Hibernate缓存

OSCache可以支持中央缓存

要想支持缓存hibernate.cfg.xml应该做如下配置：

<?xml version='1.0' encoding='utf-8'?>  <!DOCTYPE hibernate-configuration PUBLIC      "-//Hibernate/Hibernate Configuration DTD//EN"      "http://hibernate.sourceforge.net/hibernate-configuration-3.0.dtd">    <hibernate-configuration>      <session-factory>          <property name="hibernate.connection.driver_class">org.gjt.mm.mysql.Driver</property>          <property name="hibernate.connection.url">jdbc:mysql://localhost:3306/LazyOfOne2One</property><!-- ///表示连接本机的数据库//localhost:3306 -->          <property name="hibernate.connection.username">root</property>          <property name="hibernate.connection.password">1234</property>          <property name="hibernate.dialect">org.hibernate.dialect.MySQLDialect</property>                 <property name="hibernate.hbm2ddl.auto">create</property>          <property name="hibernate.show_sql">true</property>          <property name="hibernate.format_sql">true</property>           <property name="hibernate.cache.use_second_level_cache">true</property>          <!-- 二级缓存默认是打开的，但是默认没有提供实现类 -->          <property name="hibernate.cache.provider_class">org.hibernate.cache.OSCacheProvider</property>          <property name="hibernate.cache.use_query_cache">true</property>          <!--使Query接口也支持缓存，默认是不支持的-->          <property name="hibernate.generate_statistics">true</property>          <!--生成统计信息-->                    <class-cache class="blog.hibernate.domain.IdCard" usage="read-write"/>          <!--对于想要对其进行缓存的类进行配置-->                            <mapping resource="blog/hibernate/domain/Person.hbm.xml"/>          <mapping resource="blog/hibernate/domain/IdCard.hbm.xml"/>      </session-factory>   </hibernate-configuration>

<?xml version="1.0"?>  <!DOCTYPE hibernate-mapping PUBLIC          "-//Hibernate/Hibernate Mapping DTD 3.0//EN"          "http://hibernate.sourceforge.net/hibernate-mapping-3.0.dtd">    <hibernate-mapping package="blog.hibernate.domain">      <class name="IdCard" table="IDCARD">          <cache usage="read-write"/>          <id name="id" column="CARD_ID">              <generator class="foreign">                  <param name="property">person</param>              </generator>          </id><!-- IdCard使用的主键来自主对像Person-->          <property name="name" column="CARD_NAME" type="string"></property>          <one-to-one name="person" constrained="true" ></one-to-one>                  <!-- constrained="true" 是为外键加约束，这在一对一中只能从对象使用，主对像是不能使用的 -->                  <!-- fetch 默认为 "select" -->      </class>  </hibernate-mapping>