ssh框架 hibernate配置 连接sql server2005的问题报空指针异常

空指针异常，你把配置也贴上来看看，不一定是哪的问题。

<?xml version="1.0" encoding="UTF-8"?>
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:tx="http://www.springframework.org/schema/tx"
xmlns:aop="http://www.springframework.org/schema/aop"
xsi:schemaLocation="
http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans-4.1.xsd
http://www.springframework.org/schema/tx
http://www.springframework.org/schema/tx/spring-tx-4.1.xsd
http://www.springframework.org/schema/aop
http://www.springframework.org/schema/aop/spring-aop-4.1.xsd">

<!-- 配置数据源 使用的是Druid数据源 -->
<bean name="dataSource" class="com.alibaba.druid.pool.DruidDataSource" init-method="init" destroy-method="close">
 <!--   <property name="driverClass" value="${jdbc.driver}" />  -->
    <!-- <property name="driverClassName" value="${jdbc.driver}" />  -->
    <property name="url" value="${jdbc.url}" />
    <property name="username" value="${jdbc.username}" />
    <property name="password" value="${jdbc.password}" />

    <!-- 初始化连接大小 -->
    <property name="initialSize" value="0" />
    <!-- 连接池最大使用连接数量 -->
    <property name="maxActive" value="20" />

    <!-- 连接池最小空闲 -->
    <property name="minIdle" value="0" />
    <!-- 获取连接最大等待时间 -->
    <property name="maxWait" value="180000" />
    <property name="poolPreparedStatements" value="true" />
    <property name="maxPoolPreparedStatementPerConnectionSize"  value="33" />  
    <!-- 用来检测有效sql -->
    <property name="validationQuery" value="${validationQuery}" />
    <property name="testOnBorrow" value="false" />
    <property name="testOnReturn" value="false" />
    <property name="testWhileIdle" value="true" />
    <!-- 配置间隔多久才进行一次检测，检测需要关闭的空闲连接，单位是毫秒 -->
    <property name="timeBetweenEvictionRunsMillis" value="60000" />
    <!-- 配置一个连接在池中最小生存的时间，单位是毫秒 -->
    <property name="minEvictableIdleTimeMillis" value="25200000" />
    <!-- 打开removeAbandoned功能 -->
    <property name="removeAbandoned" value="true" />
    <!-- 1800秒，也就是30分钟 -->
    <property name="removeAbandonedTimeout" value="1800" />
    <!-- 关闭abanded连接时输出错误日志 -->
    <property name="logAbandoned" value="true" />
    <!-- 监控数据库 -->
    <property name="filters" value="mergeStat" />  
</bean>

<!-- 配置hibernate的SessionFactory -->
<bean id="sessionFactory"
    class="org.springframework.orm.hibernate4.LocalSessionFactoryBean">
    <!-- 注入数据源 相关信息看源码 -->
    <property name="dataSource" ref="dataSource" />
    <!-- hibernate配置信息 -->
    <property name="hibernateProperties">
        <props>
            <prop key="hibernate.dialect">${hibernate.dialect}</prop> 
            <prop key="hibernate.show_sql">${hibernate.show_sql}</prop>
            <prop key="hibernate.format_sql">${hibernate.format_sql}</prop> 
        <!--    起作用的是<prop key="hibernate.hbm2ddl.auto">update</prop>这一句,自动建表  -->
           <prop key="hibernate.hbm2ddl.auto">${hibernate.hbm2ddl.auto}</prop> 
        </props>
    </property>
    <!-- 扫描hibernate注解配置的entity -->
    <property name="packagesToScan" value="com.huning_file.java.entity" />
    <!-- <property name="packagesToScan" value="com.huning_file.java.entity.Working_drawing_uploadService" /> -->
</bean>