hibernate生成数据库表

hibernate生成数据库表

注：使用前需把数据库建好，运行完成后，原有数据会被清空

hibernate.cfg.xml

<?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">
<hibernate-configuration>
	<session-factory>
		<property name="hibernate.connection.driver_class">com.microsoft.sqlserver.jdbc.SQLServerDriver</property>
		<property name="hibernate.connection.url">jdbc:sqlserver://192.168.56.101:1433;databasename=TestDB</property>
		<property name="hibernate.connection.username">sa</property>
		<property name="hibernate.connection.password">admin</property>
		<property name="hibernate.dialect">org.hibernate.dialect.SQLServerDialect</property>
		<property name="hibernate.show_sql">true</property>
		<property name="hibernate.cache.provider_class">org.hibernate.cache.HashtableCacheProvider</property>
		<property name="connection.autoReconnect">true</property>
		<property name="connection.autoReconnectForPools">true</property>
		<property name="connection.is-connection-validation-required">true</property>
		<property name="hibernate.c3p0.min_size">2</property>
		<property name="hibernate.c3p0.timeout">5000</property>
		<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">false</property>

		<mapping resource="com/lvy/server/model/Test.hbm.xml" />
	</session-factory>
</hibernate-configuration>

Java 代码

import java.io.File;

import org.hibernate.HibernateException;
import org.hibernate.Session;
import org.hibernate.SessionFactory;
import org.hibernate.Transaction;
import org.hibernate.cfg.Configuration;
import org.hibernate.tool.hbm2ddl.SchemaExport;

/**
 * 经过hibernate配置文件生成数据库表
 * 
 * @author Albert Smith
 *
 */
public class InitDB {
	static Session session;

	public static void main(String[] args) {
		Configuration config = null;
		Transaction tx = null;
		try {
			config = new Configuration().configure(new File("config/hibernate.cfg.xml"));   //读取hibernate配置文件
			System.out.println("开始创表");
			SchemaExport schemaExport = new SchemaExport(config);
			schemaExport.create(true, true);
			System.out.println("建立结束");
			SessionFactory sessionFactory = config.buildSessionFactory();
			session = sessionFactory.openSession();
			tx = session.beginTransaction();
			tx.commit();
		} catch (HibernateException e) {
			e.printStackTrace();
			try {
				tx.rollback();
			} catch (HibernateException e1) {
				e1.printStackTrace();
			}
		} finally {

		}
	}
}

每次修改hibernate配置文件后，运行一下，就能够自动更新表结构。