spring 找不到实现类（No qualifying bean of type）

zhang80718 2015-08-26 10:50:02
本来以前是好用的，后来，修改在bit包上，又加了一个包，就出错误了，现在改回去，也不好用了。

action 部分


package dyna.web.code.Bit;

@Scope("prototype")

@Controller

public class BitAction extends BaseAction implements ModelDriven<BitBean> {



	@Autowired

	private BitService bitService;

}


接口部分


package dyna.web.code.Bit;

public interface BitService {

	

	

	public List<Fd_Bit> getList(int s,int t);

	

	public int getCount();

	

	

}


接口实现部分


package dyna.web.code.Bit.Impl;

@Service

public class BitServiceImpl implements BitService{



	@Autowired

	private BitMapper bitMapper;

	

	public List<Fd_Bit> getList(int s,int t){

		//

	}

	

	public int getCount(){

		//

	}

	

	

}


配置文件部分


   <context:component-scan base-package="dyna.web" use-default-filters="false">  

        <context:include-filter type="annotation" expression="org.springframework.stereotype.Service" />

        <context:include-filter type="annotation" expression="org.springframework.stereotype.Controller" />

        <context:include-filter type="annotation" expression="org.springframework.stereotype.Component" />

    </context:component-scan>


异常部分





Unable to instantiate Action, bitAction,  defined for 'bit' in namespace '/'Error creating bean with name 'bitAction': Injection of autowired dependencies failed; nested exception is org.springframework.beans.factory.BeanCreationException: Could not autowire field: private dyna.web.code.Bit.BitService dyna.web.code.Bit.BitAction.bitService; nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type [dyna.web.code.Bit.BitService] 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), @org.springframework.beans.factory.annotation.Qualifier(value=bitService)}

	com.opensymphony.xwork2.DefaultActionInvocation.createAction(DefaultActionInvocation.java:316)

	com.opensymphony.xwork2.DefaultActionInvocation.init(DefaultActionInvocation.java:397)

	com.opensymphony.xwork2.DefaultActionProxy.prepare(DefaultActionProxy.java:194)

	org.apache.struts2.impl.StrutsActionProxy.prepare(StrutsActionProxy.java:63)

	org.apache.struts2.impl.StrutsActionProxyFactory.createActionProxy(StrutsActionProxyFactory.java:39)

	com.opensymphony.xwork2.DefaultActionProxyFactory.createActionProxy(DefaultActionProxyFactory.java:58)

	org.apache.struts2.dispatcher.Dispatcher.serviceAction(Dispatcher.java:553)

	org.apache.struts2.dispatcher.ng.ExecuteOperations.executeAction(ExecuteOperations.java:77)

	org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter.doFilter(StrutsPrepareAndExecuteFilter.java:99)



root cause



org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'bitAction': Injection of autowired dependencies failed; nested exception is org.springframework.beans.factory.BeanCreationException: Could not autowire field: private dyna.web.code.Bit.BitService dyna.web.code.Bit.BitAction.bitService; nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type [dyna.web.code.Bit.BitService] 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), @org.springframework.beans.factory.annotation.Qualifier(value=bitService)}

	org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessPropertyValues(AutowiredAnnotationBeanPostProcessor.java:288)

	org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1116)

	org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:519)

	org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:458)

	org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:314)

	org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:194)

	org.springframework.context.support.AbstractApplicationContext.getBean(AbstractApplicationContext.java:1117)

	com.opensymphony.xwork2.spring.SpringObjectFactory.buildBean(SpringObjectFactory.java:151)

	com.opensymphony.xwork2.ObjectFactory.buildBean(ObjectFactory.java:151)

	com.opensymphony.xwork2.ObjectFactory.buildAction(ObjectFactory.java:121)

	com.opensymphony.xwork2.DefaultActionInvocation.createAction(DefaultActionInvocation.java:297)

	com.opensymphony.xwork2.DefaultActionInvocation.init(DefaultActionInvocation.java:397)

	com.opensymphony.xwork2.DefaultActionProxy.prepare(DefaultActionProxy.java:194)

	org.apache.struts2.impl.StrutsActionProxy.prepare(StrutsActionProxy.java:63)

	org.apache.struts2.impl.StrutsActionProxyFactory.createActionProxy(StrutsActionProxyFactory.java:39)

	com.opensymphony.xwork2.DefaultActionProxyFactory.createActionProxy(DefaultActionProxyFactory.java:58)

	org.apache.struts2.dispatcher.Dispatcher.serviceAction(Dispatcher.java:553)

	org.apache.struts2.dispatcher.ng.ExecuteOperations.executeAction(ExecuteOperations.java:77)

	org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter.doFilter(StrutsPrepareAndExecuteFilter.java:99)



root cause



org.springframework.beans.factory.BeanCreationException: Could not autowire field: private dyna.web.code.Bit.BitService dyna.web.code.Bit.BitAction.bitService; nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type [dyna.web.code.Bit.BitService] 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), @org.springframework.beans.factory.annotation.Qualifier(value=bitService)}

	org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:514)

	org.springframework.beans.factory.annotation.InjectionMetadata.inject(InjectionMetadata.java:87)

	org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessPropertyValues(AutowiredAnnotationBeanPostProcessor.java:285)

	org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1116)

	org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:519)

	org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:458)

	org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:314)

	org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:194)

	org.springframework.context.support.AbstractApplicationContext.getBean(AbstractApplicationContext.java:1117)

	com.opensymphony.xwork2.spring.SpringObjectFactory.buildBean(SpringObjectFactory.java:151)

	com.opensymphony.xwork2.ObjectFactory.buildBean(ObjectFactory.java:151)

	com.opensymphony.xwork2.ObjectFactory.buildAction(ObjectFactory.java:121)

	com.opensymphony.xwork2.DefaultActionInvocation.createAction(DefaultActionInvocation.java:297)

	com.opensymphony.xwork2.DefaultActionInvocation.init(DefaultActionInvocation.java:397)

	com.opensymphony.xwork2.DefaultActionProxy.prepare(DefaultActionProxy.java:194)

	org.apache.struts2.impl.StrutsActionProxy.prepare(StrutsActionProxy.java:63)

	org.apache.struts2.impl.StrutsActionProxyFactory.createActionProxy(StrutsActionProxyFactory.java:39)

	com.opensymphony.xwork2.DefaultActionProxyFactory.createActionProxy(DefaultActionProxyFactory.java:58)

	org.apache.struts2.dispatcher.Dispatcher.serviceAction(Dispatcher.java:553)

	org.apache.struts2.dispatcher.ng.ExecuteOperations.executeAction(ExecuteOperations.java:77)

	org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter.doFilter(StrutsPrepareAndExecuteFilter.java:99)



root cause



org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type [dyna.web.code.Bit.BitService] 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), @org.springframework.beans.factory.annotation.Qualifier(value=bitService)}

	org.springframework.beans.factory.support.DefaultListableBeanFactory.raiseNoSuchBeanDefinitionException(DefaultListableBeanFactory.java:986)

	org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:856)

	org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:768)

	org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:486)

	org.springframework.beans.factory.annotation.InjectionMetadata.inject(InjectionMetadata.java:87)

	org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessPropertyValues(AutowiredAnnotationBeanPostProcessor.java:285)

	org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1116)

	org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:519)

	org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:458)
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执笔记忆的空白 2015-08-27
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引用 3 楼 wi496481 的回复:
exclude 是struts的默认方法，当你不给定方法的时候，默认会走这个方法，事实上这个方法是不存在的
我还以为你实现了两次呢... 你们说的是execute 方法，还是 exclude....
迷林 2015-08-27
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exclude 是struts的默认方法，当你不给定方法的时候，默认会走这个方法，事实上这个方法是不存在的
zhang80718 2015-08-27
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问题解决了。实现类BitServiceImpl ，被我 exclude 了。既然 exclude 了。为啥eclipse也不报错呢？而且代码中能正常找到BitServiceImpl 这个类呢
kehua_gao 2015-08-27
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检查一下依赖关系，是否有循环依赖
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