spring_hibernate

spring和hibernate整合方案
步骤:
 1.加入spring能力,此步骤需要选择一下jar包
  spring 3.0 core libraries (ioc)
  spring 3.0 Persistence core libraries (提供了对orm的简化支持)
  spring 3.0 aop libraries (Persistence包的实现依赖于aop包)
  spring 3.0 Persistence jdbc libraries (提供了数据源)
 2.加入hibernate能力
  主意:
   选择spring配置文件来配置hibernate相关设置
  生成配置文件如下:
   <bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource">
    <property name="driverClassName" value="oracle.jdbc.OracleDriver"/>
    <property name="url" value="jdbc:oracle:thin:@localhost:1521:moluo"/>
    <property name="username" value="moluo"/>
    <property name="password" value="moluo"/>
   </bean>
   <bean id="sessionFactory" class="org.springframework.orm.hibernate3.LocalSessionFactoryBean">
    <property name="dataSource" ref="dataSource"/>
    <property name="hibernateProperties">
     <props>
      <prop key="hibernate.dialect">
       org.hibernate.dialect.Oracle9Dialect
      </prop>
     </props>
    </property>
   </bean>
  在目前的配置文件中体现了原来hibernate.cfg.xml中的具体内容
   1.配置数据库连接
    <bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource">
     <property name="driverClassName" value="oracle.jdbc.OracleDriver"/>
     <property name="url" value="jdbc:oracle:thin:@localhost:1521:moluo"/>
     <property name="username" value="moluo"/>
     <property name="password" value="moluo"/>
    </bean>
   2.配置hibernate特色配置
    <property name="hibernateProperties">
     <props>
      <prop key="hibernate.dialect">
       org.hibernate.dialect.Oracle9Dialect
      </prop>
     </props>
    </property>
    常规做法:加入hibernate.show_sql=true
    <property name="hibernateProperties">
     <props>
      <prop key="hibernate.dialect">
       org.hibernate.dialect.Oracle9Dialect
      </prop>
      <prop key="hibernate.show_sql">
       true
      </prop>
     </props>
    </property>
   3.把需要映射的bean进行映射
    1.创建一个bean包
    2.选择数据库试图,加入需要映射的表的hibernate映射
    结果:spring配置文件中的sessionFactory 的 bean中新增加mappingResources属性
     <property name="mappingResources">
      <list>
       <value>bean/Test.hbm.xml</value>
      </list>
     </property>