我已经创建了CLIENT_ACKNOWLEDGE模式简单的骡子JMS流。 我与“CLIENT_ACKNOWLEDGE的理解是，我们必须明确承认在接收器或客户端的消息，它不会从队列中消耗，直到它不会承认。
<spring:beans>
<spring:bean name="connectionFactory"
class="org.apache.activemq.ActiveMQConnectionFactory">
<spring:property name="brokerURL" value="tcp://localhost:61616" />
<spring:property name="redeliveryPolicy">
<spring:bean class="org.apache.activemq.RedeliveryPolicy">
<spring:property name="maximumRedeliveries" value="10" />
<spring:property name="initialRedeliveryDelay"
value="1000" />
</spring:bean>
</spring:property>
</spring:bean>
</spring:beans>
<jms:connector name="Active_MQ3" connectionFactory-ref="connectionFactory" acknowledgementMode="CLIENT_ACKNOWLEDGE" maxRedelivery="10" persistentDelivery="true" specification="1.1" />
<flow name="main1" doc:name="main1">
<http:inbound-endpoint exchange-pattern="request-response" host="localhost" path="test" port="8099" doc:name="HTTP"/>
<logger message="starting main flow" level="INFO" doc:name="Logger"/>
<jms:outbound-endpoint queue="StudioIN" connector-ref="Active_MQ3" doc:name="JMS">
<jms:transaction action="NONE"/>
</jms:outbound-endpoint>
</flow>
//reading msg from queue, not acknowledging
<flow name="worker1" doc:name="worker1">
<jms:inbound-endpoint queue="StudioIN" connector-ref="Active_MQ1" doc:name="JMS"/>
<logger message="Consuming payload: #[payload]" level="INFO" doc:name="Logger"/>
</flow>
</mule>
在我的测试流程我还没有确认该消息，但它仍然得到了消耗。 我们怎样才能保持在队列中的消息，直到它从客户端获得或接收方承认？
<!-------------- Updated flow ------------------------>
<flow name="worker1" doc:name="worker1">
<jms:inbound-endpoint queue="StudioIN" connector-ref="Active_MQ1" doc:name="JMS">
<jms:client-ack-transaction action="ALWAYS_BEGIN"/>
</jms:inbound-endpoint>
<logger message="Consuming payload: #[payload]" level="INFO" doc:name="Logger"/>
</flow>
