spring+iBatis的xml解析出现问题

使用Spring+iBatis开发，测试是发生如下异常，百思不得其解啊！求高人指点

以下是我的代码

applicationContext.xml: 
<?xml version="1.0" encoding="UTF-8"?>
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-3.0.xsd
http://www.springframework.org/schema/tx
http://www.springframework.org/schema/tx/spring-tx-3.0.xsd
http://www.springframework.org/schema/aop
http://www.springframework.org/schema/aop/spring-aop-3.0.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context-3.0.xsd">

<!-- lob字段配置 -->
<bean id="nativeJdbcExtractor" lazy-init="true"
    class="org.springframework.jdbc.support.nativejdbc.CommonsDbcpNativeJdbcExtractor" />
    <!--    class="org.springframework.jdbc.support.nativejdbc.WebSphereNativeJdbcExtractor" /> -->

<bean id="lobHandler" lazy-init="true"
    class="org.springframework.jdbc.support.lob.OracleLobHandler">
    <property name="nativeJdbcExtractor">
        <ref bean="nativeJdbcExtractor" />
    </property>
</bean>


<!-- 加载系统数据源配置文件 -->
<!--  
<bean id="dataSource"
    class="org.springframework.jdbc.datasource.DriverManagerDataSource">
    <property name="driverClassName">
        <value>org.logicalcobwebs.proxool.ProxoolDriver
        </value>
    </property>
    <property name="url">
        <value>proxool.cloud</value>
    </property>
</bean>
-->
<bean class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer">
    <property name="location" value="jdbc.properties" />
    <property name="fileEncoding" value="UTF-8" />
</bean>
<bean id="dataSource" class="org.logicalcobwebs.proxool.ProxoolDataSource">
            <!--  
             <property name="driver">
                     <value>com.mysql.jdbc.Driver</value>
             </property>
             <property name="driverUrl">
                     <value>jdbc:mysql://localhost/mytest?characterEncoding=utf-8</value>
             </property>
             -->
            <property name="driver">
                    <value>${jdbc.driver}</value>
            </property>
            <property name="driverUrl">
                    <value>${jdbc.url}</value>
            </property>
            <property name="user">
                    <value>${jdbc.username}</value>
            </property>
            <property name="password">
                    <value>${jdbc.password}</value>
            </property>
            <!--
             <property name="user">
                     <value>root</value>
             </property>
             <property name="password">
                     <value>root</value>
             </property>
             -->
             <property name="alias">
                     <value>wstudy</value>
             </property>
             <property name="houseKeepingSleepTime">
                     <value>60000</value>
             </property>
             <property name="prototypeCount">
                     <value>5</value>
             </property>
             <property name="simultaneousBuildThrottle">
                 <value>20</value>
             </property>
             <property name="maximumActiveTime">
                 <value>60000</value>
             </property>
             <property name="houseKeepingTestSql">
                 <value>select CURRENT_DATE</value>
             </property>
             <property name="maximumConnectionCount">
                     <value>10</value>
             </property>
             <property name="minimumConnectionCount">
                     <value>1</value>
             </property>
             <property name="trace">
                     <value>true</value>
             </property>
             <property name="verbose">
                     <value>true</value>
             </property>
</bean>
<!-- *************************************************************************** -->
<!-- 事务管理 -->
<bean id="transactionManager"
    class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
      <property name="dataSource">  
        <ref bean="dataSource"/>  
    </property>  
</bean>

<!-- 事务通知 -->
<tx:advice id="txAdvice" transaction-manager="transactionManager">  
    <tx:attributes>
        <tx:method name="find*" propagation="REQUIRED" timeout="60" rollback-for="Exception"/>
        <tx:method name="add*" propagation="REQUIRED" timeout="60" rollback-for="Exception"/>
        <tx:method name="delete*" propagation="REQUIRED" timeout="60" rollback-for="Exception"/>
        <tx:method name="modify*" propagation="REQUIRED" timeout="60" rollback-for="Exception"/>
        <tx:method name="save*" propagation="REQUIRED" timeout="60" rollback-for="Exception"/>
        <tx:method name="insert*" propagation="REQUIRED" timeout="60" rollback-for="Exception"/>
        <tx:method name="update*" propagation="REQUIRED" timeout="60" rollback-for="Exception"/>
        <tx:method name="*" read-only="true" timeout="60"/>  
    </tx:attributes>  
</tx:advice>
<!-- WEB-INF/classes/  -->
<bean id="sqlMapClient" class="org.springframework.orm.ibatis.SqlMapClientFactoryBean">
    <property name="configLocations" value="sql-map-config.xml" />
    <property name="dataSource" ref="dataSource" />
</bean>

<bean id="sqlMapClientTemplate" class="org.springframework.orm.ibatis.SqlMapClientTemplate">
    <property name="sqlMapClient">
        <ref bean="sqlMapClient" />
    </property>
</bean>

<bean id="baseDao" class="com.wstudy.core.dao.BaseDaoImpl">
    <property name="sqlMapClientTemplate">
        <ref bean="sqlMapClientTemplate" />
    </property>
</bean>
<!--将上面的模版类织入到我们的DAO对象中 -->
<bean id="studentDao" class="test.ibatis.StudentDao">
    <property name="sqlMapClientTemplate">
        <ref bean="sqlMapClientTemplate" />
    </property>
</bean>
<bean id="stDao" class="com.wstudy.dao.impl.StudentDaoImpl" parent="baseDao" scope="prototype">
</bean>

<!-- 
<bean id="dbtest" class="org.springframework.jdbc.core.JdbcTemplate">
    <property name="dataSource">
        <ref local="dataSource" />
    </property>
</bean>
 -->

 <!-- 小柴的beans开始 -->
 <!-- 导入其他配置模块 -->
<import resource="com/wstudy/questions/service/Question.xml" /> 

<!-- 导入其他配置模块 -->
<import resource="com/wstudy/service/teacher/teacher.xml" /> 
sql-map-config.xml:
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE sqlMapConfig
PUBLIC "-//iBATIS.com//DTD SQL Map Config 2.0//EN"
"http://www.ibatis.com/dtd/sql-map-config-2.dtd">
<settings 
    cacheModelsEnabled="true" 
    enhancementEnabled="true" 
    lazyLoadingEnabled="true" 
    errorTracingEnabled="true" 
    maxRequests="50" 
    maxSessions="10" 
    maxTransactions="5" 
    useStatementNamespaces="true" 
/> 
<!--
<sqlMap resource="com/wstudy/test/AdminUserEntity.xml" />
-->
<sqlMap resource="com/wstudy/entity/teacher/TeacherEntity.xml" />
<sqlMap resource="com/wstudy/entity/teacher/EvaluationEntity.xml" />
<sqlMap resource="com/wstudy/entity/teacher/TeacherStarEntity.xml" />
<sqlMap resource="com/wstudy/entity/teacher/QueAnsEntity.xml" />
<sqlMap resource="com/wstudy/entity/teacher/EvaTeacherEntity.xml" />
<sqlMap resource="com/wstudy/core/entity/StudentEntity.xml" />

<sqlMap resource="test/ibatis/Student.xml" />

<sqlMap resource="com/wstudy/questions/entity/ComQuesAnsEntity.xml" />
<sqlMap resource="com/wstudy/questions/entity/ComQuesEntity.xml" />
<sqlMap resource="com/wstudy/questions/entity/TypicalQuesEntity.xml" />