Question

我的流程是必须使用组件请求 - 回复两次，但当我尝试执行以下问题时：

    <flow name="myprojectFlow">
        <http:listener config-ref="HTTP_Listener_Configuration" path="/" doc:name="HTTP"/>
        <request-reply doc:name="RR1">
            <jms:outbound-endpoint queue="req_queue" doc:name="JMS" connector-ref="Active_MQ">
                <jms:transaction action="ALWAYS_BEGIN"/>
            </jms:outbound-endpoint>
            <jms:inbound-endpoint queue="rep_queue" doc:name="JMS" connector-ref="Active_MQ">
                <jms:transaction action="ALWAYS_BEGIN"/>
            </jms:inbound-endpoint>
        </request-reply>
        <request-reply doc:name="RR2">
            <jms:outbound-endpoint queue="req_queue" doc:name="JMS" connector-ref="Active_MQ">
                <jms:transaction action="ALWAYS_BEGIN"/>
            </jms:outbound-endpoint>
            <jms:inbound-endpoint queue="rep_queue" doc:name="JMS" connector-ref="Active_MQ">
                <jms:transaction action="ALWAYS_BEGIN"/>
            </jms:inbound-endpoint>
        </request-reply>
    </flow>

另一个系统从req_queue接收消息并发送到rep_queue。

错误：

ERROR 2015-10-07 19:48:41,703 [main] org.mule.module.launcher.application.DefaultMuleApplication: null
org.mule.api.transport.ConnectorException: There is already a listener registered on this connector on endpointUri: jms://rep_queue. Connector that caused exception is: ActiveMQJmsConnector
{
  name=Active_MQ
  lifecycle=start
  this=75361cf6
  numberOfConcurrentTransactedReceivers=4
  createMultipleTransactedReceivers=true
  connected=true
  supportedProtocols=[jms]
  serviceOverrides=<none>
}

    at org.mule.transport.AbstractConnector.registerListener(AbstractConnector.java:1258) ~[mule-core-3.7.0.jar:3.7.0]
    at org.mule.endpoint.DefaultInboundEndpoint.start(DefaultInboundEndpoint.java:104) ~[mule-core-3.7.0.jar:3.7.0]
    at org.mule.routing.requestreply.SimpleAsyncRequestReplyRequester.start(SimpleAsyncRequestReplyRequester.java:87) ~[mule-core-3.7.0.jar:3.7.0]
    at org.mule.processor.chain.AbstractMessageProcessorChain.start(AbstractMessageProcessorChain.java:102) ~[mule-core-3.7.0.jar:3.7.0]
    at org.mule.construct.AbstractFlowConstruct.startIfStartable(AbstractFlowConstruct.java:325) ~[mule-core-3.7.0.jar:3.7.0]
    at org.mule.construct.AbstractPipeline.doStart(AbstractPipeline.java:351) ~[mule-core-3.7.0.jar:3.7.0]
    at org.mule.construct.Flow.doStart(Flow.java:90) ~[mule-core-3.7.0.jar:3.7.0]
    at org.mule.construct.AbstractFlowConstruct$2.onTransition(AbstractFlowConstruct.java:136) ~[mule-core-3.7.0.jar:3.7.0]

如何在一个流程中两次使用相同JMS队列的请求 - 回复？

Answer 1

您确定JMS队列指向您吗？我可以看到你发送消息到“req_queue”并指向“rep_queue”来接收消息。你永远不会从“rep_queue”那里得到消息。我稍微修改过并且从我这里工作过。如果它不符合您的要求，请告诉我......

Server 1: 10.0.0.1
Server 2: 10.0.0.2

Mule重用请求 - 回复（相同的JMS队列）

1 个答案: