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Spring整合ActiveMQ实现简单的消息队列

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Spring整合ActiveMQ实现简单的消息队列

JMS简介

JMS(Java Message Service)，Java消息服务。主要用于在生产者和消费者之间进行消息传送，生产者负责生产消息，消费者负责接收处理消息。在实际的业务中，生产者生成消息，发送消息，消息会保存到ActiveMQ队列中，对应的消费者会接收消息，完成特定的业务逻辑。消息的传递模型有两种，一种是点对点，一个生产者对应一个消费者；另一种是发布订阅模式，一个生产者对应多个消费者，Java应用和ActiveMQ之间使用JMS传送消息。

Spring整合ActiveMQ

引入依赖

maven依赖如下

[html] view plain copy print ?<dependency>
<groupId>org.apache.activemq</groupId>
<artifactId>activemq-all</artifactId>
<version>5.14.5</version>
</dependency>
<dependency>
<groupId>javax.annotation</groupId>
<artifactId>jsr250-api</artifactId>
<version>1.0</version>
</dependency>
 <dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-messaging</artifactId>&
4000
nbsp;
<version>{spring.version}</version> </li><li class="alt"> <span style="white-space:pre"> </span></dependency> </li><li class=""> <span style="white-space:pre"> </span><dependency> </li><li class="alt"> <groupId>org.springframework</groupId> </li><li class=""> <artifactId>spring-jms</artifactId> </li><li class="alt"> <version>{spring.version}</version>
 </dependency>
<dependency>
<groupId>org.apache.xbean</groupId>
<artifactId>xbean-spring</artifactId>
<version>4.5</version>
</dependency>

<dependency>
<groupId>org.apache.activemq</groupId>
<artifactId>activemq-all</artifactId>
<version>5.14.5</version>
</dependency>
<dependency>
<groupId>javax.annotation</groupId>
<artifactId>jsr250-api</artifactId>
<version>1.0</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-messaging</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-jms</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.apache.xbean</groupId>
<artifactId>xbean-spring</artifactId>
<version>4.5</version>
</dependency>

Spring中配置ActiveMQ

完整配置文件为：

[html] view plain copy print ?<?xml version=“1.0” encoding=“UTF-8”?>
<beans xmlns=“http://www.springframework.org/schema/beans”
xmlns:context=“http://www.springframework.org/schema/context” xmlns:p=“http://www.springframework.org/schema/p”
xmlns:mvc=“http://www.springframework.org/schema/mvc” xmlns:tx=“http://www.springframework.org/schema/tx”
xmlns:aop=“http://www.springframework.org/schema/aop” xmlns:xsi=“http://www.w3.org/2001/XMLSchema-instance”
xmlns:jms=“http://www.springframework.org/schema/jms” xmlns:amq=“http://activemq.apache.org/schema/core”
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/mvc http://www.springframework.org/schema/mvc/spring-mvc-4.0.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-4.0.xsd http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-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-5.14.5.xsd”>
<!–activemq连接工厂 –>
<amq:connectionFactory id=“activemqConnectionFactory” brokerURL=“tcp://127.0.0.1:61616” userName=“admin” password=“admin”></amq:connectionFactory>

<!–spring连接工厂，管理activemq连接工厂 –>
<bean id=“connectionFactory” class=“org.springframework.jms.connection.CachingConnectionFactory”>
<!–管理对象，对应activemq连接工厂 –>
<property name=“targetConnectionF
19954
actory” ref=“activemqConnectionFactory”></property>
<!–session缓存数量 –>
<property name=“sessionCacheSize” value=“100”/>
</bean>

<!–定义消息队列 –>
<bean id=“tttQueueDestination” class=“org.apache.activemq.command.ActiveMQQueue”>
<!–消息队列名称 –>
<constructor-arg>
<value>ttt.queue</value>
</constructor-arg>
</bean>

<bean id=“tttTopicDestination” class=“org.apache.activemq.command.ActiveMQTopic”>
<!–订阅主题名称 –>
<constructor-arg>
<value>ttt.topic</value>
</constructor-arg>
</bean>

<!–消息生产者 –>
<!–队列类型JmsTemplate –>
<bean id=“jmsQueueTemplate” class=“org.springframework.jms.core.JmsTemplate”>
<property name=“connectionFactory” ref=“connectionFactory”/>
<property name=“defaultDestination” ref=“tttQueueDestination”/>
<property name=“receiveTimeout” value=“10000”/>
<!–非pub/sub（发布/订阅）模式，即队列模式 –>
<property name=“pubSubDomain” value=“false”/>
</bean>

<!–Topic类型JmsTemplate –>
<bean id=“jmsTopicTemplate” class=“org.springframework.jms.core.JmsTemplate”>
<property name=“connectionFactory” ref=“connectionFactory”/>
<property name=“defaultDestination” ref=“tttTopicDestination”/>
<property name=“receiveTimeout” value=“10000”/>
<!–pub/sub（发布/订阅）模式 –>
<property name=“pubSubDomain” value=“true”/>
</bean>

<!–消息消费者–>

<jms:listener-container destination-type=“queue” container-type=“default” connection-factory=“connectionFactory” acknowledge=“auto”>
<!–队列监听器 –>
<jms:listener destination=“ttt.queue” ref=“queueListener”/>
</jms:listener-container>

<jms:listener-container destination-type=“topic” container-type=“default” connection-factory=“connectionFactory” acknowledge=“auto”>
<!–Topic监听器 –>
<jms:listener destination=“ttt.topic” ref=“topicListener”/>
</jms:listener-container>
</beans>

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:context="http://www.springframework.org/schema/context" xmlns:p="http://www.springframework.org/schema/p"
xmlns:mvc="http://www.springframework.org/schema/mvc" xmlns:tx="http://www.springframework.org/schema/tx"
xmlns:aop="http://www.springframework.org/schema/aop" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:jms="http://www.springframework.org/schema/jms" xmlns:amq="http://activemq.apache.org/schema/core"
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/mvc http://www.springframework.org/schema/mvc/spring-mvc-4.0.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-4.0.xsd http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-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-5.14.5.xsd"> 
<!--activemq连接工厂 -->
<amq:connectionFactory id="activemqConnectionFactory" brokerURL="tcp://127.0.0.1:61616" userName="admin" password="admin"></amq:connectionFactory>

<!--spring连接工厂，管理activemq连接工厂 -->
<bean id="connectionFactory" class="org.springframework.jms.connection.CachingConnectionFactory">
<!--管理对象，对应activemq连接工厂  -->
<property name="targetConnectionFactory" ref="activemqConnectionFactory"></property>
<!--session缓存数量  -->
<property name="sessionCacheSize" value="100"/>
</bean>

<!--定义消息队列  -->
<bean id="tttQueueDestination" class="org.apache.activemq.command.ActiveMQQueue">
<!--消息队列名称  -->
<constructor-arg>
<value>ttt.queue</value>
</constructor-arg>
</bean>

<bean id="tttTopicDestination" class="org.apache.activemq.command.ActiveMQTopic">
<!--订阅主题名称  -->
<constructor-arg>
<value>ttt.topic</value>
</constructor-arg>
</bean>

<!--消息生产者  -->
<!--队列类型JmsTemplate  -->
<bean id="jmsQueueTemplate" class="org.springframework.jms.core.JmsTemplate">
<property name="connectionFactory" ref="connectionFactory"/>
<property name="defaultDestination" ref="tttQueueDestination"/>
<property name="receiveTimeout" value="10000"/>
<!--非pub/sub（发布/订阅）模式，即队列模式 -->
<property name="pubSubDomain" value="false"/>
</bean>

<!--Topic类型JmsTemplate  -->
<bean id="jmsTopicTemplate" class="org.springframework.jms.core.JmsTemplate">
<property name="connectionFactory" ref="connectionFactory"/>
<property name="defaultDestination" ref="tttTopicDestination"/>
<property name="receiveTimeout" value="10000"/>
<!--pub/sub（发布/订阅）模式 -->
<property name="pubSubDomain" value="true"/>
</bean>

<!--消息消费者-->

<jms:listener-container destination-type="queue" container-type="default" connection-factory="connectionFactory" acknowledge="auto">
<!--队列监听器  -->
<jms:listener destination="ttt.queue" ref="queueListener"/>
</jms:listener-container>

<jms:listener-container destination-type="topic" container-type="default" connection-factory="connectionFactory" acknowledge="auto">
<!--Topic监听器  -->
<jms:listener destination="ttt.topic" ref="topicListener"/>
</jms:listener-container>
</beans>

发送消息

发送Queue消息

收到发送Queue的请求，创建队列消息发送对象，设置消息业务处理逻辑bean、数据，发送消息

[java] view plain copy print ?@Override
public void sendQueueMessage() {
Random r = new Random();
Map<String, Object> map = new HashMap<String, Object>();
map.put(”message” + r.nextInt(100), r.nextInt(10000));
MessageSender sender = new MessageSender(“asyncProcessor.message”);
sender.sendMessage(map);
}

@Override
public void sendQueueMessage() {
Random r = new Random();
Map<String, Object> map = new HashMap<String, Object>();
map.put("message" + r.nextInt(100), r.nextInt(10000));
MessageSender sender = new MessageSender("asyncProcessor.message");
sender.sendMessage(map);
}

队列消息发送对象

[java] view plain copy print ?public class MessageSender implements Serializable { /** * */ private static final long serialVersionUID = -7611739730866180422L; private String bean; public MessageSender(String bean) { this.bean = bean; } public String getBean() { return bean; } public void sendMessage(Destination destination, Map<String, Object> map) { MessageHelper.sendMessage(destination, map, getBean()); } public void sendMessage(Map<String, Object> map) { MessageHelper.sendMessage(map, getBean()); } }

public class MessageSender implements Serializable {

/**
*
*/
private static final long serialVersionUID = -7611739730866180422L;

private String bean;

public MessageSender(String bean) {
this.bean = bean;
}

public String getBean() {
return bean;
}

public void sendMessage(Destination destination, Map<String, Object> map) {
MessageHelper.sendMessage(destination, map, getBean());
}

public void sendMessage(Map<String, Object> map) {
MessageHelper.sendMessage(map, getBean());
}

}

调用jmsTemplate发送队列消息

[java] view plain copy print ?@Component
public class MessageHelper implements Serializable, InitializingBean {

/**
*
*/
private static final long serialVersionUID = 522520461829363235L;

@Autowired
private JmsTemplate jmsQueueTemplate;

private static JmsTemplate jmsTemplateProxy;

public JmsTemplate getJmsTemplate() {
return jmsQueueTemplate;
}

public void setJmsTemplate(JmsTemplate jmsTemplate) {
this.jmsQueueTemplate = jmsTemplate;
}

public static void sendMessage(Destination destination, final Map<String, Object> map, String processor) {
jmsTemplateProxy.send(destination, new MessageCreator() {

@Override
public Message createMessage(Session session) throws JMSException {
MapMessage message = session.createMapMessage();
message.setString(”processor”, processor);
message.setObject(”data”, map);
message.setJMSDestination(destination);
return message;
}
});
}

public static void sendMessage(Map<String, Object> map, String processor) {
jmsTemplateProxy.send(new MessageCreator() {

@Override
public Message createMessage(Session session) throws JMSException {
MapMessage message = session.createMapMessage();
message.setObject(”processor”, processor);
message.setObject(”data”, map);
return message;
}
});
}

@Override
public void afterPropertiesSet() throws Exception {

jmsTemplateProxy = this.jmsQueueTemplate;
}

public static JmsTemplate getJmsTemplateProxy() {
return jmsTemplateProxy;
}

public static void setJmsTemplateProxy(JmsTemplate jmsTemplateProxy) {
MessageHelper.jmsTemplateProxy = jmsTemplateProxy;
}
}

@Component
public class MessageHelper implements Serializable, InitializingBean {

/**
*
*/
private static final long serialVersionUID = 522520461829363235L;

@Autowired
private JmsTemplate jmsQueueTemplate;

private static JmsTemplate jmsTemplateProxy;

public JmsTemplate getJmsTemplate() {
return jmsQueueTemplate;
}

public void setJmsTemplate(JmsTemplate jmsTemplate) {
this.jmsQueueTemplate = jmsTemplate;
}

public static void sendMessage(Destination destination, final Map<String, Object> map, String processor) {
jmsTemplateProxy.send(destination, new MessageCreator() {

@Override
public Message createMessage(Session session) throws JMSException {
MapMessage message = session.createMapMessage();
message.setString("processor", processor);
message.setObject("data", map);
message.setJMSDestination(destination);
return message;
}
});
}

public static void sendMessage(Map<String, Object> map, String processor) {
jmsTemplateProxy.send(new MessageCreator() {

@Override
public Message createMessage(Session session) throws JMSException {
MapMessage message = session.createMapMessage();
message.setObject("processor", processor);
message.setObject("data", map);
return message;
}
});
}

@Override
public void afterPropertiesSet() throws Exception {

jmsTemplateProxy = this.jmsQueueTemplate;
}

public static JmsTemplate getJmsTemplateProxy() {
return jmsTemplateProxy;
}

public static void setJmsTemplateProxy(JmsTemplate jmsTemplateProxy) {
MessageHelper.jmsTemplateProxy = jmsTemplateProxy;
}
}

发送Topic消息

收到发送Topic的请求，创建Topic消息发送对象，设置消息业务处理逻辑bean、数据，发送消息

[java] view plain copy print ?@Override
public void sendTopicMessage() {
Random r = new Random();
Map<String, Object> map = new HashMap<String, Object>();
map.put(”topic” + r.nextInt(100), r.nextInt(10000));
TopicSender sender = new TopicSender(“asyncProcessor.topic”);
sender.sendTopic(map);
}

@Override
public void sendTopicMessage() {
Random r = new Random();
Map<String, Object> map = new HashMap<String, Object>();
map.put("topic" + r.nextInt(100), r.nextInt(10000));
TopicSender sender = new TopicSender("asyncProcessor.topic");
sender.sendTopic(map);
}

Topic消息发送对象类

[java] view plain copy print ?public class TopicSender implements Serializable { /** * */ private static final long serialVersionUID = -2422605328103788546L; private String processor; public TopicSender(String processor) { this.processor = processor; } public String getProcessor() { return processor; } public void setProcessor(String processor) { this.processor = processor; } public void sendTopic(Destination destination, Map<String, Object> map) { TopicHelper.send(destination, map, getProcessor()); } public void sendTopic(Map<String, Object> map) { TopicHelper.send(map, getProcessor()); } }

public class TopicSender implements Serializable {

/**
*
*/
private static final long serialVersionUID = -2422605328103788546L;

private String processor;

public TopicSender(String processor) {
this.processor = processor;
}

public String getProcessor() {
return processor;
}

public void setProcessor(String processor) {
this.processor = processor;
}

public void sendTopic(Destination destination, Map<String, Object> map) {
TopicHelper.send(destination, map, getProcessor());
}

public void sendTopic(Map<String, Object> map) {
TopicHelper.send(map, getProcessor());
}
}

调用jmsTemplate发送Topic消息

[java] view plain copy print ?@Component
public class TopicHelper implements Serializable, InitializingBean {

/**
*
*/
private static final long serialVersionUID = 2255365346654153127L;

@Autowired
private JmsTemplate jmsTopicTemplate;

private static JmsTemplate jmsTopicTemplateProxy;

public static JmsTemplate getJmsTemplateProxy() {
return jmsTopicTemplateProxy;
}

public static void send(Destination destination, final Map<String, Object> map, final String processor) {
jmsTopicTemplateProxy.send(destination, new MessageCreator() {

@Override
public Message createMessage(Session session) throws JMSException {
MapMessage message = session.createMapMessage();
message.setString(”processor”, processor);
message.setObject(”data”, map);
return message;
}
});
}

public static void send(final Map<String, Object> map, final String processor) {
jmsTopicTemplateProxy.send(new MessageCreator() {

@Override
public Message createMessage(Session session) throws JMSException {
MapMessage message = session.createMapMessage();
message.setString(”processor”, processor);
message.setObject(”data”, map);
return message;
}
});
}

public JmsTemplate getJmsTopicTemplate() {
return jmsTopicTemplate;
}

public void setJmsTopicTemplate(JmsTemplate jmsTopicTemplate) {
this.jmsTopicTemplate = jmsTopicTemplate;
}

@Override
public void afterPropertiesSet() throws Exception {
jmsTopicTemplateProxy = getJmsTopicTemplate();
}
}

@Component
public class TopicHelper implements Serializable, InitializingBean {

/**
*
*/
private static final long serialVersionUID = 2255365346654153127L;

@Autowired
private JmsTemplate jmsTopicTemplate;

private static JmsTemplate jmsTopicTemplateProxy;

public static JmsTemplate getJmsTemplateProxy() {
return jmsTopicTemplateProxy;
}

public static void send(Destination destination, final Map<String, Object> map, final String processor) {
jmsTopicTemplateProxy.send(destination, new MessageCreator() {

@Override
public Message createMessage(Session session) throws JMSException {
MapMessage message = session.createMapMessage();
message.setString("processor", processor);
message.setObject("data", map);
return message;
}
});
}

public static void send(final Map<String, Object> map, final String processor) {
jmsTopicTemplateProxy.send(new MessageCreator() {

@Override
public Message createMessage(Session session) throws JMSException {
MapMessage message = session.createMapMessage();
message.setString("processor", processor);
message.setObject("data", map);
return message;
}
});
}

public JmsTemplate getJmsTopicTemplate() {
return jmsTopicTemplate;
}

public void setJmsTopicTemplate(JmsTemplate jmsTopicTemplate) {
this.jmsTopicTemplate = jmsTopicTemplate;
}

@Override
public void afterPropertiesSet() throws Exception {
jmsTopicTemplateProxy = getJmsTopicTemplate();
}
}

监听消息

监听队列消息

配置监听

[html] view plain copy print ?<jms:listener-container destination-type=“queue” container-type=“default” connection-factory=“connectionFactory” acknowledge=“auto”>
<!–队列监听器 –>
<jms:listener destination=“ttt.queue” ref=“queueListener”/>
</jms:listener-container>

<jms:listener-container destination-type="queue" container-type="default" connection-factory="connectionFactory" acknowledge="auto">
<!--队列监听器  -->
<jms:listener destination="ttt.queue" ref="queueListener"/>
</jms:listener-container>

监听实现

[java] view plain copy print ?@Component
public class QueueListener implements MessageListener {

private static final Logger log = LoggerFactory.getLogger(MessageListener.class);

@SuppressWarnings(“unchecked”)
@Override
public void onMessage(Message message) {
MapMessage msg = (MapMessage) message;
try {
String processorName = msg.getString(”processor”);
Map<String, Object> param = (Map<String, Object>) msg.getObject(”data”);
IAsyncProcessor processor = (IAsyncProcessor) Context.getApplicationContext().getBean(processorName);
processor.process(param);
} catch (JMSException e) {

log.error(”QueueListener on message error|”, e);
}
}

}

@Component
public class QueueListener implements MessageListener {

private static final Logger log = LoggerFactory.getLogger(MessageListener.class);

@SuppressWarnings("unchecked")
@Override
public void onMessage(Message message) {
MapMessage msg = (MapMessage) message;
try {
String processorName = msg.getString("processor");
Map<String, Object> param = (Map<String, Object>) msg.getObject("data");
IAsyncProcessor processor = (IAsyncProcessor) Context.getApplicationContext().getBean(processorName);
processor.process(param);
} catch (JMSException e) {

log.error("QueueListener on message error|", e);
}
}

}

监听Topic消息

配置监听

[html] view plain copy print ?<jms:listener-container destination-type=“topic” container-type=“default” connection-factory=“connectionFactory” acknowledge=“auto”>
<!–Topic监听器 –>
<jms:listener destination=“ttt.topic” ref=“topicListener”/>
</jms:listener-container>

<jms:listener-container destination-type="topic" container-type="default" connection-factory="connectionFactory" acknowledge="auto">
<!--Topic监听器  -->
<jms:listener destination="ttt.topic" ref="topicListener"/>
</jms:listener-container>

监听实现

[java] view plain copy print ?@Component
public class TopicListener implements MessageListener {

private static final Logger log = LoggerFactory.getLogger(MessageListener.class);

@SuppressWarnings(“unchecked”)
@Override
public void onMessage(Message message) {
MapMessage msg = (MapMessage) message;
try {
String processorName = msg.getString(”processor”);
Map<String, Object> param = (Map<String, Object>) msg.getObject(”data”);
IAsyncProcessor processor = (IAsyncProcessor) Context.getApplicationContext().getBean(processorName);
processor.process(param);
} catch (JMSException e) {

log.error(”TopicListener on message error|”, e);
}
}

}

@Component
public class TopicListener implements MessageListener {

private static final Logger log = LoggerFactory.getLogger(MessageListener.class);

@SuppressWarnings("unchecked")
@Override
public void onMessage(Message message) {
MapMessage msg = (MapMessage) message;
try {
String processorName = msg.getString("processor");
Map<String, Object> param = (Map<String, Object>) msg.getObject("data");
IAsyncProcessor processor = (IAsyncProcessor) Context.getApplicationContext().getBean(processorName);
processor.process(param);
} catch (JMSException e) {

log.error("TopicListener on message error|", e);
}
}

}

业务处理

业务逻辑处理bean实现

接口

[java] view plain copy print ?public interface IAsyncProcessor { /** * 逻辑处理 * * @param map */ public void process(Map<String, Object> map); }

public interface IAsyncProcessor {

/**
* 逻辑处理
*
* @param map
*/
public void process(Map<String, Object> map);
}

实现

[java] view plain copy print ?@Named(“asyncProcessor.message”)
public class MessageAsyncProcessor implements IAsyncProcessor {

@Override
public void process(Map<String, Object> map) {
for (Entry<String, Object> e : map.entrySet()) {
System.out.println(”message:” + e.getKey() + “,” + e.getValue());
}

}

}

@Named("asyncProcessor.message")
public class MessageAsyncProcessor implements IAsyncProcessor {

@Override
public void process(Map<String, Object> map) {
for (Entry<String, Object> e : map.entrySet()) {
System.out.println("message:" + e.getKey() + "," + e.getValue());
}

}

}

[java] view plain copy print ?@Named(“asyncProcessor.topic”)
public class TopicAsyncProcessor implements IAsyncProcessor {

@Override
public void process(Map<String, Object> map) {
for (Entry<String, Object> e : map.entrySet()) {
System.out.println(”topic:” + e.getKey() + “,” + e.getValue());
}
}

}

@Named("asyncProcessor.topic")
public class TopicAsyncProcessor implements IAsyncProcessor {

@Override
public void process(Map<String, Object> map) {
for (Entry<String, Object> e : map.entrySet()) {
System.out.println("topic:" + e.getKey() + "," + e.getValue());
}
}

}

获取业务逻辑处理bean的context代码

[java] view plain copy print ?@Component public class Context implements ApplicationContextAware { private static ApplicationContext context; @Override public void setApplicationContext(ApplicationContext applicationContext) throws BeansException { context = applicationContext; } public static ApplicationContext getApplicationContext() { return context; } }

@Component
public class Context implements ApplicationContextAware {

private static ApplicationContext context;

@Override
public void setApplicationContext(ApplicationContext applicationContext) throws BeansException {
context = applicationContext;
}

public static ApplicationContext getApplicationContext() {
return context;
}

}

碰到问题

引入Activemq-all新版本jar包后，activemq中的Spring部分和Spring重复，会导致spring启动报错，只需要包activemq中的spring部分删除即可以正常运行。

（完）。

转自：http://blog.csdn.net/weihao_/article/details/74454736

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