如何使用 Hibernate 調用 Oracle 存儲過程？

Question

下面是我的 Oracle 存儲過程，

create or replace 
PROCEDURE "REPORT_HIBERNATE"(
start_year IN NUMBER,
output_data OUT SYS_REFCURSOR
)
AS 
BEGIN
DECLARE 
select_query LONG;

BEGIN
select_query :='SELECT 
  GLOBAL_ID,
  PROJECT_NUMBER,
  FISCAL_YEAR,
  FISCAL_MONTH,
  WEEK_END_DATE,
  ACTIVITY,
  COST_CENTER,
  ACTUAL_HOURS,
  APPROVED_HOURS,
  NORMALIZED_HOURS
FROM TS_TBTIMECARD_WEEKLY_DATA
where FISCAL_YEAR in
(SELECT  FISCAL_YEAR        
FROM TS_TBTIMECARD_WEEKLY_DATA        
where      FISCAL_YEAR               = ' ||start_year|| '
 )';
OPEN output_data FOR select_query;
END;
END REPORT_HIBERNATE;

下面是實體類：

@Entity
@SequenceGenerator(name="wkseq", initialValue=1, allocationSize=1)
@Table(name = "TS_TBTIMECARD_WEEKLY_DATA")



@NamedNativeQuery(name = "call_REPORT_HIBERNATE_procedure",
query = "{ CALL REPORT_HIBERNATE(:start_year) }", 
resultClass = TimecardWeeklyData.class, hints = {
@javax.persistence.QueryHint(name = "org.hibernate.callable", value = "true") })



public class TimecardWeeklyData {
...
}

DAOImpl:

Query query = sessionFactory.getCurrentSession().getNamedQuery("call_REPORT_HIBERNATE_procedure");

        query.setParameter("start_year",2014); 
    List result = query.list();

我得到以下異常：Hibernate: { CALL REPORT_HIBERNATE(?) } org.hibernate.exception.GenericJDBCException: could not execute query ... and Caused by: java.sql.SQLException: Invalid column index

請讓我知道如何在 Spring 中使用 Hibernate Annotation 調用這個存儲過程？

Answer 1

考慮到您有一個SYS_REFCURSOR OUT 參數：

CREATE OR REPLACE PROCEDURE post_comments ( 
   postId IN NUMBER, 
   postComments OUT SYS_REFCURSOR ) 
AS 
BEGIN
    OPEN postComments FOR
    SELECT *
    FROM post_comment 
    WHERE post_id = postId; 
END;

您可以像這樣調用存儲過程：

StoredProcedureQuery query = entityManager
    .createStoredProcedureQuery("post_comments")
    .registerStoredProcedureParameter(1, Long.class, 
         ParameterMode.IN)
    .registerStoredProcedureParameter(2, Class.class, 
         ParameterMode.REF_CURSOR)
    .setParameter(1, 1L);
 
query.execute();
 
List<Object[]> postComments = query.getResultList();

Answer 2

您的OUT參數不是第一個。 如果您能夠修改您的過程，請重新排列參數以使OUT參數成為第一個參數，然后在您的@NamedNativeQuery注釋中對其進行說明。

query = "{ CALL REPORT_HIBERNATE(?, :start_year) }",