rabbitmq 进行连接时，报错，找不到

Question

警告: Unable to create rpc client
java.io.IOException

at com.rabbitmq.client.impl.AMQChannel.wrap(AMQChannel.java:105)
at com.rabbitmq.client.impl.AMQChannel.wrap(AMQChannel.java:101)
at com.rabbitmq.client.impl.AMQChannel.exnWrappingRpc(AMQChannel.java:123)
at com.rabbitmq.client.impl.ChannelN.exchangeDeclare(ChannelN.java:763)
at com.rabbitmq.client.impl.recovery.AutorecoveringChannel.exchangeDeclare(AutorecoveringChannel.java:237)
at com.rabbitmq.client.impl.recovery.AutorecoveringChannel.exchangeDeclare(AutorecoveringChannel.java:227)
at com.rabbitmq.client.impl.recovery.AutorecoveringChannel.exchangeDeclare(AutorecoveringChannel.java:207)
at com.rabbitmq.spring.remoting.RabbitInvokerClientInterceptor.createRpcClients(RabbitInvokerClientInterceptor.java:71)
at com.rabbitmq.spring.remoting.RabbitInvokerClientInterceptor.afterPropertiesSet(RabbitInvokerClientInterceptor.java:63)
at com.rabbitmq.spring.remoting.RabbitInvokerProxyFactoryBean.afterPropertiesSet(RabbitInvokerProxyFactoryBean.java:32)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1612)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1549)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:539)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:475)
at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:304)
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:228)
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:300)
at org.springframework.beans.factory.support.AbstractBeanFactory.getTypeForFactoryBean(AbstractBeanFactory.java:1420)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.getTypeForFactoryBean(AbstractAutowireCapableBeanFactory.java:788)
at org.springframework.beans.factory.support.AbstractBeanFactory.isTypeMatch(AbstractBeanFactory.java:543)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.doGetBeanNamesForType(DefaultListableBeanFactory.java:384)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.getBeanNamesForType(DefaultListableBeanFactory.java:361)
at org.springframework.beans.factory.BeanFactoryUtils.beanNamesForTypeIncludingAncestors(BeanFactoryUtils.java:187)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.findAutowireCandidates(DefaultListableBeanFactory.java:999)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:957)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:855)
at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:480)
at org.springframework.beans.factory.annotation.InjectionMetadata.inject(InjectionMetadata.java:87)
at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessPropertyValues(AutowiredAnnotationBeanPostProcessor.java:289)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1185)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:537)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:475)
at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:304)
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:228)
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:300)
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:195)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:700)
at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:760)
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:482)
at org.springframework.context.support.ClassPathXmlApplicationContext.<init>(ClassPathXmlApplicationContext.java:139)
at org.springframework.context.support.ClassPathXmlApplicationContext.<init>(ClassPathXmlApplicationContext.java:83)
at com.wugeek.ltc.business.wamp.Subscribe.<init>(Subscribe.java:36)
at com.wugeek.ltc.business.wamp.Subscribe.main(Subscribe.java:195)

Caused by: com.rabbitmq.client.ShutdownSignalException: channel error; protocol method: #method<channel.close>(reply-code=406, reply-text=PRECONDITION_FAILED - inequivalent arg 'auto_delete' for exchange 'ltc_business_Customer' in vhost '/': received 'false' but current is 'true', class-id=40, method-id=10)

at com.rabbitmq.utility.ValueOrException.getValue(ValueOrException.java:66)
at com.rabbitmq.utility.BlockingValueOrException.uninterruptibleGetValue(BlockingValueOrException.java:32)
at com.rabbitmq.client.impl.AMQChannel$BlockingRpcContinuation.getReply(AMQChannel.java:366)
at com.rabbitmq.client.impl.AMQChannel.privateRpc(AMQChannel.java:229)
at com.rabbitmq.client.impl.AMQChannel.exnWrappingRpc(AMQChannel.java:117)
... 40 more

Caused by: com.rabbitmq.client.ShutdownSignalException: channel error; protocol method: #method<channel.close>(reply-code=406, reply-text=PRECONDITION_FAILED - inequivalent arg 'auto_delete' for exchange 'ltc_business_Customer' in vhost '/': received 'false' but current is 'true', class-id=40, method-id=10)

at com.rabbitmq.client.impl.ChannelN.asyncShutdown(ChannelN.java:505)
at com.rabbitmq.client.impl.ChannelN.processAsync(ChannelN.java:336)
at com.rabbitmq.client.impl.AMQChannel.handleCompleteInboundCommand(AMQChannel.java:143)
at com.rabbitmq.client.impl.AMQChannel.handleFrame(AMQChannel.java:90)
at com.rabbitmq.client.impl.AMQConnection.readFrame(AMQConnection.java:634)
at com.rabbitmq.client.impl.AMQConnection.access$300(AMQConnection.java:47)
at com.rabbitmq.client.impl.AMQConnection$MainLoop.run(AMQConnection.java:572)
at java.lang.Thread.run(Unknown Source)

七月 19, 2017 7:59:36 下午 com.rabbitmq.spring.channel.RabbitChannelFactory createChannel
信息: Created channel nr. 1
七月 19, 2017 7:59:36 下午 com.rabbitmq.spring.remoting.RabbitInvokerClientInterceptor createRpcClients
警告: Unable to create rpc client

Answer 1

检查一下是不是在程序启动的时候去建立队列和Exchange了？看错误貌似是Rabbitmq服务器上已经存在同样名称的队列和exchange了，但是和你在程序里设置的属性不一样而引起的错误。如果确定在程序里有创建队列这一步了，把rabbitmq上已存在的队列和exchange删掉再试试。或者把已经存在的队列和exchange属性都改成一致的。

Answer 2

谢谢，我找到了错误。是，我们两边的rabbitmq的文件写的不同，我将文件修改了一下，全部都相同了，然后，将交换机和队列删除了以后，再启动服务就可以了