如何避免在发生意外错误时关闭SimpleMessageListenerContainer？

我正在使用Java boot 1.4.0和'spring-boot-starter-amqp'来连接到rabbitMq。消息制作者，消费者和rabbitMq服务器都在我的控制之下。在制作过程中，几个月的事情都很好。但突然我的消费者停止了下面给出的例外。由于我只生产总是有效的信息，我不知道哪里出了问题。如何避免在发生意外错误时关闭SimpleMessageListenerContainer？

但是这导致我的听者容器关闭。因此我的消息处理已停止。我不得不手动重新启动消息使用者程序。

所以我的问题是：

我们能否避免侦听器容器完全关闭任何意外情况？
是否有可能优雅地丢弃这样的消息并保持侦听器容器活着？
如果没有，那么我是否可以通过这些方法检查我的所有侦听器容器是否正在运行，如果我发现它们已经死了就启动它们？（注：我看着RabbitListenerEndpointRegistry.getListenerContainers（），但看起来它不包括SimpleMessageListenerContainer一样的容器。）

异常日志：

2017-02-20 12:42:18.441 ERROR 18014 --- [writeToDBQQueueListenerContainer-17] o.s.a.r.l.SimpleMessageListenerContainer : Consumer thread error, thread abort. 
 
java.lang.NoClassDefFoundError: org/springframework/messaging/handler/annotation/support/MethodArgumentNotValidException 
 
    at org.springframework.amqp.rabbit.listener.ConditionalRejectingErrorHandler$DefaultExceptionStrategy.causeIsFatal(ConditionalRejectingErrorHandler.java:110) ~[spring-rabbit-1.6.1.RELEASE.jar!/:na] 
 
    at org.springframework.amqp.rabbit.listener.ConditionalRejectingErrorHandler$DefaultExceptionStrategy.isFatal(ConditionalRejectingErrorHandler.java:97) ~[spring-rabbit-1.6.1.RELEASE.jar!/:na] 
 
    at org.springframework.amqp.rabbit.listener.ConditionalRejectingErrorHandler.handleError(ConditionalRejectingErrorHandler.java:72) ~[spring-rabbit-1.6.1.RELEASE.jar!/:na] 
 
    at org.springframework.amqp.rabbit.listener.AbstractMessageListenerContainer.invokeErrorHandler(AbstractMessageListenerContainer.java:625) ~[spring-rabbit-1.6.1.RELEASE.jar!/:na] 
 
    at org.springframework.amqp.rabbit.listener.AbstractMessageListenerContainer.handleListenerException(AbstractMessageListenerContainer.java:852) ~[spring-rabbit-1.6.1.RELEASE.jar!/:na] 
 
    at org.springframework.amqp.rabbit.listener.AbstractMessageListenerContainer.executeListener(AbstractMessageListenerContainer.java:685) ~[spring-rabbit-1.6.1.RELEASE.jar!/:na] 
 
    at org.springframework.amqp.rabbit.listener.SimpleMessageListenerContainer.doReceiveAndExecute(SimpleMessageListenerContainer.java:1165) ~[spring-rabbit-1.6.1.RELEASE.jar!/:na] 
 
    at org.springframework.amqp.rabbit.listener.SimpleMessageListenerContainer.receiveAndExecute(SimpleMessageListenerContainer.java:1149) ~[spring-rabbit-1.6.1.RELEASE.jar!/:na] 
 
    at org.springframework.amqp.rabbit.listener.SimpleMessageListenerContainer.access$1100(SimpleMessageListenerContainer.java:95) ~[spring-rabbit-1.6.1.RELEASE.jar!/:na] 
 
    at org.springframework.amqp.rabbit.listener.SimpleMessageListenerContainer$AsyncMessageProcessingConsumer.run(SimpleMessageListenerContainer.java:1312) ~[spring-rabbit-1.6.1.RELEASE.jar!/:na] 
 
    at java.lang.Thread.run(Thread.java:745) [na:1.8.0_91] 
 
Caused by: java.lang.ClassNotFoundException: org.springframework.messaging.handler.annotation.support.MethodArgumentNotValidException 
 
    at java.net.URLClassLoader.findClass(URLClassLoader.java:381) ~[na:1.8.0_91] 
 
    at java.lang.ClassLoader.loadClass(ClassLoader.java:424) ~[na:1.8.0_91] 
 
    at org.springframework.boot.loader.LaunchedURLClassLoader.loadClass(LaunchedURLClassLoader.java:89) ~[KattaQueueManager-0.0.1-SNAPSHOT.jar:0.0.1-SNAPSHOT] 
 
    at java.lang.ClassLoader.loadClass(ClassLoader.java:357) ~[na:1.8.0_91] 
 
    ... 11 common frames omitted

还有一例外：

2017-02-20 12:42:18.674 ERROR 18014 --- [imageQueueListenerContainer-53] o.s.a.r.l.SimpleMessageListenerContainer : Consumer thread error, thread abort. 
 

 
java.lang.NoClassDefFoundError: com/rabbitmq/utility/Utility 
 
     at org.springframework.amqp.rabbit.listener.BlockingQueueConsumer.checkShutdown(BlockingQueueConsumer.java:348) ~[spring-rabbit-1.6.1.RELEASE.jar!/:na] 
 
     at org.springframework.amqp.rabbit.listener.BlockingQueueConsumer.nextMessage(BlockingQueueConsumer.java:402) ~[spring-rabbit-1.6.1.RELEASE.jar!/:na] 
 
     at org.springframework.amqp.rabbit.listener.SimpleMessageListenerContainer.doReceiveAndExecute(SimpleMessageListenerContainer.java:1160) ~[spring-rabbit-1.6.1.RELEASE.jar!/:na] 
 
     at org.springframework.amqp.rabbit.listener.SimpleMessageListenerContainer.receiveAndExecute(SimpleMessageListenerContainer.java:1149) ~[spring-rabbit-1.6.1.RELEASE.jar!/:na] 
 
     at org.springframework.amqp.rabbit.listener.SimpleMessageListenerContainer.access$1100(SimpleMessageListenerContainer.java:95) ~[spring-rabbit-1.6.1.RELEASE.jar!/:na] 
 
     at org.springframework.amqp.rabbit.listener.SimpleMessageListenerContainer$AsyncMessageProcessingConsumer.run(SimpleMessageListenerContainer.java:1312) ~[spring-rabbit-1.6.1.RELEASE.jar!/:na] 
 
     at java.lang.Thread.run(Thread.java:745) [na:1.8.0_91] 
 
Caused by: java.lang.ClassNotFoundException: com.rabbitmq.utility.Utility 
 
     at java.net.URLClassLoader.findClass(URLClassLoader.java:381) ~[na:1.8.0_91] 
 
     at java.lang.ClassLoader.loadClass(ClassLoader.java:424) ~[na:1.8.0_91] 
 
     at org.springframework.boot.loader.LaunchedURLClassLoader.loadClass(LaunchedURLClassLoader.java:89) ~[KattaQueueManager-0.0.1-SNAPSHOT.jar:0.0.1-SNAPSHOT] 
 
     at java.lang.ClassLoader.loadClass(ClassLoader.java:357) ~[na:1.8.0_91] 
 
     ... 7 common frames omitted 
 

 
2017-02-20 12:42:18.675 ERROR 18014 --- [imageQueueListenerContainer-53] o.s.a.r.l.SimpleMessageListenerContainer : Stopping container from aborted consumer

我的消费者的示例代码：

@Bean 
public MessageConverter jsonMessageConverter(){ 
    //return new JsonMessageConverter(); 
    Jackson2JsonMessageConverter converter = new Jackson2JsonMessageConverter(); 

    converter.setClassMapper(new ClassMapper() { 
     @Override 
     public Class<?> toClass(MessageProperties properties) { 
      return String.class; 
     } 

     @Override 
     public void fromClass(Class<?> clazz, MessageProperties properties) { 
     } 
    }); 

    return converter; 
} 

@Bean 
public ConnectionFactory connectionFactory() 
{ 
    CachingConnectionFactory connectionFactory = 
      new CachingConnectionFactory(_rabbitmqHost, _rabbitmqPort); 
    return connectionFactory; 
} 

@Bean 
public RabbitTemplate rabbitTemplate() 
{ 
    RabbitTemplate rabbitTemplate = new RabbitTemplate(connectionFactory()); 
    rabbitTemplate.setMessageConverter(jsonMessageConverter()); 
    return rabbitTemplate; 
} 

@Bean 
TopicExchange exchange() 
{ 
    return new TopicExchange("MyExchange"); 
} 

@Bean 
public Queue mainQueue() 
{ 
    return new Queue("MyMainQ"); 
} 

@Bean 
public Binding mainRouteBinding() 
{ 
    return BindingBuilder.bind(mainQueue()).to(exchange()).with("MyMainQ"); 
} 

@Bean 
SimpleMessageListenerContainer mainQueueListenerContainer(
     ConnectionFactory connectionFactory, 
     @Qualifier("mainQueueListenerAdapter") MessageListenerAdapter listenerAdapter) 
{ 
    SimpleMessageListenerContainer container = new SimpleMessageListenerContainer(); 
    container.setConnectionFactory(connectionFactory); 
    container.setQueues(mainQueue()); 

    container.setMessageConverter(jsonMessageConverter()); 

    container.setMessageListener(listenerAdapter); 
    container.setConcurrentConsumers(1); 
    return container; 
} 

@Bean 
MessageListenerAdapter mainQueueListenerAdapter(MainConsumer receiver) 
{ 
    MessageListenerAdapter msgAdapter = new MessageListenerAdapter(receiver, "receiveMessage"); 

    msgAdapter.setMessageConverter(jsonMessageConverter()); 

    return msgAdapter; 
} 

@Bean 
MainConsumer getMainConsumer() 
{ 
    return new MainConsumer(); 
} 

// 
//The receiving method in MainConsumer class looks as given below 
public void receiveMessage(String message) 
{ 
    // My business logic goes here ... 
}

来源

2017-02-28 Amol Potnis

从堆栈跟踪看来，类路径中缺少少量类/ jar，检查它们是否存在/包含在类路径中 –

感谢评论Bond。它是一个完整的工作设置，运行几个月。绝对需要所有必需的组件/罐子。 –

okies ..你在日志中看到任何'ExceptionInInitializerError'吗？ –

几个月前我有同样的问题，这帮助了我。如果你的兔子Java客户端的版本早于4.0.0你不具备自动恢复连接，你需要设置，喜欢这里：

ConnectionFactory factory = new ConnectionFactory(); 
factory.setUsername(userName); 
factory.setPassword(password); 
factory.setVirtualHost(virtualHost); 
factory.setHost(hostName); 
factory.setPort(portNumber); 

// connection that will recover automatically 
factory.setAutomaticRecoveryEnabled(true); 

// attempt recovery every 10 seconds 
factory.setNetworkRecoveryInterval(10000); 

Connection conn = factory.newConnection();

尝试检查文档的RabbitMQ： Rabbit Client API

来源

2017-05-12 16:13:48 Brother

谢谢@兄弟。我正在使用Spring Boot 1.4.0发行版中的'spring-boot-starter-amqp'。据我了解，默认情况下，它具有主要的重新连接功能，可以处理基本连接丢失。所以在这方面大多没什么可配置的。 –

如何避免在发生意外错误时关闭SimpleMessageListenerContainer？

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