为何么会是null？？？
我已经注入了，打断点发现regedit为null，这是什么情况？？？

<?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:context="http://www.springframework.org/schema/context"
    xmlns:aop="http://www.springframework.org/schema/aop"
    xsi:schemaLocation="http://www.springframework.org/schema/beans 
           http://www.springframework.org/schema/beans/spring-beans-2.5.xsd
           http://www.springframework.org/schema/context
           http://www.springframework.org/schema/context/spring-context-2.5.xsd
           http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-2.5.xsd">




<bean id="dataSource"
class="org.apache.commons.dbcp.BasicDataSource">
<property name="driverClassName"
value="com.mysql.jdbc.Driver">
</property>
<property name="url"
value="jdbc:mysql://localhost:3306/myedition">
</property>
<property name="username" value="root"></property>
<property name="password" value="root"></property>
</bean>
<bean id="sessionFactory"
class="org.springframework.orm.hibernate3.LocalSessionFactoryBean">
<property name="dataSource">
<ref bean="dataSource"></ref>
</property>
<property name="hibernateProperties">
<props>
<prop key="hibernate.dialect">
org.hibernate.dialect.MySQLDialect
</prop>
 <prop key="hibernate.hbm2ddl.auto">update</prop>
<prop key="hibernate.show_sql">true</prop>
</props>
</property>
<property name="mappingResources">
<list>
   <value>com/myEdition/bean/Content.hbm.xml</value>
  <value>com/myEdition/bean/ContentType.hbm.xml</value>  
  <value>com/myEdition/bean/User.hbm.xml</value>  
</list>
</property>
   <property name="configurationClass" value="org.hibernate.cfg.AnnotationConfiguration" /> 
</bean>


 
 <!-- 定义事务管理器（声明式的事务） -->  
 <bean id="transactionManager"
class="org.springframework.orm.hibernate3.HibernateTransactionManager">
<property name="sessionFactory">
<ref local="sessionFactory" />
</property>
</bean>



<!-- 配置事务拦截器 -->
<bean id="transactionInterceptor"  class="org.springframework.transaction.interceptor.TransactionInterceptor">
<!--事务拦截器BEAN需要依赖注入一个事物管理器 -->
<property name="transactionManager" ref="transactionManager"/>
<property name="transactionAttributes">
<!-- 定义事物传播属性 -->
<props>
<prop key="delete*"> PROPAGATION_REQUIRED</prop>
<prop key="insert*"> PROPAGATION_REQUIRED</prop>
<prop key="update*"> PROPAGATION_REQUIRED</prop>
<prop key="save*"> PROPAGATION_