错误如下：
Exception in thread “main” java.lang.NoClassDefFoundError: org/hibernate/annotations/common/reflection/MetadataProvider
at StudentTest.main(StudentTest.java:10)
Caused by: java.lang.ClassNotFoundException: org.hibernate.annotations.common.reflection.MetadataProvider
at java.net.URLClassLoader$1.run(URLClassLoader.java:202)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:190)
at java.lang.ClassLoader.loadClass(ClassLoader.java:306)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301)
at java.lang.ClassLoader.loadClass(ClassLoader.java:247)
… 1 more
StudentTest类的代码：

import org.hibernate.Session;
import org.hibernate.SessionFactory;
import org.hibernate.cfg.Configuration;
import com.hibernate.Student;
public class StudentTest {
	public static void main(String[] args) {
		Student s=new Student();
		s.setName("sa");
		s.setAge(12);
		Configuration cf=new Configuration();
		SessionFactory sf=cf.configure().buildSessionFactory();
		Session session=sf.openSession();
		session.beginTransaction();
		session.save(s);
		session.getTransaction().commit();
		session.close();
		sf.close();

	}
}

student.hbm.xml代码  （IE打开没有显示错误）

<?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="com.hibernate">
    <class name="Student">
      <id name="id"></id>
      <property name="name"></property>
      <property name="age"></property>
    </class>
</hibernate-mapping>

hibernate.cfg.xml代码（IE打开没有显示错误）

     <?xml version="1.0" encoding="utf-8"?>   
<!DOCTYPE hibernate-configuration PUBLIC   
          "-//Hibernate/Hibernate Configuration DTD 3.0//EN"   
          "http://hibernate.sourceforge.net/hibernate-configuration-3.0.dtd">      
    <hibernate-configuration>   
      <session-factory>      
          <property name="hibernate.connection.driver_class">com.mysql.jdbc.Driver </property>   
            <property name="hibernate.connection.url">jdbc:mysql://localhost:3306/hibernate</property>     
          <property name="hibernate.connection.username">root</property>   
          <property name="hibernate.connection.password">12345678</property>          
         <!--   <property name="hibernate.connection.pool.size">1</property> -->         
        <property name="hibernate.show_sql">true </property>   
     <!--   <property name="cache.provider_class">org.hibernate.cache.NoCacheProvider</property>   -->     
    <property name="connection.characterEncoding">UTF-8</property>            
       <!--    <property name="hbm2ddl.auto">update</property>   -->   
          <property name="hibernate.dialect">org.hibernate.dialect.MySQLDialect </property>          
          <mapping resource="com/hibernate/Student.hbm.xml"/> 
  </session-factory>   
  </hibernate-configuration>

student.java代码如下

package com.hibernate;
public class Student {
	private int age;
	private String name;
	private int id;

	public String getName() {
		return name;
	}

	public void setName(String name) {
		this.name = name;
	}

	public int getAge() {
		return age;
	}

	public void setAge(int age) {
		this.age = age;
	}

	public int getId() {
		return id;
	}

	public void setId(int id) {
		this.id = id;
	}
}

导入的hibernate的jar包如下