Hibernate (操作步骤)

 1 <?xml version="1.0" encoding="UTF-8"?> 2 <!DOCTYPE hibernate-configuration PUBLIC 3 ????????"-//Hibernate/Hibernate Configuration DTD 3.0//EN" 4 ????????"http://hibernate.sourceforge.net/hibernate-configuration-3.0.dtd"> 5 <hibernate-configuration> 6 ????<session-factory> 7 ????????<!-- 配置连接数据库的基本信息 --> 8 ????????<property name="connection.username">root</property> 9 ????????<property name="connection.password">root</property>10 ????????<property name="connection.driver_class">com.mysql.jdbc.Driver</property>11 ????????<property name="connection.url">jdbc:mysql:///hibernate5</property>12 ????????13 ????????<!-- 配置hibernate的基本信息 -->14 ????????<!-- hibernate所使用的数据库方言 -->15 ????????<property name="dialect">org.hibernate.dialect.MySQLInnoDBDialect</property>16 ????????17 ????????<!-- 执行操作时是否在控制台打印SQL -->18 ????????<property name="show_sql">true</property>19 ????????20 ????????<!-- 是否对SQL进行格式化 (分行显示)-->21 ????????<property name="format_sql">true</property>22 ????????23 ????????<!-- 指定自动生成数据表的策略 -->24 ????????<property name="hbm2ddl.auto">update</property>25 ????????26 ????????27 ????</session-factory>28 </hibernate-configuration>

 1 package com.tzy.hibernate; 2 ?3 import java.util.Date; 4 ?5 public class News { 6 private Integer id; 7 private String title; 8 private String author; 9 private Date date;10 public Integer getId() {11 ????return id;12 }13 public void setId(Integer id) {14 ????this.id = id;15 }16 public String getTitle() {17 ????return title;18 }19 public void setTitle(String title) {20 ????this.title = title;21 }22 public String getAuthor() {23 ????return author;24 }25 public void setAuthor(String author) {26 ????this.author = author;27 }28 public Date getDate() {29 ????return date;30 }31 public void setDate(Date date) {32 ????this.date = date;33 }34 35 public News(String title, String author, Date date) {36 ????super();37 ????this.title = title;38 ????this.author = author;39 ????this.date = date;40 }41 public News() {42 ????super();43 }44 @Override45 public String toString() {46 ????return "News [id=" + id + ", title=" + title + ", author=" + author + "]";47 }48 49 }

 1 <?xml version="1.0"?> 2 <!DOCTYPE hibernate-mapping PUBLIC "-//Hibernate/Hibernate Mapping DTD 3.0//EN" 3 "http://hibernate.sourceforge.net/hibernate-mapping-3.0.dtd"> 4 <!-- Generated 2017-11-19 16:22:35 by Hibernate Tools 3.4.0.CR1 --> 5 <hibernate-mapping> 6 ????<class name="com.tzy.hibernate.News" table="NEWS"> 7 ????????<id name="id" type="java.lang.Integer"> 8 ????????????<column name="ID" /> 9 ????????????<!-- 指定逐渐生成的方式，native:使用数据库本地方式 -->10 ????????????<generator class="native" />11 ????????</id>12 ????????13 ????????<property name="title" type="java.lang.String">14 ????????????<column name="TITLE" />15 ????????</property>16 ????????17 ????????<property name="author" type="java.lang.String">18 ????????????<column name="AUTHOR" />19 ????????</property>20 ????????21 ????????<property name="date" type="java.util.Date">22 ????????????<column name="DATE" />23 ????????</property>24 ????????25 ????</class>26 </hibernate-mapping>

 1 package com.tzy.hibernate; 2 ?3 import java.util.Date; 4 ?5 import org.hibernate.Session; 6 import org.hibernate.SessionFactory; 7 import org.hibernate.Transaction; 8 import org.hibernate.boot.MetadataSources; 9 import org.hibernate.boot.registry.StandardServiceRegistry;10 import org.hibernate.boot.registry.StandardServiceRegistryBuilder;11 import org.junit.Test;12 13 public class HibernateTest {14 ????15 ????@Test16 ????public void test() {17 ????????//1.创建一个SessionFactory对象18 ????????SessionFactory sessionFactory = null;19 ????????20 ????????//hibernate4获取sessionFactory办法21 ????????//1).创建Configuration对象：对应hibernate的基本配置信息和关系映射信息22 ????????//Configuration configuration = new Configuration().configure();23 ????????//4.0之前这样创建24 ????????//sessionFactory = configuration.buildSessionFactory();25 ????????//2).创建一个ServiceRegistry对象：hibernate 4.x新添加的对象26 ????????//hibernate的任何配置和服务都需要在该对象中注册后才能有效。27 ????????//ServiceRegistry serviceRegistry = new ServiceRegistryBuilder().applySettings(configuration.getProperties())28 ????????// ???????????????????????????????????????????????????????????????.buildServiceRegistry();29 ????????//3).30 ????????//sessionFactory = configuration.buildSessionFactory(serviceRegistry);31 ????????32 ????????//4).33 ????????//hibernate5获取sessionFactory办法34 ????????//创建StandardServiceRegistry对象(标准服务注册)35 ????????StandardServiceRegistry standardServiceRegistry = new StandardServiceRegistryBuilder().configure().build();36 ????????37 ????????sessionFactory = new MetadataSources(standardServiceRegistry).buildMetadata().buildSessionFactory();38 ????????//2.创建一个Session对象39 ????????Session session = sessionFactory.openSession();40 ????????41 ????????//3.开启事物42 ????????Transaction transaction = session.beginTransaction();43 ????????44 ????????//4.执行保存操作45 ????????News news = new News("Java", "Tzy", new Date());46 ????????session.save(news);47 ????????48 ????????//5.提交事物49 ????????transaction.commit();50 ????????51 ????????//6.关闭Session52 ????????session.close();53 ????????54 ????????//7.关闭SessionFactory对象55 ????????sessionFactory.close();56 ????}57 58 }