使用休眠将Excel工作表映射到数据库

Question

I have some master data to populate in the database and this is a one time activity done at the time of the very first execution. I have decided to maintain the data in multiple sheets in an excel file. There are some relationships in the database which i have to care of in the excel sheet. This sheet will be read using an API(POI) and the data will be persisted using hibernate.

Please suggest if this is the right approach or there are better ways to handle this? Is there any other way to dump the excel into the database using hibernate(need a single excel file and support 5 types of databases)?

Answer 1

Using excel and POI you can achieve this but as you are asking for other way so here it is:

If you are sure that this is one time activity then you can use hibernate.hbm2ddl.import_files property which will execute .sql file at the time of DB creation.

Add hibernate property hibernate.hbm2ddl.import_files in your hibernate configuration. Change hibernate.hbm2ddl.aut o property to create . value of property hibernate.hbm2ddl.import_files is an SQL file which is @ /classes folder.

Session factory bean will look like

<bean id="sessionFactory"
    class="org.springframework.orm.hibernate4.LocalSessionFactoryBean">
    <property name="dataSource" ref="dataSource" />
    <property name="hibernateProperties">
        <props>
            <prop key="hibernate.dialect">${hibernate.dialect}</prop>
            <prop key="hibernate.show_sql">${hibernate.show_sql}</prop>
            <prop key="hibernate.hbm2ddl.auto">create</prop>
            <prop key="hibernate.hbm2ddl.import_files">initial_data.sql</prop>
        </props>
    </property>
</bean>