@Entity
public class TestClass implements Serializable{
private Integer id;
private Set<String> mySet;
@Id
@GeneratedValue
public Integer getId() {
return id;
}
@OnetoMany(cascade={CascadeType.ALL})
public Set<String> getMySet() {
return mySet;
}
}
我收到以下错误.
Caused by: org.hibernate.AnnotationException: Use of @OnetoMany or @ManyToMany targeting an unmapped class: TestClass.mySet[java.lang.String]
或者如果我离开@OnetoMany
org.hibernate.MappingException：无法确定：java.util.Set的类型,在表：test_class,对于列：[org.hibernate.mapping.Column(my_sets)]
解决方法
你会找到一个相当不错的答案
here.列表的规则也适用于集合.