java - 如何让 hibernate 打印出命名查询有什么问题？

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，我的应用程序启动日志文件中会出现类似于下面的错误。

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 以打印出命名查询的错误，而不仅仅是命名查询有错误？

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

Answer 1

Hibernate 自定义查询加载程序位于 org.hibernate.loader.custom.sql(对于 Hibernate 3，似乎是 Hibernate 4 too)。如果使用 log4j , 这只是设置这个包的问题 its own category为了打印日志(我建议您使用文件附加程序，因为如果使用控制台附加程序，之后的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，这就是您在查询加载时获得的错误输出:

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，但您在执行代码时也可能遇到查询错误。在那种情况下 HibernateException或类似的东西被抛出，你可以稍后检查。对于缺少冒号的情况，它实际上是一个 IllegalArgumentException由 AbstractQueryImpl 抛出类:

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