SpringBoot整合Rabbit中遇到的错误，SpringBoot无法启动。（IDEA 2020.1）

org.springframework.amqp.rabbit.listener.BlockingQueueConsumer$DeclarationException: Failed to declare queue(s):[confirm_exchange]
    at org.springframework.amqp.rabbit.listener.BlockingQueueConsumer.attemptPassiveDeclarations(BlockingQueueConsumer.java:721) ~[spring-rabbit-1.7.9.RELEASE.jar:na]
    at org.springframework.amqp.rabbit.listener.BlockingQueueConsumer.start(BlockingQueueConsumer.java:598) ~[spring-rabbit-1.7.9.RELEASE.jar:na]
    at org.springframework.amqp.rabbit.listener.SimpleMessageListenerContainer$AsyncMessageProcessingConsumer.run(SimpleMessageListenerContainer.java:1504) [spring-rabbit-1.7.9.RELEASE.jar:na]
    at java.lang.Thread.run(Thread.java:748) [na:1.8.0_131]
Caused by: java.io.IOException: null
    at com.rabbitmq.client.impl.AMQChannel.wrap(AMQChannel.java:105) ~[amqp-client-4.0.3.jar:4.0.3]
    at com.rabbitmq.client.impl.AMQChannel.wrap(AMQChannel.java:101) ~[amqp-client-4.0.3.jar:4.0.3]
    at com.rabbitmq.client.impl.AMQChannel.exnWrappingRpc(AMQChannel.java:123) ~[amqp-client-4.0.3.jar:4.0.3]
    at com.rabbitmq.client.impl.ChannelN.queueDeclarePassive(ChannelN.java:992) ~[amqp-client-4.0.3.jar:4.0.3]
    at com.rabbitmq.client.impl.ChannelN.queueDeclarePassive(ChannelN.java:50) ~[amqp-client-4.0.3.jar:4.0.3]
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:1.8.0_131]
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[na:1.8.0_131]
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:1.8.0_131]
    at java.lang.reflect.Method.invoke(Method.java:498) ~[na:1.8.0_131]
    at org.springframework.amqp.rabbit.connection.CachingConnectionFactory$CachedChannelInvocationHandler.invoke(CachingConnectionFactory.java:1027) ~[spring-rabbit-1.7.9.RELEASE.jar:na]
    at com.sun.proxy.$Proxy261.queueDeclarePassive(Unknown Source) ~[na:na]
    at org.springframework.amqp.rabbit.listener.BlockingQueueConsumer.attemptPassiveDeclarations(BlockingQueueConsumer.java:700) ~[spring-rabbit-1.7.9.RELEASE.jar:na]
    ... 3 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 'confirm_exchange' in vhost '/', class-id=50, method-id=10)
    at com.rabbitmq.utility.ValueOrException.getValue(ValueOrException.java:66) ~[amqp-client-4.0.3.jar:4.0.3]
    at com.rabbitmq.utility.BlockingValueOrException.uninterruptibleGetValue(BlockingValueOrException.java:32) ~[amqp-client-4.0.3.jar:4.0.3]
    at com.rabbitmq.client.impl.AMQChannel$BlockingRpcContinuation.getReply(AMQChannel.java:366) ~[amqp-client-4.0.3.jar:4.0.3]
    at com.rabbitmq.client.impl.AMQChannel.privateRpc(AMQChannel.java:229) ~[amqp-client-4.0.3.jar:4.0.3]
    at com.rabbitmq.client.impl.AMQChannel.exnWrappingRpc(AMQChannel.java:117) ~[amqp-client-4.0.3.jar:4.0.3]
    ... 12 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 'confirm_exchange' in vhost '/', class-id=50, method-id=10)
    at com.rabbitmq.client.impl.ChannelN.asyncShutdown(ChannelN.java:505) ~[amqp-client-4.0.3.jar:4.0.3]
    at com.rabbitmq.client.impl.ChannelN.processAsync(ChannelN.java:336) ~[amqp-client-4.0.3.jar:4.0.3]
    at com.rabbitmq.client.impl.AMQChannel.handleCompleteInboundCommand(AMQChannel.java:143) ~[amqp-client-4.0.3.jar:4.0.3]
    at com.rabbitmq.client.impl.AMQChannel.handleFrame(AMQChannel.java:90) ~[amqp-client-4.0.3.jar:4.0.3]
    at com.rabbitmq.client.impl.AMQConnection.readFrame(AMQConnection.java:634) ~[amqp-client-4.0.3.jar:4.0.3]
    at com.rabbitmq.client.impl.AMQConnection.access$300(AMQConnection.java:47) ~[amqp-client-4.0.3.jar:4.0.3]
    at com.rabbitmq.client.impl.AMQConnection$MainLoop.run(AMQConnection.java:572) ~[amqp-client-4.0.3.jar:4.0.3]
    ... 1 common frames omitted

1、从第一条信息看，说是找不到队列，后面又提到了IOException。看的头疼。

2、造成错误的原因是在配置文件中没有声明关于队列confirm_exchange的@Bean，在其中添加关即可。如果不添加在RabbitMQ  管理界面不会出现。

具体代码如下：

    //声明此队列
    @Bean
    public Queue confirm_exchange() {
        return new Queue("confirm_exchange");
    }

3、但在IDEA2020.1中，存在一些BUG,建议最好更换此版本，在IDEA2020.1中重新添加方可解决此问题。