Hibernate NoCacheRegionFactoryAvailableException

Question

我得到了一个奇怪的Hibernate异常,我无法解释.它告诉我,我正在使用二级缓存,但没有在哪里hibernate.cfg.xml指定二级缓存.这是例外:

org.hibernate.cache.NoCacheRegionFactoryAvailableException: Second-level cache is used in the
application, but property hibernate.cache.region.factory_class is not given, please either
disable second level cache or set correct region factory class name to property
hibernate.cache.region.factory_class (and make sure the second level cache provider,
hibernate-infinispan, for example, is available in the classpath).
    at org.hibernate.cache.internal.NoCachingRegionFactory.buildEntityRegion(NoCachingRegionFactory.java:69)
    at org.hibernate.internal.SessionFactoryImpl.<init>(SessionFactoryImpl.java:348)
    at org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:1769)
    at net.me.myapp.common.dao.SessionFactoryProvider.newSessionFactory(SessionFactoryProvider.java:37)
    at net.me.myapp.common.dao.BaseDAO.doPersist(BaseDAO.java:28)
    at net.me.myapp.common.dao.WordDAO.deleteAllWords(WordDAO.java:36)
    at net.me.myapp.tools.dmapper.DictionaryMapper.run(DictionaryMapper.java:88)
    at net.me.myapp.tools.dmapper.DictionaryMapper.main(DictionaryMapper.java:56)

我的hibernate.cfg.xml:

<?xml version='1.0' encoding='UTF-8'?>
<!DOCTYPE hibernate-configuration PUBLIC
    "-//Hibernate/Hibernate Configuration DTD 3.0//EN"
    "http://www.hibernate.org/dtd/hibernate-configuration-3.0.dtd">
<hibernate-configuration>
    <session-factory>
        <!-- DataSource & Connection info. -->
        <property name="hibernate.dialect">org.hibernate.dialect.H2Dialect</property>
        <property name="hibernate.connection.driver.class">org.h2.Driver</property>
        <property name="hibernate.connection.url">jdbc:h2:file:/${MYAPP_HOME}/data/myapp</property>
        <property name="hibernate.connection.username">myapp</property>
        <property name="hibernate.connection.password">mypassword</property>
        <property name="hibernate.connection.pool_size">1</property>

        <!-- General Hibernate settings. -->
        <property name="show_sql">true</property>
        <property name="format_sql">true</property>
        <property name="use_sql_comments">true</property>

        <!-- DDL Mode. -->
        <property name="hbm2ddl.auto">validate</property>

        <!-- All our Hibernate mapping XML files. -->
        <mapping class="net.me.myapp.common.dto.WordDTO" />
    </session-factory>
</hibernate-configuration>

什么会触发这个例外？提前致谢!

Answer 1

加索尔上写道hibernate.cache.region.factory_class在hibernate.cfg.xml需要:

例外是不言自明的.你必须设置 hibernate.cache.region.factory_class属性.例如,ehcache将添加以下行:

<property name="hibernate.cache.region.factory_class">net.sf.ehcache.hibernate.EhCacheRegionFactory</property>

Answer 2

使用以下行修复它:

<beans:entry key="hibernate.cache.use_second_level_cache" value="false"/>

但Hibernate消息可能是一个警告,我们应该使用二级缓存？

Answer 3

我也收到了这个错误并花了一些时间来追踪.有一次,我们将有多个缓存区域,但最终决定我们只有一个缓存池.

当我们将该更改合并到较旧的分支时 - 我们仍然有一个实体具有每个实体的缓存池的旧策略:

@Entity
@Cache(usage = CacheConcurrencyStrategy.READ_WRITE, region="tableRegion")
@Table(name = "table")
public class table {

通过删除缓存注释 - 它解决了org.hibernate.cache.NoCacheRegionFactoryAvailableException:

@Entity
@Table(name = "table")
public class table {

如果其他人有类似的情况,我想发布