<?xml version='1.0' encoding='utf-8'?>
<!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>< !--数据库连接设置-->< !--数据库JDBC驱动设置--><property name="connection.driver_class"
>oracle.jdbc.driver.OracleDriver</property>< !--数据库url--><property name="connection.url"
>jdbc:oracle:thin:@localhost:1521:orcl</property>< !--数据库用户名--><property name="connection.username"
>lex</property>< !--数据库用户密码--><property name="connection.password"
>lex</property>< !--JDBC连接池(使用内置的)--><property name="connection.pool_size"
>1</property>< !--SQL方言--><property name="dialect"
>org.hibernate.dialect.Oracle10gDialect</property>< !--使Hibernate自动会话上下文管理--><property name="current_session_context_class"
>thread</property><!--关闭二级缓存--><property name="cache.provider_class"
>org.hibernate.cache.NoCacheProvider</property><!-- 是否将运行期间生成的sql输出到日志以供调试--><property name="show_sql"
>true</property>< !--在启动时,删除和重新创建数据表结构--><property name="hbm2ddl.auto"
>update</property><!-- 关联小配置--><mapping-resource>cn/lex/entity/Student.hbm.xml</mapping-resource>
</hibernate-configuration >

<?xml version="1.0"?>
<!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.lex.entity"><class name="Student" table="Student"><id name="id" column="id"><generator class="native"/></id><property name="name"></property></class></hibernate-mapping
>

package cn.lex.test;import cn.lex.entity.Student;
import org.hibernate.Query;
import org.hibernate.Session;
import org.hibernate.SessionFactory;
import org.hibernate.Transaction;
import org.hibernate.cfg.Configuration;
import org.junit.After;
import org.junit.Before;
import org.junit.Test;import java.util.List;/*** Created by accp on 2017/1/9.*/
public class FirstTest {Configuration cfg;  //配置对象Session session;   //会话对象Transaction tx;    //事务对象@Beforepublic void mybefore(){cfg=new Configuration().configure();  //获取配置对象SessionFactory factory = cfg.buildSessionFactory(); //获取sessionfactory对象session= factory.openSession();  //获取session对象tx= session.beginTransaction();  //开启事务}//添加学生@Testpublic void add(){Student stu=new Student();stu.setName("微冷的雨");session.save(stu);  //提交到数据库System.out.println("save ok!");}//根据条件查询学生姓名@Testpublic void select(){String hql="from Student where id=?";Query query = session.createQuery(hql);query.setParameter(0,26);Student stu =(Student) query.uniqueResult();System.out.println(stu.getName());}

    //修改学生姓名    @Test    public void update(){      Student stu=session.load(Student.class,serializable:1);      stu.setName("天空的星星");      System.out.println("update ok!");

    }

    //删除学生    @Test    public void delete(){        Student stu=session.load(Student.class,serializable:1);        session.delete(stu);        System.out.println("delete ok!");

    }

    //查询学生    @Test    public void select(){      Student stu=session.load(Student.class,serializable:1);      System.out.println("姓名："+stu.getName());    }@Afterpublic void after(){tx.commit();  //提交事务session.close();  //关闭session}
}