BeanCreationException春季自动装配

Question

org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'pcmProductOfferingService': Injection of autowired dependencies failed; nested exception is org.springframework.beans.factory.BeanCreationException: Could not autowire field: private com.bt.hqn.pcmservice.service.helper.ProductOfferingServiceHelper com.bt.hqn.pcmservice.service.impl.ProductOfferingServiceImpl.pcmServiceHelper; nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No matching bean of type [com.bt.hqn.pcmservice.service.helper.ProductOfferingServiceHelper] 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.postProcessPropertyValues(AutowiredAnnotationBeanPostProcessor.java:285) 
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1074) 
    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:291) 
    at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:222) 
    at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:288) 
    at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:190) 
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:580) 
    at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:895) 
    at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:425) 
    at org.springframework.web.context.ContextLoader.createWebApplicationContext(ContextLoader.java:276) 
    at org.springframework.web.context.ContextLoader.initWebApplicationContext(ContextLoader.java:197) 
    at org.springframework.web.context.ContextLoaderListener.contextInitialized(ContextLoaderListener.java:47) 
    at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:3934) 
    at org.apache.catalina.core.StandardContext.start(StandardContext.java:4429) 
    at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1045) 
    at org.apache.catalina.core.StandardHost.start(StandardHost.java:741) 
    at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1045) 
    at org.apache.catalina.core.StandardEngine.start(StandardEngine.java:443) 
    at org.apache.catalina.core.StandardService.start(StandardService.java:516) 
    at org.apache.catalina.core.StandardServer.start(StandardServer.java:710) 
    at org.apache.catalina.startup.Catalina.start(Catalina.java:587) 
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) 
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) 
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) 
    at java.lang.reflect.Method.invoke(Method.java:597) 
    at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:290) 
    at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:415) 
Caused by: org.springframework.beans.factory.BeanCreationException: Could not autowire field: private com.bt.hqn.pcmservice.service.helper.ProductOfferingServiceHelper com.bt.hqn.pcmservice.service.impl.ProductOfferingServiceImpl.pcmServiceHelper; nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No matching bean of type [com.bt.hqn.pcmservice.service.helper.ProductOfferingServiceHelper] 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$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:502) 
    at org.springframework.beans.factory.annotation.InjectionMetadata.inject(InjectionMetadata.java:84) 
    at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessPropertyValues(AutowiredAnnotationBeanPostProcessor.java:282) 
    ... 28 more 
Caused by: org.springframework.beans.factory.NoSuchBeanDefinitionException: No matching bean of type [com.bt.hqn.pcmservice.service.helper.ProductOfferingServiceHelper] 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.support.DefaultListableBeanFactory.raiseNoSuchBeanDefinitionException(DefaultListableBeanFactory.java:920) 
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:789) 
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:703) 
    at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:474) 
    ... 30 more 
Feb 23, 2012 12:44:10 PM org.apache.catalina.core.StandardContext listenerStart 
SEVERE: Exception sending context initialized event to listener instance of class com.bt.hqn.wlmsdemo.web.listener.PaymentMethodListener 
org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'pcmProductOfferingService': Injection of autowired dependencies failed; nested exception is org.springframework.beans.factory.BeanCreationException: Could not autowire field: private com.bt.hqn.pcmservice.service.helper.ProductOfferingServiceHelper com.bt.hqn.pcmservice.service.impl.ProductOfferingServiceImpl.pcmServiceHelper; nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No matching bean of type [com.bt.hqn.pcmservice.service.helper.ProductOfferingServiceHelper] 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.postProcessPropertyValues(AutowiredAnnotationBeanPostProcessor.java:285) 
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1074) 
    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:291) 
    at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:222) 
    at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:288) 
    at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:190) 
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:580) 
    at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:895) 
    at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:425) 
    at org.springframework.web.context.ContextLoader.createWebApplicationContext(ContextLoader.java:276) 
    at org.springframework.web.context.ContextLoader.initWebApplicationContext(ContextLoader.java:197) 
    at org.springframework.web.context.ContextLoaderListener.contextInitialized(ContextLoaderListener.java:47) 
    at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:3934) 
    at org.apache.catalina.core.StandardContext.start(StandardContext.java:4429) 
    at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1045) 
    at org.apache.catalina.core.StandardHost.start(StandardHost.java:741) 
    at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1045) 
    at org.apache.catalina.core.StandardEngine.start(StandardEngine.java:443) 
    at org.apache.catalina.core.StandardService.start(StandardService.java:516) 
    at org.apache.catalina.core.StandardServer.start(StandardServer.java:710) 
    at org.apache.catalina.startup.Catalina.start(Catalina.java:587) 
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) 
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) 
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) 
    at java.lang.reflect.Method.invoke(Method.java:597) 
    at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:290) 
    at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:415) 
Caused by: org.springframework.beans.factory.BeanCreationException: Could not autowire field: private com.bt.hqn.pcmservice.service.helper.ProductOfferingServiceHelper com.bt.hqn.pcmservice.service.impl.ProductOfferingServiceImpl.pcmServiceHelper; nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No matching bean of type [com.bt.hqn.pcmservice.service.helper.ProductOfferingServiceHelper] 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$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:502) 
    at org.springframework.beans.factory.annotation.InjectionMetadata.inject(InjectionMetadata.java:84) 
    at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessPropertyValues(AutowiredAnnotationBeanPostProcessor.java:282) 
    ... 28 more 
Caused by: org.springframework.beans.factory.NoSuchBeanDefinitionException: No matching bean of type [com.bt.hqn.pcmservice.service.helper.ProductOfferingServiceHelper] 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.support.DefaultListableBeanFactory.raiseNoSuchBeanDefinitionException(DefaultListableBeanFactory.java:920) 
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:789) 
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:703) 
    at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:474) 

Answer 1

所致：org.springframework.beans.factory.NoSuchBeanDefinitionException：类型[com.bt.hqn.pcmservice.service.helper.ProductOfferingServiceHelper]的无匹配豆发现依赖

Spring在上下文中找不到ProductOfferingServiceHelper类型的bean。你有一个名为pcmProductOfferingService的豆，它有：

@Autowired 
private ProductOfferingServiceHelper productOfferingServiceHelper; 

声明。确认：

1. 豆声明：

   在XML
   1. 使用<bean/>注释或
   2. 它标注了如@Service和封装com.bt.hqn.pcmservice.service.helper与<context:component-scan/>或
   3. 扫描是通过用@Bean注释的方法在@Configuration类返回

2. 它未声明或（即，通过两个上下文）中创建两次;应导致不同的错误信息，但以防万一

3. 它不是包裹在一个AOP代理（如@Transactional）

Answer 2

我的问题是，我是缺少上下文：组件扫描我的应用上下文。如果您正在进行自动布线，这非常重要。