<?xml version="1.0" encoding="GBK"?> <project name="hibernate" basedir="." default=""> <property name="src" value="src"/> <property name="dest" value="classes"/> <path id="classpath"> <fileset dir="../../lib"> <include name="**/*.jar"/> </fileset> <pathelement path="${dest}"/> </path> <target name="compile" description="Compile all source code"> <delete dir="${dest}"/> <mkdir dir="${dest}"/> <copy todir="${dest}"> <fileset dir="${src}"> <exclude name="**/*.java"/> </fileset> </copy> <javac destdir="${dest}" debug="true" includeantruntime="yes" deprecation="false" optimize="false" failonerror="true"> <src path="${src}"/> <classpath refid="classpath"/> <compilerarg value="-Xlint:deprecation"/> </javac> </target> <target name="run" description="Run the main class" depends="compile"> <java classname="lee.NewsManager" fork="yes" failonerror="true"> <classpath refid="classpath"/> </java> </target> </project>
create table test( t_name varchar(255) );
<?xml version="1.0" encoding="GBK"?> <!-- 指定Hibernate配置文件的DTD信息 --> <!DOCTYPE hibernate-configuration PUBLIC "-//Hibernate/Hibernate Configuration DTD 3.0//EN" "http://www.hibernate.org/dtd/hibernate-configuration-3.0.dtd"> <!-- hibernate-configuration是配置文件的根元素 --> <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</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">32147</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库 --> <property name="hbm2ddl.auto">update</property> <!-- 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> <!-- 罗列所有持久化类的类名 --> <mapping resource="org/crazyit/app/domain/News.hbm.xml"/> </session-factory> </hibernate-configuration>
<?xml version="1.0" encoding="gb2312"?>
<!DOCTYPE hibernate-mapping PUBLIC
"-//Hibernate/Hibernate Mapping DTD 3.0//EN"
"http://www.hibernate.org/dtd/hibernate-mapping-3.0.dtd">
<!-- hibernate-mapping是映射文件的根元素 -->
<hibernate-mapping>
<!-- 使用data-object元素定义数据库对象 -->
<database-object>
<!-- 定义创建数据库对象的语句 -->
<create>create table test(t_name varchar(255));</create>
<!-- 让drop元素为空,不删除任何对象 -->
<drop></drop>
<!-- 指定仅对MySQL数据库有效 -->
<dialect-scope name="org.hibernate.dialect.MySQLDialect"/>
<dialect-scope name="org.hibernate.dialect.MySQL5InnoDBDialect"/>
</database-object>
</hibernate-mapping>
package lee; import org.hibernate.*; import org.hibernate.cfg.*; import org.hibernate.tool.hbm2ddl.*; import org.hibernate.service.*; import org.hibernate.boot.registry.*; /** * Description: * <br/>网站: <a href="http://www.crazyit.org">疯狂Java联盟</a> * <br/>Copyright (C), 2001-2016, Yeeku.H.Lee * <br/>This program is protected by copyright laws. * <br/>Program Name: * <br/>Date: * @author Yeeku.H.Lee kongyeeku@163.com * @version 1.0 */ public class NewsManager { public static void main(String[] args) throws Exception { // 实例化Configuration,configure()方法默认加载hibernate.cfg.xml文件 Configuration conf = new Configuration().configure(); // 以Configuration实例创建SessionFactory实例 ServiceRegistry serviceRegistry = new StandardServiceRegistryBuilder() .applySettings(conf.getProperties()).build(); // conf.buildSessionFactory(serviceRegistry); // 创建SchemaExport对象 SchemaExport se = new SchemaExport(conf); // 设置输出格式良好的SQL脚本 se.setFormat(true) // 设置保存SQL脚本的文件名 .setOutputFile("new.sql") // 输出SQL脚本,并执行SQL脚本 .create(true, true); } }