org.springframework.beans.factory.NoSuchBeanDefinitionException：沒有名爲'eventpublisher'的bean可用

我有一個Spring Boot應用程序。我用@Component註解標註了一個項目的類。現在在我的主類中，當我試圖獲取類的bean時，我得到一個無法找到該bean的異常。org.springframework.beans.factory.NoSuchBeanDefinitionException：沒有名爲'eventpublisher'的bean可用

Exception in thread "main" [2m2017-05-08 09:53:55.303[0;39m [32m INFO[0;39m [35m9112[0;39m [2m---[0;39m [2m[  Thread-2][0;39m [36ms.c.a.AnnotationConfigApplicationContext[0;39m [2m:[0;39m Closing org.spring[email protected]4df828d7: startup date [Mon May 08 09:53:54 EDT 2017]; root of context hierarchy 
org.springframework.beans.factory.NoSuchBeanDefinitionException: No bean named 'eventpublisher' available 
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.getBeanDefinition(DefaultListableBeanFactory.java:687) 
    at org.springframework.beans.factory.support.AbstractBeanFactory.getMergedLocalBeanDefinition(AbstractBeanFactory.java:1207) 
    at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:284) 
    at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:197) 
    at org.springframework.context.support.AbstractApplicationContext.getBean(AbstractApplicationContext.java:1081) 
    at com.fannie.SpringEventGenerationJBsApplication.main(SpringEventGenerationJBsApplication.java:17)

我的類被註釋爲組分以下

@Component 
public class EventPublisher implements ApplicationEventPublisherAware { 
    @Autowired 
    private ApplicationEventPublisher publisher; 

    public void eventpublishers() { 
     ActualEvent actualEvent = new ActualEvent(this); 
     System.out.println(actualEvent); 
     publisher.publishEvent(actualEvent); 
    } 

    @Override 
    public void setApplicationEventPublisher(ApplicationEventPublisher publisher) { 
     this.publisher = publisher; 
    } 
}

@SpringBootApplication 
@ComponentScan(basePackages = {"com.fannie"}) 
public class SpringEventGenerationJBsApplication { 

    public static void main(String[] args) { 
     ApplicationContext context = SpringApplication.run(SpringEventGenerationJBsApplication.class, args); 

     EventPublisher ep = (EventPublisher) context.getBean("eventpublisher"); 

     ep.eventpublishers(); 
    }

來源

2017-05-08 DP3

Bean名稱是從小寫的第一個字符的類名生成的......所以'EventPublisher'將成爲'eventPublisher'而不是'eventpublisher'。 –

謝謝你的作品。非常感謝。 – DP3

@ M.Deinum也許你應該添加這個答案。你剛剛解決了我的問題，如果我能，至少，upvote你會很棒。 –

作爲記錄here

彈簧產生用於未命名的組件bean的名字，按照上述規則：基本上，服用簡單的類名和具有由組件的掃描所得到的bean名稱檢測將是eventPublisher一類EventPublisher時，轉動其初始字符小寫

所以。

來源

2017-09-22 09:26:39

org.springframework.beans.factory.NoSuchBeanDefinitionException：沒有名爲'eventpublisher'的bean可用

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