无效的列类型〜将ArrayList <String>发送到pl / sql createdNameQuery

Question

这与我过去的问题有关。

我正在接收List<Employee>并从Employee对象中获取ID，然后将它们放入中，ArrayList<String>然后将其ArrayList作为参数发送给createdNameQuery。我收到无效的列类型sql异常。我在pl / sql开发人员中测试了查询，并返回了字段。我尝试通过在每个ID之间放置一个逗号并将其发送来建立ID字符串，但是我从该尝试中收到了异常。我很好奇我的查询设置不正确或数据发送不正确。

在我的存储库中的功能：

public List<RequestByRequester> getRequestsByRequesters(
        List<Employee> employeeList) 
        throws NoDataFoundException {

    List<String> idList = new ArrayList<String>();
    for(Employee emp : employeeList) {          
        idList.add(emp.getId().toString());
    }

    log.debug("Input params[requesters=" + idList + "]");

    List<RequestByRequester> resultList = getEm().createNamedQuery(
            "requestByRequestor.getRequestsByRequesters", RequestByRequester.class)
            .setParameter(1,idList)
            .getResultList();

        if(resultList == null || resultList.size() <= 0)
            throw new NoDataFoundException("No requests found by requesters.");
        else
            return resultList;
}

我的命名查询requestByRequestor.getRequestsByRequesters如下：

   @NamedNativeQuery(
    name = "requestByRequestor.getRequestsByRequesters",
    resultClass = RequestByRequester.class,
    query = "SELECT EMP.EMPL_FIRST_NAME || ' ' || EMP.EMPL_LAST_NAME REQUESTER," +
            "       R.RQST_ID RQST_ID," +
            "       R.TITLE TITLE," +
            "       R.DESCRIPTION DESCRIPTION," +
            "       DECODE(R.RESOLUTION_DATE, NULL, 'Open', 'Closed') STATUS" +
            "  FROM TARTS.REQUESTS R, SYS_EMPLOYEES EMP" +
            " WHERE R.EMPL_ID_REQUESTED_BY = EMP.EMPL_ID" +
            "   AND EMP.EMPL_ID IN (?)" +
            " ORDER BY 1, 5 DESC, 2"
    )

编辑：根据要求添加例外。

:ids在查询中使用此异常时：

Internal Exception: java.sql.SQLException: Missing IN or OUT parameter at index:: 1 Error Code: 17041 Call: SELECT EMP.EMPL_FIRST_NAME || ' ' || EMP.EMPL_LAST_NAME REQUESTER, R.RQST_ID RQST_ID, R.TITLE TITLE, R.DESCRIPTION DESCRIPTION, DECODE(R.RESOLUTION_DATE, NULL, 'Open', 'Closed') STATUS FROM TARTS.REQUESTS R, SYS_EMPLOYEES EMP WHERE R.EMPL_ID_REQUESTED_BY = EMP.EMPL_ID AND EMP.EMPL_ID IN :ids ORDER BY 1, 5 DESC, 2 Query: ReadAllQuery(name="requestByRequestor.getRequestsByRequesters" referenceClass=RequestByRequester sql="SELECT EMP.EMPL_FIRST_NAME || ' ' || EMP.EMPL_LAST_NAME REQUESTER, R.RQST_ID RQST_ID, R.TITLE TITLE, R.DESCRIPTION DESCRIPTION, DECODE(R.RESOLUTION_DATE, NULL, 'Open', 'Closed') STATUS FROM TARTS.REQUESTS R, SYS_EMPLOYEES EMP WHERE R.EMPL_ID_REQUESTED_BY = EMP.EMPL_ID AND EMP.EMPL_ID IN :ids ORDER BY 1, 5 DESC, 2")

在查询中使用?1或时出现异常(?)：

Internal Exception: java.sql.SQLException: Invalid column type Error Code: 17004 Call: SELECT EMP.EMPL_FIRST_NAME || ' ' || EMP.EMPL_LAST_NAME REQUESTER, R.RQST_ID RQST_ID, R.TITLE TITLE, R.DESCRIPTION DESCRIPTION, DECODE(R.RESOLUTION_DATE, NULL, 'Open', 'Closed') STATUS FROM TARTS.REQUESTS R, SYS_EMPLOYEES EMP WHERE R.EMPL_ID_REQUESTED_BY = EMP.EMPL_ID AND EMP.EMPL_ID IN ? ORDER BY 1, 5 DESC, 2 bind => [[2192, 632]] Query: ReadAllQuery(name="requestByRequestor.getRequestsByRequesters" referenceClass=RequestByRequester sql="SELECT EMP.EMPL_FIRST_NAME || ' ' || EMP.EMPL_LAST_NAME REQUESTER, R.RQST_ID RQST_ID, R.TITLE TITLE, R.DESCRIPTION DESCRIPTION, DECODE(R.RESOLUTION_DATE, NULL, 'Open', 'Closed') STATUS FROM TARTS.REQUESTS R, SYS_EMPLOYEES EMP WHERE R.EMPL_ID_REQUESTED_BY = EMP.EMPL_ID AND EMP.EMPL_ID IN ? ORDER BY 1, 5 DESC, 2")

Answer 1

问题（我认为，因为您没有包含命名查询的定义）是您正在执行本机 SQL 查询，并且 List 不是有效的 SQL/JDBC 参数值。

EclipseLink 支持 JPQL 查询的列表参数，但不支持本机 SQL 查询。

您需要使用 JPQL，或者定义 SQL 中的每个参数

IE

EMP.EMPL_ID IN (:id1, :id2, :id3)

.setParameter("id1", idList.get(0));
.setParameter("id2", idList.get(1));