ActiveMQ (三)：项目实践
1. 简单项目demo
Com.hoo.mq路径下(除了com.hoo.mq.spring)是普通java中使用activeMQ.
Com.hoo.mq.spring路径下是非web环境spring集成activeMQ。
Com.tgb.SpringActivemq路径下是web环境下spring mvc集成activeMQ.
目录结构如下：
github下载地址：https://github.com/Monkey-mi/TestActiveMQ.git
2. web项目
2.1 生产者
spring-activemq.xml
<?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" xmlns:amq="http://activemq.apache.org/schema/core" xmlns:jms="http://www.springframework.org/schema/jms" xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-4.0.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.0.xsd http://www.springframework.org/schema/jms http://www.springframework.org/schema/jms/spring-jms-4.0.xsd http://activemq.apache.org/schema/core http://activemq.apache.org/schema/core/activemq-core-5.8.0.xsd"> <!-- 加载activemq的属性配置文件 --> <context:property-placeholder location="classpath:config/activemq.properties" /> <!-- ActiveMQ 连接工厂 --> <!-- 真正可以产生Connection的ConnectionFactory，由对应的 JMS服务厂商提供--> <!-- 如果连接网络：tcp://ip:61616；未连接网络：tcp://localhost:61616 以及用户名，密码--> <amq:connectionFactory id="amqConnectionFactory" brokerURL="tcp://localhost:61618" userName="admin" password="topsun" /> <!-- Spring Caching连接工厂 --> <!-- Spring用于管理真正的ConnectionFactory的ConnectionFactory org.springframework.jms.connection.CachingConnectionFactory org.apache.activemq.pool.PooledConnectionFactory --> <bean id="connectionFactory" class="org.springframework.jms.connection.CachingConnectionFactory"> <!-- 目标ConnectionFactory对应真实的可以产生JMS Connection的ConnectionFactory --> <property name="targetConnectionFactory" ref="amqConnectionFactory"></property> <!-- 同上，同理 --> <!-- <constructor-arg ref="amqConnectionFactory" /> --> <!-- Session缓存数量 --> <property name="sessionCacheSize" value="100" /> <!-- 接收者ID，用于Topic订阅者的永久订阅 clientId 作为客户端的标识，连接同一服务的客户端不能拥有相同的 --> <property name="clientId" value="client-B" /> </bean> <!-- Spring JmsTemplate 的消息生产者 start--> <!-- 定义JmsTemplate的Queue类型 --> <bean id="jmsQueueTemplate" class="org.springframework.jms.core.JmsTemplate"> <!-- 这个connectionFactory对应的是我们定义的Spring提供的那个ConnectionFactory对象 --> <constructor-arg ref="connectionFactory" /> <!-- 非pub/sub模型（发布/订阅），即队列模式 --> <property name="pubSubDomain" value="false" /> <!-- 订阅消息持久化 --> <property name="deliveryPersistent" value="true" /> <!-- 配置持久化，同上 deliveryPersistent <property name="deliveryMode" value="2" /> --> </bean> <!-- 定义JmsTemplate的Topic类型 --> <bean id="jmsTopicTemplate" class="org.springframework.jms.core.JmsTemplate"> <!-- 这个connectionFactory对应的是我们定义的Spring提供的那个ConnectionFactory对象 --> <constructor-arg ref="connectionFactory" /> <!-- pub/sub模型（发布/订阅） --> <property name="pubSubDomain" value="true" /> <!-- 订阅消息持久化 --> <property name="deliveryPersistent" value="true" /> <!-- 配置持久化，同上 deliveryPersistent <property name="deliveryMode" value="2" /> --> </bean> <!--Spring JmsTemplate 的消息生产者 end--> </beans>
QueueSender.java
package com.outsideasy.activemq.service; import java.io.Serializable; import javax.jms.JMSException; import javax.jms.MapMessage; import javax.jms.Message; import javax.jms.Session; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.beans.factory.annotation.Qualifier; import org.springframework.jms.core.JmsTemplate; import org.springframework.jms.core.MessageCreator; import org.springframework.stereotype.Component; import org.springframework.stereotype.Service; @Component public class QSender { //队列名 private static final String QUEUENAME = "outside.order"; @Autowired @Qualifier("jmsQueueTemplate") private JmsTemplate jmsTemplate;//通过@Qualifier修饰符来注入对应的bean /** * 发送一条消息到指定的队列（目标） * @params s 序列化对象 和 receiver 中的getObject对应 */ public void orderSend(final Serializable s){ jmsTemplate.send(QUEUENAME, new MessageCreator() { @Override public Message createMessage(Session session) throws JMSException { return session.createObjectMessage(s); } }); } }
PurchaseOrderService.java
public void saveAccpetOrderByID(Map<String,Object> params){ int status = getPurchaseOrderStatus(params); if(status ==10){ params.put("order_status", 20); mapper.updateOrderStatus(params); purchaseOrderOperatingService.addPurchaseOrderOperating(params); //触发PO确认接单 PurchaseOrderVo purchaseOrderVo = mapper.getOrderDetailsByID(params); PurchaseOrderSender sender = new PurchaseOrderSender();//构造发送数据 这里的对象和接受者对象在项目中的包路径相同，否则无法反序列化 sender.setPur_order_id(purchaseOrderVo.getPur_order_id()); sender.setOrder_bh(purchaseOrderVo.getOrder_bh()); sender.setOrder_status(purchaseOrderVo.getOrder_status()); sender.setAgreement_bh(purchaseOrderVo.getAgreement_bh()); sender.setR_opreate_dt(purchaseOrderVo.getR_opreate_dt()); sender.setSource_type(purchaseOrderVo.getSource_type()); qSender.orderSend(sender);//调用activemq发送消息对象 }else{ } }
2.2 消费者
<?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" xmlns:amq="http://activemq.apache.org/schema/core" xmlns:jms="http://www.springframework.org/schema/jms" xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-4.0.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.0.xsd http://www.springframework.org/schema/jms http://www.springframework.org/schema/jms/spring-jms-4.0.xsd http://activemq.apache.org/schema/core http://activemq.apache.org/schema/core/activemq-core-5.8.0.xsd"> <context:property-placeholder location="classpath:sysconfig/activemq.properties" /> <bean id="qReceiver" class="com.outsideasy.activemq.service.QReceiver"/> <!-- ActiveMQ 连接工厂 --> <!-- 真正可以产生Connection的ConnectionFactory，由对应的 JMS服务厂商提供--> <!-- 如果连接网络：tcp://ip:61616；未连接网络：tcp://localhost:61616 以及用户名，密码--> <amq:connectionFactory id="amqConnectionFactory" brokerURL="tcp://localhost:61618" userName="admin" password="topsun" /> <!-- Spring Caching连接工厂 --> <!-- Spring用于管理真正的ConnectionFactory的ConnectionFactory org.springframework.jms.connection.CachingConnectionFactory org.apache.activemq.pool.PooledConnectionFactory --> <bean id="connectionFactory" class="org.springframework.jms.connection.CachingConnectionFactory"> <!-- 目标ConnectionFactory对应真实的可以产生JMS Connection的ConnectionFactory --> <property name="targetConnectionFactory" ref="amqConnectionFactory"></property> <!-- 同上，同理 --> <!-- <constructor-arg ref="amqConnectionFactory" /> --> <!-- Session缓存数量 --> <property name="sessionCacheSize" value="100" /> <!-- 接收者ID，用于Topic订阅者的永久订阅--> <property name="clientId" value="client-C" /> </bean> <!-- 消息消费者 start--> <!-- 定义Queue监听器 --> <jms:listener-container destination-type="queue" container-type="default" connection-factory="connectionFactory" acknowledge="auto"> <jms:listener destination="outside.order" ref="qReceiver"/> <!-- <jms:listener destination="test.queue" ref="queueReceiver2"/> --> </jms:listener-container> <!-- 定义Topic监听器 --> <jms:listener-container destination-type="durableTopic" container-type="default" connection-factory="connectionFactory" acknowledge="auto" client-id="client-C"> <!-- 注意：定义 subscription（即：durableSubscriptionName）持久化主题名字 --> <!-- <jms:listener destination="test.topic" subscription="topic_receiver1" ref="topicReceiver1"/> <jms:listener destination="test.topic" subscription="topic_receiver2" ref="topicReceiver2"/> --> </jms:listener-container> <!-- 消息消费者 end --> </beans>
QReceiver.java
package com.outsideasy.activemq.service; import javax.jms.JMSException; import javax.jms.Message; import javax.jms.MessageListener; import javax.jms.ObjectMessage; import org.springframework.stereotype.Component; import com.outsideasy.activemq.model.PurchaseOrderSender; @Component public class QReceiver implements MessageListener{ @Override public void onMessage(Message message) { try { /*System.out.println("QueueReceiver2接收到消息:"+((TextMessage)message).getText());*/ ObjectMessage objmsg=(ObjectMessage) message; PurchaseOrderSender purchaseOrderSender=(PurchaseOrderSender)objmsg.getObject(); //此消息对象和发送者的对象路径相同 System.out.println("QueueReceiver1接收到消息:"+purchaseOrderVo.getPur_order_id()); System.out.println("****:"+purchaseOrderVo.toString()); } catch (JMSException e) { e.printStackTrace(); } } }
3. 注意事项
3.1. 序列化与反序列化问题；
传输为对象类型为对象：
生产者和消费者对象的包路径必须一致，否则无法反序列化。
传输为Map类型：
value值必须为Integer 、Double 、String...自定义对象无法作为Value传输。否则提示如下错误：
Only objectified primitive objects, String, Map and List types are allowed
3.2.权限配置
3.2.1 服务访问权限及账号密码设置
在%ACTIVEMQ_HOME%\conf中activemq.xml中<xml 元素参见：ActiveMQ Xml Reference>
<broker ...> <plugins> <simpleAuthenticationPlugin> <users> <authenticationUser username="admin" password="topsun" groups="admins,publishers,consumers"/> <authenticationUser username="publisher" password="topsun" groups="publishers,consumers"/> <authenticationUser username="consumer" password="topsun" groups="consumers"/> <authenticationUser username="guest" password="topsun" groups="guests"/> </users> </simpleAuthenticationPlugin> <authorizationPlugin> <map> <authorizationMap> <authorizationEntries> <authorizationEntry queue=">" read="admins" write="admins" admin="admins" /> <authorizationEntry topic=">" read="admins" write="admins" admin="admins" /> <authorizationEntry queue="publishers.>" read="publishers" write="publishers" admin="admins" /> <authorizationEntry queue="consumers." read="consumers" write="consumers" admin="admins" /> <authorizationEntry queue="test" read="guests" write="guests" /> </authorizationEntries> </authorizationMap> </map> </authorizationPlugin> </plugins> </broker>
3.2.2 ActiveMQ 服务网页控制台(web console)账号密码设置
需要在%ACTIVEMQ_HOME%\bin中jetty-realm.properties中配置,如下：
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# Defines users that can access the web (console, demo, etc.)
# username: password [,rolename ...]
admin: admin, admin
user: user, user
3.3 clientId 标签值
每个客户端只能在此服务中，只能使用唯一标识值。重复使用会报错。
参考资料：
1. http://www.cnblogs.com/kszit/p/3596366.html
2. http://shmilyaw-hotmail-com.iteye.com/blog/1897635
3. http://www.cnblogs.com/hoojo/p/active_mq_jms_apache_activeMQ.html
