Collection has neither generic type or OneToMany.targetEntity() defined

Collection has neither generic type or OneToMany.targetEntity() defined:

如出现类似以下异常：

org.hibernate.AnnotationException: Collection has neither generic type or OneToMany.targetEntity() defined: org.svse.org.model.Order.orderItems

请检查orderItems这个属性是否使用了泛型,如:Set<OrderItem>.

如果未使用泛型,请在OneToMany注释中使用targetEntity指定元素的类型