hibernate 类生成表 的实现源码

第一步：
在test包中创建一个生成表的java类：

package com.test;

import org.hibernate.cfg.Configuration;
import org.hibernate.tool.hbm2ddl.SchemaExport;

public class 生成表 {

	/**
	 * @param args
	 */
	public static void main(String[] args) {
		Configuration cfg = new Configuration().configure();
		SchemaExport ex   = new SchemaExport(cfg);
		ex.create(true, true);
		
	}

}

第二步：
写一个创建session的类：

package com.test;

import org.hibernate.Session;
import org.hibernate.SessionFactory;
import org.hibernate.cfg.Configuration;

public class HibernateSessionFactory {
	private static Configuration cfg = new Configuration().configure();
	private static SessionFactory factory = cfg.buildSessionFactory();
	private static ThreadLocal<Session> local  = new ThreadLocal<Session>();
	
	public static Session getSession(){
		Session session = local.get(); //取
		if (session==null || session.isOpen()==false){
			session = factory.openSession();
			local.set(session); //存
		}
		return session;
	}
    
}

第三步：
修改hibernate的配置文件相关属性、驱动。

<?xml version='1.0' encoding='UTF-8'?>
<!DOCTYPE hibernate-configuration PUBLIC
          "-//Hibernate/Hibernate Configuration DTD 3.0//EN"
          "http://hibernate.sourceforge.net/hibernate-configuration-3.0.dtd">

<!-- Generated by MyEclipse Hibernate Tools.                   -->
<hibernate-configuration>

	<session-factory>
		<property name="myeclipse.connection.profile">【这里是什么数据库就写什么】mysql</property>
		<property name="connection.url">
			【数据库连接是什么数据库写什么数据库test
】jdbc:mysql://localhost:3306/test
		</property>
		<property name="dialect">
			【是mysql就写mysql orc就orc】org.hibernate.dialect.MySQLDialect
		</property>
		<property name="connection.username">root</property>
	<property name="connection.password">admin</property>
		<property name="connection.driver_class">
			【驱动要改 】com.mysql.jdbc.Driver
		</property>
		<property name="show_sql">true</property>
		<property name="format_sql">true</property>
		<mapping resource="com/pojos/TSaleformDetail3.hbm.xml" />
		<mapping resource="com/pojos/TSaleform3.hbm.xml" />

	</session-factory>

</hibernate-configuration>

第四步 改pojo映射文件：

<hibernate-mapping>
    <class name="com.pojos.TSaleform3" table="T_SALEFORM3" schema="test">【这地方的schema=“数据库名字”
】