Question

J2EE错误求助org.springframework.beans.factory.BeanCreationException: Error creating bean with...

org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'userService' defined in ServletContext resource [/WEB-INF/applicationContext.xml]: Initialization of bean failed; nested exception is org.springframework.beans.ConversionNotSupportedException: Failed to convert property value of type '$Proxy6 implementing cn.edu.qjnu.zhupicai.DAO.IUserDAO,org.springframework.beans.factory.InitializingBean,org.springframework.aop.SpringProxy,org.springframework.aop.framework.Advised' to required type 'cn.edu.qjnu.zhupicai.DAO.impl.UserDAO' for property 'userDAO'; nested exception is java.lang.IllegalStateException: Cannot convert value of type [$Proxy6 implementing cn.edu.qjnu.zhupicai.DAO.IUserDAO,org.springframework.beans.factory.InitializingBean,org.springframework.aop.SpringProxy,org.springframework.aop.framework.Advised] to required type [cn.edu.qjnu.zhupicai.DAO.impl.UserDAO] for property 'userDAO': no matching editors or conversion strategy found
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:527)
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)
........

Answer 1

spring配置xml时创建bean的时候出现了异常，主要是cn.edu.qjnu.zhupicai.DAO.impl.UserDAO这个类和cn.edu.qjnu.zhupicai.DAO.IUserDAO这个接口配置时出现了问题。能看看代码以及xml配置吗？