hibernate.cache.region.factory_class在hibernate.cfg.xml中必需 [英] hibernate.cache.region.factory_class Required in hibernate.cfg.xml

问题描述

我正在使用memcache作为Hibernate的二级缓存。我使用hibernate-memcached-1.2.4，spymemcached 2.8.0和hibernate 4.1.4。

但是当我尝试使用它时，它给了我错误， / b>

 
创建初始会话工厂failedorg.hibernate.cache.NoCacheRegionFactoryAvailableException：在应用程序中使用二级缓存，但属性hibernate.cache没有给出.region.factory_class，请禁用第二级缓存或将正确的区域工厂类名称设置为属性hibernate.cache.region.factory_class（并确保例如第二级缓存提供程序hibernate-infinispan可用类路径）。 
异常的线程Util.HibernateUtil 主 java.lang.ExceptionInInitializerError 
。（HibernateUtil.java:16）
在hibba.AccountDAOimpl.getAccount（AccountDAOimpl.java:23）$ B在hibba.Connect.main（Connect.java:7）
 $ b引起的：org.hibernate.cache.NoCacheRegionFactoryAvailableException：二级缓存应用程序中使用，但产权hibernate.cache.region.factory_class是没有给出，请禁用二级缓存或将正确的区域工厂类名称设置为属性hibernate.cache.region.factory_class（并确保例如二级缓存提供程序hibernate-infinispan在类路径中可用）。 
在org.hibernate.cache.internal.NoCachingRegionFactory.buildTimestampsRegion（NoCachingRegionFactory.java:87）$ B $在org.hibernate.cache.spi.UpdateTimestampsCache湾（UpdateTimestampsCache.java:63）
。在org.hibernate.internal.SessionFactoryImpl（SessionFactoryImpl.java:510）
在org.hibernate.cfg.Configuration.buildSessionFactory（Configuration.java:1744）
在org.hibernate.cfg.Configuration.buildSessionFactory （Configuration.java:1782）
在Util.HibernateUtil。（HibernateUtil.java:12）
 ... 2 more 

在hibernate.cfg.xml中编写的属性为：

 < pre> 
< property name =hibernate.cache.use_query_cache> true< / property> 
< property name =cache.provider_class> com.googlecode.hibernate.memcached.MemcachedCacheProvider< / property> 
将属性名= hibernate.memcached.memcacheClientFactory > com.googlecode.hibernate.memcached.dangamemcached.DangaMemcacheClientFactory< /性> 
< property name =hibernate.Memcached.servers> localhost：11211< / property> 
< property name =hibernate.Memcached.cacheTimeSeconds> 300< / property> 
< property name =hibernate.Memcached.connectionFactory> KetamaConnectionFactory< / property> < /预> 
  

解决方案

这个例外很容易理解。你必须设置* hibernate.cache.region.factory_class *属性。例如，ehcache会添加以下行：

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

I am working on using memcache as second level cache for Hibernate. I am using hibernate-memcached-1.2.4, spymemcached 2.8.0 and hibernate 4.1.4.

But when i try to use it , it gives me error saying

    Initial sessionfactory creation failedorg.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).
    Exception in thread "main" java.lang.ExceptionInInitializerError
        at Util.HibernateUtil.(HibernateUtil.java:16)
        at hibba.AccountDAOimpl.getAccount(AccountDAOimpl.java:23)
        at hibba.Connect.main(Connect.java:7)
    Caused by: 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.buildTimestampsRegion(NoCachingRegionFactory.java:87)
        at org.hibernate.cache.spi.UpdateTimestampsCache.(UpdateTimestampsCache.java:63)
        at org.hibernate.internal.SessionFactoryImpl.(SessionFactoryImpl.java:510)
        at org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:1744)
        at org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:1782)
        at Util.HibernateUtil.(HibernateUtil.java:12)
        ... 2 more

The properties written in hibernate.cfg.xml is:

<pre>
<property name="hibernate.cache.use_query_cache">true</property>
<property name="cache.provider_class">com.googlecode.hibernate.memcached.MemcachedCacheProvider </property>
        <property name="hibernate.memcached.memcacheClientFactory">com.googlecode.hibernate.memcached.dangamemcached.DangaMemcacheClientFactory</property>      
        <property name="hibernate.Memcached.servers"> localhost:11211 </property>
        <property name="hibernate.Memcached.cacheTimeSeconds">300</property>
        <property name="hibernate.Memcached.connectionFactory">KetamaConnectionFactory</property> </pre>

解决方案

The exception is quite self-explanatory. You have to set the *hibernate.cache.region.factory_class* property. For instance with ehcache would be adding the following line:

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

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