2017-10-19 124 views
0

我有一种方法从数据库中获取教育事件。不知道为什么它无法运行。看起来查询仅在某些情况下失败,但无法真正找出破坏它的输入参数。我无法从日志中获得关于位置1853处的语法错误的任何提示。您是否有任何想法导致问题或如何进一步调试该方法?春天的日期冬眠的查询

public List<EE> findEEs(S s, List<EM> eMs, E e) { 
    TypedQuery<EE> query = entityManager.createQuery(
     "select distinct ee from EE ee left join ee.lSE lse " 
      + "where ee.eM in (:em) " 
      + "and (ee.scope = :publicScope " 
      + "or (ee.scope = :limitedScope and (ee.hE= :e or :e in lse)) " 
      + "or (ee.scope = :localScope and ee.hE = :education)) " 
      + "and ee.status = :status and ee.startDate > :now " 
      + "and (ee.groupSize = 0 or (ee.groupSize > 0 " 
      + " and ee.groupSize > (ee.numberOfStudents + ee.reservedSeats))) " 
      + "and ee.id not in (select pee.eE.id from PEE pee " 
      + "where studentStatus.s = :s and eE.eM in (:em))", 
     EE.class); 

    query.setParameter("s", s); 
    query.setParameter("em", eMs); 
    query.setParameter("publicScope", PUBLIC); 
    query.setParameter("limitedScope", LIMITED); 
    query.setParameter("localScope", LOCAL); 
    query.setParameter("e", e); 
    query.setParameter("status", CONFIRMED); 
    query.setParameter("now", new DateTime()); 

    return query.getResultList(); 

日志显示这一点:

2017-10-19 14:46:32,673 [http-nio-8090-exec-10] WARN org.hibernate.engine.jdbc.spi.SqlExceptionHelper - SQL Error: 0, SQLState: 42601 
2017-10-19 14:46:32,674 [http-nio-8090-exec-10] ERROR org.hibernate.engine.jdbc.spi.SqlExceptionHelper - ERROR: syntax error at or near ")" 
    Position: 1853 
lokakuuta 19, 2017 2:46:32 IP. org.springframework.web.servlet.handler.AbstractHandlerExceptionResolver logException 
WARNING: Resolved exception caused by Handler execution: org.springframework.dao.InvalidDataAccessResourceUsageException: could not extract ResultSet; SQL [n/a]; nested exception is org.hibernate.exception.SQLGrammarException: could not extract ResultSet 

Data access failure 

Sorry, a problem occurred while accessing the database. 

org.springframework.orm.jpa.EntityManagerFactoryUtils.convertJpaAccessExceptionIfPossible(EntityManagerFactoryUtils.java:384) 
org.springframework.orm.jpa.vendor.HibernateJpaDialect.translateExceptionIfPossible(HibernateJpaDialect.java:246) 
org.springframework.orm.jpa.AbstractEntityManagerFactoryBean.translateExceptionIfPossible(AbstractEntityManagerFactoryBean.java:491) 
org.springframework.dao.support.ChainedPersistenceExceptionTranslator.translateExceptionIfPossible(ChainedPersistenceExceptionTranslator.java:59) 
org.springframework.dao.support.DataAccessUtils.translateIfNecessary(DataAccessUtils.java:213) 
org.springframework.dao.support.PersistenceExceptionTranslationInterceptor.invoke(PersistenceExceptionTranslationInterceptor.java:147) 
org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179) 
org.springframework.transaction.interceptor.TransactionInterceptor$1.proceedWithInvocation(TransactionInterceptor.java:99) 
org.springframework.transaction.interceptor.TransactionAspectSupport.invokeWithinTransaction(TransactionAspectSupport.java:282) 
org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:96) 
org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179) 
org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:213) 
com.sun.proxy.$Proxy435.findUnaddedEducationEvents(Unknown Source) 
+0

你确定你的':em'参数永远不是空的吗?你正在使用什么版本的休眠?它是'> ='3.6.1吗? –

+0

请增加休眠日志记录(查询+绑定参数)...为一个失败的....我怀疑joda(?)DateTime是责怪.. – xerx593

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@AbdullahKhan,其实这是一个很好的观点。 :em参数确实有时是空的,但不应该查询返回空结果列表而不是失败? – krltos

回答

1

从逗号分隔的列表的docs

必须有至少一种元素 限定用于IN的设定值的表达。

确保您传入的参数至少有一个值。

也查看相关question

+0

@krltos - 这是否以任何方式帮助你!? –

+0

是的,它解决了这个问题。谢谢! – krltos