一：.项目结构

 

二、代码

1）HibernateUtil

package util;import org.hibernate.SessionFactory;import org.hibernate.boot.MetadataSources;import org.hibernate.boot.registry.StandardServiceRegistry;import org.hibernate.boot.registry.StandardServiceRegistryBuilder;public class HibernateUtil {    private static SessionFactory sf;        static {        StandardServiceRegistry registry =                new StandardServiceRegistryBuilder()                .configure()//实验方法给个参数，看配置文件名能否不是hibernate.cfg.xml                .build();                sf = new MetadataSources(registry)                .buildMetadata()                .buildSessionFactory();    }        public static SessionFactory getSessionFactory(){        return sf;    }}

 

2）配置文件hibernate.cfg.xml

     
         
              
       
        oracle.jdbc.driver.OracleDriver
               
       
        jdbc:oracle:thin:@localhost:1521:orcl
               
       
        myuser
               
       
        123
                       
       
        org.hibernate.dialect.Oracle10gDialect
               
       
        create
                       
       
        true
               
       
        true
                       
           
      
     

 

3.1）实体对象

package entity;public class Student {    private String sno;    private String sname;    public String getSno() {        return sno;    }    public void setSno(String sno) {        this.sno = sno;    }    public String getSname() {        return sname;    }    public void setSname(String sname) {        this.sname = sname;    }    }

 

3.2）实体映射文件

 

4）dao方法

package dao;import java.util.List;import org.hibernate.Session;import org.hibernate.SessionFactory;import org.hibernate.Transaction;import entity.Student;import util.HibernateUtil;public class StudentDao {    private SessionFactory sf;    public StudentDao() {        sf = HibernateUtil.getSessionFactory();    }        /*添加*/    public void insert(Student stu){        Session s = sf.openSession();                Transaction ts = s.beginTransaction();        /*添加*/        s.save(stu);                ts.commit();        s.close();    }        /*修改*/    public void udate(Student stu){        Session s = sf.openSession();                Transaction ts = s.beginTransaction();        /*修改*/        s.update(stu);                ts.commit();        s.close();       }        /*删除*/    public void delete(String sno){        Session session = sf.openSession();        Transaction tx = session.beginTransaction();                Student stu = session.get(Student.class, sno);        /*删除*/        session.delete(stu);        tx.commit();        session.close();    }        /*查询*/    public List
     
       getAll(){        Session s = sf.openSession();        String hql = "from Student";                /*查询*/        List
      
        list =  s.createQuery(hql).list();        s.close();        return list;    }        }
      
     

 

5）test测试

package test;import dao.StudentDao;import entity.Student;public class Main {    public static void main(String[] args) {        StudentDao dao = new StudentDao();                /*添加*/        Student stu = new Student();        stu.setSno("22");        stu.setSname("z22");        dao.insert(stu);                /*修改*/        /*Student stu = new Student();        stu.setSno("11");        stu.setSname("2222222");        dao.udate(stu);*/                /*查询*/        /*        List
     
       list = dao.getAll();        for(Student s: list){            System.out.println(s.getSname());        }*/                /*删除*/        /*dao.delete("22");*/    }}
     

 

 

/*以上个人整理笔记，如果有误或者有不懂的地方，欢迎评论与指出*/