最大尝试后,在队列尾部重新排队兔子AMQP消息

Question

我目前正在使用带弹簧的RabbitMQ(spring-rabbit-1.2.0-RELEASE),配置如下:

<rabbit:template id="amqpTemplate" connection-factory="connectionFactory"/>
<!-- Asynchronous exchanges -->
<!-- Admin -->
<rabbit:admin connection-factory="connectionFactory"/>

<!-- Error Handler -->
<bean id="biErrorHandler" class="my.project.sync.BiErrorHandler" />
<!-- Message converter -->
<bean id="biMessageConverter" class="my.project.sync.BiMessageConverter"/>

<bean id="retryInterceptor" class="org.springframework.amqp.rabbit.config.StatefulRetryOperationsInterceptorFactoryBean">
    <property name="messageRecoverer" ref="rejectAndDontRequeueRecoverer"/>
    <property name="retryOperations" ref="retryTemplate" />
    <property name="messageKeyGenerator" ref="biKeyGenerator" />
</bean> 

<bean id="biKeyGenerator" class="my.project.sync.BiMessageKeyGenerator"/>
<bean id="rejectAndDontRequeueRecoverer" class="org.springframework.amqp.rabbit.retry.RejectAndDontRequeueRecoverer"/>

<bean id="retryTemplate" class="org.springframework.retry.support.RetryTemplate">
    <property name="backOffPolicy">
        <bean class="org.springframework.retry.backoff.ExponentialBackOffPolicy">
            <property name="initialInterval" value="3000" />
            <property name="maxInterval" value="30000" />
        </bean>     
    </property>
    <property name="retryPolicy">
        <bean class="org.springframework.retry.policy.SimpleRetryPolicy">
            <property name="maxAttempts" value="3" />
        </bean>     
    </property>
</bean>  

 <rabbit:queue id="biSynchronizationQueue" name="BI_SYNCHRONIZATION_QUEUE" durable="true" />
<rabbit:listener-container message-converter="biMessageConverter" concurrency="1" 
    connection-factory="connectionFactory"
    error-handler="biErrorHandler"
    advice-chain="retryInterceptor"
    acknowledge="auto">
    <rabbit:listener queues="BI_SYNCHRONIZATION_QUEUE" ref="biSynchronizationService" method="handleMessage"/>
</rabbit:listener-container>

我想在第三次尝试后在队列的尾部重新排队消息.但我找不到一种方法来执行该操作.

有人有想法吗？

在此先感谢您的帮助.

Answer 1

除了使用的RejectAndDontRequeueRecoverer,使用自定义MessageRecoverer使用一个RabbitTemplate将消息发送到队列的后面; 然后抛出一条AmqpRejectAndDontRequeueException消息将被拒绝.

您可以子类化RejectAndDontRequeueRecoverer,发送消息recover()然后调用super.recover()(这只是抛出异常).或者只是自己完成所有实现recover().