<context:annotation-config />
    <context:component-scan base-package="com.itadmin" />

    <bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource"
        destroy-method="close">
        <property name="driverClassName" value="${jdbc.driverClassName}" />
        <property name="url" value="${jdbc.url}" />
        <property name="username" value="${jdbc.username}" />
        <property name="password" value="${jdbc.password}" />
    </bean>
    <context:property-placeholder location="/WEB-INF/jdbc.properties" />

    <bean id="sessionFactory"
        class="org.springframework.orm.hibernate3.annotation.AnnotationSessionFactoryBean">
        <property name="dataSource" ref="dataSource" />
        <property name="annotatedClasses"><!-- 将实体类注入annotatedClasses属性 -->
            <list>
                <value>com.itadmin.model.User</value>
                <value>com.itadmin.model.Product</value>
                <value>com.itadmin.model.ProductLog</value>
                <value>com.itadmin.model.SaleRecord</value>
                <value>com.itadmin.model.User</value>
            </list>
        </property>
        <!-- hibernate的一些配置 -->
        <property name="hibernateProperties">
            <props>
                <prop key="hibernate.dialect">org.hibernate.dialect.OracleDialect</prop>
                <prop key="hibernate.show_sql">true</prop>
                <prop key="hibernate.format_sql">true</prop>
                <prop key="hibernate.current_session_context_class">thread</prop>
            </props>
        </property>
    </bean>

    <bean id="loginAction" class="com.itadmin.action.LoginAction">
        <property name="userService">
            <ref bean="userService"/> 
        </property>
    </bean>  
    
    <bean id="logoutAction" class="com.itadmin.action.LogoutAction">
    </bean>   
    
    <bean id="transactionManager" 
      class="org.springframework.orm.hibernate3.HibernateTransactionManager"> 
      <property name="sessionFactory"> 
       <ref local="sessionFactory" /> 
      </property> 
    </bean> 
    
    <bean id="txManager"
        class="org.springframework.orm.hibernate3.HibernateTransactionManager">
        <property name="sessionFactory" ref="sessionFactory" />
    </bean>
    
    <tx:annotation-driven transaction-manager="txManager"/>

</beans>

package com.itadmin.service;
@Service("productService")
public class ProductService {
    private LogDao logDao;
    // private ProductDao productDao = new ProductDao();
    // private LogDao logDao = new LogDao();
    private ProductDao productDao;

    private Map productsMap;

    public LogDao getLogDao() {
        return logDao;
    }

    @Transactional
    public Product getProductById(int id) {
        Product product = productDao.findProductById(id);
        return product;
    }

    public ProductDao getProductDao()