Hibernate！！关于关系映射的测试代码

package com.hb.model;

import static org.junit.Assert.*;

import org.hibernate.SessionFactory;
import org.hibernate.cfg.AnnotationConfiguration;
import org.hibernate.tool.hbm2ddl.SchemaExport;
import org.junit.AfterClass;
import org.junit.BeforeClass;
import org.junit.Test;

public class ORMMappingTest {
    private  static  SessionFactory   sessionFactory ; 
    
    //@BeforeClass
    public  static  void  beforeClass(){
        sessionFactory  = new  AnnotationConfiguration().configure().buildSessionFactory();
    }
    
//    @AfterClass
    public  static  void  afterClass(){
        sessionFactory.close();
    }
    
    

    @Test
    public void test() {
        new SchemaExport(new  AnnotationConfiguration().configure()).create(true, true);
    }
    
    public static void main(String[] args) {
        beforeClass();
    }

}