ActiveMQ的简单使用

项目中使用的介绍

一、运行ActiveMQ

在文件路径下...\apache-activemq-5.13.3\bin\win64

运行activemq.bat

这是系统中的使用，运行后还可以访问相应的页面。

二、项目中的实践

1.依赖的jar包

<dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-jms</artifactId>
        </dependency>
        <dependency>
            <groupId>org.apache.activemq</groupId>
            <artifactId>activemq-broker</artifactId>
        </dependency>
        <dependency>
            <groupId>org.apache.activemq</groupId>
            <artifactId>activemq-pool</artifactId>
        </dependency>
        <dependency>
            <groupId>org.apache.activemq</groupId>
            <artifactId>activemq-spring</artifactId>
        </dependency>
        <dependency>
            <groupId>org.apache.activemq</groupId>
            <artifactId>artemis-jms-client</artifactId>
        </dependency>
        <dependency>
            <groupId>org.apache.activemq</groupId>
            <artifactId>artemis-jms-server</artifactId>
        </dependency>

2.配置ActiveMQ的配置，要和运行的保持一致，在commom.properties文件中。

activemq.broker.url=tcp://127.0.0.1:61616
activemq.user=admin
activemq.password=admin
activemq.name=datacenter.test
activemq.name.access=datacenter.access

3.applicationContext-mq.xml 中配置

<!-- 1.配置ActiveMQ 连接工厂 -->
    <amq:connectionFactory id="creditMQConnectionFactory"
                           brokerURL="${activemq.broker.url}" userName="${activemq.user}" password="${activemq.password}"  />

    <!-- 2.配置缓存 ConnectionFactory -->
    <bean id="creditMQconnectionFactory" class="org.springframework.jms.connection.CachingConnectionFactory">
        <property name="targetConnectionFactory" ref="creditMQConnectionFactory"/>
        <property name="sessionCacheSize" value="100" />
    </bean>

    <!-- 定义JmsTemplate的Queue类型 -->
    <bean id="creditJmsTemplate" class="org.springframework.jms.core.JmsTemplate">
        <constructor-arg ref="creditMQConnectionFactory" />
        <property name="pubSubDomain" value="false" />
    </bean>

    <!-- 定义授权队列消费者
    <bean id="creditConsumer" class="com.itom.mq.consumer.CreditConsumer"/>-->

    <!-- 定义Queue监听器 -->
    <jms:listener-container destination-type="queue" container-type="default" connection-factory="creditMQconnectionFactory" acknowledge="auto">
    </jms:listener-container>
    <!--运营相关配置结束-->

4.编写生产者和消费者

1） 生产者

import org.apache.activemq.command.ActiveMQQueue;
import org.springframework.jms.core.JmsTemplate;
import org.springframework.stereotype.Component;

import javax.annotation.Resource;
import javax.jms.Queue;
import java.util.Map;
import java.util.concurrent.ConcurrentHashMap;

@Component
public class CreditProducer {

    private Map<String ,Queue> cacheQueue = new ConcurrentHashMap<String ,Queue>();

    @Resource
    private JmsTemplate creditJmsTemplate;

    public void pushCreditData(String queueName ,Object message){

        Queue queue = cacheQueue.get(queueName);
        if(queue == null){
            queue = new ActiveMQQueue(queueName);
            cacheQueue.put(queueName,queue);
        }
        this.creditJmsTemplate.convertAndSend(queue, message);
    }
}

2） 消费者：

public class MessageReceiver implements MessageListener {

    //自己定义的类，使用线程池来处理消息
    @Resource(name = "messageComputePool")
    MessageComputePool pool;

    public void onMessage(Message message) {
        if(message instanceof TextMessage) {
            TextMessage textMessage = (TextMessage) message;
            try {
                String text = textMessage.getText();
                System.out.println(String.format("Received: %s",text));
                JSONObject jsonObj = (JSONObject)JSONObject.parse(text);
                ...
                //消费者接收到消息就可以进行处理了
            } catch (JMSException e) {
                e.printStackTrace();
            }
        }

    }
}

3）使用生产者推消息

@Service("collectService ")
public class CollectServiceImpl implements CollectService {
      public static final Logger LOG  = LoggerFactory.getLogger(CollectServiceImpl.class);

      @Resource
      private CreditProducer creditProducer;

      @Override
      public void collect(CollectParameter parameter) {
            Map dataMap = new HashMap();
            dataMap.put("sourceCode", parameter.getValue());
            dataMap.put("userId",parameter.getUserid());
            creditProducer.pushCreditData("itom.activemq.access", JSON.toJSONString(dataMap));
        }
    }
}

推荐个ActiveMQ入门教程：

http://blog.csdn.net/jolingogo/article/category/1658165