Question

spring文件配置报错

org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'personService' defined in ServletContext resource [/WEB-INF/classes/applicationContext.xml]: Cannot resolve reference to bean 'personDAOImpl' while setting bean property 'personDAO'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'personDAOImpl' defined in ServletContext resource [/WEB-INF/classes/applicationContext.xml]: Instantiation of bean failed; nested exception is org.springframework.beans.BeanInstantiationException: Could not instantiate bean class [com.oracle.daoImpl.PersonDAOImpl]: Constructor threw exception; nested exception is java.lang.NullPointerException
at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveReference(BeanDefinitionValueResolver.java:329)
at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveValueIfNecessary(BeanDefinitionValueResolver.java:107)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.applyPropertyValues(AbstractAutowireCapableBeanFactory.java:1387)

Answer 1

是不是<ref local="personDAOImpl"/>这句有问题呀？整个改成<property name="personDAO" ref="personDAOImpl"/></property> 亦或是没有在PersonServiceImpl 没有加personDAO的setter跟getter方法呀。

追问

都试过了，还是报错。不过还是谢谢。