ActiveMQ與Spring整合:(3)消息監聽器

JMS監聽器有三種消息監聽器實現：MessageListener，SessionAwareMessageListener，MessageListenerAdapter。消息接受者只需要實現這些接口就可以異步接收消息。

1、實現MessageListener接口，實現MessageListener接口，必須重寫onMessage方法。

package com.hua.spring.jms.listener;

import javax.jms.JMSException;
import javax.jms.Message;
import javax.jms.MessageListener;
import javax.jms.TextMessage;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;


/**
 * @description
 * @date：(2016-8-25 下午10:01:07)
 * @author Administrator
 * @version v1.0
 * @since v1.0
 *
 * Modified history
 *
 *    Modified date:  
 *    Modifier user:     
 *    description: 
 *
 * */
public class ResponseQueueMessageListener implements MessageListener{
	
	private Logger logger=LoggerFactory.getLogger(ResponseQueueMessageListener.class);

	@Override
	public void onMessage(Message message) {
		if(message instanceof TextMessage){
			try {
				String text=((TextMessage) message).getText();
				logger.info("消息生產者接收到響應："+text);
			} catch (JMSException e) {
				logger.error("消息生產者接收消息時發生異常：",e);
				
			}
			
		}
		
	}

}

消息監聽器需要註冊到消息監聽容器中，示例配置：

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
    xmlns:context="http://www.springframework.org/schema/context"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xsi:schemaLocation="http://www.springframework.org/schema/beans 
    http://www.springframework.org/schema/beans/spring-beans-3.2.xsd
    http://www.springframework.org/schema/context
    http://www.springframework.org/schema/context/spring-context-3.2.xsd">
    
	<!-- 連接池  -->
    <bean id="pooledConnectionFactory" class="org.apache.activemq.pool.PooledConnectionFactory" destroy-method="stop">  
        <property name="connectionFactory">  
            <!-- 連接工廠 -->
            <bean class="org.apache.activemq.ActiveMQConnectionFactory">  
                <property name="brokerURL" value="tcp://localhost:61616" />  
            </bean>  
        </property>
         <property name="maxConnections" value="10"/>   
    </bean> 
    
    <!-- 消息模板 -->
    <bean id="jmsTemplate" class="org.springframework.jms.core.JmsTemplate">  
        <property name="connectionFactory" ref="pooledConnectionFactory" />  
        <property name="defaultDestination" ref="queueDestination" />  
        <property name="messageConverter">  
            <bean class="org.springframework.jms.support.converter.SimpleMessageConverter" />
       </property>
         <!-- 消息轉換器 -->  
<!--     	<property name="messageConverter" ref="emailMessageConverter"/> -->
    </bean>
    
      <!-- 配置消息目標 -->
    <bean id="queueDestination" class="org.apache.activemq.command.ActiveMQQueue">  
        <!-- 目標，在ActiveMQ管理員控制檯創建 http://localhost:8161/admin/queues.jsp -->
        <constructor-arg index="0" value="helloQueue" />  
    </bean> 
    <!-- 用於測試消息回覆的 -->  
	<bean id="responseQueue" class="org.apache.activemq.command.ActiveMQQueue">  
	    <constructor-arg>  
	        <value>responseQueue</value>  
	    </constructor-arg>  
	</bean>
    
      <!-- 消息監聽器 -->  
    <bean id="responseMessageListener" class="com.hua.spring.jms.listener.ResponseQueueMessageListener"/>  
    
     <!-- 消息監聽容器 -->   
    <bean id="responseQueueListenerAdapter" class=" org.springframework.jms.listener.DefaultMessageListenerContainer">  
          <property name="connectionFactory" ref="pooledConnectionFactory" />  
        <property name="destination" ref="responseQueue" />  
        <property name="messageListener" ref="responseMessageListener" /> 
         <property name="sessionTransacted" value="false"/> 
    </bean>
  
 
    
    
</beans>

2、實現SessionAwareMessageListener接口，實現這個接口需要實現void onMessage(Message message, Session session)方法。這個接口與MessageListener接口不同之處在於，參數裏面有Session參數，消息接受者接收消息之後可通過session進行回覆消息發送者。

package com.hua.spring.jms.listener;

import javax.jms.Destination;
import javax.jms.JMSException;
import javax.jms.Message;
import javax.jms.MessageListener;
import javax.jms.MessageProducer;
import javax.jms.Session;
import javax.jms.TextMessage;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.jms.listener.SessionAwareMessageListener;

/**
 * @description
 * @date：(2016-8-28 上午9:49:32)
 * @author Administrator
 * @version v1.0
 * @since v1.0
 *
 * Modified history
 *
 *    Modified date:  
 *    Modifier user:     
 *    description: 
 *
 * */
public class QueueDestinationMessageListener implements SessionAwareMessageListener<Message>{
	
	private Logger logger=LoggerFactory.getLogger(QueueDestinationMessageListener.class);
	
	private Destination destination;

	@Override
	public void onMessage(Message message, Session session) throws JMSException {
		if(message instanceof TextMessage){
			try {
				String text=((TextMessage)message).getText();
				logger.info("接受者：我收到消息-->"+text);
				
				MessageProducer producer = session.createProducer(destination);  
		        Message textMessage = session.createTextMessage("Hello sender! I have received your news.");  
		        producer.send(textMessage);
				
			} catch (JMSException e) {
				logger.error("監聽消息發生異常",e);
		
			}
			
		}
		
	}

	public Destination getDestination() {
		return destination;
	}

	public void setDestination(Destination destination) {
		this.destination = destination;
	}

}

同時把消息監聽器註冊到監聽器容器中：

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
    xmlns:context="http://www.springframework.org/schema/context"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xsi:schemaLocation="http://www.springframework.org/schema/beans 
    http://www.springframework.org/schema/beans/spring-beans-3.2.xsd
    http://www.springframework.org/schema/context
    http://www.springframework.org/schema/context/spring-context-3.2.xsd">
    
	<!-- 連接池  -->
    <bean id="pooledConnectionFactory" class="org.apache.activemq.pool.PooledConnectionFactory" destroy-method="stop">  
        <property name="connectionFactory">  
            <!-- 連接工廠 -->
            <bean class="org.apache.activemq.ActiveMQConnectionFactory">  
                <property name="brokerURL" value="tcp://localhost:61616" />  
            </bean>  
        </property>
         <property name="maxConnections" value="10"/>   
    </bean> 
    
    <!-- 消息模板 -->
    <bean id="jmsTemplate" class="org.springframework.jms.core.JmsTemplate">  
        <property name="connectionFactory" ref="pooledConnectionFactory" />  
        <property name="defaultDestination" ref="queueDestination" />  
        <property name="messageConverter">  
            <bean class="org.springframework.jms.support.converter.SimpleMessageConverter" />
       </property>
         <!-- 消息轉換器 -->  
<!--     	<property name="messageConverter" ref="emailMessageConverter"/> -->
    </bean>
    
      <!-- 配置消息目標 -->
    <bean id="queueDestination" class="org.apache.activemq.command.ActiveMQQueue">  
        <!-- 目標，在ActiveMQ管理員控制檯創建 http://localhost:8161/admin/queues.jsp -->
        <constructor-arg index="0" value="helloQueue" />  
    </bean> 
    <!-- 用於測試消息回覆的 -->  
	<bean id="responseQueue" class="org.apache.activemq.command.ActiveMQQueue">  
	    <constructor-arg>  
	        <value>responseQueue</value>  
	    </constructor-arg>  
	</bean>
	
	    <!-- 可以獲取session的MessageListener -->  
    <bean id="queueDestinationMessageListener" class="com.hua.spring.jms.listener.QueueDestinationMessageListener">  
        <property name="destination" ref="responseQueue"/>
    </bean> 
    
     <!-- 消息監聽容器 -->   
    <bean id="responseQueueListenerAdapter" class=" org.springframework.jms.listener.DefaultMessageListenerContainer">  
          <property name="connectionFactory" ref="pooledConnectionFactory" />  
        <property name="destination" ref="queueDestination" />  
        <property name="messageListener" ref="queueDestinationMessageListener" /> 
         <property name="sessionTransacted" value="false"/> 
    </bean>
  
 
    
    
</beans>

3、MessageListenerAdapter接口，MessageListenerAdapter接口由MessageListener, SessionAwareMessageListener擴展而來。消息監聽類只需要實現重載handleMessage方法，最終監聽器會動態匹配參數。

package com.hua.spring.jms.listener;

import java.util.Map;

/**
 * @description
 * @date：(2016-8-29 下午9:19:25)
 * @author Administrator
 * @version v1.0
 * @since v1.0
 *
 * Modified history
 *
 *    Modified date:  
 *    Modifier user:     
 *    description: 
 *
 * */
public class JMSReceiver {
	
	/**
	 * 接收一條轉換的TextMessage消息
	 * */
	public void handleMessage(String message){
		System.out.println(message);
	}
	
	/**
	 *接收一條轉換的ByteMessage消息
	 * */
	public void handleMessage(byte[] message){
		
	}
	
	/**
	 * 接收一條轉換的MapMessage消息
	 * */
	public void handleMessage(Map message){

	}
	
	/**
	 * 接收一條轉換的ObjectMessage消息
	 * */
	public void handleMessage(Object message){

	}
	
}

applicationContext.xml配置

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
    xmlns:context="http://www.springframework.org/schema/context"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xsi:schemaLocation="http://www.springframework.org/schema/beans 
    http://www.springframework.org/schema/beans/spring-beans-3.2.xsd
    http://www.springframework.org/schema/context
    http://www.springframework.org/schema/context/spring-context-3.2.xsd">
    
	<!-- 連接池  -->
    <bean id="pooledConnectionFactory" class="org.apache.activemq.pool.PooledConnectionFactory" destroy-method="stop">  
        <property name="connectionFactory">  
            <!-- 連接工廠 -->
            <bean class="org.apache.activemq.ActiveMQConnectionFactory">  
                <property name="brokerURL" value="tcp://localhost:61616" />  
            </bean>  
        </property>
         <property name="maxConnections" value="10"/>   
    </bean> 
    
    <!-- 消息模板 -->
    <bean id="jmsTemplate" class="org.springframework.jms.core.JmsTemplate">  
        <property name="connectionFactory" ref="pooledConnectionFactory" />  
        <property name="defaultDestination" ref="queueDestination" />  
        <property name="messageConverter">  
            <bean class="org.springframework.jms.support.converter.SimpleMessageConverter" />
       </property>
         <!-- 消息轉換器 -->  
<!--     	<property name="messageConverter" ref="emailMessageConverter"/> -->
    </bean>
    
      <!-- 配置消息目標 -->
    <bean id="queueDestination" class="org.apache.activemq.command.ActiveMQQueue">  
        <!-- 目標，在ActiveMQ管理員控制檯創建 http://localhost:8161/admin/queues.jsp -->
        <constructor-arg index="0" value="helloQueue" />  
    </bean> 
    <!-- 用於測試消息回覆的 -->  
	<bean id="responseQueue" class="org.apache.activemq.command.ActiveMQQueue">  
	    <constructor-arg>  
	        <value>responseQueue</value>  
	    </constructor-arg>  
	</bean>
	
    
    <!-- 通過實現MessageListenerAdapter接口實現消息監聽 -->
    <bean id="jMSReceiver" class="com.hua.spring.jms.listener.JMSReceiver"></bean>
    <bean id="queueDestinationMessageListenerAdapter" class="org.springframework.jms.listener.adapter.MessageListenerAdapter">
        <constructor-arg ref="jMSReceiver"></constructor-arg>
    </bean>
  
  
     <!-- 消息監聽容器 -->   
    <bean id="jMSReceiverQueueListenerAdapter" class=" org.springframework.jms.listener.DefaultMessageListenerContainer">  
          <property name="connectionFactory" ref="pooledConnectionFactory" />  
        <property name="destination" ref="queueDestination" />  
        <property name="messageListener" ref="queueDestinationMessageListenerAdapter" /> 
        <property name="concurrentConsumers" value="100"/>
         <property name="sessionTransacted" value="false"/> 
    </bean>
 
</beans>

ActiveMQ與Spring整合:(3)消息監聽器

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