CREATE TABLE cat (
cat_id varchar(20) NOT NULL,
NAME varchar(20) NOT NULL,
sex CHAR(1),
weight FLOAT,
PRIMARY KEY (cat_id)
); 

<?xml version="1.0"?>
<!DOCTYPE hibernate-mapping PUBLIC "-//Hibernate/Hibernate Mapping DTD//EN" "http://hibernate.sourceforge.net/hibernate-mapping-2.0.dtd">

<hibernate-mapping>

<class name="com.netease.wireless.groupsms.hbnt.po.Cat" table="cat">

<id name="id" type="string" unsaved-value="null" >
<column name="cat_id" sql-type="varchar(20)" not-null="true"/>
<generator class="uuid.hex"/>
</id>

<property name="name">
<column name="NAME" sql-type="varchar(20)" not-null="true"/>
</property>

<property name="sex"/>

<property name="weight"/>

</class>

</hibernate-mapping> 

package com.netease.wireless.groupsms.hbnt.po;

public class Cat ...{

private String id;
private String name;
private char sex;
private float weight;

public Cat() ...{
}

public String getId() ...{
return id;
}

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

public String getName() ...{
return name;
}

public void setName(String name) ...{
this.name = name;
}

public char getSex() ...{
return sex;
}

public void setSex(char sex) ...{
this.sex = sex;
}

public float getWeight() ...{
return weight;
}

public void setWeight(float weight) ...{
this.weight = weight;
}

public String toString() ...{
String strCat = new StringBuffer()
.append(this.getId()).append(", ")
.append(this.getName()).append(", ")
.append(this.getSex()).append(", ")
.append(this.getWeight())
.toString();

return strCat;
}
} 

<property name="connection.username">root</property>
<property name="connection.password">root</property>
<property name="connection.provider_class">
  net.sf.hibernate.connection.DatasourceConnectionProvider
  </property>
<property name="jndi.class">org.gjt.mm.mysql.Driver</property> 

<?xml version='1.0' encoding='UTF-8'?>
<!DOCTYPE hibernate-configuration PUBLIC
"-//Hibernate/Hibernate Configuration DTD 2.0//EN"
"http://hibernate.sourceforge.net/hibernate-configuration-2.0.dtd">

<!-- DO NOT EDIT: This is a generated file that is synchronized -->
<!-- by MyEclipse Hibernate tool integration. -->
<hibernate-configuration>

<session-factory>
<!-- properties -->
<property name="connection.datasource">java:comp/env/jdbc/test</property>
<property name="show_sql">true</property>
<property name="dialect">net.sf.hibernate.dialect.MySQLDialect</property>

<!-- mapping files -->
<mapping resource="com/netease/wireless/groupsms/hbnt/po/cat.hbm.xml"/>

</session-factory>

</hibernate-configuration>