消費端代碼：

報錯：

org.springframework.amqp.rabbit.listener.exception.ListenerExecutionFailedException: Listener threw exception

at org.springframework.amqp.rabbit.listener.AbstractMessageListenerContainer.wrapToListenerExecutionFailedExceptionIfNeeded(AbstractMessageListenerContainer.java:1506) ~[spring-rabbit-2.0.5.RELEASE.jar:2.0.5.RELEASE]

at org.springframework.amqp.rabbit.listener.AbstractMessageListenerContainer.doInvokeListener(AbstractMessageListenerContainer.java:1417) ~[spring-rabbit-2.0.5.RELEASE.jar:2.0.5.RELEASE]

at org.springframework.amqp.rabbit.listener.AbstractMessageListenerContainer.actualInvokeListener(AbstractMessageListenerContainer.java:1337) ~[spring-rabbit-2.0.5.RELEASE.jar:2.0.5.RELEASE]

at org.springframework.amqp.rabbit.listener.AbstractMessageListenerContainer.invokeListener(AbstractMessageListenerContainer.java:1324) ~[spring-rabbit-2.0.5.RELEASE.jar:2.0.5.RELEASE]

at org.springframework.amqp.rabbit.listener.AbstractMessageListenerContainer.executeListener(AbstractMessageListenerContainer.java:1303) ~[spring-rabbit-2.0.5.RELEASE.jar:2.0.5.RELEASE]

at org.springframework.amqp.rabbit.listener.SimpleMessageListenerContainer.doReceiveAndExecute(SimpleMessageListenerContainer.java:817) [spring-rabbit-2.0.5.RELEASE.jar:2.0.5.RELEASE]

at org.springframework.amqp.rabbit.listener.SimpleMessageListenerContainer.receiveAndExecute(SimpleMessageListenerContainer.java:801) [spring-rabbit-2.0.5.RELEASE.jar:2.0.5.RELEASE]

at org.springframework.amqp.rabbit.listener.SimpleMessageListenerContainer.access$700(SimpleMessageListenerContainer.java:77) [spring-rabbit-2.0.5.RELEASE.jar:2.0.5.RELEASE]

at org.springframework.amqp.rabbit.listener.SimpleMessageListenerContainer$AsyncMessageProcessingConsumer.run(SimpleMessageListenerContainer.java:1042) [spring-rabbit-2.0.5.RELEASE.jar:2.0.5.RELEASE]

at java.lang.Thread.run(Thread.java:748) [na:1.8.0_161]

Caused by: org.springframework.amqp.support.converter.MessageConversionException: failed to convert serialized Message content

at org.springframework.amqp.support.converter.SimpleMessageConverter.fromMessage(SimpleMessageConverter.java:114) ~[spring-amqp-2.0.5.RELEASE.jar:2.0.5.RELEASE]

at org.springframework.amqp.rabbit.listener.adapter.AbstractAdaptableMessageListener.extractMessage(AbstractAdaptableMessageListener.java:262) ~[spring-rabbit-2.0.5.RELEASE.jar:2.0.5.RELEASE]

at org.springframework.amqp.rabbit.listener.adapter.MessagingMessageListenerAdapter$MessagingMessageConverterAdapter.extractPayload(MessagingMessageListenerAdapter.java:266) ~[spring-rabbit-2.0.5.RELEASE.jar:2.0.5.RELEASE]

at org.springframework.amqp.support.converter.MessagingMessageConverter.fromMessage(MessagingMessageConverter.java:118) ~[spring-amqp-2.0.5.RELEASE.jar:2.0.5.RELEASE]

at org.springframework.amqp.rabbit.listener.adapter.MessagingMessageListenerAdapter.toMessagingMessage(MessagingMessageListenerAdapter.java:168) ~[spring-rabbit-2.0.5.RELEASE.jar:2.0.5.RELEASE]

at org.springframework.amqp.rabbit.listener.adapter.MessagingMessageListenerAdapter.onMessage(MessagingMessageListenerAdapter.java:115) ~[spring-rabbit-2.0.5.RELEASE.jar:2.0.5.RELEASE]

at org.springframework.amqp.rabbit.listener.AbstractMessageListenerContainer.doInvokeListener(AbstractMessageListenerContainer.java:1414) ~[spring-rabbit-2.0.5.RELEASE.jar:2.0.5.RELEASE]

... 8 common frames omitted

Caused by: java.lang.IllegalStateException: Could not deserialize object type

at org.springframework.amqp.utils.SerializationUtils.deserialize(SerializationUtils.java:90) ~[spring-amqp-2.0.5.RELEASE.jar:2.0.5.RELEASE]

at org.springframework.amqp.support.converter.SimpleMessageConverter.fromMessage(SimpleMessageConverter.java:110) ~[spring-amqp-2.0.5.RELEASE.jar:2.0.5.RELEASE]

... 14 common frames omitted

Caused by: java.lang.ClassNotFoundException: zool.rabbitmq.producer.entity.Order

at java.net.URLClassLoader.findClass(URLClassLoader.java:381) ~[na:1.8.0_161]

at java.lang.ClassLoader.loadClass(ClassLoader.java:424) ~[na:1.8.0_161]

at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:338) ~[na:1.8.0_161]

at java.lang.ClassLoader.loadClass(ClassLoader.java:357) ~[na:1.8.0_161]

at org.springframework.util.ClassUtils.forName(ClassUtils.java:274) ~[spring-core-5.0.8.RELEASE.jar:5.0.8.RELEASE]

at org.springframework.core.ConfigurableObjectInputStream.resolveClass(ConfigurableObjectInputStream.java:76) ~[spring-core-5.0.8.RELEASE.jar:5.0.8.RELEASE]

at org.springframework.amqp.support.converter.SimpleMessageConverter$1.resolveClass(SimpleMessageConverter.java:178) ~[spring-amqp-2.0.5.RELEASE.jar:2.0.5.RELEASE]

at java.io.ObjectInputStream.readNonProxyDesc(ObjectInputStream.java:1859) ~[na:1.8.0_161]

at java.io.ObjectInputStream.readClassDesc(ObjectInputStream.java:1745) ~[na:1.8.0_161]

at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:2033) ~[na:1.8.0_161]

at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1567) ~[na:1.8.0_161]

at java.io.ObjectInputStream.readObject(ObjectInputStream.java:427) ~[na:1.8.0_161]

at org.springframework.amqp.utils.SerializationUtils.deserialize(SerializationUtils.java:84) ~[spring-amqp-2.0.5.RELEASE.jar:2.0.5.RELEASE]

... 15 common frames omitted

2019-02-07 13:07:52.772? WARN 7056 --- [cTaskExecutor-1] ingErrorHandler$DefaultExceptionStrategy : Fatal message conversion error; message rejected; it will be dropped or routed to a dead letter exchange, if so configured: (Body:'[B@2b79a595(byte[801])' MessageProperties [headers={}, contentType=application/x-java-serialized-object, contentLength=0, receivedDeliveryMode=PERSISTENT, priority=0, redelivered=true, receivedExchange=order-exchange, receivedRoutingKey=order.abc, deliveryTag=1, consumerTag=amq.ctag-ofVW6XNM8mAYJ-D2Z9O60Q, consumerQueue=order-queue])