org.springframework.beans.factory.NoSuchBeanDefinitionException: No matching解决方案

最新推荐文章于 2021-04-08 20:49:14 发布

iteye_6807

最新推荐文章于 2021-04-08 20:49:14 发布

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在使用Spring-MVC框架与iBatis进行数据库操作时，遇到DAO类注入失败的问题。通过检查配置文件发现遗漏了新添加的DAO类定义，导致注入失败。解决方法是在配置文件中补充遗漏的DAO类定义，重新启动项目后问题得以解决。

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今天写一个接口，所有的都写完了后来测试。整个项目是用spring-mvc的框架，使用ibatis做数据库层操作。

用jetty:run启动时老报错。

指向的是我的一个dao类bean找不到定义，我明明写了

@Autowired private ApiCouponPresentDao apiCouponPresentDao; 注入代码的呀，一直没想起来哪里有错。

错误信息是：

org.springframework.beans.factory.BeanCreationException: Error creating bean with name 

'apiWechatService': Injection of autowired dependencies failed; nested exception is 

org.springframework.beans.factory.BeanCreationException: Could not autowire field: private 

com.tongcard.api.services.ApiCouponService 

com.tongcard.api.services.impl.ApiWechatServiceImpl.apiCouponService; nested exception is 

org.springframework.beans.factory.BeanCreationException: Error creating bean with name 

'apiCouponService': Injection of autowired dependencies failed; nested exception is 

org.springframework.beans.factory.BeanCreationException: Could not autowire field: private 

com.tongcard.api.daos.ApiCouponPresentDao 

com.tongcard.api.services.impl.ApiCouponServiceImpl.apiCouponPresentDao; nested exception is 

org.springframework.beans.factory.NoSuchBeanDefinitionException: No matching bean of type 

[com.tongcard.api.daos.ApiCouponPresentDao] found for dependency: expected at least 1 bean 

which qualifies as autowire candidate for this dependency. Dependency annotations: 

{@org.springframework.beans.factory.annotation.Autowired(required=true)}
	at 

org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProces

sPropertyValues(AutowiredAnnotationBeanPostProcessor.java:287)
	at 

org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean

(AbstractAutowireCapableBeanFactory.java:1106)
	at 

org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean

(AbstractAutowireCapableBeanFactory.java:517)
	at 

org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean

(AbstractAutowireCapableBeanFactory.java:456)
	at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject

(AbstractBeanFactory.java:294)
	at 

org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton

(DefaultSingletonBeanRegistry.java:225)
	at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean

(AbstractBeanFactory.java:291)
	at org.springframework.beans.factory.support.AbstractBeanFactory.getBean

(AbstractBeanFactory.java:193)
	at 

org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingleton

s(DefaultListableBeanFactory.java:609)
	at 

org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitializati

on(AbstractApplicationContext.java:918)
	at org.springframework.context.support.AbstractApplicationContext.refresh

(AbstractApplicationContext.java:469)
	at 

org.springframework.web.context.ContextLoader.configureAndRefreshWebApplicationContext

(ContextLoader.java:383)
	at org.springframework.web.context.ContextLoader.initWebApplicationContext

(ContextLoader.java:283)
	at org.springframework.web.context.ContextLoaderListener.contextInitialized

(ContextLoaderListener.java:111)
	at org.eclipse.jetty.server.handler.ContextHandler.callContextInitialized

(ContextHandler.java:672)
	at org.eclipse.jetty.servlet.ServletContextHandler.callContextInitialized

(ServletContextHandler.java:403)
	at org.eclipse.jetty.server.handler.ContextHandler.startContext

(ContextHandler.java:664)

后来查找其他的类似引用的bean,搜索后发现在spring-biz.xml里面有配置，而这个类是我新加的，我忘记写上配置了。

于是在配置文件中加入这个新的dao的定义后，再启动就正常了。spring-mvc使用还不熟，不过这一点都忘记了的确不应该，记录一下。