如何在 Hibernate 中持久化字符串列表?
我似乎在 Hibernate 中映射列表时遇到问题.在我们的项目中,有一个类 Card,其中包含一个类 Answer,其中 Answer 包含一个 List<String>.
I seem to have problems with mapping a List in Hibernate. In our project there a class Card with contains a class Answer with Answer containing a List<String>.
List<String> 是否可以被 Hibernate 使用注解映射?我的意思是,因为它没有 @Entity 注释?
Is a List<String> mappable by Hibernate using annotations? I mean, since it does not have the @Entity annotation?
问候
推荐答案
使用@ElementCollection:
@ElementCollection
@CollectionTable(name="Nicknames", joinColumns=@JoinColumn(name="user_id"))
@Column(name="nickname")
public List<String> getNicknames() { ... }
来源: 7.2.3.基本类型和可嵌入对象的集合
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