Spring+Hibernate+Struts2项目的数据配置不能映射解决方案

<?xml version="1.0" encoding="UTF-8"?><beans xmlns="http://www.springframework.org/schema/beans"    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"     xsi:schemaLocation="http://www.springframework.org/schema/beans     http://www.springframework.org/schema/beans/spring-beans-2.0.xsd">    <bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource">        <property name="driverClassName" value="com.mysql.jdbc.Driver" />        <property name="url" value="jdbc:mysql://localhost:3306/sciproject?useUnicode=true?amp;characterEncoding=UTF-8" />        <property name="username" value="root" />        <property name="password" value="root" />        <property name="initialPoolSize" value="1" />        <property name="minPoolSize" value="1" />        <property name="maxPoolSize" value="40" />        <property name="maxIdleTime" value="20" />    </bean>        <bean id="sessionFactory" class="org.springframework.orm.hibernate3.LocalSessionFactoryBean">        <property name="dataSource" ref="dataSource" />        <property name="mappingResourses">            <list>                <value>cn/itcast/vo/Teacher.hbm.xml</value>                <value>cn/itcast/vo/Thesis.hbm.xml</value>                <value>cn/itcast/vo/Research.hbm.xml</value>                <value>cn/itcast/vo/Literary.hbm.xml</value>                <value>cn/itcast/vo/Achievement.hbm.xml</value>            </list>        </property>    </bean>        <bean id="txManager" class="org.springframework.orm.hibernate3.HibernateTransactionManager">        <property name="sessionFactory" ref="sessionFactory" />    </bean></beans>

<?xml version="1.0" encoding="utf-8"?><!DOCTYPE hibernate-mapping PUBLIC "-//Hibernate/Hibernate Mapping DTD 3.0//EN""http://hibernate.sourceforge.net/hibernate-mapping-3.0.dtd"><hibernate-mapping>    <class name="cn.itcast.vo.Research" table="sci_research">        <id name="researchId" type="java.lang.Integer" column="researchId" />        <property name="researchName" type="java.lang.String" column="researchName" />        <property name="rank" type="java.lang.String" column="rank" />        <property name="leader" type="java.lang.String" column="leader" />        <property name="leader_organization" type="java.lang.String"            column="leader_organization" />        <property name="sLeader" type="java.lang.String" column="sLeader" />        <property name="sLeader_organization" type="java.lang.String"            column="sLeader_organization" />        <property name="publishDate" type="java.util.Date" column="publishDate" />        <property name="expense" type="java.lang.String" column="expense" />    </class></hibernate-mapping>