hibernate5.0.5获取sessionFactory总报错，不知道问题出在哪？求大神啊

<?xml version='1.0' encoding='utf-8'?>

<!--

  ~ Hibernate, Relational Persistence for Idiomatic Java

  ~

  ~ License: GNU Lesser General Public License (LGPL), version 2.1 or later.

  ~ See the lgpl.txt file in the root directory or <http://www.gnu.org/licenses/lgpl-2.1.html>.

  -->

<!DOCTYPE hibernate-configuration PUBLIC

        "-//Hibernate/Hibernate Configuration DTD 3.0//EN"

        "http://www.hibernate.org/dtd/hibernate-configuration-3.0.dtd">



<hibernate-configuration>



    <session-factory>



        <!-- Database connection settings -->

        <property name="connection.driver_class">com.mysql.jdbc.Driver</property>

        <property name="connection.url">jdbc:mysql://localhost/j2ee</property>

        <property name="connection.username">root</property>

        <property name="connection.password">root</property>



        <!-- JDBC connection pool (use the built-in) -->

        <property name="connection.pool_size">1</property>



        <!-- SQL dialect -->

        <property name="dialect">org.hibernate.dialect.MySQLDialect</property>



        <!-- Disable the second-level cache  -->

        <property name="cache.provider_class">org.hibernate.cache.internal.NoCacheProvider</property>



        <!-- Echo all executed SQL to stdout -->

        <property name="show_sql">true</property>

        <property name="format_sql">true</property>



        <!-- Drop and re-create the database schema on startup -->

        <property name="hbm2ddl.auto">update</property>



        <mapping resource="cn/hibernate5/basic/Student.hbm.xml"/>



    </session-factory>



</hibernate-configuration>

<?xml version="1.0" encoding="UTF-8"?>

<!DOCTYPE hibernate-mapping PUBLIC

        "-//Hibernate/Hibernate Mapping DTD 3.0//EN"

        "http://www.hibernate.org/dtd/hibernate-mapping-3.0.dtd">



<hibernate-mapping package="cn.hibernate5.basic">



    <class name="Student" table="student">

        <id name="id" column="studentId">

        </id>

        <property name="name"></property>

        <property name="sex"></property>

    </class>



</hibernate-mapping>

package cn.hibernate5.basic;



public class Student {

	private int id;

	private String name;

	private String sex;

	

	public Student(){

		

	}



	public 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;

	}

	

}

package Test;



import org.hibernate.Session;

import org.hibernate.SessionFactory;

import org.hibernate.boot.MetadataSources;

import org.hibernate.boot.registry.StandardServiceRegistry;

import org.hibernate.boot.registry.StandardServiceRegistryBuilder;



import cn.hibernate5.basic.Student;



public class Hibernate {



	protected static SessionFactory getSessionFactory() throws Exception {

		SessionFactory sessionFactory = null;

		// A SessionFactory is set up once for an application!

		final StandardServiceRegistry registry = new StandardServiceRegistryBuilder()

				.configure() // configures settings from hibernate.cfg.xml

				.build();

		try {

			sessionFactory = new MetadataSources(registry).buildMetadata()

					.buildSessionFactory();

		} catch (Exception e) {

			// The registry would be destroyed by the SessionFactory, but we had

			// trouble building the SessionFactory

			// so destroy it manually.

			StandardServiceRegistryBuilder.destroy(registry);

		}



		return sessionFactory;

	}

}

package Test;



import org.hibernate.Session;

import org.hibernate.SessionFactory;



import cn.hibernate5.basic.Student;



public class StudentTest {

	public static void main(String args[]) {

		SessionFactory sf = null;

		try {

			sf = Hibernate.getSessionFactory();

		} catch (Exception e) {

			// TODO Auto-generated catch block

			e.printStackTrace();

		}



		Student s = new Student();

		s.setId(1);

		s.setName("fangshusen");

		s.setSex("man");



		Session session = sf.getCurrentSession();

		session.beginTransaction();

		session.save(s);

		session.getTransaction().commit();

		session.close();

	}



}