基于struts和hibernate的学生信息管理系统

package Dao; import addHibernateFile.HibernateSessionFactory; import PO.Stuinfo; import java.util.List; import javax.swing.JOptionPane; import org.hibernate.Query; import org.hibernate.Session; import org.hibernate.Transaction; public class StudentDao { private Transaction transaction; private Session session; private Query query; public StudentDao(){ } public boolean saveInfo(Stuinfo info){ try{ session=HibernateSessionFactory.getSession(); transaction=session.beginTransaction(); session.save(info); transaction.commit(); session.close(); return true; }catch(Exception e){ message("saveInfo.error:"+e); e.printStackTrace(); return false; } } public List findInfo(String type,Object value){ session=HibernateSessionFactory.getSession(); try{ transaction=session.beginTransaction(); String queryString="from Stuinfo as model where model."+type+"=?"; query=session.createQuery(queryString); query.setParameter(0, value); List list=query.list(); transaction.commit(); session.close(); return list; }catch(Exception e){ message("findInfo.error:"+e); e.printStackTrace(); return null; } } public List findAllInfo(){ session=HibernateSessionFactory.getSession(); try{ transaction=session.beginTransaction(); String queryString="from Stuinfo"; query=session.createQuery(queryString); List list=query.list(); transaction.commit(); session.close(); return list; }catch(Exception e){ message("findInfo.error:"+e); e.printStackTrace(); return null; } } public boolean deleteInfo(String id){ try{ session=HibernateSessionFactory.getSession(); transaction=session.beginTransaction(); Stuinfo info=new Stuinfo(); info=(Stuinfo)session.get(Stuinfo.class, id); session.delete(info); transaction.commit(); session.close(); return true; }catch(Exception e){ message("deleteInfo.error:"+e); e.printStackTrace(); return false; } } public boolean updateInfo(Stuinfo info){ try{ session=HibernateSessionFactory.getSession(); transaction=session.beginTransaction(); session.update(info); transaction.commit(); session.close(); return true; }catch(Exception e){ message("updateInfo.error:"+e); e.printStackTrace(); return false; } } public void message(String mess){ int type=JOptionPane.YES_NO_OPTION; String title="做的不错"; JOptionPane.showMessageDialog(null, mess, title, type); } }