesMessage;
import javax.jms.Destination;
import javax.jms.JMSException;
import javax.jms.MapMessage;
import javax.jms.Message;
import javax.jms.Session;
import javax.jms.StreamMessage;
import org.springframework.jms.core.JmsTemplate;
import org.springframework.jms.core.MessageCreator;
import org.springframework.stereotype.Service;
@Service
public class ProducerService {
@Resource(name = "jmsTemplate")
private JmsTemplate jmsTemplate;
/**
* 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...");
}
/**
* 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...");
}
/**
* 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...");
}
/**
* 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...");
}
/**
* 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...");
}
}-队列消息监听器QueueMessageListener.java代码：
package com.gxf.listener;
import javax.jms.BytesMessage;
import javax.jms.JMSException;
import javax.jms.MapMessage;
import javax.jms.Message;
import javax.jms.MessageListener;
import javax.jms.ObjectMessage;
import javax.jms.StreamMessage;
import javax.jms.TextMessage;
import org.apache.activemq.advisory.DestinationEvent;
import org.apache.activemq.command.ActiveMQDestination;
import org.apache.activemq.command.ActiveMQMessage;
import org.apache.activemq.command.DestinationInfo;
public class QueueMessageListener implements MessageListener {
//当收到消息后，自动调用该方法
@Override
public void onMessage(Message message) {
try {
ActiveMQDestination queues=(ActiveMQDestination)message.getJMSDestination();
/**
* 监听消息队列queue1中的消息
*/
if(queues.getPhysicalName().equalsIgnoreCase("queue1"))
{
System.out.println("监听队列:"+queues.getPhysicalName()+"消费了消息:");
// 如果是文本消息
if (message instanceof TextMessage) {
TextMessage tm = (TextMessage) message;
try {
System.out.println("from get textMessage：\t" + tm.getText());
} catch (JMSException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
// 如果是Map消息
if (message instanceof MapMessage) {
MapMessage mm = (MapMessage) message;
try {
System.out.println("from get MapMessage：\t" + mm.getString("msgId"));
} catch (JMSException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}
/**
* 监听消息队列queue2中的消息
*/
if(queues.getPhysicalName().equalsIgnoreCase("queue2"))
{
System.out.println("监听队列:"+queues.getPhysicalName()+"消费了消息:");
// 如果是文本消息
if (message instanceof TextMessage) {
TextMessage tm = (TextMessage) message;
try {
System.out.println("from get textMessage：\t" + tm.getText());
} catch (JMSException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
// 如果是Map消息
if (message instanceof MapMessage) {
MapMessage mm = (MapMessage) message;
try {
System.out.println("from get MapMessage：\t" + mm.getString("msgId"));
} catch (JMSException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}
} catch (JMSException e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
}
// 如果是Object消息
if (message instanceof ObjectMessage) {
ObjectMessage om = (ObjectMessage) message;
System.out.println("from get ObjectMessage：\t");
}
// 如果是bytes消息
if (message instanceof BytesMessage) {
System.out.println("from get BytesMessage：\t");
byte[] b = new byte[1024];
int len = -1;
BytesMessage bm = (BytesMessage) message;
try {
while ((len = bm.readBytes(b)) != -1) {
System.out.println(new String(b, 0, len));
}
} catch (JMSException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
// 如果是Stream消息
if (message instanceof StreamMessage) {
System.out.println("from get BytesMessage：\t");
StreamMessage sm = (StreamMessage) message;
try {
System.out.println(sm.readString());
System.out.println(sm.readInt());
} catch (JMSException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}}
}-启动项目访问main,进行消息发送：
后台打印往不同队列发送的消息和监听到不同队列中的消息：
队列queue1发送消费了14条消息，queue2发送消费了10条消息：
到此想要的功能需求已实现
文章来源：https://my.oschina.net/u/3613230/blog/1457227