目前，我们正在使用Hibernate 3，我们使用Hibernate工具生成数据库架构的SQL脚本。
我们用下面的Ant任务
<hibernatetool destdir="${target}">
<jpaconfiguration persistenceunit="@{persistenceUnit}" propertyfile="@{propertyfile}"/>
<classpath refid="@{classpathid}"/>
<!-- the file name is relative to $destdir -->
<hbm2ddl outputfilename="@{output}" format="true" export="false" drop="false"/>
</hibernatetool>
我们想切换到休眠4：我们如何能够实现无休眠的工具类似的东西？
您可以直接使用的SchemaExport类生成DDL脚本：
Configuration config = new Configuration();
Properties properties = new Properties();
properties.put("hibernate.dialect", "org.hibernate.dialect.PostgreSQLDialect");
properties.put("hibernate.connection.url", "jdbc:postgresql://localhost:5432/Test");
properties.put("hibernate.connection.username", "username");
properties.put("hibernate.connection.password", "password");
properties.put("hibernate.connection.driver_class", "org.postgresql.Driver");
properties.put("hibernate.show_sql", "true");
config.setProperties(properties);
config.addAnnotatedClass(MyMappedPojo1.class);
config.addAnnotatedClass(MyMappedPojo2.class);
..................
SchemaExport schemaExport = new SchemaExport(config);
schemaExport.setDelimiter(";");
/**Just dump the schema SQLs to the console , but not execute them ***/
schemaExport.create(true, false);
