1

使用这样的实体:

public class AccountId implements Serializable {
  private int a;
  private int b;

  // getters, setters, etc.
}

@Entity
@IdClass(AccountId.class)
public class Account implements Serializable {
  @Id
  private int a;
  @Id
  private int b;

  // getters, setters, etc.
}

是否可以使用复合键 ( AccountId) 编写标准 JPA 存储库:

public interface AccountRepository extends CrudRepository<Account, AccountId> {
  void findByCompositeIdAnd<some other conditions>(AccountId accountId, <other paramters>);
}

而不是关键组件(ab):

public interface AccountRepository extends CrudRepository<Account, AccountId> {
  void findByCompositeIdAnd<some other conditions>(int a, int b, <other paramters>);
}

我想避免使用@EmbeddedIdto 减少冗长或编写 custom @Query

4

0 回答 0