一次springboot扫描范围引起的启动报错

最新推荐文章于 2024-02-29 17:17:40 发布

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最新推荐文章于 2024-02-29 17:17:40 发布 · 1.3k 阅读

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本文讲述了在公司一套分布式Spring Alibaba架构系统中，由于边缘服务启动报错导致的问题。作者通过深入分析Spring Framework源码，发现了框架封装过度和依赖问题。在尝试解决BeanDefinition重复定义的问题时，发现是由于引入的CRM系统导致的冲突。最终，通过调整Maven依赖解决了问题。文章强调了在面对启动错误时，理解Spring Boot启动过程和BeanDefinition的重要性。

公司的框架出了问题，多个项目启动报错，花费了半天时间解决，多亏最近钻研springframework源码。

背景公司有一套分布式spring alibaba架构的系统，分为边缘服务，和服务池服务，服务治理一般，没有全局规划，半年前有外购一套分布式CRM系统，强行注册到一个服务中心，突然某个版本的多个边缘服务启动报错，导致测试停顿半天。

启动代码

@CanaryCloudApplication(applicationName = "b2b-consumer-edge", serverServletContextPath = "/consumer") //框架注解
@EnableSwagger2
@EnableFeignClients(basePackages = {
   
   "com.vd.canary.**","com.kakarote.crm.api.**"})
public class ConsumerEdgeApplication {
   
   
    public static void main(String[] args) {
   
   
        CanaryApplication.run(ConsumerEdgeApplication.class, args);
    }
}

这里分析一下公司封装的框架，高度概括的看法就是“唬人”，优秀的框架检验标准就是实用，开发人员友好，不隐藏细节。

公司框架希望高度封装，让普通开发只是写调用接口，先不说业务如此复杂，框架的做到高度封装恐怕只是外包行业，比较人员水平低，不灵活，长期针对某一种产品，对于快速多变的互联网行业，框架需要保持灵活多变。

报错信息


WARNING: An illegal reflective access operation has occurred
WARNING: Illegal reflective access by org.codehaus.groovy.vmplugin.v7.Java7$1 (file:/D:/apache-maven-3.0.4/maven_repository/org/codehaus/groovy/groovy/2.5.9/groovy-2.5.9.jar) to constructor java.lang.invoke.MethodHandles$Lookup(java.lang.Class,int)
WARNING: Please consider reporting this to the maintainers of org.codehaus.groovy.vmplugin.v7.Java7$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
 _____ _________  ___       _____ 
/  __ \| ___ \  \/  |      /  __ \
| /  \/| |_/ / .  . |______| /  \/
| |    |    /| |\/| |______| |    
| \__/\| |\ \| |  | |      | \__/\
 \____/\_| \_\_|  |_/       \____/

[b2b-consumer-edge:172.16.26.41:8456] 2021-07-28 14:16:25.671 WARN 7996 [] [main] com.alibaba.cloud.nacos.client.NacosPropertySourceBuilder : Ignore the empty nacos configuration and get it based on dataId[b2b-consumer-edge-dev_bb.yaml] & group[DEFAULT_GROUP]
[b2b-consumer-edge:172.16.26.41:8456] 2021-07-28 14:16:25.672 INFO 7996 [] [main] org.springframework.cloud.bootstrap.config.PropertySourceBootstrapConfiguration : Located property source: [BootstrapPropertySource {
   
   name='bootstrapProperties-b2b-consumer-edge-dev_bb.yaml,DEFAULT_GROUP'}, BootstrapPropertySource {
   
   name='bootstrapProperties-b2b-consumer-edge.yaml,DEFAULT_GROUP'}, BootstrapPropertySource {
   
   name='bootstrapProperties-b2b-consumer-edge,DEFAULT_GROUP'}, BootstrapPropertySource {
   
   name='bootstrapProperties-crm-c-core.yaml,DEFAULT_GROUP'}]
[b2b-consumer-edge:172.16.26.41:9010] 2021-07-28 14:16:25.700 INFO 7996 [] [main] com.vd.canary.b2b.edge.consumer.ConsumerEdgeApplication : The following profiles are active: dev_bb
[b2b-consumer-edge:172.16.26.41:9010] 2021-07-28 14:16:29.122 WARN 7996 [] [main] org.springframework.boot.web.servlet.context.AnnotationConfigServletWebServerApplicationContext : Exception encountered during context initialization - cancelling refresh attempt: org.springframework.beans.factory.support.BeanDefinitionOverrideException: Invalid bean definition with name 'fileBillFeignClient.FeignClientSpecification' defined in null: Cannot register bean definition [Generic bean: class [org.springframework.cloud.openfeign.FeignClientSpecification]; scope=; abstract=false; lazyInit=null; autowireMode=0; dependencyCheck=0; autowireCandidate=true; primary=false; factoryBeanName=null; factoryMethodName=null; initMethodName=null; destroyMethodName=null] for bean 'fileBillFeignClient.FeignClientSpecification': There is already [Generic bean: class [org.springframework.cloud.openfeign.FeignClientSpecification]; scope=; abstract=false; lazyInit=null; autowireMode=0; dependencyCheck=0; autowireCandidate=true; primary=false; factoryBeanName=null; factoryMethodName=null; initMethodName=null; destroyMethodName=null] bound.
[b2b-consumer-edge:172.16.26.41:9010] 2021-07-28 14:16:29.131 INFO 7996 [] [main] org.springframework.boot.autoconfigure.logging.ConditionEvaluationReportLoggingListener : 

Error starting ApplicationContext. To display the conditions report re-run your application with 'debug' enabled.
[b2b-consumer-edge:172.16.26.41:9010] 2021-07-28 14:16:29.137 DEBUG 7996 [] [main] org.springframework.boot.diagnostics.LoggingFailureAnalysisReporter : Application failed to start due to an exception

org.springframework.beans.factory.support.BeanDefinitionOverrideException: Invalid bean definition with name 'fileBillFeignClient.FeignClientSpecification' defined in null: Cannot register bean definition [Generic bean: class [org.springframework.cloud.openfeign.FeignClientSpecification]; scope=; abstract=false; lazyInit=null; autowireMode=0; dependencyCheck=0; autowireCandidate=true; primary=false; factoryBeanName=null; factoryMethodName=null; initMethodName=null; destroyMethodName=null] for bean 'fileBillFeignClient.FeignClientSpecification': There is already [Generic bean: class [org.springframework.cloud.openfeign.FeignClientSpecification]; scope=; abstract=false; lazyInit=null; autowireMode=0; dependencyCheck=0; autowireCandidate=true; primary=false; factoryBeanName=null; factoryMethodName