<?xml version="1.0" encoding="utf-8"?>
<!DOCTYPE hibernate-mapping PUBLIC
"-//Hibernate/Hibernate Mapping DTD 3.0//EN"
"http://hibernate.sourceforge.net/hibernate-mapping-3.0.dtd">
<!-- <?xml version='1.0' encoding='UTF-8'?>
<!DOCTYPE hibernate-configuration PUBLIC
"-//Hibernate/Hibernate Configuration DTD 3.0//EN"
"http://hibernate.sourceforge.net/hibernate-configuration-3.0.dtd"> --><!--这是hibernate配置文件的头,注意两者之间的区别 -->
<hibernate-mapping>
<class name="com.test.bean.User" table="users">
<id name="id" type="java.lang.Integer" column="id">
<generator class="increment"></generator>
</id>
<property name="firstname" type="string" column="firstname" length="50"></property>
<property name="lastname" type="string" column="lastname" length="50"></property>
<property name="age" type="java.lang.Integer" column="age"></property>
</class>
</hibernate-mapping>
注:一般以.hbm.xml作为后缀
这是对象和关系数据库之间的映射!
对照数据库表!