hibernate+struts+spring网上选课系统

package org.eimhe.db; 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; /** * Data access object (DAO) for domain model class Course. * @see org.eimhe.db.Course * @author MyEclipse - Hibernate Tools */ public class CourseDAO extends HibernateDaoSupport { private static final Log log = LogFactory.getLog(CourseDAO.class); //property constants public static final String COU_NAME = "couName"; public static final String COU_DIS = "couDis"; protected void initDao() { //do nothing } public void save(Course transientInstance) { log.debug("saving Course instance"); try { getHibernateTemplate().save(transientInstance); log.debug("save successful"); } catch (RuntimeException re) { log.error("save failed", re); throw re; } } public void delete(Course persistentInstance) { log.debug("deleting Course instance"); try { getHibernateTemplate().delete(persistentInstance); log.debug("delete successful"); } catch (RuntimeException re) { log.error("delete failed", re); throw re; } } public List findAllCourses() { log.debug("getting all courses "); try { System.out.println("this is test"); return this.getHibernateTemplate().find("from Course"); } catch (RuntimeException re) { log.error("get failed", re); throw re; } } public Course findById( java.lang.Integer id) { log.debug("getting Course instance with id: " + id); try { Course instance = (Course) getHibernateTemplate() .get("org.eimhe.db.Course", id); return instance; } catch (RuntimeException re) { log.error("get failed", re); throw re; } } public List findByExample(Course instance) { log.debug("finding Course 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 Course instance with property: " + propertyName + ", value: " + value); try { String queryString = "from Course 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 findByCouName(Object couName) { return findByProperty(COU_NAME, couName); } public List findByCouDis(Object couDis) { return findByProperty(COU_DIS, couDis); } public Course merge(Course detachedInstance) { log.debug("merging Course instance"); try { Course result = (Course) getHibernateTemplate() .merge(detachedInstance); log.debug("merge successful"); return result; } catch (RuntimeException re) { log.error("merge failed", re); throw re; } } public void attachDirty(Course instance) { log.debug("attaching dirty Course instance"); try { getHibernateTemplate().saveOrUpdate(instance); log.debug("attach successful"); } catch (RuntimeException re) { log.error("attach failed", re); throw re; } } public void attachClean(Course instance) { log.debug("attaching clean Course instance"); try { getHibernateTemplate().lock(instance, LockMode.NONE); log.debug("attach successful"); } catch (RuntimeException re) { log.error("attach failed", re); throw re; } } public static CourseDAO getFromApplicationContext(ApplicationContext ctx) { return (CourseDAO) ctx.getBean("CourseDAO"); } }