spring-boot - 创建名称为 'rabbitListenerContainerFactory' 的 bean 时出错

Question

我有一个 Spring Boot 微服务:Zuul-api-gateway-server，我正在尝试实现一个 Zipkin 服务器，监听rabbitmq以在微服务内记录消息。

我已向此微服务添加以下依赖项:

<dependency>
        <groupId>org.springframework.cloud</groupId>
        <artifactId>spring-cloud-starter-sleuth-zipkin</artifactId>
    </dependency>
    <dependency>
        <groupId>org.springframework.amqp</groupId>
        <artifactId>spring-rabbit</artifactId>
    </dependency>

我已使用以下命令启动了 Zipkin 服务器:

设置 RABBIT_URI=amqp://localhost java -jar zipkin.jar

然后我尝试启动微服务，但出现以下错误:

org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'rabbitListenerContainerFactory' defined in class path resource [org/springframework/boot/autoconfigure/amqp/RabbitAnnotationDrivenConfiguration.class]: Initialization of bean failed; nested exception is java.lang.NullPointerException at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:584) ~[spring-beans-5.1.3.RELEASE.jar:5.1.3.RELEASE] at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:498) ~[spring-beans-5.1.3.RELEASE.jar:5.1.3.RELEASE] at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:320) ~[spring-beans-5.1.3.RELEASE.jar:5.1.3.RELEASE] at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:222) ~[spring-beans-5.1.3.RELEASE.jar:5.1.3.RELEASE] at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:318) ~[spring-beans-5.1.3.RELEASE.jar:5.1.3.RELEASE] at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:199) ~[spring-beans-5.1.3.RELEASE.jar:5.1.3.RELEASE] at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:846) ~[spring-beans-5.1.3.RELEASE.jar:5.1.3.RELEASE] at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:863) ~[spring-context-5.1.3.RELEASE.jar:5.1.3.RELEASE] at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:546) ~[spring-context-5.1.3.RELEASE.jar:5.1.3.RELEASE] at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.refresh(ServletWebServerApplicationContext.java:142) ~[spring-boot-2.1.1.RELEASE.jar:2.1.1.RELEASE] at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:775) [spring-boot-2.1.1.RELEASE.jar:2.1.1.RELEASE] at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:397) [spring-boot-2.1.1.RELEASE.jar:2.1.1.RELEASE] at org.springframework.boot.SpringApplication.run(SpringApplication.java:316) [spring-boot-2.1.1.RELEASE.jar:2.1.1.RELEASE] at org.springframework.boot.SpringApplication.run(SpringApplication.java:1260) [spring-boot-2.1.1.RELEASE.jar:2.1.1.RELEASE] at org.springframework.boot.SpringApplication.run(SpringApplication.java:1248) [spring-boot-2.1.1.RELEASE.jar:2.1.1.RELEASE] at com.shopping.sandbox.netflixzuulapigatewayserver.NetflixZuulApiGatewayServerApplication.main(NetflixZuulApiGatewayServerApplication.java:16) [classes/:na] at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:1.8.0_171] at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[na:1.8.0_171] at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:1.8.0_171] at java.lang.reflect.Method.invoke(Method.java:498) ~[na:1.8.0_171] at org.springframework.boot.devtools.restart.RestartLauncher.run(RestartLauncher.java:49) [spring-boot-devtools-2.1.1.RELEASE.jar:2.1.1.RELEASE] Caused by: java.lang.NullPointerException: null at org.springframework.amqp.rabbit.config.AbstractRabbitListenerContainerFactory.getAdviceChain(AbstractRabbitListenerContainerFactory.java:198) ~[spring-rabbit-2.1.2.RELEASE.jar:2.1.2.RELEASE] at brave.spring.rabbit.SpringRabbitTracing.decorateSimpleRabbitListenerContainerFactory(SpringRabbitTracing.java:170) ~[brave-instrumentation-spring-rabbit-5.4.4.jar:na] at org.springframework.cloud.sleuth.instrument.messaging.SleuthRabbitBeanPostProcessor.postProcessBeforeInitialization(TraceMessagingAutoConfiguration.java:186) ~[spring-cloud-sleuth-core-2.1.0.M2.jar:2.1.0.M2] at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.applyBeanPostProcessorsBeforeInitialization(AbstractAutowireCapableBeanFactory.java:419) ~[spring-beans-5.1.3.RELEASE.jar:5.1.3.RELEASE] at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1737) ~[spring-beans-5.1.3.RELEASE.jar:5.1.3.RELEASE] at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:576) ~[spring-beans-5.1.3.RELEASE.jar:5.1.3.RELEASE] ... 20 common frames omitted

Answer 1

由于Spring AMQP存在一个bug，将在2.1.3版本中修复 <强> Issue link

对于临时修复，您可以启用重试属性来创建建议链。

spring.rabbitmq.listener.direct.retry.enabled=true
spring.rabbitmq.listener.simple.retry.enabled=true

希望这能解决您的问题。