如何让hibernate打印出命名查询的错误？

Question

在我的Spring/Hibernate/JPA应用程序中,我使用了很多命名查询,当我在其中一个查询中出现拼写错误时,请查看我的应用程序启动日志文件中的错误,类似于下面的错误.

Caused by: org.hibernate.HibernateException: Errors in named queries: FindAllCompanyFileTypes
    at org.hibernate.impl.SessionFactoryImpl.<init>(SessionFactoryImpl.java:426)
    at org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:1872)
    at org.hibernate.ejb.Ejb3Configuration.buildEntityManagerFactory(Ejb3Configuration.java:906)
    ... 70 more

如何配置hibernate打印出命名查询的错误而不只是命名查询有错误？

UPDATE例如JPA查询SELECT f FROM Foo WHERE f.v := true将失败,hibernate抱怨查询无效.Hibernate甚至没有尝试从中生成SQL,查询不正确的JPQL.我想知道的是如何让hibernate说查询是错误的,因为:=使用而不是=？不确定这是否是可以在休眠状态下打开的设置.

Answer 1

Hibernate自定义查询加载器的东西位于org.hibernate.loader.custom.sql(对于Hibernate 3而且似乎也是Hibernate 4).如果使用log4j,则只需将此软件包设置为自己的类别以便打印日志(我建议您使用文件appender,因为如果使用控制台appender,后续错误日志可能会与您感兴趣的内容重叠).

<category name="org.hibernate.loader.custom.sql" additivity="false">
    <priority value="trace" />
    <appender-ref ref="fileAppender" />
</category>

假设您的根记录器显示文件中的每个错误,这是查询加载时出错的输出:

17:27:18,348 TRACE SQLCustomQuery:85 -     starting processing of sql query [SELECT equipment.*, det.*
        FROM tdetectable_equipment equipment JOIN
        tdetectable det
        ON det.id = equipment.id_detectable
        WHERE
        equipment.id_detectable=det.id and det.active=1 and
        equipment.id_warehouse_container = :_Id]
17:27:18,358 TRACE SQLCustomQuery:85 -     starting processing of sql query [select line.*  from tpacking_slip_line line  join tpacking_slip slip  on line.id_packing_slip = slip.id where line.id_detectable = :detectableId and line.id_related_packing_slip_line is null and slip.`type`= :slipType order by slip.date desc;]
17:27:18,359 TRACE SQLQueryReturnProcessor:387 -     mapping alias [line] to entity-suffix [0_]
17:27:18,364 TRACE SQLCustomQuery:85 -     starting processing of sql query [select res.* from tdetectable det  join tpacking_slip_line line on det.id=line.id_detectable  and line.id_related_packing_slip_line is null join tpacking_slip slip on line.id_packing_slip = slip.id  and slip.`type`='OUT' join vreservation res on slip.id_reservation=res.id where det.id in ( :detIds ) group by(res.id) order by count(res.id) desc;]
17:27:18,365 TRACE SQLQueryReturnProcessor:387 -     mapping alias [res] to entity-suffix [0_]
17:27:18,368 ERROR SessionFactoryImpl:424 -     Error in named query: equipmentWarehouseQuery
org.hibernate.MappingException: Unknown collection role: com.mycompany.model.container.Container.detectables
    at org.hibernate.impl.SessionFactoryImpl.getCollectionPersister(SessionFactoryImpl.java:701)
    at org.hibernate.loader.custom.sql.SQLQueryReturnProcessor.addCollection(SQLQueryReturnProcessor.java:393)
    at org.hibernate.loader.custom.sql.SQLQueryReturnProcessor.processCollectionReturn(SQLQueryReturnProcessor.java:428)
    at org.hibernate.loader.custom.sql.SQLQueryReturnProcessor.processReturn(SQLQueryReturnProcessor.java:358)
    at org.hibernate.loader.custom.sql.SQLQueryReturnProcessor.process(SQLQueryReturnProcessor.java:171)
    at org.hibernate.loader.custom.sql.SQLCustomQuery.<init>(SQLCustomQuery.java:87)
    at org.hibernate.engine.query.NativeSQLQueryPlan.<init>(NativeSQLQueryPlan.java:67)
    at org.hibernate.engine.query.QueryPlanCache.getNativeSQLQueryPlan(QueryPlanCache.java:166)
    at org.hibernate.impl.SessionFactoryImpl.checkNamedQueries(SessionFactoryImpl.java:589)
    at org.hibernate.impl.SessionFactoryImpl.<init>(SessionFactoryImpl.java:413)
    at org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:1872)
    at org.springframework.orm.hibernate3.LocalSessionFactoryBean.newSessionFactory(LocalSessionFactoryBean.java:863)
    at org.springframework.orm.hibernate3.LocalSessionFactoryBean.buildSessionFactory(LocalSessionFactoryBean.java:782)
    at org.springframework.orm.hibernate3.AbstractSessionFactoryBean.afterPropertiesSet(AbstractSessionFactoryBean.java:188)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1541)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1479)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:521)

该异常是在加载时引发的,但在执行代码时也可能出现查询错误.在这种情况下,抛出HibernateException或类似的东西,您可以稍后检查.对于缺少冒号的情况,它实际上是AbstractQueryImpl类抛出的IllegalArgumentException:

java.lang.IllegalArgumentException: No positional parameters in query: SELECT equipment.*, det.*
        FROM tdetectable_equipment equipment JOIN
        tdetectable det
        ON det.id = equipment.id_detectable
        WHERE
        equipment.id_detectable=det.id and det.active=1 and
        equipment.id_container = _Id

Answer 2

您可以尝试通过设置打印 HSQL

<property name="show_sql">true</property>

然后在 log4j 中添加适当的日志级别以显示 org.hibernate.* 的 DEBUG 或 TRACE 级别日志记录。

更多信息在这里：http://docs.jboss.org/hibernate/core/3.5/reference/en/html/session-configuration.html#configuration-logging