1.依赖包
<!-- pom文件内定义配置常量 --> <properties> <springversion>5.0.6.RELEASE</springversion> </properties> <!-- 加入jms依赖 --> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-jms</artifactId> <version>${springversion}</version> </dependency>
application.yml内定义mq连接信息
# ========= MQ相关配置 ============= # 需要重连或负载请在地址前前加上:failover://
#负载配置:failover:(tcp://localhost:61616,tcp://remotehost:61616)
#注意,如果加上failover(故障转移),连接失败或发送消息失败默认会触发重连机制,而如果没有配置重连次数,将会无限发起重连,并且不会抛出异常,此时如果涉及业务执行就坑了,相当于卡死在这里
链接后加入配置可以关闭重连或自定义重连次数,但依然不会抛出异常,如果对负载没有特殊要求,建议不加此前缀。具体配置可以参考:http://activemq.apache.org/failover-transport-reference.html activemq.broker-url: tcp://127.0.0.1:61616?jms.prefetchPolicy.queuePrefetch=1 activemq.username: admin activemq.password: admin #MQ消费者连接池连接数,视情况而定 activemq.pool.max-connections : 30
applicationContext_local.xml 加入mq配置
<!-- 真正可以产生Connection的ConnectionFactory,由对应的 JMS服务厂商提供 --> <bean id="pooledConnectionFactory" class="org.apache.activemq.pool.PooledConnectionFactory"> <property name="connectionFactory"> <bean class="org.apache.activemq.ActiveMQConnectionFactory"> <property name="brokerURL" value="${activemq.broker-url}"/> <property name="userName" value="${activemq.username}"></property> <property name="password" value="${activemq.password}"></property> </bean> </property> <property name="maxConnections" value="${activemq.pool.max-connections}"/> </bean> <!-- Spring提供的JMS工具类,它可以进行消息发送、接收等 --> <bean id="jmsTemplate" class="org.springframework.jms.core.JmsMessagingTemplate"> <!-- 这个connectionFactory对应的是我们定义的Spring提供的那个ConnectionFactory对象 --> <property name="connectionFactory" ref="pooledConnectionFactory"/> </bean>
消息发送类
import com.nascent.ecrpsaas.core.service.mq.base.BaseMQProducer; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.jms.core.JmsMessagingTemplate; import org.springframework.stereotype.Component; import javax.jms.Destination; /** * ActiveMQ消息实现 * */ @Component public class ActiveMessageProducer extends BaseMQProducer { @Autowired private JmsMessagingTemplate jmsTemplate; // 发送消息,destination是发送到的队列,message是待发送的消息 @Override public void sendMessage(Destination destination, final String message){ jmsTemplate.convertAndSend(destination, message); } // 发送消息,destination是发送到的队列,message是待发送的消息 @Override public void sendMessage(String destination, final String message){ jmsTemplate.convertAndSend(destination, message); } }
BaseMQProducer基类
import javax.jms.Destination; /** * MQ基类 */ public abstract class BaseMQProducer { /** * 发送消息 * @param destination MQ队列 * @param message 消息内容 */ protected abstract void sendMessage(Destination destination, final String message); /** * 发送消息 * @param destination MQ队列名称 * @param message 消息内容 */ public abstract void sendMessage(String destination, final String message); }
测试类(仅为展示)
import com.alibaba.fastjson.JSONObject; import com.nascent.ecrpsaas.core.service.mq.base.BaseMQProducer; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.stereotype.Component; @Component public class Test { @Autowired private static BaseMQProducer baseMQProducer; public static void main(String[] args) { JSONObject message = new JSONObject(); message.put("say", "hello"); baseMQProducer.sendMessage("FistQueue", message.toString()); } }