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一、背景介绍

<dependency> 标签中列出的 spring-jms 是 Spring Framework 提供的一个模块，用于简化 Java Message Service (JMS) 的开发。它本身并不是 ActiveMQ 的 JMS 推送，但可以与 ActiveMQ 一起使用，以实现 JMS 消息的发送和接收。

解释

1. Spring JMS:
   • spring-jms 提供了一些便利的功能和抽象，使得使用 JMS 更加简单和直观。它支持消息的发送、接收、事务管理等功能，并提供了模板类（如 JmsTemplate）来简化消息的发送和接收过程。
2. ActiveMQ:
   • ActiveMQ 是一个流行的开源消息代理，支持 JMS 协议。它可以作为消息中间件，允许不同的应用程序通过消息进行通信。

二、注意点说明

三、代码

pom.xml

<dependency><groupId>org.springframework</groupId><artifactId>spring-jms</artifactId><version>4.2.3.RELEASE</version>
</dependency>

mq.properties

# jms
activemq.brokerURL=tcp://20.150.12.141:18750
activemq.sessionCacheSize=20
activemq.ip=20.150.12.141
activemq.port=18750
activemq.protocol=tcp

ActiveMqConfig

package com.hero.lte.ems.jms.config;import com.hero.lte.ems.configuration.DynamicConfig;
import com.hero.lte.ems.configuration.DynamicConfigLoader;
import com.hero.lte.ems.jms.EMSJmsTemplate;
import com.hero.lte.ems.jms.support.enums.ActivemqProtocolEnum;
import com.hero.lte.ems.jms.support.model.ActiveMqInfo;
import org.apache.activemq.ActiveMQConnectionFactory;
import org.apache.activemq.jms.pool.PooledConnectionFactory;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.jms.config.DefaultJmsListenerContainerFactory;
import org.springframework.jms.config.JmsListenerContainerFactory;
import org.springframework.jms.connection.CachingConnectionFactory;import javax.jms.ConnectionFactory;@Configuration
public class ActiveMqConfig {private String brokerURL;private Integer sessionCacheSize;@Bean(name = "activemqInfo")public ActiveMqInfo activeMqInfo(){ActiveMqInfo activeMqInfo = new ActiveMqInfo();DynamicConfig config = DynamicConfigLoader.load("mq.properties");activeMqInfo.setIp(config.getString("activemq.ip"));activeMqInfo.setPort(config.getInt("activemq.port"));activeMqInfo.setProtocolEnum(ActivemqProtocolEnum.formatEnum(config.getString("activemq.protocol")));return activeMqInfo;}@Beanpublic ActiveMQConnectionFactory connectionFactory() {DynamicConfig config = DynamicConfigLoader.load("mq.properties");brokerURL = config.getString("activemq.protocol")+"://"+config.getString("activemq.ip")+":"+config.getString("activemq.port");sessionCacheSize = config.getInt("activemq.sessionCacheSize");ActiveMQConnectionFactory activeMQConnectionFactory= new ActiveMQConnectionFactory(brokerURL);activeMQConnectionFactory.setUseAsyncSend(true);activeMQConnectionFactory.setTrustAllPackages(true);return activeMQConnectionFactory;}@Beanpublic PooledConnectionFactory pooledConnectionFactory(ActiveMQConnectionFactory activeMQconnectionFactory){DynamicConfig config = DynamicConfigLoader.load("mq.properties");brokerURL = config.getString("activemq.protocol")+"://"+config.getString("activemq.ip")+":"+config.getString("activemq.port");sessionCacheSize = config.getInt("activemq.sessionCacheSize");PooledConnectionFactory pooledConnectionFactory= new PooledConnectionFactory();pooledConnectionFactory.setConnectionFactory(activeMQconnectionFactory);pooledConnectionFactory.setMaxConnections(100);pooledConnectionFactory.setExpiryTimeout(20000);return pooledConnectionFactory;}@Beanpublic CachingConnectionFactory cachingConnectionFactory(ActiveMQConnectionFactory activeMQconnectionFactory) {CachingConnectionFactory connectionFactory = new CachingConnectionFactory();connectionFactory.setSessionCacheSize(sessionCacheSize);connectionFactory.setTargetConnectionFactory(activeMQconnectionFactory);return connectionFactory;}@Beanpublic EMSJmsTemplate jmsTemplate(CachingConnectionFactory connectionFactory) {EMSJmsTemplate jmsTemplate = new EMSJmsTemplate();jmsTemplate.setPubSubDomain(true);jmsTemplate.setReceiveTimeout(1000);jmsTemplate.setExplicitQosEnabled(true);jmsTemplate.setConnectionFactory(connectionFactory);return jmsTemplate;}@Beanpublic JmsListenerContainerFactory<?> jmsListenerContainerTopic(CachingConnectionFactory activeMQConnectionFactory) {DefaultJmsListenerContainerFactory bean = new DefaultJmsListenerContainerFactory();bean.setPubSubDomain(true);bean.setConnectionFactory(activeMQConnectionFactory);return bean;}@Beanpublic JmsListenerContainerFactory<?> jmsListenerContainerQueue(CachingConnectionFactory activeMQConnectionFactory) {DefaultJmsListenerContainerFactory bean = new DefaultJmsListenerContainerFactory();bean.setConnectionFactory(activeMQConnectionFactory);return bean;}}

JmsSender

package com.hero.lte.ems.cdc.jms;import com.alibaba.fastjson.JSON;
import com.hero.lte.ems.cdc.constant.CdcConstant;
import com.hero.lte.ems.cdc.producer.ActiveMQMessageProducer;
import org.apache.activemq.command.ActiveMQQueue;
import org.apache.activemq.command.ActiveMQTopic;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.jms.JmsException;
import org.springframework.jms.core.JmsTemplate;
import org.springframework.jms.core.MessageCreator;
import org.springframework.stereotype.Service;import javax.annotation.Resource;
import javax.jms.*;
import java.util.UUID;/*** JMS消息发送者*/
@Service
public class JmsSender {private final String key = UUID.randomUUID().toString();@ResourceActiveMQMessageProducer activeMQMessageProducer;private static Logger log = LoggerFactory.getLogger(JmsSender.class);@Resourceprivate JmsTemplate jmsTemplate;public void send(String message) {activeMQMessageProducer.send(CdcConstant.JMS_CDC, key, message);}/*** 推送消息** @param destName 消息主题* @param obj      消息内容 （json格式发送出去）*/public void send(final String destName, final Object obj, final Boolean isPubSubDomain) {
//        EMSJmsTemplate jmsTemplate = SpringContextHolder.getBean("jmsTemplate");try {Destination destination = null;if (isPubSubDomain) {destination = new ActiveMQTopic(destName);} else {destination = new ActiveMQQueue(destName);}jmsTemplate.send(destination, new MessageCreator() {@Overridepublic Message createMessage(Session session) throws JMSException {TextMessage msg = session.createTextMessage();if (obj instanceof String) {msg.setText(obj.toString());} else {msg.setText(JSON.toJSONString(obj));}log.debug("Send {}-{}", destName, obj);return msg;}});} catch (JmsException e) {log.error(" jms push info to client error : ", e);}}/*** 推送消息** @param destName 消息主题 topic* @param obj      消息内容 （json格式发送出去）*/public void send(final String destName, final Object obj) {send(destName, obj, true);}/*** 推送消息并监听响应(订阅模式)** @param topic 消息主题* @param obj   消息内容 （json格式发送出去）* @return*/public String sendAndReceive(final String topic, final Object obj) {
//        EMSJmsTemplate jmsTemplate = (EMSJmsTemplate) SpringContextHolder.getBean("jmsTemplate");try {Message message = jmsTemplate.sendAndReceive(topic, new MessageCreator() {@Overridepublic Message createMessage(Session session) throws JMSException {TextMessage msg = session.createTextMessage();// 设置消息内容msg.setText(JSON.toJSONString(obj));log.debug("sendAndReceive {}-{}", topic, obj);return msg;}});if (message != null) {return ((TextMessage) message).getText();}} catch (JmsException | JMSException e) {log.error(" jms push info to client error : ", e);}return null;}}

ActiveMqInfo

package com.hero.lte.ems.jms.support.model;import com.hero.lte.ems.jms.support.enums.ActivemqProtocolEnum;import java.io.Serializable;public class ActiveMqInfo implements Serializable
{/*** */private static final long serialVersionUID = -2965965930227658765L;private String ip;private int port;private ActivemqProtocolEnum protocolEnum;public String getIp(){return ip;}public void setIp(String ip){this.ip = ip;}public int getPort(){return port;}public void setPort(int port){this.port = port;}public ActivemqProtocolEnum getProtocolEnum(){return protocolEnum;}public void setProtocolEnum(ActivemqProtocolEnum protocolEnum){this.protocolEnum = protocolEnum;}@Overridepublic String toString(){StringBuilder sb = new StringBuilder();sb.append("ActiveMqInfo:[");sb.append("ip:").append(ip).append(",");sb.append("port").append(port).append(",");sb.append("protocolEnum").append(protocolEnum);sb.append("]");return sb.toString();}
}

ActivemqProtocolEnum

package com.hero.lte.ems.jms.support.enums;import java.io.Serializable;public enum ActivemqProtocolEnum implements Serializable {/*** Tcp*/TCP("tcp");private String protocol;public String getProtocol(){return protocol;}private ActivemqProtocolEnum(String protocol){this.protocol = protocol;}@Overridepublic String toString(){return protocol;}public static ActivemqProtocolEnum formatEnum(String protocol){for (ActivemqProtocolEnum protocolItem : ActivemqProtocolEnum.values()){if (protocolItem.protocol.equalsIgnoreCase(protocol)){return protocolItem;}}return null;}}

生产者

import com.hero.lte.ems.jms.JmsSender;JmsSender.send(JmsConstant.OBSERVE_REPORT_RECEIVE_JMS, json);

消费者

@JmsListener(destination = JmsConstant.OBSERVE_REPORT_RECEIVE_JMS, containerFactory = "jmsListenerContainerTopic")public void receive(String msg) {logger.debug("receive message={}", msg);......}