我正在连接到 oracle 数据库。我刚刚解决了依赖问题(在以下网址中有所需的代码,如存储库、实体等):
spring-data-jpa 1.11.16 带游标的存储过程 https://stackoverflow.com/questions/53723913/spring-data-jpa-1-11-16-stored-procedure-with-cursor/53724604?noredirect=1#comment94307213_53724604
现在,当我调用存储库时,我遇到了强制转换异常的问题。
存储库向我发回了仅转发结果集的列表,但我无法映射我的结果。
这就是错误:
Cannot cast 'oracle.jdbc.driver.ForwardOnlyResultSet' to 'procedure.entity.PocRegions'
我的oracle pl/sql过程是这样的:
PROCEDURE PRO_RETURN_REGION(
id_region IN POC_REGIONS.REGION_ID%TYPE,
o_cursor OUT SYS_REFCURSOR) is
BEGIN
--Opening the cursor to return matched rows
open o_cursor for
select *
from POC_REGIONS
where POC_REGIONS.REGION_ID = id_region;
END PRO_RETURN_REGION;
然后我尝试不使用 jpa 调用和 spring-data-jpa 调用来实现调用:
StoredProcedureQuery query = entityManager.createStoredProcedureQuery( "POC_PKG_GEO.PRO_RETURN_REGION");
query.registerStoredProcedureParameter("id_region", BigDecimal.class, ParameterMode.IN);
query.registerStoredProcedureParameter("o_cursor", void.class, ParameterMode.REF_CURSOR);
query.setParameter("id_region", id);
query.execute();
//Contains a forwardonlyreswultset (jpa call)
Object res = query.getOutputParameterValue("o_cursor");
//Contains an array of 2 Object not mapped (jpa call)
List<PocRegions> resultList = query.getResultList();
//Contains a forwardonlyreswultset (spring-data-jpa call)
List<PocRegions> region = geoRegionRepo.getRegion(id);
我应该如何将检索到的值转换/映射到我的实体?
谢谢