spring+hibernate整合有关问题

<?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:context="http://www.springframework.org/schema/context"       xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-2.5.xsd            http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-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/spring-aop-2.5.xsd">  <context:annotation-config/>  <aop:aspectj-autoproxy/>  <context:component-scan base-package="com.impl"/>  <bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource" destroy-method="close">    <!-- results in a setDriverClassName(String) call -->  <property name="driverClassName" value="com.microsoft.sqlserver.jdbc.SQLServerDriver"/>  <property name="url" value="jdbc:sqlserver://localhost:1433;DatabaseName=clubdb"/>  <property name="username" value="sa"/>  <property name="password" value="123456"/></bean> <bean id="sessionFactory" class="org.springframework.orm.hibernate3.annotation.AnnotationSessionFactoryBean">    <property name="dataSource" ref="dataSource"/>    <property name="annotatedClasses">      <list>        <value>entity.User</value>      </list>    </property>    <property name="hibernateProperties">    <props>        <prop key="hibernate.dialect">        org.hibernate.dialect.SQLServerDialect <!-- SQLServerDialect -->         </prop>        <prop key="hibernate.show_sql">true</prop>            </props>     </property>  </bean>    </beans>

package com.impl;import java.sql.Connection;import java.sql.SQLException;import javax.annotation.Resource;import javax.sql.DataSource;import org.hibernate.Session;import org.hibernate.SessionFactory;import org.junit.Test;import org.springframework.stereotype.Component;import com.entity.User;@Component("d3")public class UserImpl {    private SessionFactory sessionFactory;    public SessionFactory getSessionFactory() {        return sessionFactory;    }          @Resource    public void setSessionFactory(SessionFactory sessionFactory) {        this.sessionFactory = sessionFactory;    }    public void save(User user){        Session s=sessionFactory.getCurrentSession();        s.beginTransaction();        s.save(user);        s.beginTransaction().commit();                                    }}

package com.entity;import javax.persistence.Entity;import javax.persistence.GeneratedValue;import javax.persistence.Id;@Entitypublic class User {private int id;private String name;private String sex;@Id@GeneratedValuepublic int getId() {    return id;}public void setId(int id) {    this.id = id;}public String getName() {    return name;}public void setName(String name) {    this.name = name;}public String getSex() {    return sex;}public void setSex(String sex) {    this.sex = sex;}}