Java Hibernate 5秒级缓存不工作,仍在从数据库中提取

Java Hibernate 5秒级缓存不工作,仍在从数据库中提取,java,hibernate,ehcache,Java,Hibernate,Ehcache,我计划用Hibernate 5实现二级缓存。实体类用@Cacheable注释,并添加了策略CacheConcurrencyStrategy.READ_WRITE。但它仍然在寻找数据库中的数据,而不是缓存 请看我的主要方法 public static void main(String[] args) { HolidayDAOImpl holidayImpl = new HolidayDAOImpl(); holidayImpl.setSessionFactory(Hibernate

我计划用Hibernate 5实现二级缓存。实体类用@Cacheable注释,并添加了策略CacheConcurrencyStrategy.READ_WRITE。但它仍然在寻找数据库中的数据,而不是缓存

请看我的主要方法

public static void main(String[] args) {
    HolidayDAOImpl holidayImpl = new HolidayDAOImpl();
    holidayImpl.setSessionFactory(HibernateUtil.INSTANCE.getSessionFactoryInstance());
    holidayImpl.load().forEach(System.out :: println);
    System.out.println("Loading second time");
    holidayImpl.load().forEach(System.out::println);
}   
请参阅HibernateUtil枚举

public enum HibernateUtil{
INSTANCE;

public SessionFactory getSessionFactoryInstance(){  
    Properties properties = new Properties();
    properties.setProperty(Environment.URL, "jdbc:mysql://dummy");
    properties.setProperty(Environment.DIALECT, "org.hibernate.dialect.MySQLDialect");
    properties.setProperty(Environment.DRIVER, "com.mysql.jdbc.Driver");
    properties.setProperty(Environment.USER, "demo");
    properties.setProperty(Environment.PASS, "demo");

    //second level cache prop

    properties.setProperty(Environment.USE_SECOND_LEVEL_CACHE, "true");
    properties.setProperty(Environment.USE_QUERY_CACHE, "true");
    properties.setProperty(Environment.CACHE_REGION_FACTORY, "org.hibernate.cache.ehcache.EhCacheRegionFactory");

    //logging

    properties.setProperty("hibernate.show_sql","true");
    properties.setProperty("hibernate.format_sql","true");

    Configuration cfg = new Configuration();
    cfg.setProperties(properties);
    cfg.addAnnotatedClass(Holidays.class);
    StandardServiceRegistry serviceRegistry = new StandardServiceRegistryBuilder().applySettings(cfg.getProperties()).build();
    SessionFactory sessionFactory = cfg.buildSessionFactory(serviceRegistry);
    return sessionFactory;
}
}
请参阅DAOImpl类

public List<Holidays> load() {
    try (Session session = sessionFactory.openSession()) {

        //List<Holidays> result = session.createQuery("from Holidays", Holidays.class).getResultList();
        Criteria criteria  = session.createCriteria(Holidays.class);
        criteria.add(Restrictions.like("holiday_name", "%QA%"));

        return criteria.list();
    } catch (Exception e) {
        e.printStackTrace();
    }
    return null;
}
公共列表加载(){
try(Session Session=sessionFactory.openSession()){
//List result=session.createQuery(“from Holidays”,Holidays.class).getResultList();
条件=session.createCriteria(假日.class);
添加(限制,如“假日名称”,“QA%”);
返回条件。list();
}捕获(例外e){
e、 printStackTrace();
}
返回null;
}
pom.xml

<dependencies>
    <dependency>
        <groupId>mysql</groupId>
        <artifactId>mysql-connector-java</artifactId>
        <version>8.0.13</version>
    </dependency>
    <!-- https://mvnrepository.com/artifact/org.hibernate/hibernate-core -->
    <dependency>
        <groupId>org.hibernate</groupId>
        <artifactId>hibernate-core</artifactId>
        <version>5.4.1.Final</version>
    </dependency>
    <dependency>
        <groupId>org.hibernate</groupId>
        <artifactId>hibernate-ehcache</artifactId>
        <version>5.4.1.Final</version>
    </dependency>
</dependencies>

mysql
mysql连接器java
8.0.13
org.hibernate
冬眠核心
5.4.1.最终版本
org.hibernate
休眠ehcache
5.4.1.最终版本
在查看一些堆栈溢出问题的答案时,您可以理解在Hibernate的最新版本(在版本4之后)中,配置有一些变化。我不确定我在配置上有没有错


任何人都可以调查一下,并找出为什么它仍然在寻找数据库而不是缓存

要使用hibernate查询缓存,必须在每个查询中添加
setCacheable(true)

如果添加
criteria.setCacheable(true)