JPQL不能阻止JPQL查询的缓存

entityManager.getTransaction().begin();
// 执行更新操作
entityManager.merge(updatedEntity);
entityManager.flush(); // 强制将更改同步到数据库
entityManager.clear(); // 清除一级缓存
entityManager.getTransaction().commit();

<persistence-unit name="myPersistenceUnit">
    <shared-cache-mode>ENABLE_SELECTIVE</shared-cache-mode>
    <properties>
        <property name="hibernate.cache.use_second_level_cache" value="true"/>
        <property name="hibernate.cache.region.factory_class" value="org.hibernate.cache.ehcache.EhCacheRegionFactory"/>
        <property name="hibernate.cache.use_query_cache" value="true"/>
        <property name="hibernate.cache.region_prefix" value="myApp"/>
        <property name="hibernate.cache.provider_configuration_file_resource_path" value="/ehcache.xml"/>
    </properties>
</persistence-unit>

<ehcache>
    <cache name="myApp.entityCache"
           maxElementsInMemory="1000"
           eternal="false"
           timeToIdleSeconds="300"
           timeToLiveSeconds="600"
           overflowToDisk="false"/>
</ehcache>

@QueryHints({
    @QueryHint(name = org.hibernate.annotations.QueryHints.CACHEABLE, value = "true"),
    @QueryHint(name = org.hibernate.annotations.QueryHints.CACHE_REGION, value = "myApp.entityCache")
})
List<Entity> findEntities();