error creating bean with name "" Autowiring of fields failed

最新推荐文章于 2022-11-27 09:10:08 发布

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博客指出service类若缺少标注，会出现缺少唯一service bean的错误，如org.springframework.beans.factory.NoSuchBeanDefinitionException。给出的解决办法是在service类前加上标注，如@Service(\personnelService\)和@Transactional。

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service类上要有标注，否则会报下面的错。缺少唯一的一个serivce bean。

type Exception report

message

description The server encountered an internal error () that prevented it from fulfilling this request.

exception

Unable to instantiate Action, orgMgrAction,  defined for 'orgMgr' in namespace '/customer'Error creating bean with name 'orgMgrAction': Autowiring of fields failed; nested exception is org.springframework.beans.factory.BeanCreationException: Could not autowire field: private org.crm.service.personnel.PersonnelService org.crm.action.customer.orgMgrAction.personnelService; nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No unique bean of type [org.crm.service.personnel.PersonnelService] is defined: Unsatisfied dependency of type [class org.crm.service.personnel.PersonnelService]: expected at least 1 matching bean
	com.opensymphony.xwork2.DefaultActionInvocation.createAction(DefaultActionInvocation.java:306)
	com.opensymphony.xwork2.DefaultActionInvocation.init(DefaultActionInvocation.java:387)
	com.opensymphony.xwork2.DefaultActionProxy.prepare(DefaultActionProxy.java:186)
	org.apache.struts2.impl.StrutsActionProxy.prepare(StrutsActionProxy.java:61)

root cause

org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'orgMgrAction': Autowiring of fields failed; nested exception is org.springframework.beans.factory.BeanCreationException: Could not autowire field: private org.crm.service.personnel.PersonnelService org.crm.action.customer.orgMgrAction.personnelService; nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No unique bean of type [org.crm.service.personnel.PersonnelService] is defined: Unsatisfied dependency of type [class org.crm.service.personnel.PersonnelService]: expected at least 1 matching bean
	org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessAfterInstantiation(AutowiredAnnotationBeanPostProcessor.java:243)
	org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:959)
	org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:472)
	org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory$1.run(AbstractAutowireCapableBeanFactory.java:409)
	java.security.AccessController.doPrivileged(Native Method)

org.springframework.beans.factory.BeanCreationException: Could not autowire field: private org.crm.service.personnel.PersonnelService org.crm.action.customer.orgMgrAction.personnelService; nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No unique bean of type [org.crm.service.personnel.PersonnelService] is defined: Unsatisfied dependency of type [class org.crm.service.personnel.PersonnelService]: expected at least 1 matching bean
org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:435)
org.springframework.beans.factory.annotation.InjectionMetadata.injectFields(InjectionMetadata.java:105)

org.springframework.beans.factory.NoSuchBeanDefinitionException: No unique bean of type [org.crm.service.personnel.PersonnelService] is defined: Unsatisfied dependency of type [class org.crm.service.personnel.PersonnelService]: expected at least 1 matching bean
org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:613)
org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor

解决办法：在service类的前面加上标注。

@Service("personnelService")
@Transactional
public class PersonnelService {

。。。。。。。。

}