本篇内容介绍了“activemq死信队列怎么配置”的有关知识，在实际案例的操作过程中，不少人都会遇到这样的困境，接下来就让小编带领大家学习一下如何处理这些情况吧！希望大家仔细阅读，能够学有所成！
监听新思路
1.不必去破坏生产者消费者的关系，去创建死信队列的对应消费者，如果不同队列去创建对应的死信队列监听，没什么意义，复用刚开始的思路进行更改。mq配置更改指定监听死信队列，死信队列的名称是可以配置指定的
@Bean public ActiveMQConnectionFactory connectionFactory() throws JMSException { ActiveMQConnectionFactory factory = new ActiveMQConnectionFactory(brokerurl); factory.setTrustAllPackages(true);//信任所有包下的序列化对象，解决无法发送对象消息 javax.jms.Connection connection = factory.createConnection(); connection.start(); Session session = connection.createSession(false, Session.AUTO_ACKNOWLEDGE); Queue queue = session.createQueue("ActiveMQ.DLQ"); MessageConsumer messageConsumer = session.createConsumer(queue); messageConsumer.setMessageListener(new QueueListener()); factory.setUserName(userName); factory.setPassword(password); return factory; }
新建监听类
/** * @author zhaokkstart * @create 2020-09-11 11:18 */public class QueueListener implements MessageListener { @Override public void onMessage(Message message) { System.out.println("****消费者的消息："+message); }}
看下能从message获取到什么东西
public interface Message {static final int DEFAULT_DELIVERY_MODE = DeliveryMode.PERSISTENT;static final int DEFAULT_PRIORITY = 4;static final long DEFAULT_TIME_TO_LIVE = 0;String getJMSMessageID() throws JMSException;void setJMSMessageID(String id) throws JMSException;long getJMSTimestamp() throws JMSException;void setJMSTimestamp(long timestamp) throws JMSException;byte[] getJMSCorrelationIDAsBytes() throws JMSException;void setJMSCorrelationIDAsBytes(byte[] correlationID) throws JMSException;void setJMSCorrelationID(String correlationID) throws JMSException;String getJMSCorrelationID() throws JMSException;Destination getJMSReplyTo() throws JMSException;void setJMSReplyTo(Destination replyTo) throws JMSException;Destination getJMSDestination() throws JMSException;void setJMSDestination(Destination destination) throws JMSException;int getJMSDeliveryMode() throws JMSException;void setJMSDeliveryMode(int deliveryMode) throws JMSException;boolean getJMSRedelivered() throws JMSException;void setJMSRedelivered(boolean redelivered) throws JMSException;String getJMSType() throws JMSException;void setJMSType(String type) throws JMSException;long getJMSExpiration() throws JMSException;void setJMSExpiration(long expiration) throws JMSException;int getJMSPriority() throws JMSException;void setJMSPriority(int priority) throws JMSException;void clearProperties() throws JMSException;boolean propertyExists(String name) throws JMSException;boolean getBooleanProperty(String name) throws JMSException;byte getByteProperty(String name) throws JMSException;short getShortProperty(String name) throws JMSException;int getIntProperty(String name) throws JMSException;long getLongProperty(String name) throws JMSException;float getFloatProperty(String name) throws JMSException;double getDoubleProperty(String name) throws JMSException;String getStringProperty(String name) throws JMSException;Object getObjectProperty(String name) throws JMSException;Enumeration getPropertyNames() throws JMSException;void setBooleanProperty(String name, boolean value) throws JMSException;void setByteProperty(String name, byte value) throws JMSException;void setShortProperty(String name, short value) throws JMSException;void setIntProperty(String name, int value) throws JMSException;void setLongProperty(String name, long value) throws JMSException;void setFloatProperty(String name, float value) throws JMSException;void setDoubleProperty(String name, double value) throws JMSException;void setStringProperty(String name, String value) throws JMSException;void setObjectProperty(String name, Object value) throws JMSException;void acknowledge() throws JMSException;void clearBody() throws JMSException;}
还是对象里的那点东西，到有个新思路
commandId = 5, responseRequired = true, messageId = ID: kk - 59648 - 1599635155556 - 1: 239: 1: 1: 1, originalDestination = null, originalTransactionId = null, producerId = ID: kk - 59648 - 1599635155556 - 1: 239: 1: 1, destination = queue: //add_xxxxxx, transactionId = null, expiration = 0, timestamp = 1599636301936, arrival = 0, brokerInTime = 1599636301937, brokerOutTime = 1599636302110, correlationId = null, replyTo = null, persistent = true, type = null, priority = 4, groupID = null, groupSequence = 0, targetConsumerId = null, compressed = false, userID = null, content = org.apache.activemq.util.ByteSequence@54eae153, marshalledProperties = org.apache.activemq.util.ByteSequence@1318dd4d, dataStructure = null, redeliveryCounter = 0, size = 0, properties = {timestamp=1599636300958}, readOnlyProperties = true, readOnlyBody = true, droppable = false, jmsXGroupFirstForConsumer = false}
不必去指定type维护队列的信息关系，获取
destination = queue: //add_xxxxxx,
即获取originalDestination属性，判断此消息的入队队列是哪个，然后获取该队列的消费者入队消息进行转换
这个方法是肯定能监听到死信队列的，亲测有效。
(1) 死信队列的配置（一般采用默认）
1. sharedDeadLetterStrategy
不管是queue还是topic，失败的消息都放到这个队列中。下面修改activemq.xml的配置，可以达到修改队列的名字。
2. individualDeadLetterStrategy
可以为queue和topic单独指定两个死信队列。还可以为某个话题，单独指定一个死信队列。
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