hibernate-release-5.0.6.Final简单环境搭建

第一步：下载hibernate

去hibernate官网下载hibernate的最新版

http://hibernate.org/orm/downloads/

将下载的hibernate-release-5.0.6.Final.zip解压

hibernate的目录结构

    documentation目录是hibernate的文档    lib目录是hibernate所需jar包    project是hibernate提供的示例    changelog.txt是hibernate的更新说明    hibernate_logo.gif是hibernate的图标    lgpl.txt是一个LICENSE

第二步：添加jar包

将lib目录下required文件夹中的所有jar包添加到项目的classpath下

将lib/optional/c3p0目录下的所有jar包添加到项目的classpath下

hibernate还需要连接数据库，将mysql-connector-java-xxx.jar添加到项目的classpath下

第三步：编写hibernate配置文件hibernate.cfg.xml

hibernate.cfg.xml如下

<?xml version="1.0" encoding="GBK"?><!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>        <!-- 指定连接数据库所用的驱动 -->        <property name="connection.driver_class">com.mysql.jdbc.Driver</property>        <!-- 指定连接数据库的url，其中hibernate是本应用连接的数据库名 -->        <property name="connection.url">jdbc:mysql://localhost/hibernate_test</property>        <!-- 指定连接数据库的用户名 -->        <property name="connection.username">root</property>        <!-- 指定连接数据库的密码 -->        <property name="connection.password">cheng</property>        <!-- 指定连接池里最大连接数 -->        <property name="hibernate.c3p0.max_size">20</property>        <!-- 指定连接池里最小连接数 -->        <property name="hibernate.c3p0.min_size">1</property>        <!-- 指定连接池里连接的超时时长 -->        <property name="hibernate.c3p0.timeout">5000</property>        <!-- 指定连接池里最大缓存多少个Statement对象 -->        <property name="hibernate.c3p0.max_statements">100</property>        <property name="hibernate.c3p0.idle_test_period">3000</property>        <property name="hibernate.c3p0.acquire_increment">2</property>        <property name="hibernate.c3p0.validate">true</property>        <!-- 指定数据库方言 -->        <property name="dialect">org.hibernate.dialect.MySQL5InnoDBDialect</property>        <!-- 根据需要自动创建数据表 -->        <property name="hbm2ddl.auto">update</property><!--①-->        <!-- 显示Hibernate持久化操作所生成的SQL -->        <property name="show_sql">true</property>        <!-- 将SQL脚本进行格式化后再输出 -->        <property name="hibernate.format_sql">true</property>        <!-- 避免这个错误信息Disabling contextual LOB creation as createClob() method threw error :java.lang.reflect.InvocationTargetException -->        <property name="hibernate.temp.use_jdbc_metadata_defaults">false</property>        <!-- 罗列所有持久化类的类名 -->        <mapping class="com.test.dao.News"/>    </session-factory></hibernate-configuration>

将hibernate.cfg.xml放在src目录下

第四步：编写pojo并添加注解

package com.test.dao;import javax.persistence.Entity;import javax.persistence.GeneratedValue;import javax.persistence.GenerationType;import javax.persistence.Id;import javax.persistence.Table;@Entity@Table(name="news_inf")public class News {    @Id//主键    @GeneratedValue(strategy=GenerationType.IDENTITY)//自动增长    private Integer id;    // 消息标题    private String title;    // 消息内容    private String content;    public Integer getId() {        return id;    }    public void setId(Integer id) {        this.id = id;    }    public String getTitle() {        return title;    }    public void setTitle(String title) {        this.title = title;    }    public String getContent() {        return content;    }    public void setContent(String content) {        this.content = content;    }}

第五步：测试

package com.test.dao;import org.hibernate.Session;import org.hibernate.SessionFactory;import org.hibernate.boot.MetadataSources;import org.hibernate.boot.registry.StandardServiceRegistry;import org.hibernate.boot.registry.StandardServiceRegistryBuilder;public class Test {    public static void main(String[] args) {        final StandardServiceRegistry registry = new StandardServiceRegistryBuilder()                .configure() // configures settings from hibernate.cfg.xml                .build();        SessionFactory sessionFactory = null;        Session session = null;        try {            sessionFactory = new MetadataSources( registry ).buildMetadata().buildSessionFactory();            session = sessionFactory.openSession();            //开始事务            session.beginTransaction();            //创建对象            News news = new News();            news.setContent("123");            news.setTitle("678");            //保存对象            session.save(news);            //提交事务            session.getTransaction().commit();            //关闭session        }        catch (Exception e) {            session.getTransaction().rollback();            StandardServiceRegistryBuilder.destroy( registry );        }finally{            session.close();            sessionFactory.close();        }    }}

如图

参考文献

http://docs.jboss.org/hibernate/orm/5.0/quickstart/html/