springmvc整合Hibernate的登录实例带表结构

package com.tz.pojo; import java.util.List; import org.apache.commons.logging.Log; import org.apache.commons.logging.LogFactory; import org.hibernate.LockMode; import org.springframework.context.ApplicationContext; import org.springframework.orm.hibernate3.support.HibernateDaoSupport; /** * A data access object (DAO) providing persistence and search support for * Userlogin 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.tz.pojo.Userlogin * @author MyEclipse Persistence Tools */ public class UserloginDAO extends HibernateDaoSupport { private static final Log log = LogFactory.getLog(UserloginDAO.class); // property constants public static final String USERNAME = "username"; public static final String PASSWORD = "password"; protected void initDao() { // do nothing } public void save(Userlogin transientInstance) { log.debug("saving Userlogin instance"); try { getHibernateTemplate().save(transientInstance); log.debug("save successful"); } catch (RuntimeException re) { log.error("save failed", re); throw re; } } public void delete(Userlogin persistentInstance) { log.debug("deleting Userlogin instance"); try { getHibernateTemplate().delete(persistentInstance); log.debug("delete successful"); } catch (RuntimeException re) { log.error("delete failed", re); throw re; } } /*public Userlogin findById(java.lang.Integer id) { log.debug("getting Userlogin instance with id: " + id try { Userlogin instance = (Userlogin) getHibernateTemplate().get( "com.tz.pojo.Userlogin", id)id return instance; } catch (RuntimeException re) { log.error("get failed", re); throw re; } }*/ public List findByExample(Userlogin instance) { log.debug("finding Userlogin 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; } } public List findByProperty(String propertyName, Object value) { log.debug("finding Userlogin instance with property: " + propertyName + ", value: " + value); try { String queryString = "from Userlogin 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 findByUsername(Object username) { return findByProperty(USERNAME, username); } public List findByPassword(Object password) { return findByProperty(PASSWORD, password); } public List<Userlogin> findAll() { log.debug("finding all Userlogin instances"); try { String queryString = "from Userlogin"; return getHibernateTemplate().find(queryString); } catch (RuntimeException re) { log.error("find all failed", re); throw re; } } public Userlogin merge(Userlogin detachedInstance) { log.debug("merging Userlogin instance"); try { Userlogin result = (Userlogin) getHibernateTemplate().merge( detachedInstance); log.debug("merge successful"); return result; } catch (RuntimeException re) { log.error("merge failed", re); throw re; } } public void attachDirty(Userlogin instance) { log.debug("attaching dirty Userlogin instance"); try { getHibernateTemplate().saveOrUpdate(instance); log.debug("attach successful"); } catch (RuntimeException re) { log.error("attach failed", re); throw re; } } public void attachClean(Userlogin instance) { log.debug("attaching clean Userlogin instance"); try { getHibernateTemplate().lock(instance, LockMode.NONE); log.debug("attach successful"); } catch (RuntimeException re) { log.error("attach failed", re); throw re; } } public boolean ismyuser(Userlogin u){ List l=findAll(); //System.err.println(u.getUsername()+" 输入的是什么？"+u.getPassword()); for(int i=0;i<l.size();i++){ System.out.println(l.get(i)); String uname=((Userlogin)l.get(i)).getUsername(); String pwd=((Userlogin)l.get(i)).getPassword(); if(uname.equals(u.getUsername())&&pwd.equals(u.getPassword())){ return true; } } System.out.println("========="); System.out.println(u); return false; } public static UserloginDAO getFromApplicationContext(ApplicationContext ctx) { return (UserloginDAO) ctx.getBean("UserloginDAO"); } }