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为了学习使用 Oracle 存储过程的 Hibernate 4.1，我试图让一个示例尽可能简单地工作： 1. 没有传入参数 2. SYS_REFCURSOR 作为一个返回参数

我得到的是一个例外：“org.hibernate.exception.GenericJDBCException：无效的列索引”。在网上搜索几个小时来解决这个问题并没有多大帮助。

============================== 程序

CREATE OR REPLACE PROCEDURE IFC_OWNER.JPA_APPLICATION_R_TEST 
(    o_result_set OUT SYS_REFCURSOR  )
AS
BEGIN
    OPEN o_result_set FOR
    SELECT APPLICATION_ID, APP_COMMON_NM, APP_DESC, APP_URL FROM APPLICATION_R;
END;
/

============================== xml调用

<sql-query name="oracleproccall" callable="true">
    <return alias="application_r" class="com.myco.entities.ApplicationR"/>
    <![CDATA[ call JPA_APPLICATION_R_TEST() ]]>
</sql-query>

=============================java（调用sqlQuery.getResultList()时抛出异常）

public void run() {
EntityManager entityManager = entityManagerFactory.createEntityManager();
try {
    Query sqlQuery = entityManager.createNamedQuery("oracleproccall");
    List list = sqlQuery.getResultList();    
    ...snip...
} catch (PersistenceException ex) {
    ex.printStackTrace();
} finally {
    entityManager.close();
}    
}

==============================实体类

    @Entity
    @Table(name = "APPLICATION_R", schema = "IFC_OWNER")
    public class ApplicationR implements Serializable {
        private int applicationId;
        private String appCommonNm;
        private String appDesc;
        private String appUrl;
        ...snip...
More available if needed.

============================== 异常

## ApplicationsByStoredProc ##
Hibernate: 
    /* named native SQL query oracleproccall */ call JPA_APPLICATION_R_TEST()
Feb 19, 2013 2:58:07 PM org.hibernate.engine.jdbc.spi.SqlExceptionHelper logExceptions
WARN: SQL Error: 17003, SQLState: 99999
Feb 19, 2013 2:58:07 PM org.hibernate.engine.jdbc.spi.SqlExceptionHelper logExceptions
ERROR: Invalid column index
javax.persistence.PersistenceException: org.hibernate.exception.GenericJDBCException: Invalid column index
    at org.hibernate.ejb.AbstractEntityManagerImpl.convert(AbstractEntityManagerImpl.java:1377)
    at org.hibernate.ejb.AbstractEntityManagerImpl.convert(AbstractEntityManagerImpl.java:1300)
    at org.hibernate.ejb.QueryImpl.getResultList(QueryImpl.java:266)
    at com.myco.jpa.tests.ApplicationsByStoredProc.run(ApplicationsByStoredProc.java:37)
    at com.dstoutput.jpa.JPAEntities_InFactDomain_Test.main(JPAEntities_InFactDomain_Test.java:56)
Caused by: org.hibernate.exception.GenericJDBCException: Invalid column index
    at org.hibernate.exception.internal.StandardSQLExceptionConverter.convert(StandardSQLExceptionConverter.java:54)
    at org.hibernate.engine.jdbc.spi.SqlExceptionHelper.convert(SqlExceptionHelper.java:125)
    at org.hibernate.engine.jdbc.spi.SqlExceptionHelper.convert(SqlExceptionHelper.java:110)
    at org.hibernate.engine.jdbc.internal.proxy.AbstractStatementProxyHandler.continueInvocation(AbstractStatementProxyHandler.java:129)
    at org.hibernate.engine.jdbc.internal.proxy.CallableStatementProxyHandler.continueInvocation(CallableStatementProxyHandler.java:49)
    at org.hibernate.engine.jdbc.internal.proxy.AbstractProxyHandler.invoke(AbstractProxyHandler.java:81)
    at $Proxy16.registerOutParameter(Unknown Source)
    at org.hibernate.dialect.Oracle8iDialect.registerResultSetOutParameter(Oracle8iDialect.java:507)
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1 回答 1

1

我发现了这个问题。我使用的是 Session 和 Query 类的 javax.persistence 版本，而不是 org.hibernate 版本；javax.persistence 不支持 Oracle 存储过程调用，而 Hibernate 支持。如果没有下面提供的导入语句，差异是微妙的。赠品应该是使用 sqlQuery.getResultList()。这是一个在 Hibernate 版本的 Query 中不存在的 JPA 方法调用。

导入导入 javax.persistence.Query；

查询 sqlQuery = entityManager.createNamedQuery("oracleproccall"); 列表列表 = sqlQuery.getResultList();

使用 Hibernate 版本的构造是 query.list() 而不是 query.getResultList()：

import java.util.Iterator;
import java.util.List;
import org.hibernate.Query;
import org.hibernate.Session;
import org.hibernate.SessionFactory;
import org.hibernate.Transaction;
import org.hibernate.cfg.Configuration;
import com.myco.entities.ApplicationR


private void anotherTest() {
    Configuration cfg = new Configuration();
    cfg.configure("hibernate.cfg.xml");
    SessionFactory sf = cfg.buildSessionFactory();
    Session s = sf.openSession();
    Transaction tx = s.beginTransaction();

    List<AppR> apps;
    Query namedQuery = s.getNamedQuery("oraclestoredproc");
    apps = namedQuery.list();
    apps = s.getNamedQuery("oraclestoredproc").list();
    Iterator<ApplicationR> iterator = apps.iterator();
    while (iterator.hasNext()) {
        ApplicationR app = (ApplicationR) iterator.next();
        System.out.print(app.getApplicationId() + " ");
        System.out.print(app.getAppCommonNm() + " ");
        System.out.print(app.getAppDesc() + " ");
        System.out.println(app.getAppUrl() + " ");
    }
    s.flush();
    tx.commit();
    s.close();
}

感谢Jitu Ji和这个来源

于 2013-03-06T22:36:35.663 回答