spring引用hibernate映射文件的四种方式

1、mappingResources

2、mappingLocations

3、mappingDirectoryLocations

4、mappingJarLocations

四种方式：https://www.cnblogs.com/bmbi/p/5299953.html

oracle  blob、clob 处理：http://blog.csdn.net/huiwenjie168/article/details/7013618/

<!-- 增加了对大对象字段处理配置Begin -->
 <bean id ="oracleLobHandler"
      class ="org.springframework.jdbc.support.lob.OracleLobHandler"
      lazy-init ="true" >
      <property  name ="nativeJdbcExtractor"  ref ="nativeJdbcExtractor" />
  </bean>     

  <bean id ="nativeJdbcExtractor"  class ="org.springframework.jdbc.support.nativejdbc.CommonsDbcpNativeJdbcExtractor"
      lazy-init ="true"/>
     <!-- 增加了对大对象字段处理配置End -->
<!--  定义Hibernatte框架中需要的SesscionFactory对象//-->
 <bean id="sessionFactory"
  class="org.springframework.orm.hibernate3.LocalSessionFactoryBean">
  <property name="dataSource" ref="dataSource" />
  <!--增加了对大对象字段处理配置Begin -->
  <property name ="lobHandler" ref ="oracleLobHandler"/>
  <!--增加了对大对象字段处理配置End -->
  <property name="mappingDirectoryLocations">
       <list>
         <value>classpath:/my/package/login/dao/pojo/</value>
         <value>classpath:/my/package/jpf/dao/pojo/</value>
         ......
       </list>
  </property>