<property name="price" column="price" type="float"/>

# Host: localhost
# Database: test
# Table: 'test2'
# 
CREATE TABLE `test2` (
  `id`  int ( 11 ) NOT  NULL  auto_increment,
  `price` decimal( 10 , 2 ) NOT  NULL   default  '0.00',
  PRIMARY KEY  (`id`)
) ENGINE=MyISAM  DEFAULT  CHARSET=latin1; 

 package  somepackage;

 public   class  Good {
     private   int  id;
     private   float  price;

     public   int  getId() {
         return  id;
    }

     public   void  setId( int  id) {
         this .id = id;
    }

     public   float  getPrice() {
         return  price;
    }

     public   void  setPrice( float  price) {
         this .price = price;
    }
}

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE hibernate-mapping  PUBLIC  "-//Hibernate/Hibernate Configuration DTD//EN"
        "http://hibernate.sourceforge.net/hibernate-mapping-3.0.dtd">

<hibernate-mapping  package ="somepackage">
    < class  name="Good" lazy="false" optimistic-lock="none" table="test2">
        <id column="id" type="int" name="id">
            <generator  class ="native"/>
        </id>
        <property name="price" type="float">
            <column name="price" sql-type="numeric(10,2)"/>
        </property>
    </ class >
</hibernate-mapping>

 import  org.hibernate.SessionFactory;
 import  org.hibernate.Transaction;
 import  org.hibernate.cfg.Configuration;
 import  org.hibernate.classic.Session;
 import  somepackage.Good;

 public   class  Test4 {
     public   static   void  main(String[] args) {
        Configuration configuration =  new  Configuration();
        configuration.configure();
        configuration.addClass(Good. class );

        SessionFactory sessionFactory = configuration.buildSessionFactory();
        Session session = sessionFactory.openSession();

        Transaction tx = session.beginTransaction();
         try  {

            Good good =  new  Good();
            good.setPrice( 10 .26f);

            session.save(good);
            tx.commit();
        }  catch  (Exception e) {
            tx.rollback();
        }

        session.close();
    }
}

<?xml version='1.0' encoding='utf-8'?>
<!DOCTYPE hibernate-configuration
     PUBLIC  "-//Hibernate/Hibernate Configuration DTD//EN"
    "http://hibernate.sourceforge.net/hibernate-configuration-3.0.dtd">

<hibernate-configuration>
    <session-factory>
        <property name="show_sql">false</property>
        <property name="dialect">org.hibernate.dialect.MySQLDialect</property>
        <property name="cglib.use_reflection_optimizer">true</property>

        <property name="hibernate.connection.driver_class">com.mysql.jdbc.Driver</property>
        <property name="hibernate.connection.url">jdbc:mysql://localhost/test</property>

        <property name="hibernate.connection.username">root</property>
        <property name="hibernate.connection.password"></property>
        <property name="hibernate.connection.pool_size"> 4 </property>
        <property name="hibernate.statement_cache.size"> 0 </property>

        <property name="hibernate.c3p0.max_size"> 5 </property>
        <property name="hibernate.c3p0.min_size"> 0 </property>
        <property name="hibernate.c3p0.timeout"> 120 </property>
        <property name="hibernate.c3p0.max_statements"> 100 </property>
        <property name="hibernate.c3p0.idle_test_period"> 0 </property>
        <property name="hibernate.c3p0.acquire_increment"> 2 </property>

        <property name="hibernate.jdbc.batch_size"> 20 </property>
        <property name="hibernate.cache.use_second_level_cache">false</property>
        <property name="hibernate.cache.use_query_cache">true</property>
    </session-factory>
</hibernate-configuration>