create table user(
userId int auto_increment,
userName varchar(16) not null,
password varchar(16) not null,
gender int not null,
primary key(userId)
);

package com.tiny.ssh.beans;public class User {private int userId;private String username;private String password;private int gender;public int getUserId() {return userId;}public void setUserId(int userId) {this.userId = userId;}public String getUsername() {return username;}public void setUsername(String username) {this.username = username;}public String getPassword() {return password;}public void setPassword(String password) {this.password = password;}public int getGender() {return gender;}public void setGender(int gender) {this.gender = gender;}}

<?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" ><hibernate-mapping package="com.tiny.ssh.beans"><class name="User" table="user"><id name="userId" column="userId"><generator class="native"></generator></id><property name="username" column="userName" type="java.lang.String"not-null="true" length="16"></property><property name="password" column="password" type="java.lang.String"not-null="true" length="16" /><property name="gender" column="gender" type="java.lang.Integer" length="1" /></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><!-- Database connection settings --><property name="connection.driver_class">com.mysql.jdbc.Driver</property><property name="connection.url">jdbc:mysql://localhost:3306/ssh</property><property name="connection.username">root</property><property name="connection.password">root</property><!-- JDBC connection pool (use the built-in) --><!-- <property name="connection.pool_size">1</property> --><!-- SQL dialect --><property name="dialect">org.hibernate.dialect.MySQLDialect</property><!-- Enable Hibernate's automatic session context management --><!-- <property name="current_session_context_class">thread</property> --><!-- Disable the second-level cache  --><!-- <property name="cache.provider_class">org.hibernate.cache.internal.NoCacheProvider</property> --><!-- Echo all executed SQL to stdout --><property name="show_sql">true</property><!-- Drop and re-create the database schema on startup --><!-- <property name="hbm2ddl.auto">update</property> --><mapping resource="com/tiny/ssh/beans/User.hbm.xml"/></session-factory>
</hibernate-configuration>

package com.tiny.ssh.daoImpl;import org.hibernate.HibernateException;
import org.hibernate.Session;
import org.hibernate.SessionFactory;
import org.hibernate.cfg.Configuration;
import org.hibernate.service.ServiceRegistry;
import org.hibernate.service.ServiceRegistryBuilder;public class HibernateSessionFactory {private static final String CFG_FILE_LOCATION = "/Hibernate.cfg.xml";private static final ThreadLocal<Session> threadLocal = new ThreadLocal<Session>();private static final Configuration cfg = new Configuration().configure(CFG_FILE_LOCATION);private static ServiceRegistryBuilder builder = new ServiceRegistryBuilder().applySettings(cfg.getProperties());private static ServiceRegistry registry;private static SessionFactory sessionFactory;public static Session currentSession() throws HibernateException {Session session = threadLocal.get();if (session == null || session.isOpen() == false) {if (sessionFactory == null) {try {registry = builder.buildServiceRegistry();sessionFactory = cfg.buildSessionFactory(registry);} catch (Exception e) {e.printStackTrace();}}session = sessionFactory.openSession();threadLocal.set(session);}return session;}public static void closeSession() throws HibernateException {Session session = threadLocal.get();threadLocal.set(null);if (session != null) {session.close();}}}

package com.tiny.ssh.serviceImp;import org.hibernate.HibernateException;
import org.hibernate.Session;
import org.hibernate.Transaction;import com.tiny.ssh.beans.User;
import com.tiny.ssh.dao.BaseDao;
import com.tiny.ssh.daoImpl.HibernateSessionFactory;
import com.tiny.ssh.daoImpl.UserDao;
import com.tiny.ssh.forms.UserForm;
import com.tiny.ssh.service.UserManager;public class UserManagerImpl implements UserManager {private BaseDao dao;private Session session;public UserManagerImpl() {dao = new UserDao();}@Overridepublic void regUser(UserForm userForm) throws HibernateException {session = HibernateSessionFactory.currentSession();dao.setSession(session);// 获取事务Transaction ts = session.beginTransaction();// 构造User对象User user = new User();user.setUsername(userForm.getUsername());user.setPassword(userForm.getPassword());user.setGender(userForm.getGender());// 保存User对象
        dao.saveObject(user);// 提交事务
        ts.commit();// 关闭Session
        HibernateSessionFactory.closeSession();}}