<!-- ################ 訂單通知服務消費者配置 ################ -->
	<!-- 建立rabbit ConnectionFactory，連線伺服器 -->
	<rabbit:connection-factory id="connectionFactory"
		host="${rabbitmq.host}" username="${rabbitmq.username}" password="${rabbitmq.password}" 
		port="${rabbitmq.port}" virtual-host="${rabbitmq.vhost}" />
	
	<!-- 佇列宣告 -->
	<rabbit:queue id="queue_TestNotify" name="queue_TestNotify" durable="true" auto-delete="false" exclusive="false"/>
	
	<!-- 監聽處理器 -->
	<bean id="tradePayNotifyListener" class="test.prj.main.rabbit.TradePayNotifyListener" />
	
	<!-- 監聽器acknowledge=manual表示手工確認訊息已處理（異常時可以不確認訊息），auto表示自動確認（只要不丟擲異常，訊息就會被消費） -->
	<rabbit:listener-container connection-factory="connectionFactory" acknowledge="manual">
		<rabbit:listener queues="queue_TestNotify" ref="tradePayNotifyListener" method="onMessage"/>
	</rabbit:listener-container>
	
	
	<!-- ################ 延遲佇列生產者配置 ################ -->
	<rabbit:admin connection-factory="connectionFactory" />
    <bean id="jsonMessageConverter" class="org.springframework.amqp.support.converter.Jackson2JsonMessageConverter" />
    <rabbit:template id="rabbitTemplateDelay" connection-factory="connectionFactory" exchange="trade_direct_delay" message-converter="jsonMessageConverter"/>
     
    <rabbit:queue id="queue_TestNotify_delay_15s" name="queue_TestNotify_delay_15s" durable="true" auto-delete="false" exclusive="false">
    	<rabbit:queue-arguments>
            <entry key="x-message-ttl" value="15000" value-type="java.lang.Long"/>
            <entry key="x-dead-letter-exchange" value="trade_direct"/>
            <entry key="x-dead-letter-routing-key" value="routeKey_TradePayNotify"/>
        </rabbit:queue-arguments>
    </rabbit:queue>
    
    <rabbit:queue id="queue_TestNotify_delay_30s" name="queue_TestNotify_delay_30s" durable="true" auto-delete="false" exclusive="false">
    	<rabbit:queue-arguments>
            <entry key="x-message-ttl" value="30000" value-type="java.lang.Long"/>
            <entry key="x-dead-letter-exchange" value="trade_direct"/>
            <entry key="x-dead-letter-routing-key" value="routeKey_TradePayNotify"/>
        </rabbit:queue-arguments>
    </rabbit:queue>
   
    <!-- work exchange -->
	<rabbit:direct-exchange name="trade_direct" durable="true" auto-delete="false">
		<rabbit:bindings>
		    <rabbit:binding queue="queue_TestNotify" key="routeKey_TradePayNotify"/>
		</rabbit:bindings>
	</rabbit:direct-exchange>
	
	<!-- delay exchange -->
	<rabbit:direct-exchange name="trade_direct_delay" durable="true" auto-delete="false">
		<rabbit:bindings>
		    <rabbit:binding queue="queue_TestNotify_delay_15s" key="routeKey_TradePayNotify_delay_15s"/>
		    <rabbit:binding queue="queue_TestNotify_delay_30s" key="routeKey_TradePayNotify_delay_30s"/>
		</rabbit:bindings>
	</rabbit:direct-exchange>
 

實現類似於支付寶通知機制，例如：15s通知一次，30s通知一次，等等。

問題：通知次數已超過最大次數，丟棄佇列資訊？