Question

我不知道为什么当我想使用spring beans测试我的应用程序这个主要测试时出现此错误：公共课测试{

public static void main(String[] args) {
    ClassPathXmlApplicationContext context=
    new ClassPathXmlApplicationContext(new String[]  
    {"applicationContext.xml"});
    IBanqueMetier metier=(IBanqueMetier) context.getBean("metier");
    metier.addClient(new Client("C1", "AD1"));
    metier.addClient(new Client("C2", "AD2"));
}

这是第一个错误：

Exception in thread   "main"org.springframework.beans.factory.BeanCreationException:
      Error creating bean with name 'dao': Injection of persistence dependencies

failed; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'entityManagerFactory' defined in class path resource [applicationContext.xml]: Invocation of init method failed; nested exception is org.hibernate.AnnotationException: Illegal attempt to map a non collection as a @OneToMany, @ManyToMany or @CollectionOfElements: org.gestion.bp.entities.Compte.employe
at org.springframework.orm.jpa.support.PersistenceAnnotationBeanPostProcessor.postProcessPropertyValues(PersistenceAnnotationBeanPostProcessor.java:342)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1106)
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:294)
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:225)
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:291)
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:193)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:585)
at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:913)
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:464)
at org.springframework.context.support.ClassPathXmlApplicationContext.<init>(ClassPathXmlApplicationContext.java:139)
at org.springframework.context.support.ClassPathXmlApplicationContext.<init>(ClassPathXmlApplicationContext.java:93)

Answer 1

对于Spring例外，从最后开始阅读整个消息非常重要。我通常将消息分成几行以使其更具可读性：

Exception in thread   "main"org.springframework.beans.factory.BeanCreationException:
Error creating bean with name 'dao': Injection of persistence dependencies failed;
nested exception is org.springframework.beans.factory.BeanCreationException:
Error creating bean with name 'entityManagerFactory' defined in class path resource [applicationContext.xml]:
Invocation of init method failed;
nested exception is org.hibernate.AnnotationException:
Illegal attempt to map a non collection as a @OneToMany, @ManyToMany or @CollectionOfElements:
org.gestion.bp.entities.Compte.employe

如您所见，您在字段org.gestion.bp.entities.Compte.employe

的定义中出错

创建名为'dao'的bean时出错

1 个答案: