问题启动rabbimq消费者端时报Caused by: org.springframework.amqp.rabbit.listener.QueuesNotAvailableException异常完整信息如下org.springframework.amqp.rabbit.listener.QueuesNotAvailableException: Cannot prepare queue for listener. Either the queue doesnt exist or the broker will not allow us to use it. at org.springframework.amqp.rabbit.listener.BlockingQueueConsumer.start(BlockingQueueConsumer.java:620) ~[spring-rabbit-2.0.4.RELEASE.jar:2.0.4.RELEASE] at org.springframework.amqp.rabbit.listener.SimpleMessageListenerContainer$AsyncMessageProcessingConsumer.run(SimpleMessageListenerContainer.java:996) ~[spring-rabbit-2.0.4.RELEASE.jar:2.0.4.RELEASE] at java.lang.Thread.run(Thread.java:748) [na:1.8.0_141] Caused by: org.springframework.amqp.rabbit.listener.BlockingQueueConsumer$DeclarationException: Failed to declare queue(s):[TestWorkQueue2] at org.springframework.amqp.rabbit.listener.BlockingQueueConsumer.attemptPassiveDeclarations(BlockingQueueConsumer.java:711) ~[spring-rabbit-2.0.4.RELEASE.jar:2.0.4.RELEASE] at org.springframework.amqp.rabbit.listener.BlockingQueueConsumer.start(BlockingQueueConsumer.java:588) ~[spring-rabbit-2.0.4.RELEASE.jar:2.0.4.RELEASE] ... 2 common frames omitted 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.queueDeclarePassive(ChannelN.java:991) ~[amqp-client-5.1.2.jar:5.1.2] at com.rabbitmq.client.impl.ChannelN.queueDeclarePassive(ChannelN.java:52) ~[amqp-client-5.1.2.jar:5.1.2] at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:1.8.0_141] at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[na:1.8.0_141] at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:1.8.0_141] at java.lang.reflect.Method.invoke(Method.java:498) ~[na:1.8.0_141] at org.springframework.amqp.rabbit.connection.CachingConnectionFactory$CachedChannelInvocationHandler.invoke(CachingConnectionFactory.java:991) ~[spring-rabbit-2.0.4.RELEASE.jar:2.0.4.RELEASE] at com.sun.proxy.$Proxy76.queueDeclarePassive(Unknown Source) ~[na:na] at org.springframework.amqp.rabbit.listener.BlockingQueueConsumer.attemptPassiveDeclarations(BlockingQueueConsumer.java:690) ~[spring-rabbit-2.0.4.RELEASE.jar:2.0.4.RELEASE] ... 3 common frames omitted Caused by: com.rabbitmq.client.ShutdownSignalException: channel error; protocol method: #methodchannel.close(reply-code404, reply-textNOT_FOUND - no queue TestWorkQueue2 in vhost /, class-id50, method-id10) 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] ... 12 common frames omitted Caused by: com.rabbitmq.client.ShutdownSignalException: channel error; protocol method: #methodchannel.close(reply-code404, reply-textNOT_FOUND - no queue TestWorkQueue2 in vhost /, class-id50, method-id10) 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原因这是因为不存在所监听的队列可以在可视化页面上查看目前所监听的队列是否存在。为什么不存在不是启动了生产者端注册了队列吗其实当启动生产者端注册队列时并没有马上注册队列而是等发送消息时才会注册。所以如果启动了生产者端后没有发送消息此时队列就不存在这个时候启动消费者端就会报上述异常。解决对应的解决方案有两种方式方式一启动生产者端后先调用接口发送消息到队列此时队列已经注册好了这个时候再启动消费者端即可方式二页面手动添加队列此时再启动消费者端即可