一：查询缓存的配置
(1)在Hibernate配置文件中打开查询缓存
true
注意：查询缓存是依赖二级缓存的，注意先打开二级缓存
(2)query.setCacheable(true)
List
list = (List
)session.createQuery("from User").setCacheable(true).list();
List
list2 = (List
)session.createQuery("from User").setCacheable(true).list();
二：单元测试
@org.junit.Test
@SuppressWarnings({ "unused", "unchecked" })
public void testQueryCahce(){
Session session = factory.openSession();
session.beginTransaction();
List
list = (List
)session.createQuery("from User").setCacheable(true).list(); List
list2 = (List
)session.createQuery("from User").setCacheable(true).list(); session.getTransaction().commit(); session.close(); }
输出结果：只输出一条sql语句，证明查询缓存起作用了！
Hibernate:
select
user0_.id as id0_,
user0_.group_id as group3_0_,
user0_.name as name0_
from
User user0_
afterClass