项目结构

使用jdk1.6和hibernate3

NewsManager.java代码如下:

package App;
import org.hibernate.Session;
import org.hibernate.SessionFactory;
import org.hibernate.Transaction;
import org.hibernate.cfg.Configuration;

import siso.wu.app.domain.News;

public class NewsManager {
    
    public static void main(String[] args)
        throws Exception {
        //实例化Configuration，
        Configuration conf = new Configuration() 
        
        //下面方法默认加载hibernate.cfg.xml文件
            .configure();
        //以Configuration创建SessionFactory
        SessionFactory sf = conf.buildSessionFactory();
        //创建Session
        Session sess = sf.openSession();
        //开始事务
        Transaction tx = sess.beginTransaction();
        //创建消息实例
        News n = new News();
        //设置消息标题和消息内容
        n.setTitle("NET开发人员");
        n.setContent("ASP.NET Web应用,以下是应用系统发布前，作为 .NET 开发人员需要检查的点");
        //保存消息
        sess.save(n);
        //提交事务
        tx.commit();
        //关闭Session
        sess.close();
        sf.close();
    }
}

---

News.java模型代码如下:

package siso.wu.app.domain;
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;
    }
}

---

News.hbm.xml映射文件

<?xml version="1.0" encoding="UTF-8"?>

<!DOCTYPE hibernate-mapping PUBLIC 
    "-//Hibernate/Hibernate Mapping DTD 3.0//EN"
    "http://www.hibernate.org/dtd/hibernate-mapping-3.0.dtd">

<hibernate-mapping>

   <!--name实体类的 包名+ 类名 table数据库的表名--> 
    <class name="siso.wu.app.domain.News" table="news_table">
        <!-- name对应实体类的属性id -->
        <id name="id" type="java.lang.Integer">
            <column name="id" />
             <!--主键的生成策略 native可以适应多种数据库  increment mysql自动增长策略  sequence oracle自动增长策略 -->
            <generator class="identity" />
        </id>
        <property name="title" type="java.lang.String">
            <column name="title" />
        </property>
        <property name="content" type="java.lang.String">
            <column name="content" />
        </property>
    </class>
</hibernate-mapping>

---

hibernate配置文件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>
        <!--配置数据库的驱动程序，Hibernate在连接数据库时，需要用到数据库的驱动程序-->  
        <property name="hibernate.connection.driver_class">com.mysql.jdbc.Driver</property>
        <!--用户名-->   
        <property name="hibernate.connection.username">test</property>
        <!--密码-->
        <property name="hibernate.connection.password">test</property>
        
        <!-- 连接mycat逻辑数据库 -->
        <property name="hibernate.connection.url">jdbc:mysql://localhost:8066/TESTDB</property>
        
        
        <!-- SQL方言，这边设定的是MySQL --> 
        <property name="hibernate.dialect">org.hibernate.dialect.MySQLInnoDBDialect</property>
        
        <!-- 显示SQL语句 -->
        <property name="show_sql">true</property>
        <property name="hibernate.format_sql">true</property>
        
         <!-- ddl语句自动建表 -->
        <property name="hibernate.hbm2ddl.auto">update</property>

       <!--映射文件 --> 
        <mapping resource="siso/wu/app/domain/News.hbm.xml" />
        
    </session-factory>
</hibernate-configuration>

Mycat配置,详情点击查看

<!-- 全局表是自动克隆到所有定义的数据节点，这样可以与拆分节点的任何表连接查询，是在同一个数据节点-->
<table name="news_table" primaryKey="ID" type="global" dataNode="dn1,dn2,dn3" />

运行结果