Caused by: com.rabbitmq.client.ShutdownSignalException: channel error； protocol method: #method＜chan

springboot 结合 RabbitMQ出现的简单报错：

org.springframework.amqp.rabbit.listener.BlockingQueueConsumer$DeclarationException: Failed to declare queue(s):[queue01]
	at org.springframework.amqp.rabbit.listener.BlockingQueueConsumer.attemptPassiveDeclarations(BlockingQueueConsumer.java:760) ~[spring-rabbit-2.4.7.jar:2.4.7]
	at org.springframework.amqp.rabbit.listener.BlockingQueueConsumer.passiveDeclarations(BlockingQueueConsumer.java:637) ~[spring-rabbit-2.4.7.jar:2.4.7]
	at org.springframework.amqp.rabbit.listener.BlockingQueueConsumer.start(BlockingQueueConsumer.java:624) ~[spring-rabbit-2.4.7.jar:2.4.7]
	at org.springframework.amqp.rabbit.listener.SimpleMessageListenerContainer$AsyncMessageProcessingConsumer.initialize(SimpleMessageListenerContainer.java:1378) ~[spring-rabbit-2.4.7.jar:2.4.7]
	at org.springframework.amqp.rabbit.listener.SimpleMessageListenerContainer$AsyncMessageProcessingConsumer.run(SimpleMessageListenerContainer.java:1223) ~[spring-rabbit-2.4.7.jar:2.4.7]
	at java.base/java.lang.Thread.run(Thread.java:840) ~[na:na]
Caused by: java.io.IOException: null
	at com.rabbitmq.client.impl.AMQChannel.wrap(AMQChannel.java:129) ~[amqp-client-5.13.1.jar:5.13.1]
	at com.rabbitmq.client.impl.AMQChannel.wrap(AMQChannel.java:125) ~[amqp-client-5.13.1.jar:5.13.1]
	at com.rabbitmq.client.impl.AMQChannel.exnWrappingRpc(AMQChannel.java:147) ~[amqp-client-5.13.1.jar:5.13.1]
	at com.rabbitmq.client.impl.ChannelN.queueDeclarePassive(ChannelN.java:1012) ~[amqp-client-5.13.1.jar:5.13.1]
	at com.rabbitmq.client.impl.ChannelN.queueDeclarePassive(ChannelN.java:46) ~[amqp-client-5.13.1.jar:5.13.1]
	at jdk.internal.reflect.GeneratedMethodAccessor51.invoke(Unknown Source) ~[na:na]
	at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:na]
	at java.base/java.lang.reflect.Method.invoke(Method.java:568) ~[na:na]
	at org.springframework.amqp.rabbit.connection.CachingConnectionFactory$CachedChannelInvocationHandler.invoke(CachingConnectionFactory.java:1162) ~[spring-rabbit-2.4.7.jar:2.4.7]
	at jdk.proxy2/jdk.proxy2.$Proxy87.queueDeclarePassive(Unknown Source) ~[na:na]
	at org.springframework.amqp.rabbit.listener.BlockingQueueConsumer.attemptPassiveDeclarations(BlockingQueueConsumer.java:738) ~[spring-rabbit-2.4.7.jar:2.4.7]
	... 5 common frames omitted
Caused by: com.rabbitmq.client.ShutdownSignalException: channel error; protocol method: #method<channel.close>(reply-code=404, reply-text=NOT_FOUND - no queue 'queue01' in vhost '/', class-id=50, method-id=10)
	at com.rabbitmq.utility.ValueOrException.getValue(ValueOrException.java:66) ~[amqp-client-5.13.1.jar:5.13.1]
	at com.rabbitmq.utility.BlockingValueOrException.uninterruptibleGetValue(BlockingValueOrException.java:36) ~[amqp-client-5.13.1.jar:5.13.1]
	at com.rabbitmq.client.impl.AMQChannel$BlockingRpcContinuation.getReply(AMQChannel.java:502) ~[amqp-client-5.13.1.jar:5.13.1]
	at com.rabbitmq.client.impl.AMQChannel.privateRpc(AMQChannel.java:293) ~[amqp-client-5.13.1.jar:5.13.1]
	at com.rabbitmq.client.impl.AMQChannel.exnWrappingRpc(AMQChannel.java:141) ~[amqp-client-5.13.1.jar:5.13.1]
	... 13 common frames omitted

分析原因：

Caused by: java.io.IOException: null

channel error; protocol method: #method<channel.close>(reply-code=404, reply-text=NOT_FOUND - no queue 'queue01' in vhost '/', class-id=50, method-id=10)

发现生产者中没有queue01  ，那意思就是在生产端找不到queue01 ，去RabbitMQ发现还真没有，只有queue001。

查看代码，发现是：两个名字不一致而导致报错。

把名字换成一样就好。

报错在网上搜会发现很多类似这样的报错，解决的方法也很多，然后很多都是不细心导致的。