Error creating bean with name 'memberController'

解决Spring依赖注入失败

最新推荐文章于 2025-01-10 17:19:14 发布

原创最新推荐文章于 2025-01-10 17:19:14 发布 · 1.3k 阅读

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本文详细解析了在Spring框架中因实现类与接口不匹配导致的依赖注入失败问题，通过调整实现类继承自正确接口，成功解决了MemberController无法创建的问题。

不能够创建 MemberController 这个注解的属性也加了@Autowired(required = false) 但是不能解决问题，我有看了一下，service controller repository的注解都加了！！！接着我发现我的service实现的是memberDao
public class MemberServiceImpl implements MemberDao 应该写成
public class MemberServiceImpl implements MemberService 这就很难受了。



org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'memberController': Unsatisfied dependency expressed through field 'memberService'; nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type 'com.smx.ssm.service.MemberService' available: expected at least 1 bean which qualifies as autowire candidate. Dependency annotations: {@org.springframework.beans.factory.annotation.Autowired(required=true)}
    	at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:586)
    	at org.springframework.beans.factory.annotation.InjectionMetadata.inject(InjectionMetadata.java:91)
    	at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessPropertyValues(AutowiredAnnotationBeanPostProcessor.java:372)
    	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1344)
    	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:582)
    	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:502)
    	at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:312)
    	at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:228)
    	at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:310)
    	at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:200)
    	at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:758)
    	at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:868)
    	at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:549)
    	at org.springframework.web.servlet.FrameworkServlet.configureAndRefreshWebApplicationContext(FrameworkServlet.java:676)
    	at org.springframework.web.servlet.FrameworkServlet.createWebApplicationContext(FrameworkServlet.java:642)
    	at org.springframework.web.servlet.FrameworkServlet.createWebApplicationContext(FrameworkServlet.java:690)
    	at org.springframework.web.servlet.FrameworkServlet.initWebApplicationContext(FrameworkServlet.java:558)
    	at org.springframework.web.servlet.FrameworkServlet.initServletBean(FrameworkServlet.java:499)
    	at org.springframework.web.servlet.HttpServletBean.init(HttpServletBean.java:172)