关于SSH的框架的整合

<?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" 
        xmlns:context="http://www.springframework.org/schema/context" 
        xsi:schemaLocation="
                    http://www.springframework.org/schema/beans 
                    http://www.springframework.org/schema/beans/spring-beans.xsd
                    http://www.springframework.org/schema/tx 
                    http://www.springframework.org/schema/tx/spring-tx.xsd
                    http://www.springframework.org/schema/aop
                    http://www.springframework.org/schema/aop/spring-aop.xsd
                    http://www.springframework.org/schema/context 
                    http://www.springframework.org/schema/context/spring-context.xsd">
                  
   <!-- 数据源：c3p0-->
   <bean id="myDataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource">
       <property name="driverClass"  value="${jdbc.driverClass}"></property>
       <property name="jdbcUrl"  value="${jdbc.url}"></property>
       <property name="user"  value="${jdbc.username}"></property>
       <property name="password"  value="${jdbc.password}"></property>
   </bean>
   <!-- 注册jdbc.properties文件 -->
   <context:property-placeholder location="classpath:jdbc.properties"/>
   
   <!-- 注册sessionFactory -->
   <bean  id="sessionFactory" class="org.springframework.orm.hibernate5.LocalSessionFactoryBean">
           <property name="dataSource" ref="myDataSource"/>
           <property name="packagesToScan" value="com.layne.beans"/>
           <property name="hibernateProperties">
              <props>
                     <!-- 当前session上下文 -->
                     <prop key="hibernate.current_session_context_class">org.springframework.orm.hibernate5.SpringSessionContext</prop>
                     <!-- 方言 -->
                     <prop key="hibernate.dialect">org.hibernate.dialect.MySQL5Dialect</prop>
                     <!-- 自动建表 -->
                     <prop key="hibernate.hbm2ddl.auto">update</prop>
                     <!--显示SQL语句  -->
                     <prop key="hibernate.show_sql">true</prop>
                     <!-- SQL语句格式化 -->
                     <prop key="hibernate.format_sql">true</prop>
                  </props>
           </property>
   </bean>
   
  <!-- 扫描 --> 
  <context:component-scan base-package="com.layne"/>
  
   <!-- 注册事物管理器 -->
   <bean id="hibernateTransactionManager" class="org.springframework.orm.hibernate5.HibernateTransactionManager">
         <property name="sessionFactory" ref="sessionFactory"></property>
   </bean>  
   <!-- 使用注解配置事物：事物驱动注册 -->
   <tx:annotation-driven transaction-manager="hibernateTransactionManager"/>
                    
</beans>

jdbc.driverClass=com.mysql.jdbc.Driver
jdbc.url=jdbc:mysql://localhost:3306/test
jdbc.username=root
jdbc.password=