实现一个spring数据仓库接口中的常规接口

Question

我正在使用一个扩展 spring 数据 JpaRepository 的存储库，并想让它扩展另一个接口。

以前，我的数据库存储库如下所示：

interface PublicTransportPricingZoneRepository : JpaRepository<PublicTransportPricingZone, Long> {

}

我现在创建了另一个接口TransitTicketRepo ，定义如下

interface TransitTicketRepo {
    fun findPossibleTickets(geometry: Geometry): Collection<TransitTicket>
}

现在想使用PublicTransportPricingZoneRepository中的默认方法实现接口。 我试图通过将 PublicTransportPricingZoneRepository 的代码更改为来解决这个问题

interface PublicTransportPricingZoneRepository : JpaRepository<PublicTransportPricingZone, Long>, TransitTicketRepo {
    fun findPossibleTickets(geometry: Geometry): Collection<TransitTicket> {
       // do something
       return emptyList()
    } 
}

但是在启动应用程序时收到以下错误消息。

org.springframework.data.repository.query.QueryCreationException: Could not create query for public abstract java.util.Collection PublicTransportPricingZoneRepository.findPossibleTickets(Geometry); Reason: Failed to create query for method public abstract java.util.Collection...

我假设解决方案是以某种方式告诉 spring 数据停止自动生成findPossibleTickets的查询，但一直无法找出如何。

Answer 1

你可以这样做

简而言之。：

@Repository
// Your bean that will be glued together by spring
interface PublicTransportPricingZoneRepository extends JpaRepository<...>, PublicTransportPricingZoneCustomRepository {
  // Other methods, but everything must be annotated with @Query or possible for spring to guess what it needs to do from its name (google derived methods)
}

interface PublicTransportPricingZoneCustomRepository {
  // define custom methods
  List<String> nameIsNotImportant();
}

@Service
// naming here is important - it must be names as interface + Impl, otherwise spring won't pick it up
// apart from that, it's a regular bean - you can Autowire, etc
class PublicTransportPricingZoneCustomRepositoryImpl implementats PublicTransportPricingZoneCustomRepository {
  // Implement custom methods
  @Overridden
  public List<String> nameIsNotImportant() {
    // impl
  }
}