1、在pojo类中 用Blob类和Clob

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public class Student {
    private int id;
    private String name;
    private int age;
    //存放大数据  可以存放4G的内容
    private Blob image;
    private Clob introduce;
    //省略get/set
}

2、在hbm文件中，需指定对应类型

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<hibernate-mapping package="cn.siggy.pojo">
    <class name="Student">
        <id name="id">
            <generator class="native"></generator>
        </id>
        <property name="name"/>
        <property name="age"/>
        <property name="image" type="java.sql.Blob"/>
        <property name="introduce" type="java.sql.Clob"/>
    </class>
</hibernate-mapping>

3、 构造对象, 测试

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@Test
public void testSave() throws HibernateException, SerialException, SQLException{
    Session session = null;
    Transaction tx = null;
    try{
        session = HibernateUtil.getSession();
        tx = session.beginTransaction();
        Student stu = new Student();
        stu.setName("尹志平");
        stu.setAge(23);

        Blob blob = new SerialBlob("ttt".getBytes());
        Clob clob = new SerialClob("sss".toCharArray());
        stu.setImage(blob);
        stu.setIntroduce(clob);
        session.save(stu);

        tx.commit();

    }catch (HibernateException e) {
        if(tx!=null)
            tx.rollback();
        e.printStackTrace();
        throw e;
    }finally{
        HibernateUtil.closeSession();
    }
}