hibernate4.3.10环境搭建

标签：hibernate   数据库   struts2.0   ssh   hibernate.cfg.xml   

1、首先还是引入所需要的包

2、然后是配置hibernate.cfg.xml配置文件，连接mysql数据库信息，以及引入其他子模块的映射文件

<hibernate-configuration>
<session-factory>
	<!-- 数据库连接信息 -->
	<property name="show_sql">true</property>
	<property name="connection.url">jdbc:mysql://localhost:3306/test</property>
	<property name="connection.username">root</property>
	<property name="connection.password">root</property>
	<property name="connection.driver_class">com.mysql.jdbc.Driver</property>
	<property name="dialect">org.hibernate.dialect.MySQLDialect</property>
	<property name="hbm2ddl.auto">update</property>
	
	<mapping resource="/hibernateConfig/Login.hbm.xml" />
</session-factory>
</hibernate-configuration>

<hibernate-mapping package="com.demo.model">

    <class name="Login" table="login">
        <id name="id" column="id">
            <generator class="increment"/>
        </id>
        <property name="username" column="username" length="20"/>
        <property name="password" column="password" length="20"/>
    </class>

</hibernate-mapping>

public class Login {
	private int id;
	private String username;
	private String password;

	（getter/setter）

	public Login() {
	}

	public Login(int id, String username, String password) {
		super();
		this.id = id;
		this.username = username;
		this.password = password;
	}
}

LoginDao接口：

public interface LoginDao {
	public void saveLogin(Login login);

	public void deleteLogin(Login login);

	public void updateLogin(Login login);

	public Login findLogin(int id);

	public Login findLogin(String name);
}

public class LoginDaoImpl implements LoginDao {
	public void deleteLogin(Login login) {
		HibernateUtil.delete(login);
	}

	public Login findLogin(int id) {
		return (Login) HibernateUtil.findById(Login.class, id);
	}

	public Login findLogin(String name) {
		return (Login) HibernateUtil.findByName(name);
	}

	public void saveLogin(Login login) {
		HibernateUtil.add(login);
	}

	public void updateLogin(Login login) {
		HibernateUtil.update(login);
	}
}

LoginService接口：

public interface LoginService {
	public void save(Login login);

	public void delete(Login login);

	public void update(Login login);

	public Login findById(int id);

	public Login findByName(String name);
}

public class LoginServiceImpl implements LoginService {
	private LoginDao loginDao;

	public LoginDao getLoginDao() {
		return loginDao;
	}

	public void setLoginDao(LoginDao loginDao) {
		this.loginDao = loginDao;
	}

	public void delete(Login login) {
		loginDao.deleteLogin(login);
	}

	public Login findById(int id) {
		return loginDao.findLogin(id);
	}

	public Login findByName(String name) {
		return loginDao.findLogin(name);
	}

	public void save(Login login) {
		loginDao.saveLogin(login);
	}

	public void update(Login login) {
		loginDao.updateLogin(login);
	}
}

public class HibernateUtil {
	private static SessionFactory sf;
	static {
		Configuration cfg = new Configuration();
		cfg.configure("hibernateConfig/hibernate.cfg.xml");
		sf = cfg.buildSessionFactory();
	}

	public static Session getSession() {
		return sf.openSession();
	}

	public static void add(Object entity) {
		Session session = null;
		Transaction tx = null;
		try {
			session = HibernateUtil.getSession();
			tx = session.beginTransaction();
			session.save(entity);
			tx.commit();
		} catch (HibernateException e) {
			e.printStackTrace();
			throw e;
		} finally {
			if (session != null) {
				session.close();
			}
		}
	}

	public static void delete(Object entity) {
		Session session = null;
		Transaction tx = null;
		try {
			session = HibernateUtil.getSession();
			tx = session.beginTransaction();
			session.delete(entity);
			tx.commit();
		} catch (HibernateException e) {
			e.printStackTrace();
			throw e;
		} finally {
			if (session != null) {
				session.close();
			}
		}
	}

	public static void update(Object entity) {
		Session session = null;
		Transaction tx = null;
		try {
			session = HibernateUtil.getSession();
			tx = session.beginTransaction();
			session.update(entity);
			tx.commit();
		} catch (HibernateException e) {
			e.printStackTrace();
			throw e;
		} finally {
			if (session != null) {
				session.close();
			}
		}
	}

	public static Object findById(Class clazz, Serializable id) {
		Session session = null;
		try {
			session = HibernateUtil.getSession();
			Object ob = session.get(clazz, id);
			return ob;
		} catch (HibernateException e) {
			e.printStackTrace();
			throw e;
		} finally {
			if (session != null) {
				session.close();
			}
		}
	}

	public static Object findByName(String name) {
		Session session = null;
		try {
			session = HibernateUtil.getSession();
			Query query = session.createQuery("from test where name = :name");
			query.setParameter("name", name);
			Object ob = query.uniqueResult();
			return ob;
		} catch (HibernateException e) {
			e.printStackTrace();
			throw e;
		} finally {
			if (session != null) {
				session.close();
			}
		}
	}
}

注意：当hibernate.cfg.xml不放在src下时，在这里设置一下，让应用能找到这个配置文件

Configuration cfg = new Configuration();
		cfg.configure("hibernateConfig/hibernate.cfg.xml");

public String execute(){
		Login login=new Login();
		login.setUsername(getUsername());
		login.setPassword(getPassword());
		ls.save(login);
		return SUCCESS;
	}

<bean id="loginDao" class="com.demo.dao.daoImpl.LoginDaoImpl" />
	<bean id="loginService" class="com.demo.service.serviceImpl.LoginServiceImpl">
		<property name="loginDao" ref="loginDao" />
	</bean>
	<bean id="registerAction" class="com.demo.action.RegisterAction"
		scope="prototype">
		<property name="ls" ref="loginService" />
	</bean>

一个简单的注册页面中输入用户名密码，点击注册后保存到数据库中

数据库中保存成功

hibernate4.3.10环境搭建

标签：hibernate   数据库   struts2.0   ssh   hibernate.cfg.xml   

原文地址：http://blog.csdn.net/kevinxxw/article/details/47145189