思路：
1.导入hibernate jar包
2.导入mysql jar包
3.创建数据库
4.创建java实体类
5.编写hibernate.cfg.xml配置文件
6.编写dao类
目录：
数据表：
实体类：
package online.shixun.model;import java.util.Date;import javax.persistence.Column;import javax.persistence.Entity;import javax.persistence.GeneratedValue;import javax.persistence.GenerationType;import javax.persistence.Id;import javax.persistence.Table;/** * 实体类 * @author Tom * */@Entity@Table(name = "commodity")public class Commodity { ???????@Id ???@GeneratedValue(strategy = GenerationType.IDENTITY)//主键自增 ???private Integer id; ???????????@Column(name = "createDate") ???private Date createDate;//创建日期 ???????@Column(name = "described") ???private String describe;//商品描述 ???????@Column(name = "modifyDate") ???private Date modifyDate;//修改日期 ???????@Column(name = "name") ???private String name;//商品名称 ???????//构造函数 ???public Commodity(){ ???????????} ???????//带参构造函数 ???public Commodity(Date createDate,String describe,Date modifyDate,String name){ ???????this.createDate = createDate; ???????this.describe = describe; ???????this.modifyDate = modifyDate; ???????this.name = name; ???} ???public Integer getId() { ???????return id; ???} ???public void setId(Integer id) { ???????this.id = id; ???} ???public Date getCreateDate() { ???????return createDate; ???} ???public void setCreateDate(Date createDate) { ???????this.createDate = createDate; ???} ???public String getDescribe() { ???????return describe; ???} ???public void setDescribe(String describe) { ???????this.describe = describe; ???} ???public Date getModifyDate() { ???????return modifyDate; ???} ???public void setModifyDate(Date modifyDate) { ???????this.modifyDate = modifyDate; ???} ???public String getName() { ???????return name; ???} ???public void setName(String name) { ???????this.name = name; ???} ???@Override ???public String toString() { ???????return "Commodity [id=" + id + ", createDate=" + createDate + ", describe=" + describe + ", modifyDate=" ???????????????+ modifyDate + ", name=" + name + "]"; ???} ???????}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"><hibernate-configuration> ???<session-factory> ???????<!-- 数据库连接四项driverclass,url,username,password --> ???????<property name="hibernate.connection.driver_class">com.mysql.jdbc.Driver</property> ???????<property name="hibernate.connection.url">jdbc:mysql://localhost:3306/qsx_shop?characterEncoding=UTF-8</property> ???????<property name="hibernate.connection.username">root</property> ???????<property name="hibernate.connection.password">root</property> ???????????????<!-- Hibernate方言，Hibernateh会根据配置的方言产生对应的sql语句 --> ???????<property name="hibernate.dialect">org.hibernate.dialect.MySQLDialect</property> ???????????????<!-- 是否显示sql --> ???????<property name="hibernate.show_sql">true</property> ???????????????<!-- 是否格式化sql --> ???????<property name="hibernate.format_sql">true</property> ???????????????<!-- 配置数据实体类 --> ???????<mapping class="online.shixun.model.Commodity" /> ???</session-factory></hibernate-configuration>
DAO:
package online.shixun.test;//import java.sql.Date;import java.util.Date;import java.text.ParseException;import java.text.SimpleDateFormat;import org.hibernate.Session;import org.hibernate.SessionFactory;import org.hibernate.boot.registry.StandardServiceRegistry;import org.hibernate.boot.registry.StandardServiceRegistryBuilder;import org.hibernate.cfg.Configuration;import online.shixun.model.Commodity;public class HibernateDemo { ???????public static void main(String[] args) throws ParseException { ???????//获取配置文件 ???????Configuration configuration = new Configuration().configure(); ???????//注册服务对象 ???????StandardServiceRegistryBuilder serviceRegistryBuilder = new StandardServiceRegistryBuilder(); ???????StandardServiceRegistry serviceRegistry = serviceRegistryBuilder.applySettings(configuration.getProperties()).build(); ???????//获取SessionFactory ???????SessionFactory sessionFactory = configuration.buildSessionFactory(serviceRegistry); ???????//获取session ???????Session session = sessionFactory.openSession(); ???????//开启事务 ???????session.beginTransaction(); ???????//************开始操作*************// ???????//1. 利用 get 方法获取 id 为 1 的用户数据 ???????Commodity getCommodity = (Commodity) session.get(Commodity.class, 1); ???????System.out.println("创建日期:" + getCommodity.getCreateDate() + "描述:" + getCommodity.getDescribe() + "修改日期:" + getCommodity.getModifyDate() + "名称:" + getCommodity.getName()); ???????// ???????Date date = new Date(0); ???????String stringdate = "2019-05-07"; ???????Date date = ?new SimpleDateFormat("YYYY-MM-DD").parse(stringdate); ???????????????//2.增加商品// ???????Commodity newCommodity = new Commodity(date,"电器1",date,"电饭锅2");// ???????session.save(newCommodity); ???????????????//3.删// ???????Commodity getCommodity1 = (Commodity) session.load(Commodity.class, 2);// ???????session.delete(getCommodity1);// ???????session.getTransaction().commit(); ???????????????//4.改// ???????Commodity getCommodity2 = (Commodity) session.get(Commodity.class, 1);// ???????getCommodity2.setName("洗脸盆");// ???????session.update(getCommodity2);// ???????session.getTransaction().commit(); ???????//************结束操作*************// ???????????????????????//提交事务 ???????session.getTransaction(); ???????//关闭session ???????session.close(); ???????//关闭SessionFactory ???????sessionFactory.close(); ???}}Hibernate 配置文件有以下两种加载方式，如下：
//利用以下语句加载默认的 Hibernate 配置文件（名称：hibernate.cfg.xml）
Configuration configuration = new Configuration().configure();
//如果要自定义 Hibernate 配置文件名称，需要利用以下语句进行配置文件加载
Configuration configuration = new Configuration().configure("my-hibernate.cfg.xml");
Hibernate——简单的增、删、改、查操作
原文地址：http://www.cnblogs.com/yzp666/p/7529151.html