1.下载页面
http://in.relation.to/Bloggers/HibernateORM422FinalReleased
2.解压hibernate,将lib目录下面的required目录下所有的jar包拷贝到我们的应用中的类加载路径，如果是web应用，放在/WEB-INF/lib/ 下面
3.如果需要用到数据库源那么将c3p0也放在/WEB-INF/lib/ 下面
4.创建一个持久化的类。这个类的实例将会被hibernate映射到数据库中对应的实例:
| 代码如下 |
复制代码 |
|
package org.Rudiment.hibernate;
public class News
{
private Integer id;
private String title;
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;
}
}
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5.配置News这个类专属的映射文件News.hbm.xml
6.hibernate的框架配置 /WEB-INF/classes/hibernate.cfg.xml
| 代码如下 |
复制代码 |
|
"-//Hibernate/Hibernate Configuration DTD 3.0//EN"
"http://www.hibernate.org/dtd/hibernate-configuration-3.0.dtd">
org.hibernate.dialect.MySQLDialect
com.mysql.jdbc.Driver
root
word">root
jdbc:mysql://localhost:3306/failure
20
1
5000
true
true
true
100
3000
2
true
update
|
7.写一个类来作为测试:
| 代码如下 |
复制代码 |
|
package org.Rudiment.hibernate;
import org.Rudiment.hibernate.News;
import org.hibernate.Session;
import org.hibernate.SessionFactory;
import org.hibernate.Transaction;
import org.hibernate.cfg.Configuration;
import org.hibernate.service.ServiceRegistry;
import org.hibernate.service.ServiceRegistryBuilder;
public class NewsManager
{
public static void main(String[] args)
{
//获取配置
Configuration conf = new Configuration().configure();
//获取ServiceRegistry
ServiceRegistry sr = new ServiceRegistryBuilder()
.applySettings(conf.getProperties())
.buildServiceRegistry();
//配置我们的SessionFactory
SessionFactory sf = conf.buildSessionFactory(sr);
//获取我们的Session
Session sess = sf.openSession();
//开始我们的事务
Transaction tx = sess.beginTransaction();
News n = new News();
n.setTitle("ITkezhan");
n.setContent("IT客栈");
//保存持久化对象
sess.save(n);
//提交事务
tx.commit();
//关闭Session
sess.close();
//关闭SessionFactory
sf.close();
}
}
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8.运行一下 NewsManager 之后,可以看到hibernate数据库中多了一张表 news_table内容如下:(要事先在MySQL中创建hibernate这个数据库。不然的话并不会自动创建hibernate数据库)
| 代码如下 |
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|
mysql> use hibernate;
Database changed
mysql> select * from news_table;
+----+---------------+-------------------------+
| ID | title | content |
+----+---------------+-------------------------+
| 1 | ITkezhan | IT客栈 |
+----+---------------+-------------------------+
1 row in set (0.00 sec)
|
