hibernate 二级缓存

 1. <!-- 打开二级缓存 -->
    <property name="cache.use_second_level_cache">true</property>
    <property name="cache.provider_class">org.hibernate.cache.EhCacheProvider</property>

 2. hibernate-distribution-3.3.2.GA-dist\hibernate-distribution-3.3.2.GA\project\etc\ehcache.xml 复制到 src目录下面

 3. Hibernate\hibernate-distribution-3.3.2.GA-dist\hibernate-distribution-3.3.2.GA\lib\optional\ehcache\ehcache-1.2.3.jar 加入

 4.commons-logging-1.1.jar 加入

 5. 实体加入 @Cache(usage = CacheConcurrencyStrategy.NONSTRICT_READ_WRITE)