在学习怎么使用springboot发送和接收rabbitmq的数据
已成功接收到rabbitmq的数据。
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根据idea打印的信息，我猜测是黄色框处有问题，我不知道那是什么意思，老师只说了他的作用；原理之类的并没有说清楚。
根据网上的说法：实体类已序列化，这个方法已设置成void类型，还是不行
1、请问那行代码是怎么起作用的？
2、这个bug要怎么处理呢？
麻烦大神两点一起回答，不然很难给分
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2020-04-05 21:26:57.811 WARN 10812 --- [ntContainer#0-1] s.a.r.l.ConditionalRejectingErrorHandler : Execution of Rabbit message listener failed.
org.springframework.amqp.rabbit.listener.exception.ListenerExecutionFailedException: Listener threw exception
at org.springframework.amqp.rabbit.listener.AbstractMessageListenerContainer.wrapToListenerExecutionFailedExceptionIfNeeded(AbstractMessageListenerContainer.java:1641) ~[spring-rabbit-2.1.12.RELEASE.jar:2.1.12.RELEASE]
at org.springframework.amqp.rabbit.listener.AbstractMessageListenerContainer.doInvokeListener(AbstractMessageListenerContainer.java:1545) ~[spring-rabbit-2.1.12.RELEASE.jar:2.1.12.RELEASE]
at org.springframework.amqp.rabbit.listener.AbstractMessageListenerContainer.actualInvokeListener(AbstractMessageListenerContainer.java:1468) ~[spring-rabbit-2.1.12.RELEASE.jar:2.1.12.RELEASE]
at org.springframework.amqp.rabbit.listener.AbstractMessageListenerContainer.invokeListener(AbstractMessageListenerContainer.java:1456) ~[spring-rabbit-2.1.12.RELEASE.jar:2.1.12.RELEASE]
at org.springframework.amqp.rabbit.listener.AbstractMessageListenerContainer.doExecuteListener(AbstractMessageListenerContainer.java:1451) ~[spring-rabbit-2.1.12.RELEASE.jar:2.1.12.RELEASE]
at org.springframework.amqp.rabbit.listener.AbstractMessageListenerContainer.executeListener(AbstractMessageListenerContainer.java:1400) ~[spring-rabbit-2.1.12.RELEASE.jar:2.1.12.RELEASE]
at org.springframework.amqp.rabbit.listener.SimpleMessageListenerContainer.doReceiveAndExecute(SimpleMessageListenerContainer.java:875) ~[spring-rabbit-2.1.12.RELEASE.jar:2.1.12.RELEASE]
at org.springframework.amqp.rabbit.listener.SimpleMessageListenerContainer.receiveAndExecute(SimpleMessageListenerContainer.java:859) ~[spring-rabbit-2.1.12.RELEASE.jar:2.1.12.RELEASE]
at org.springframework.amqp.rabbit.listener.SimpleMessageListenerContainer.access$1600(SimpleMessageListenerContainer.java:78) ~[spring-rabbit-2.1.12.RELEASE.jar:2.1.12.RELEASE]
at org.springframework.amqp.rabbit.listener.SimpleMessageListenerContainer$AsyncMessageProcessingConsumer.mainLoop(SimpleMessageListenerContainer.java:1142) ~[spring-rabbit-2.1.12.RELEASE.jar:2.1.12.RELEASE]
at org.springframework.amqp.rabbit.listener.SimpleMessageListenerContainer$AsyncMessageProcessingConsumer.run(SimpleMessageListenerContainer.java:1048) ~[spring-rabbit-2.1.12.RELEASE.jar:2.1.12.RELEASE]
at java.base/java.lang.Thread.run(Thread.java:834) ~[na:na]
Caused by: org.springframework.amqp.rabbit.listener.adapter.ReplyFailureException: Failed to send reply with payload 'InvocationResult [returnValue=true, returnType=boolean]'
at org.springframework.amqp.rabbit.listener.adapter.AbstractAdaptableMessageListener.doHandleResult(AbstractAdaptableMessageListener.java:426) ~[spring-rabbit-2.1.12.RELEASE.jar:2.1.12.RELEASE]
at org.springframework.amqp.rabbit.listener.adapter.AbstractAdaptableMessageListener.handleResult(AbstractAdaptableMessageListener.java:358) ~[spring-rabbit-2.1.12.RELEASE.jar:2.1.12.RELEASE]
at org.springframework.amqp.rabbit.listener.adapter.MessagingMessageListenerAdapter.onMessage(MessagingMessageListenerAdapter.java:131) ~[spring-rabbit-2.1.12.RELEASE.jar:2.1.12.RELEASE]
at org.springframework.amqp.rabbit.listener.AbstractMessageListenerContainer.doInvokeListener(AbstractMessageListenerContainer.java:1542) ~[spring-rabbit-2.1.12.RELEASE.jar:2.1.12.RELEASE]
... 10 common frames omitted
Caused by: org.springframework.amqp.AmqpException: Cannot determine ReplyTo message property value: Request message does not contain reply-to property, and no default response Exchange was set.
at org.springframework.amqp.rabbit.listener.adapter.AbstractAdaptableMessageListener.getReplyToAddress(AbstractAdaptableMessageListener.java:506) ~[spring-rabbit-2.1.12.RELEASE.jar:2.1.12.RELEASE]
at org.springframework.amqp.rabbit.listener.adapter.AbstractAdaptableMessageListener.doHandleResult(AbstractAdaptableMessageListener.java:422) ~[spring-rabbit-2.1.12.RELEASE.jar:2.1.12.RELEASE]
... 13 common frames omitted
2020-04-05 21:31:35.973 INFO 10812 --- [trap-executor-0] c.n.d.s.r.aws.ConfigClusterResolver : Resolving eureka endpoints via configuration
