public class Account {/* 一定要生成 setter getter 方法，否则包异常 */private int accountId;private String name;private int age;private String nickName;public int getAccountId() {return accountId;}public void setAccountId(int accountId) {this.accountId = accountId;}public String getName() {return name;}public void setName(String name) {this.name = name;}public int getAge() {return age;}public void setAge(int age) {this.age = age;}public String getNickName() {return nickName;}public void setNickName(String nickName) {this.nickName = nickName;}}

<?xml version="1.0"?>
<!DOCTYPE hibernate-mapping PUBLIC "-//Hibernate/Hibernate Mapping DTD 3.0//EN""http://www.hibernate.org/dtd/hibernate-mapping-3.0.dtd">
<hibernate-mapping package="gy.hibernate"><class name="Account" table="accounts"><!-- 主键 ，映射 --><id name="accountId" column="id"><generator class="native" /></id><!-- 非主键，映射 --><property name="name" column="name"></property><property name="age" column="age"></property><property name="nickName" column="nick_name"></property></class></hibernate-mapping>

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE hibernate-configuration PUBLIC"-//Hibernate/Hibernate Configuration DTD 3.0//EN""http://www.hibernate.org/dtd/hibernate-configuration-3.0.dtd"><hibernate-configuration><session-factory><!-- 数据库连接配置 --><!-- 配置数据库驱动 --><property name="hibernate.connection.driver_class">com.mysql.jdbc.Driver</property><!-- 配置数据库url --><property name="hibernate.connection.url">jdbc:mysql:///hibernate_db</property><!-- mysql账号 --><property name="hibernate.connection.username">root</property><!-- mysql密码 --><property name="hibernate.connection.password"></property><property name="hibernate.dialect">org.hibernate.dialect.MySQL5Dialect</property><!-- 调试打印日志 --><property name="hibernate.show_sql">true</property><!-- 加载所有映射 --><mapping resource="gy/hibernate/Account.hbm.xml"/></session-factory>
</hibernate-configuration>

　　public String register() {System.out.println("开始注册-------------------------");Account account = new Account();// account.setAccountId(1);account.setName("xiao gang");account.setAge(15);account.setNickName("xg");// 获取加载配置文件的管理类对象Configuration config = new Configuration();config.configure(); // 默认加载src/hibenrate.cfg.xml文件// 创建session的工厂对象SessionFactory sf = config.buildSessionFactory();// 创建session (代表一个会话，与数据库连接的会话)Session session = sf.openSession();// 开启事务Transaction tx = session.beginTransaction();// 保存-数据库session.save(account);// 提交事务tx.commit();// 关闭session.close();sf.close();return SUCCESS;}