org.springframework.beans.factory.NoSuchBeanDefinitionException: No unique bean of type [com.yuanv.b

最新推荐文章于 2022-11-01 22:57:27 发布
转载 最新推荐文章于 2022-11-01 22:57:27 发布 · 745 阅读 · 0

本文分析了一个关于Spring框架中出现的依赖注入失败的问题，详细解释了NoSuchBeanDefinitionException异常产生的原因，并提供了排查此类问题的基本思路。
严重: Exception sending context initialized event to listener instance of class org.springframework.web.context.ContextLoaderListener
org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'empRegisterAction': Injection of resource fields failed; nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No unique bean of type [com.yuanv.backstage.service.EmpRegisterService] is defined: Unsatisfied dependency of type [interface com.yuanv.backstage.service.EmpRegisterService]: expected at least 1 matching bean
at org.springframework.context.annotation.CommonAnnotationBeanPostProcessor.postProcessAfterInstantiation(CommonAnnotationBeanPostProcessor.java:292)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:959)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:472)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory$1.run(AbstractAutowireCapableBeanFactory.java:409)
at java.security.AccessController.doPrivileged(Native Method)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:380)
at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:264)
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:222)
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:261)
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:185)
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:164)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:429)
at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:728)
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:380)
at org.springframework.web.context.ContextLoader.createWebApplicationContext(ContextLoader.java:255)
at org.springframework.web.context.ContextLoader.initWebApplicationContext(ContextLoader.java:199)
at org.springframework.web.context.ContextLoaderListener.contextInitialized(ContextLoaderListener.java:45)
at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:4973)
at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5467)
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1559)
at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1549)
at java.util.concurrent.FutureTask.run(FutureTask.java:262)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
at java.lang.Thread.run(Thread.java:745)
Caused by: org.springframework.beans.factory.NoSuchBeanDefinitionException: No unique bean of type [com.yuanv.backstage.service.EmpRegisterService] is defined: Unsatisfied dependency of type [interface com.yuanv.backstage.service.EmpRegisterService]: expected at least 1 matching bean
at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:613)
at org.springframework.context.annotation.CommonAnnotationBeanPostProcessor.autowireResource(CommonAnnotationBeanPostProcessor.java:431)
at org.springframework.context.annotation.CommonAnnotationBeanPostProcessor.getResource(CommonAnnotationBeanPostProcessor.java:409)
at org.springframework.context.annotation.CommonAnnotationBeanPostProcessor$ResourceElement.getResourceToInject(CommonAnnotationBeanPostProcessor.java:537)
at org.springframework.beans.factory.annotation.InjectionMetadata$InjectedElement.inject(InjectionMetadata.java:180)
at org.springframework.beans.factory.annotation.InjectionMetadata.injectFields(InjectionMetadata.java:105)
at org.springframework.context.annotation.CommonAnnotationBeanPostProcessor.postProcessAfterInstantiation(CommonAnnotationBeanPostProcessor.java:289)
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帮我看看这段日志，cassandra连接正常了吗？这个报错是因为什么？ 2025-08-28 12:03:55.407 INFO 17536 --- [ main] c.t.n.d.b.BasicSpringBootApplication : Starting BasicSpringBootApplication on 18088172-BG with PID 17536 (E:\code\java\basic-spring-boot\target\classes started by admin in E:\code\java\basic-spring-boot) 2025-08-28 12:03:55.409 INFO 17536 --- [ main] c.t.n.d.b.BasicSpringBootApplication : No active profile set, falling back to default profiles: default 2025-08-28 12:03:55.824 INFO 17536 --- [ main] .s.d.r.c.RepositoryConfigurationDelegate : Multiple Spring Data modules found, entering strict repository configuration mode! 2025-08-28 12:03:55.825 INFO 17536 --- [ main] .s.d.r.c.RepositoryConfigurationDelegate : Bootstrapping Spring Data Reactive Cassandra repositories in DEFAULT mode. 2025-08-28 12:03:55.849 INFO 17536 --- [ main] .RepositoryConfigurationExtensionSupport : Spring Data Reactive Cassandra - Could not safely identify store assignment for repository candidate interface com.tplink.nbu.demo.basicspringboot.repository.MysqlUserRepository. If you want this repository to be a Reactive Cassandra repository, consider annotating your entities with one of these annotations: org.springframework.data.cassandra.core.mapping.Table (preferred), or consider extending one of the following types with your repository: org.springframework.data.cassandra.repository.ReactiveCassandraRepository. 2025-08-28 12:03:55.849 INFO 17536 --- [ main] .s.d.r.c.RepositoryConfigurationDelegate : Finished Spring Data repository scanning in 23ms. Found 0 Reactive Cassandra repository interfaces. 2025-08-28 12:03:55.851 INFO 17536 --- [ main] .s.d.r.c.RepositoryConfigurationDelegate : Multiple Spring Data modules found, entering strict repository configuration mode! 2025-08-28 12:03:55.851 INFO 17536 --- [ main] .s.d.r.c.RepositoryConfigurationDelegate : Bootstrapping Spring Data Cassandra repositories in DEFAULT mode. 2025-08-28 12:03:55.854 INFO 17536 --- [ main] .RepositoryConfigurationExtensionSupport : Spring Data Cassandra - Could not safely identify store assignment for repository candidate interface com.tplink.nbu.demo.basicspringboot.repository.MysqlUserRepository. If you want this repository to be a Cassandra repository, consider annotating your entities with one of these annotations: org.springframework.data.cassandra.core.mapping.Table (preferred), or consider extending one of the following types with your repository: org.springframework.data.cassandra.repository.CassandraRepository. 2025-08-28 12:03:55.861 INFO 17536 --- [ main] .s.d.r.c.RepositoryConfigurationDelegate : Finished Spring Data repository scanning in 10ms. Found 1 Cassandra repository interfaces. 2025-08-28 12:03:55.864 INFO 17536 --- [ main] .s.d.r.c.RepositoryConfigurationDelegate : Multiple Spring Data modules found, entering strict repository configuration mode! 2025-08-28 12:03:55.864 INFO 17536 --- [ main] .s.d.r.c.RepositoryConfigurationDelegate : Bootstrapping Spring Data JPA repositories in DEFAULT mode. 2025-08-28 12:03:55.869 INFO 17536 --- [ main] .RepositoryConfigurationExtensionSupport : Spring Data JPA - Could not safely identify store assignment for repository candidate interface com.tplink.nbu.demo.basicspringboot.repository.CassandraUserRepository. If you want this repository to be a JPA repository, consider annotating your entities with one of these annotations: javax.persistence.Entity, javax.persistence.MappedSuperclass (preferred), or consider extending one of the following types with your repository: org.springframework.data.jpa.repository.JpaRepository. 2025-08-28 12:03:55.873 INFO 17536 --- [ main] .s.d.r.c.RepositoryConfigurationDelegate : Finished Spring Data repository scanning in 7ms. 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Dependency annotations: {@org.springframework.beans.factory.annotation.Autowired(required=true), @org.springframework.beans.factory.annotation.Qualifier(value=mysqluserrepo)} 2025-08-28 12:03:59.386 INFO 17536 --- [ main] j.LocalContainerEntityManagerFactoryBean : Closing JPA EntityManagerFactory for persistence unit 'default' 2025-08-28 12:04:01.475 INFO 17536 --- [ main] com.zaxxer.hikari.HikariDataSource : HikariPool-1 - Shutdown initiated... 2025-08-28 12:04:01.481 INFO 17536 --- [ main] com.zaxxer.hikari.HikariDataSource : HikariPool-1 - Shutdown completed. 2025-08-28 12:04:01.482 INFO 17536 --- [ main] o.apache.catalina.core.StandardService : Stopping service [Tomcat] 2025-08-28 12:04:01.489 INFO 17536 --- [ main] ConditionEvaluationReportLoggingListener : Error starting ApplicationContext. 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