ssh案例（登录动态生成菜单）

package com.dao.impl; 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.dao.UserDao; import com.vo.Users; /** * A data access object (DAO) providing persistence and search support for Users * 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.vo.Users * @author MyEclipse Persistence Tools */ public class UsersDaoImpl extends HibernateDaoSupport implements UserDao { private static final Logger log = LoggerFactory.getLogger(UsersDaoImpl.class); protected void initDao() { // do nothing } /* (non-Javadoc) * @see com.dao.impl.UserDao#save(com.vo.Users) */ public void save(Users transientInstance) { log.debug("saving Users instance"); try { getHibernateTemplate().save(transientInstance); log.debug("save successful"); } catch (RuntimeException re) { log.error("save failed", re); throw re; } } /* (non-Javadoc) * @see com.dao.impl.UserDao#delete(com.vo.Users) */ public void delete(Users persistentInstance) { log.debug("deleting Users instance"); try { getHibernateTemplate().delete(persistentInstance); log.debug("delete successful"); } catch (RuntimeException re) { log.error("delete failed", re); throw re; } } /* (non-Javadoc) * @see com.dao.impl.UserDao#findById(java.lang.Integer) */ public Users findById(java.lang.Integer id) { log.debug("getting Users instance with id: " + id); try { Users instance = (Users) getHibernateTemplate().get("com.vo.Users", id); return instance; } catch (RuntimeException re) { log.error("get failed", re); throw re; } } /* (non-Javadoc) * @see com.dao.impl.UserDao#findByExample(com.vo.Users) */ public List findByExample(Users instance) { log.debug("finding Users instance by example"); try { List results = 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; } } /* (non-Javadoc) * @see com.dao.impl.UserDao#findByProperty(java.lang.String, java.lang.Object) */ public List findByProperty(String propertyName, Object value) { log.debug("finding Users instance with property: " + propertyName + ", value: " + value); try { String queryString = "from Users as model where model." + propertyName + "= ?"; return getHibernateTemplate().find(queryString, value); } catch (RuntimeException re) { log.error("find by property name failed", re); throw re; } } /* (non-Javadoc) * @see com.dao.impl.UserDao#findAll() */ public List findAll() { log.debug("finding all Users instances"); try { String queryString = "from Users"; return getHibernateTemplate().find(queryString); } catch (RuntimeException re) { log.error("find all failed", re); throw re; } } /* (non-Javadoc) * @see com.dao.impl.UserDao#merge(com.vo.Users) */ public Users merge(Users detachedInstance) { log.debug("merging Users instance"); try { Users result = (Users) getHibernateTemplate().merge( detachedInstance); log.debug("merge successful"); return result; } catch (RuntimeException re) { log.error("merge failed", re); throw re; } } public void attachDirty(Users instance) { log.debug("attaching dirty Users instance"); try { getHibernateTemplate().saveOrUpdate(instance); log.debug("attach successful"); } catch (RuntimeException re) { log.error("attach failed", re); throw re; } } public void attachClean(Users instance) { log.debug("attaching clean Users instance"); try { getHibernateTemplate().lock(instance, LockMode.NONE); log.debug("attach successful"); } catch (RuntimeException re) { log.error("attach failed", re); throw re; } } public static UserDao getFromApplicationContext(ApplicationContext ctx) { return (UserDao) ctx.getBean("UsersDAO"); } public boolean login(Users user) { // TODO Auto-generated method stub try { String queryString = "from Users as model where model.username='"+user.getUsername()+"' and model.userpwd ='"+user.getUserpwd()+"'"; return (getHibernateTemplate().find(queryString).size()>0)?true:false; } catch (RuntimeException re) { log.error("find by property name failed", re); throw re; } } }