如何在辅助表中的非主键列上联接表？

我能够找到解决方案。如果您像这样映射Bar类

@Entity@DiscriminatorValue("1")@SecondaryTable(name = "BAR", pkJoinColumns = { @PrimaryKeyJoinColumn(name = "FOO_ID", referencedColumnName = "FOO_ID") })public class Bar extends Foo {    @oneToOne    @JoinColumn(table = "BAR", name = "BAR_ID")    MiniBar miniBar;}

并添加以下类

@Entity@SqlResultSetMapping(name = "compositekey", entities = @EntityResult(entityClass = MiniBar.class, fields = { @FieldResult(name = "miniBar", column = "BAR_ID"), }))@NamedNativeQuery(name = "compositekey", query = "select BAR_ID from BAR", resultSetMapping = "compositekey")@Table(name = "BAR")public class MiniBar {    @Id    @Column(name = "BAR_ID")    Long barId;}

然后，您可以将想要的任何类型的映射添加到

MiniBar

Bar