spring+hibernate中的事务管理

 <?xml version="1.0" encoding="UTF-8"?>

<beans xmlns="http://www.springframework.org/schema/beans"
 xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
 xmlns:aop="http://www.springframework.org/schema/aop"
 xmlns:tx="http://www.springframework.org/schema/tx"
    xsi:schemaLocation="http://www.springframework.org/schema/beans
   
    http://www.springframework.org/schema/beans/spring-beans-2.0.xsd
    http://www.springframework.org/schema/aop
    http://www.springframework.org/schema/aop/spring-aop-2.0.xsd
    http://www.springframework.org/schema/tx
    http://www.springframework.org/schema/tx/spring-tx-2.0.xsd">
 <!-- 定义webwork bean工厂管理由spring执行 -->
<bean id="spring-object-factory" class="com.opensymphony.xwork.spring.SpringObjectFactory"
                            init-method="initObjectFactory"/>
    <!-- 导入类映射文件 -->
 <import resource="import-contexts.xml"/>  
    <!-- 导入资源定义文件 -->
 <import resource="import-properties.xml"/>  
 <!-- 导入实体对象应象文件 -->
 <import resource="import-hbms.xml"/>
                  
 <!--定义事务处理-->

  
   <bean id="ottSessionFactory" class="org.springframework.orm.hibernate3.LocalSessionFactoryBean">
        <property name="dataSource" ref="dataSourceOtt"/>
      
       <property name="mappingLocations" ref="hbmappings"/>
        <property name="hibernateProperties">
            <props>
                <prop key="hibernate.dialect">org.hibernate.dialect.SQLServerDialect</prop>              
                <prop key="show_sql">true</prop>
            </props>
        </property>  
        
    </bean>

     <bean id="transactionManager" class="org.springframework.orm.hibernate3.HibernateTransactionManager">
         <property name="sessionFactory">
             <ref local="ottSessionFactory"/>
         </property>
     </bean> 
    

 <bean id="dataSourceOtt" class="org.apache.commons.dbcp.BasicDataSource"  destroy-method="close">
     <property name="driverClassName">
      <value>${db.driverClass}</value>
      </property>
     <property name="url">
         <value>${db.url}</value>
     </property>
     <property name="maxActive" value="400"/>
     <property name="maxIdle" value="30"/>
     <property name="maxWait" value="30000"/>

  <property name="username">
      <value>${db.username}</value>
  </property>
 
   <property name="password">
         <value>${db.password}</value>
   </property>

 </bean>

 <tx:annotation-driven transaction-manager="transactionManager" proxy-target-class="true"/>

 
 
 </beans>