使用schemaExport自动生成表结构

一．Hibernate原生状态

 

Configuration cfg = new Configuration().configure();

SchemaExport export = new SchemaExport(cfg);

export.create( true , true );

 

二．Hibernate整合Spring

       1.使用hibernate.cfg.xml原生配置

              hibernate.cfg.xml同原生一样编写

              在Spring主配置文件applicationContext中，引入hibernate.cfg.xml

             使用SchemaExport生成数据库表的代码同上一致。

Spring applicationContext.xml

< bean id = "sessionFactory"

   class = "org.springframework.orm.hibernate3.LocalSessionFactoryBean" >

      < property name = "configLocation"

        value = "file:src/hibernate.cfg.xml" >

      </ property >

</ bean >

       2.不使用hibernate.cfg.xml,在Spring的主配置文件applicationContext.xml中配置

              完全不编写hibernate.cfg.xml，全部都在applicationContext.xml中配置   

ClassPathResource ac = new ClassPathResource( "applicationContext.xml" );

     XmlBeanFactory xbf = new XmlBeanFactory(ac);

     //注意： &sessionFactory ，一定要包含 & ，不加Spring返回的是Hibernate下的SessionFactoryImpl类

     LocalSessionFactoryBean lsfb=(LocalSessionFactoryBean) xbf.getBean( "&sessionFactory" );

     Configuration cfg=lsfb.getConfiguration();

     SchemaExport export= new SchemaExport(cfg);

     export.create( true , false );

<!-- 配置数据源--> < bean id = "dataSource" class = "org.springframework.jdbc.datasource.DriverManagerDataSource" > < property name = "driverClassName" value = "${jdbc.driverClassName}" /> < property name = "url" value = "${jdbc.url}" /> < property name = "username" value = "${jdbc.username}" /> < property name = "password" value = "${jdbc.password}" /> </ bean > <!-- 配置sessionfactory，该配置替代了hibernate.cfg.xml的配置 --> < bean id = "sessionFactory" class = "org.springframework.orm.hibernate3.LocalSessionFactoryBean" > < property name = "dataSource" ref = "dataSource" ></ property > < property name = "mappingResources" > < list > < value >xxx/xxx/model/User.hbm.xml</ value > </ list > </ property > < property name = "hibernateProperties" > < props > < prop key = "hibernate.dialect" >org.hibernate.dialect.MySQLDialect</ prop > < prop key = "hibernate.show_sql" >true</ prop > < prop key = "hibernate.format_sql" >true</ prop > </ props > </ property > </ bean >