s2sh 实例代码，用户增删改查代码

package com.mei.dao; import java.util.List; import org.hibernate.LockMode; import org.slf4j.Logger; import org.slf4j.LoggerFactory; import org.springframework.context.ApplicationContext; import org.springframework.orm.hibernate3.support.HibernateDaoSupport; import com.mei.domain.User; /** * A data access object (DAO) providing persistence and search support for User * entities. Transaction control of the save(), update() and delete() operations * can directly support Spring container-managed transactions or they can be * augmented to handle user-managed Spring transactions. Each of these methods * provides additional information for how to configure it for the desired type * of transaction control. * * @see com.mei.domain.User * @author MyEclipse Persistence Tools */ public class UserDaoImpl extends HibernateDaoSupport implements UserDao { private static final Logger log = LoggerFactory.getLogger(UserDaoImpl.class); // property constants public static final String NAME = "name"; public static final String PASSWD = "passwd"; public static final String PHONE = "phone"; public static final String ADDRESS = "address"; public void save(User transientInstance) { log.debug("saving User instance"); try { getHibernateTemplate().saveOrUpdate(transientInstance); log.debug("save successful"); } catch (RuntimeException re) { log.error("save failed", re); throw re; } } public void delete(User persistentInstance) { log.debug("deleting User instance"); try { getHibernateTemplate().delete(persistentInstance); log.debug("delete successful"); } catch (RuntimeException re) { log.error("delete failed", re); throw re; } } public User findById(java.lang.Integer id) { log.debug("getting User instance with id: " + id); try { User instance = (User) getHibernateTemplate().get( "com.mei.domain.User", id); return instance; } catch (RuntimeException re) { log.error("get failed", re); throw re; } } public List<User> findByExample(User instance) { log.debug("finding User instance by example"); try { List<User> results = (List<User>) getHibernateTemplate() .findByExample(instance); log.debug("find by example successful, result size: " + results.size()); return results; } catch (RuntimeException re) { log.error("find by example failed", re); throw re; } } public List findByProperty(String propertyName, Object value) { log.debug("finding User instance with property: " + propertyName + ", value: " + value); try { String queryString = "from User as model where model." + propertyName + "= ?"; return getHibernateTemplate().find(queryString, value); } catch (RuntimeException re) { log.error("find by property name failed", re); throw re; } } public List<User> findByName(Object name) { return findByProperty(NAME, name); } public List<User> findByPasswd(Object passwd) { return findByProperty(PASSWD, passwd); } public List<User> findByPhone(Object phone) { return findByProperty(PHONE, phone); } public List<User> findByAddress(Object address) { return findByProperty(ADDRESS, address); } public List findAll() { log.debug("finding all User instances"); try { String queryString = "from User"; return getHibernateTemplate().find(queryString); } catch (RuntimeException re) { log.error("find all failed", re); throw re; } } public User merge(User detachedInstance) { log.debug("merging User instance"); try { User result = (User) getHibernateTemplate().merge(detachedInstance); log.debug("merge successful"); return result; } catch (RuntimeException re) { log.error("merge failed", re); throw re; } } public void attachDirty(User instance) { log.debug("attaching dirty User instance"); try { getHibernateTemplate().saveOrUpdate(instance); log.debug("attach successful"); } catch (RuntimeException re) { log.error("attach failed", re); throw re; } } public void attachClean(User instance) { log.debug("attaching clean User instance"); try { getHibernateTemplate().lock(instance, LockMode.NONE); log.debug("attach successful"); } catch (RuntimeException re) { log.error("attach failed", re); throw re; } } }