带有SqlResultSetMapping和本机查询的JPA数据存储库

Question

@SqlResultSetMapping(
    name = "findAllDataMapping",
    classes = @ConstructorResult(
            targetClass = MyVO.class,
            columns = {
                    @ColumnResult(name = "userFirstName"),
                    @ColumnResult(name = "userLastName"),
                    @ColumnResult(name = "id"),
                    @ColumnResult(name = "packageName")
            }
    )
)

@NamedNativeQuery(name = "findAllDataMapping",
    query = "SELECT " +
            "    u.first_name as userFirstName, " +
            "    u.last_name as userLastName, " +
            "    i.id as id, " +
            "    s.title as packageName, " +
            "FROM " +
            "    invoice as i " +
            "JOIN user as u on i.user_id=u.id " +
            "LEFT JOIN subscription_package as s on i.subscription_package_id=s.id " +
            "where  u.param1=:param1 and i.param2=:param2" +
)

public class MyVO {
    private String userFirstName;
    private String userLastName;
    private Long id;
    private String packageName;

    public MyVO (String userFName, String userLName,
            Long id, String packageName) {
        this.userFirstName = userFName;
        this.userLastName = userLName;
        this.id = id;
        this.packageName = packageName;
    }

    // getters & setters
}

public interface MyRepository extends JpaRepository<MyEntity, Long> {
    List<MyVO> findAllOfMyVO(@Param("param1") String param1, @Param("param2") String param2);
}

org.springframework.data.mapping.PropertyReferenceException: No property findAllOfMyVO found for type MyEntity!

Answer 1

添加缺少的resultClass

@NamedNativeQuery(name = "findAllDataMapping", resultClass = Entity.class, query="sql")

或

@NamedNativeQuery(name = "findAllDataMapping", resultClass = MyVO.class, resultSetMapping ="findAllDataMapping" query = "sql")

最后调用存储库中的查询

@Query(nativeQuery = true, name = "findAllDataMapping")
List<MyVO> findAllOfMyVO(@Param("param1") String param1, @Param("param2") String param2);