启动SpringCloud微服务，RabbitMQ报如下异常：
2019-08-12 18:15:49.543 ERROR 53096 --- [68.252.131:5672] o.s.a.r.c.CachingConnectionFactory : Channel shutdown: channel error; protocol method: #method<channel
.close>(reply-code=406, reply-text=PRECONDITION_FAILED - inequivalent arg 'type' for exchange 'hotelproduct_delay_exchange' in vhost 'shinetour': received 'topic' but
current is 'headers', class-id=40, method-id=10)
2019-08-12 18:15:53.547 INFO 53096 --- [qTaskExecutor-1] o.s.amqp.rabbit.core.RabbitAdmin : Auto-declaring a non-durable, auto-delete, or exclusive Queue (ho
telproduct_error_queue) durable:true, auto-delete:true, exclusive:false. It will be redeclared if the broker stops and is restarted while the connection factory is al
ive, but all messages will be lost.
2019-08-12 18:15:53.549 ERROR 53096 --- [68.252.131:5672] o.s.a.r.c.CachingConnectionFactory : Channel shutdown: channel error; protocol method: #method<channel
.close>(reply-code=406, reply-text=PRECONDITION_FAILED - inequivalent arg 'type' for exchange 'hotelproduct_delay_exchange' in vhost 'shinetour': received 'topic' but
current is 'headers', class-id=40, method-id=10)
2019-08-12 18:15:58.554 INFO 53096 --- [qTaskExecutor-1] o.s.amqp.rabbit.core.RabbitAdmin : Auto-declaring a non-durable, auto-delete, or exclusive Queue (ho
telproduct_error_queue) durable:true, auto-delete:true, exclusive:false. It will be redeclared if the broker stops and is restarted while the connection factory is al
ive, but all messages will be lost.
2019-08-12 18:15:58.558 ERROR 53096 --- [68.252.131:5672] o.s.a.r.c.CachingConnectionFactory : Channel shutdown: channel error; protocol method: #method<channel
.close>(reply-code=406, reply-text=PRECONDITION_FAILED - inequivalent arg 'type' for exchange 'hotelproduct_delay_exchange' in vhost 'shinetour': received 'topic' but
current is 'headers', class-id=40, method-id=10)
2019-08-12 18:15:58.567 ERROR 53096 --- [qTaskExecutor-1] o.s.a.r.l.SimpleMessageListenerContainer : Failed to check/redeclare auto-delete queue(s).
org.springframework.amqp.AmqpIOException: java.io.IOException
at org.springframework.amqp.rabbit.support.RabbitExceptionTranslator.convertRabbitAccessException(RabbitExceptionTranslator.java:71) ~[spring-rabbit-2.0.4.REL
EASE.jar!/:2.0.4.RELEASE]
at org.springframework.amqp.rabbit.connection.RabbitAccessor.convertRabbitAccessException(RabbitAccessor.java:113) ~[spring-rabbit-2.0.4.RELEASE.jar!/:2.0.4.R
ELEASE]
at org.springframework.amqp.rabbit.core.RabbitTemplate.doExecute(RabbitTemplate.java:1834) ~[spring-rabbit-2.0.4.RELEASE.jar!/:2.0.4.RELEASE]
at org.springframework.amqp.rabbit.core.RabbitTemplate.execute(RabbitTemplate.java:1771) ~[spring-rabbit-2.0.4.RELEASE.jar!/:2.0.4.RELEASE]
at org.springframework.amqp.rabbit.core.RabbitTemplate.execute(RabbitTemplate.java:1752) ~[spring-rabbit-2.0.4.RELEASE.jar!/:2.0.4.RELEASE]
at org.springframework.amqp.rabbit.core.RabbitAdmin.initialize(RabbitAdmin.java:540) ~[spring-rabbit-2.0.4.RELEASE.jar!/:2.0.4.RELEASE]
at org.springframework.amqp.rabbit.core.RabbitAdmin.lambda$null$9(RabbitAdmin.java:453) ~[spring-rabbit-2.0.4.RELEASE.jar!/:2.0.4.RELEASE]
at org.springframework.retry.support.RetryTemplate.doExecute(RetryTemplate.java:287) ~[spring-retry-1.2.2.RELEASE.jar!/:na]
at org.springframework.retry.support.RetryTemplate.execute(RetryTemplate.java:164) ~[spring-retry-1.2.2.RELEASE.jar!/:na]
at org.springframework.amqp.rabbit.core.RabbitAdmin.lambda$afterPropertiesSet$10(RabbitAdmin.java:452) ~[spring-rabbit-2.0.4.RELEASE.jar!/:2.0.4.RELEASE]
at org.springframework.amqp.rabbit.connection.CompositeConnectionListener.onCreate(CompositeConnectionListener.java:36) ~[spring-rabbit-2.0.4.RELEASE.jar!/:2.
0.4.RELEASE]
at org.springframework.amqp.rabbit.connection.CachingConnectionFactory.createConnection(CachingConnectionFactory.java:620) ~[spring-rabbit-2.0.4.RELEASE.jar!/
:2.0.4.RELEASE]
at org.springframework.amqp.rabbit.connection.ConnectionFactoryUtils.createConnection(ConnectionFactoryUtils.java:240) ~[spring-rabbit-2.0.4.RELEASE.jar!/:2.0
.4.RELEASE]
at org.springframework.amqp.rabbit.core.RabbitTemplate.doExecute(RabbitTemplate.java:1797) ~[spring-rabbit-2.0.4.RELEASE.jar!/:2.0.4.RELEASE]
at org.springframework.amqp.rabbit.core.RabbitTemplate.execute(RabbitTemplate.java:1771) ~[spring-rabbit-2.0.4.RELEASE.jar!/:2.0.4.RELEASE]
at org.springframework.amqp.rabbit.core.RabbitTemplate.execute(RabbitTemplate.java:1752) ~[spring-rabbit-2.0.4.RELEASE.jar!/:2.0.4.RELEASE]
at org.springframework.amqp.rabbit.core.RabbitAdmin.getQueueProperties(RabbitAdmin.java:345) ~[spring-rabbit-2.0.4.RELEASE.jar!/:2.0.4.RELEASE]
at org.springframework.amqp.rabbit.listener.AbstractMessageListenerContainer.redeclareElementsIfNecessary(AbstractMessageListenerContainer.java:1604) ~[spring
-rabbit-2.0.4.RELEASE.jar!/:2.0.4.RELEASE]
at org.springframework.amqp.rabbit.listener.SimpleMessageListenerContainer$AsyncMessageProcessingConsumer.run(SimpleMessageListenerContainer.java:995) [spring
-rabbit-2.0.4.RELEASE.jar!/:2.0.4.RELEASE]
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) [na:1.8.0_66]
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) [na:1.8.0_66]
at java.lang.Thread.run(Thread.java:745) [na:1.8.0_66]
Caused by: java.io.IOException: null
at com.rabbitmq.client.impl.AMQChannel.wrap(AMQChannel.java:126) ~[amqp-client-5.1.2.jar!/:5.1.2]
at com.rabbitmq.client.impl.AMQChannel.wrap(AMQChannel.java:122) ~[amqp-client-5.1.2.jar!/:5.1.2]
at com.rabbitmq.client.impl.AMQChannel.exnWrappingRpc(AMQChannel.java:144) ~[amqp-client-5.1.2.jar!/:5.1.2]
at com.rabbitmq.client.impl.ChannelN.exchangeDeclare(ChannelN.java:762) ~[amqp-client-5.1.2.jar!/:5.1.2]
at com.rabbitmq.client.impl.recovery.AutorecoveringChannel.exchangeDeclare(AutorecoveringChannel.java:237) ~[amqp-client-5.1.2.jar!/:5.1.2]
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:1.8.0_66]
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[na:1.8.0_66]
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:1.8.0_66]
at java.lang.reflect.Method.invoke(Method.java:497) ~[na:1.8.0_66]
at org.springframework.amqp.rabbit.connection.CachingConnectionFactory$CachedChannelInvocationHandler.invoke(CachingConnectionFactory.java:991) ~[spring-rabbi
t-2.0.4.RELEASE.jar!/:2.0.4.RELEASE]
at com.sun.proxy.$Proxy120.exchangeDeclare(Unknown Source) ~[na:na]
at org.springframework.amqp.rabbit.core.RabbitAdmin.declareExchanges(RabbitAdmin.java:587) ~[spring-rabbit-2.0.4.RELEASE.jar!/:2.0.4.RELEASE]
at org.springframework.amqp.rabbit.core.RabbitAdmin.lambda$initialize$11(RabbitAdmin.java:541) ~[spring-rabbit-2.0.4.RELEASE.jar!/:2.0.4.RELEASE]
at org.springframework.amqp.rabbit.core.RabbitTemplate.doExecute(RabbitTemplate.java:1828) ~[spring-rabbit-2.0.4.RELEASE.jar!/:2.0.4.RELEASE]
... 19 common frames omitted
Caused by: com.rabbitmq.client.ShutdownSignalException: channel error; protocol method: #method<channel.close>(reply-code=406, reply-text=PRECONDITION_FAILED - inequi
valent arg 'type' for exchange 'hotelproduct_delay_exchange' in vhost 'shinetour': received 'topic' but current is 'headers', class-id=40, method-id=10)
at com.rabbitmq.utility.ValueOrException.getValue(ValueOrException.java:66) ~[amqp-client-5.1.2.jar!/:5.1.2]
at com.rabbitmq.utility.BlockingValueOrException.uninterruptibleGetValue(BlockingValueOrException.java:36) ~[amqp-client-5.1.2.jar!/:5.1.2]
at com.rabbitmq.client.impl.AMQChannel$BlockingRpcContinuation.getReply(AMQChannel.java:494) ~[amqp-client-5.1.2.jar!/:5.1.2]
at com.rabbitmq.client.impl.AMQChannel.privateRpc(AMQChannel.java:288) ~[amqp-client-5.1.2.jar!/:5.1.2]
at com.rabbitmq.client.impl.AMQChannel.exnWrappingRpc(AMQChannel.java:138) ~[amqp-client-5.1.2.jar!/:5.1.2]
... 30 common frames omitted
Caused by: com.rabbitmq.client.ShutdownSignalException: channel error; protocol method: #method<channel.close>(reply-code=406, reply-text=PRECONDITION_FAILED - inequi
valent arg 'type' for exchange 'hotelproduct_delay_exchange' in vhost 'shinetour': received 'topic' but current is 'headers', class-id=40, method-id=10)
at com.rabbitmq.client.impl.ChannelN.asyncShutdown(ChannelN.java:504) ~[amqp-client-5.1.2.jar!/:5.1.2]
at com.rabbitmq.client.impl.ChannelN.processAsync(ChannelN.java:346) ~[amqp-client-5.1.2.jar!/:5.1.2]
at com.rabbitmq.client.impl.AMQChannel.handleCompleteInboundCommand(AMQChannel.java:178) ~[amqp-client-5.1.2.jar!/:5.1.2]
at com.rabbitmq.client.impl.AMQChannel.handleFrame(AMQChannel.java:111) ~[amqp-client-5.1.2.jar!/:5.1.2]
at com.rabbitmq.client.impl.AMQConnection.readFrame(AMQConnection.java:643) ~[amqp-client-5.1.2.jar!/:5.1.2]
at com.rabbitmq.client.impl.AMQConnection.access$300(AMQConnection.java:47) ~[amqp-client-5.1.2.jar!/:5.1.2]
at com.rabbitmq.client.impl.AMQConnection$MainLoop.run(AMQConnection.java:581) ~[amqp-client-5.1.2.jar!/:5.1.2]
... 1 common frames omitted
问题出现原因：
因在RabbitMQ控制台新增了Queues队列信息，MQ初始化是会报异常
解决办法：
删除控制台 Queues ，让系统初始化自动生成
您必须删除队列并使用新属性重新创建它才能解决问题。 确保在删除之前排空该队列上的消息。
