Java 如何在春季amqp中设置basicQos以实现公平调度？

这是我当前的spring amqp配置

<rabbit:connection-factory id="rabbitConnectionFactory"
    port="${rabbitmq.port}" host="${rabbitmq.host}" username="${rabbitmq.username}" password="${rabbitmq.password}"/>

<rabbit:admin id="rabbitmqAdmin" connection-factory="rabbitConnectionFactory" />

<rabbit:template id="importAmqpTemplate"
    connection-factory="rabbitConnectionFactory">
</rabbit:template>

<rabbit:queue name="${process1.queue}" />
<rabbit:queue name="${process1.reply.queue}" />

<rabbit:queue name="${process2.queue}" />
<rabbit:queue name="${process2.reply.queue}" />

<rabbit:direct-exchange name="${myExchange}">
    <rabbit:bindings>
        <rabbit:binding queue="${process1.queue}"
            key="${process1.routing.key}" />
        <rabbit:binding queue="${process2.queue}"
            key="${process2.routing.key}" />
    </rabbit:bindings>
</rabbit:direct-exchange>

<rabbit:listener-container
    connection-factory="rabbitConnectionFactory" concurrency="${my.listener.concurrency}"
    requeue-rejected="false">
    <rabbit:listener queues="${process1.queue}"
        ref="foundation" method="process1" />
    <rabbit:listener queues="${process2.queue}"
        ref="foundation" method="process2s" />
</rabbit:listener-container>


<beans:beans profile="master">

    <beans:bean id="process1Lbq" class="java.util.concurrent.LinkedBlockingQueue" />
    <beans:bean id="process2Lbq" class="java.util.concurrent.LinkedBlockingQueue" />

    <beans:bean id="process1sReplyHandler"
        class="com.stockopedia.batch.foundation.ReplyHandler"
        p:blockingQueue-ref="process1Lbq" />

    <beans:bean id="process2ReplyHandler"
        class="com.stockopedia.batch.foundation.ReplyHandler"
        p:blockingQueue-ref="process2Lbq" />

    <rabbit:listener-container
        connection-factory="rabbitConnectionFactory" concurrency="1"
        requeue-rejected="false">
        <rabbit:listener queues="${process1.reply.queue}"
            ref="process1sHandler" method="onMessage" />
        <rabbit:listener queues="${process2.reply.queue}"
            ref="process2ReplyHandler" method="onMessage" />
    </rabbit:listener-container>

</beans:beans>

或者它是spring ampq的默认值？如果没有，我该怎么做？

basicQos（1）

是侦听器容器的默认设置；可以通过在容器上设置

预取

来更改

我可以看到队列中等待处理的消息，一些服务器处于空闲状态

如果您有空闲的消费者，您不应该只看到队列中的消息。如果邮件被标记为未确认，则它们正在被处理

如果启用调试级别日志记录，您将能够看到空闲使用者轮询内部队列以获得新的传递

int prefetchCount = 1;
channel.basicQos(prefetchCount);