spring +ActiveMQ 实战 topic selecter指定接收

spring +ActiveMQ 实战 topic selecter指定接收

queue：点对点模式，一个消息只能由一个消费者接受

topic：一对多，发布/订阅模式，需要消费者都在线（可能会导致信息的丢失）

看了网上很多的文件，但大都是不完整的，或不是自己想要的特异性接受功能，特意研究了一下，总结总结

一，下载并安装ActiveMQ

首先我们到apache官网上下载activeMQ（http://activemq.apache.org/download.html），进行解压后运行其bin目录下面的activemq.bat文件启动activeMQ。

二，新建一个maven 项目并导入相关jar包

三，在maven中引入：

 <!-- activemq -->
  <dependency>
    <groupId>org.apache.activemq</groupId>
    <artifactId>activemq-core</artifactId>
    <version>5.7.0</version>
  </dependency>
  <dependency>
    <groupId>org.apache.activemq</groupId>
    <artifactId>activemq-pool</artifactId>
    <version>5.12.1</version>
  </dependency>
</dependencies>

四，spring-active.xml配置

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
       xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
       xmlns:amq="http://activemq.apache.org/schema/core"
       xmlns:context="http://www.springframework.org/schema/context"
       xmlns:mvc="http://www.springframework.org/schema/mvc" xmlns:jms="http://www.springframework.org/schema/jms"
       xsi:schemaLocation="http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans-4.1.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context-4.1.xsd
http://www.springframework.org/schema/mvc
http://www.springframework.org/schema/mvc/spring-mvc-4.1.xsd
http://activemq.apache.org/schema/core
http://activemq.apache.org/schema/core/activemq-core-5.12.1.xsd http://www.springframework.org/schema/jms http://www.springframework.org/schema/jms/spring-jms.xsd">

    <context:component-scan base-package="com.demo.test1.activemq" />
    <mvc:annotation-driven />

    <amq:connectionFactory id="amqConnectionFactory"
                           brokerURL="tcp://127.0.0.1:61616"
                           userName="admin"
                           password="admin" />

    <!-- 配置JMS连接工厂 -->
    <bean id="connectionFactory"
          class="org.springframework.jms.connection.CachingConnectionFactory">
        <constructor-arg ref="amqConnectionFactory" />
        <property name="sessionCacheSize" value="100" />
    </bean>

    <!-- 定义消息队列（Queue） -->
    <bean id="demoQueueDestination" class="org.apache.activemq.command.ActiveMQTopic">
        <!-- 设置消息队列的名字 -->
        <constructor-arg>
            <value>first-queue</value>
        </constructor-arg>
    </bean>

    <jms:listener-container destination-type="topic"
                            container-type="default" connection-factory="connectionFactory"
                            acknowledge="auto">
        <jms:listener destination="first-queue" selector="con=14" ref="queueMessageListener" />
        <jms:listener destination="first-queue" selector="con=15"  ref="queueMessageListener2" />
    </jms:listener-container>

    <!-- 配置JMS模板（Queue），Spring提供的JMS工具类，它发送、接收消息。 -->
    <bean id="jmsTemplate" class="org.springframework.jms.core.JmsTemplate">
        <property name="connectionFactory" ref="connectionFactory" />
        <property name="defaultDestination" ref="demoQueueDestination" />
        <property name="receiveTimeout" value="10000" />
        <!-- true是topic，false是queue，默认是false，此处显示写出false -->
        <property name="pubSubDomain" value="true" />
        <property name="deliveryMode" value="2"/>
    </bean>

    <bean id="queueMessageListener" class="com.demo.test1.activemq.filter.QueueMessageListener" />
    <bean id="queueMessageListener2" class="com.demo.test1.activemq.filter.QueueMessageListener2" />

</beans>

五，springmvc.xml配置

<?xml version="1.0" encoding="UTF-8"?>
<!-- 查找最新的schemaLocation 访问 http://www.springframework.org/schema/ -->
<beans xmlns="http://www.springframework.org/schema/beans"
       xmlns:context="http://www.springframework.org/schema/context"
       xmlns:mvc="http://www.springframework.org/schema/mvc"
       xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
       xsi:schemaLocation="http://www.springframework.org/schema/aop
http://www.springframework.org/schema/aop/spring-aop-4.0.xsd
http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans-4.0.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context-4.0.xsd
http://www.springframework.org/schema/mvc
http://www.springframework.org/schema/mvc/spring-mvc-4.0.xsd">

    <!-- 指定Sping组件扫描的基本包路径 -->
    <context:component-scan base-package="com.demo.test1" >
        <!-- 这里只扫描Controller，不可重复加载Service -->
        <context:include-filter type="annotation" expression="org.springframework.stereotype.Controller"/>
    </context:component-scan>
    <!-- 启用MVC注解 -->
    <mvc:annotation-driven />

    <!-- JSP视图解析器-->
    <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
        <property name="prefix" value="/" />
        <property name="suffix" value=".jsp" />
        <!--  定义其解析视图的order顺序为1 -->
        <property name="order" value="1" />
    </bean>
</beans>

六, web.xml配置

略

七，消息发送接口代码

（1）消息发送接口

import javax.jms.Destination;

public interface ProducerService {

    void sendMessage(Destination destination, final String msg,final int i);

}

（2）消息发送接口实现类

import com.demo.test1.activemq.service.ProducerService;
import org.springframework.jms.core.JmsTemplate;
import org.springframework.jms.core.MessageCreator;
import org.springframework.stereotype.Service;

import javax.annotation.Resource;
import javax.jms.*;

@Service
public class ProducerServiceImpl implements ProducerService {

    @Resource(name="jmsTemplate")
    private JmsTemplate jmsTemplate;

    @Override
    public void sendMessage(Destination destination, final String msg, final int i) {
        System.out.println(Thread.currentThread().getName()+" 向队列"+destination.toString()+"发送消息--------->"+msg);

        jmsTemplate.send(destination, new MessageCreator() {
            public Message createMessage(Session session) throws JMSException {
                TextMessage textMessage = session.createTextMessage(msg);
                textMessage.setIntProperty("con",i);
                return textMessage;
            }
        });
    }

}

八，消息监听代码

（1）queueMessageListener

import javax.jms.*;

public class QueueMessageListener implements MessageListener {

    public void onMessage(Message message) {
        TextMessage tm = (TextMessage) message;
        try {
            System.out.println("MyListenner 1 监听到了文本消息：\t"
                    + tm.getText());
            //do something ...
        } catch (JMSException e) {
            e.printStackTrace();
        }
    }

}

（2）queueMessageListener2

import javax.jms.*;

public class QueueMessageListener2 implements MessageListener {
    @Override
    public void onMessage(Message message) {
        TextMessage tm = (TextMessage) message;
        try {
            System.out.println("MyListenner 2 监听到了文本消息：\t"
                    + tm.getText());
            //do something ...
        } catch (JMSException e) {
            e.printStackTrace();
        }
    }
}

九，控制层

import com.demo.test1.activemq.service.ConsumerService;
import com.demo.test1.activemq.service.ProducerService;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
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.ResponseBody;

import javax.annotation.Resource;
import javax.jms.Destination;
import javax.jms.TextMessage;

/**
 * Created by Administrator on 2017/5/3.
 */
@Controller
public class MessageController {
    private Logger logger = LoggerFactory.getLogger(MessageController.class);
    @Resource(name = "demoQueueDestination")
    private Destination destination;

    //队列消息生产者
    @Resource
    private ProducerService producer;

     @RequestMapping(value = "/SendMessage", method = RequestMethod.GET)
    @ResponseBody
    public void send(String msg,int i) {
        logger.info(Thread.currentThread().getName()+"------------开始发送消息");
        producer.sendMessage(destination,"消息序号："+msg,i);
        logger.info(Thread.currentThread().getName()+"------------发送完毕");
    }
}

十，启动active和tomcat

启动结果：

总结：

由于我们在监听器的配置中配置了selecter属性，因此MyListenner1,只接受con=14的消息，MyListenner2只接受con=15的消息。

　　　　从中可以看到监听的消息队列名称是fist-queue，con值为14的消息，因此值不为14的消息则进入不了该监听消息中。