Question

我正在尝试将payload发送到gemfire缓存。我收到此payload作为MQ消息。如果我的outbound adapter是另一个Queue，则可以正常使用。

但是，当出站通道是Gemfire的出站适配器时，它会抛出异常。以下是代码段。

这里的帮助非常感谢。因为我是Gemfire + Spring IO的新手

<jms:message-driven-channel-adapter id="wMQ_in_channelAdapter" 
       concurrent-consumers="5"
       max-concurrent-consumers="10"
       connection-factory="inCachingConnectionFactory"           
       destination="requestQueue-mq"
       extract-payload="true"
       channel="demoChannel"/>


<integration:channel id="demoChannel"/>

<integration:service-activator input-channel="demoChannel" 
            ref="demoBean"
            method="upperCase"
            output-channel="orchestrationChannel" /> 

<integration:channel id="orchestrationChannel"/>

<gfe:cache id="PushProducer" cache-xml-location="classpath:PushProducer.xml"/>

<gfe:lookup-region id="exampleRegion" cache-ref="PushProducer" name="exampleRegion"/> 

<int-gfe:outbound-channel-adapter id="cacheChannel" channel="orchestrationChannel" region="exampleRegion">
        <int-gfe:cache-entries>
            <entry key="payload" value="abcd"/>
        </int-gfe:cache-entries> 
</int-gfe:outbound-channel-adapter>

以下是我在应用程序中收到消息时看到的错误

[org.springframework.jms.listener.DefaultMessageListenerContainer#0-3][org.springframework.integration.gemfire.outbound.CacheWritingMessageHandler] org.springframework.integration.gemfire.outbound.CacheWritingMessageHandler#0 received message: GenericMessage [payload=<?xml version="1.0" encoding="UTF-8"?

payload打印在上面的行中..以下行是错误

12:20:00.196 WARN  [org.springframework.jms.listener.DefaultMessageListenerContainer#0-3][org.springframework.jms.listener.DefaultMessageListenerContainer] Execution of JMS message listener failed, and no ErrorHandler has been set.
java.lang.AbstractMethodError
    at org.springframework.integration.handler.AbstractMessageHandler.handleMessage(AbstractMessageHandler.java:78)
    at org.springframework.integration.dispatcher.AbstractDispatcher.tryOptimizedDispatch(AbstractDispatcher.java:116)
    at org.springframework.integration.dispatcher.UnicastingDispatcher.doDispatch(UnicastingDispatcher.java:101)
    at org.springframework.integration.dispatcher.UnicastingDispatcher.dispatch(UnicastingDispatcher.java:97)
    at org.springframework.integration.channel.AbstractSubscribableChannel.doSend(AbstractSubscribableChannel.java:77)
    at org.springframework.integration.channel.AbstractMessageChannel.send(AbstractMessageChannel.java:277)
    at org.springframework.integration.channel.AbstractMessageChannel.send(AbstractMessageChannel.java:239)
    at org.springframework.messaging.core.GenericMessagingTemplate.doSend(GenericMessagingTemplate.java:115)
    at org.springframework.messaging.core.GenericMessagingTemplate.doSend(GenericMessagingTemplate.java:45)
    at org.springframework.messaging.core.AbstractMessageSendingTemplate.send(AbstractMessageSendingTemplate.java:95)
    at org.springframework.integration.handler.AbstractMessageProducingHandler.sendOutput(AbstractMessageProducingHandler.java:248)
    at org.springframework.integration.handler.AbstractMessageProducingHandler.produceOutput(AbstractMessageProducingHandler.java:171)
    at org.springframework.integration.handler.AbstractMessageProducingHandler.sendOutputs(AbstractMessageProducingHandler.java:119)
    at org.springframework.integration.handler.AbstractReplyProducingMessageHandler.handleMessageInternal(AbstractReplyProducingMessageHandler.java:105)
    at org.springframework.integration.handler.AbstractMessageHandler.handleMessage(AbstractMessageHandler.java:78)
    at org.springframework.integration.dispatcher.AbstractDispatcher.tryOptimizedDispatch(AbstractDispatcher.java:116)
    at org.springframework.integration.dispatcher.UnicastingDispatcher.doDispatch(UnicastingDispatcher.java:101)
    at org.springframework.integration.dispatcher.UnicastingDispatcher.dispatch(UnicastingDispatcher.java:97)
    at org.springframework.integration.channel.AbstractSubscribableChannel.doSend(AbstractSubscribableChannel.java:77)
    at org.springframework.integration.channel.AbstractMessageChannel.send(AbstractMessageChannel.java:277)
    at org.springframework.messaging.core.GenericMessagingTemplate.doSend(GenericMessagingTemplate.java:115)
    at org.springframework.messaging.core.GenericMessagingTemplate.doSend(GenericMessagingTemplate.java:45)
    at org.springframework.messaging.core.AbstractMessageSendingTemplate.send(AbstractMessageSendingTemplate.java:95)
    at org.springframework.messaging.core.AbstractMessageSendingTemplate.convertAndSend(AbstractMessageSendingTemplate.java:133)
    at org.springframework.messaging.core.AbstractMessageSendingTemplate.convertAndSend(AbstractMessageSendingTemplate.java:125)
    at org.springframework.integration.gateway.MessagingGatewaySupport.send(MessagingGatewaySupport.java:302)
    at org.springframework.integration.jms.ChannelPublishingJmsMessageListener$GatewayDelegate.send(ChannelPublishingJmsMessageListener.java:479)
    at org.springframework.integration.jms.ChannelPublishingJmsMessageListener.onMessage(ChannelPublishingJmsMessageListener.java:322)
    at org.springframework.jms.listener.AbstractMessageListenerContainer.doInvokeListener(AbstractMessageListenerContainer.java:660)
    at org.springframework.jms.listener.AbstractMessageListenerContainer.invokeListener(AbstractMessageListenerContainer.java:620)
    at org.springframework.jms.listener.AbstractMessageListenerContainer.doExecuteListener(AbstractMessageListenerContainer.java:591)
    at org.springframework.jms.listener.AbstractPollingMessageListenerContainer.doReceiveAndExecute(AbstractPollingMessageListenerContainer.java:308)
    at org.springframework.jms.listener.AbstractPollingMessageListenerContainer.receiveAndExecute(AbstractPollingMessageListenerContainer.java:246)
    at org.springframework.jms.listener.DefaultMessageListenerContainer$AsyncMessageListenerInvoker.invokeListener(DefaultMessageListenerContainer.java:1142)
    at org.springframework.jms.listener.DefaultMessageListenerContainer$AsyncMessageListenerInvoker.executeOngoingLoop(DefaultMessageListenerContainer.java:1134)
    at org.springframework.jms.listener.DefaultMessageListenerContainer$AsyncMessageListenerInvoker.run(DefaultMessageListenerContainer.java:1031)
    at java.lang.Thread.run(Thread.java:662)

Answer 1

首先，堆栈跟踪中没有足够的信息。关于CacheWritingMessageHandler没有任何意见。

从另一方面看：http://docs.spring.io/spring-integration/docs/latest-ga/reference/html/gemfire.html#gemfire-outbound。因此，<entry key="payload" value="abcd"/>无效，因为key和value都必须是SpEL表达式。由于根评估对象为Message，因此getAbcd()对象上没有此类getter Message。

Answer 2

AbstractMethodError通常是因为类路径问题（版本不匹配）。

在这种情况下，看起来您正在使用spring-integration-core 4.x和spring-integration-gemfire 3.x（或更早）;反之亦然。

在4.0中，该方法的签名发生了变化（不同的Message对象）。

我建议你将4.1.2用于所有事情。

Spring集成出站通道，用于Gemfire存储有效负载

2 个答案: