1. 导入hibernate3 包
2.编写: hibernate.cfg.xml
<?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"> <!-- Generated by MyEclipse Hibernate Tools. --> <hibernate-configuration> <session-factory> <property name="dialect"> org.hibernate.dialect.MySQLDialect </property> <property name="connection.url"> jdbc:mysql://localhost:3306/student </property> <property name="connection.username">root</property> <property name="connection.password">root</property> <property name="connection.driver_class"> com.mysql.jdbc.Driver </property> <property name="myeclipse.connection.profile">student</property> <mapping resource="entyti/Student.hbm.xml" /> <mapping resource="entyti/Scj.hbm.xml" /> <mapping resource="entyti/Chengji.hbm.xml" /> </session-factory> </hibernate-configuration>
3.编写实体类映射文件
<hibernate-mapping> <class name="entyti.Student" table="student" catalog="student"> <id name="id" type="java.lang.Integer"> <column name="id" /> <generator class="identity" /> </id> <property name="name" type="java.lang.String"> <column name="name" /> </property> <property name="sex" type="java.lang.Short"> <column name="sex" /> </property> <property name="score" type="java.lang.Integer"> <column name="score" /> </property> <property name="dept" type="java.lang.String"> <column name="dept" /> </property> <property name="chengji" type="java.lang.String"> <column name="chengji" /> </property> <property name="classname" type="java.lang.String"> <column name="classname" /> </property> </class> </hibernate-mapping>
4. 编写实体类
5. 编写
public class BaseDaoTest { static SessionFactory sf =null; static{ Configuration cf = new Configuration().configure(); sf = cf.buildSessionFactory(); } public Session getSession(){ return sf.openSession(); } }
6.查询
public class HibernateTest extends BaseDaoTest { @Test public void select(){ //得到session Session session = this.getSession(); String sql ="from Student"; //查询出数据 List<Student>list = session.createQuery(sql).list(); for(Student stu:list){ System.out.println(stu.getId()); System.out.println(stu.getName()); } } } 7.添加
@Test public void add(){ //得到session Session session = this.getSession(); //得到事务 Transaction ts = session.beginTransaction(); try { //实例化对象 Student stu = new Student(); stu.setName("yuntaoss"); stu.setClassname("hhhhhhh"); //保存添加 session.save(stu); //提交事务 ts.commit(); } catch (Exception e) { ts.rollback(); } } //修改 @Test public void xiugai(){ //得到session Session session = this.getSession(); //得到事务 Transaction ts = session.beginTransaction(); try { //实例化对象 Student stu = (Student)session.get(Student.class,1); stu.setName("ssssssddd"); //保存添加修改 session.update(stu); //提交事务 ts.commit(); } catch (Exception e) { ts.rollback(); } } //删除
@Test public void deleteTest(){ //得到session Session session = this.getSession(); //得到事务 Transaction ts = session.beginTransaction(); try { //实例化对象 Student stu = (Student)session.get(Student.class,13); //删除 session. delete(stu); //提交事务 ts.commit(); } catch (Exception e) { ts.rollback(); } }