??? 一個套用hibernate框架編寫的增刪改查小范例，此處分享一下，經過多次修改，從代碼規范和后期維護，以及簡潔程度上說：算是很標準的書寫格式；

package www.csdn.net.bookhome.daoimpl;import java.util.List;import org.hibernate.Session; import org.hibernate.Transaction;import www.csdn.net.bookhome.dao.AdminDao; import www.csdn.net.bookhome.dao.BaseHibernateDao; import www.csdn.net.bookhome.domain.Admin; import www.csdn.net.bookhome.utils.HibernateSessionFactory;public class AdminDaoImpl extends BaseHibernateDao implements AdminDao {public void deleteObject(Admin entity) {Transaction tx = null;try {Session session = getSession();tx = session.beginTransaction();session.delete(entity);tx.commit();} catch (Exception e) {tx.rollback();throw new RuntimeException("刪除所有錯誤"+e);} finally {HibernateSessionFactory.closeSession();}}public void deleteObjectById(Integer id) {Transaction tx = null;try {Session session = getSession();tx = session.beginTransaction();session.save(id);tx.commit();} catch (Exception e) {tx.rollback();throw new RuntimeException("根據id錯誤"+e);} finally {HibernateSessionFactory.closeSession();}}public List getAllObjects(Class entityClass) {try {return getSession().createQuery("from Admin").list();} catch (Exception e) {throw new RuntimeException("查找錯誤"+e);} finally {HibernateSessionFactory.closeSession();}}public Admin getObjectById(Class className, Integer id) {try {return (Admin) getSession().get(className, id);} catch (Exception e) {throw new RuntimeException("根據id查找錯誤"+e);} finally {HibernateSessionFactory.closeSession();}}public List getObjects(Class clazz, int from, int size, String orderName) {try {return getSession().createQuery("from Admin").setFirstResult((from-1)*size).setMaxResults(size).list();} catch (Exception e) {throw new RuntimeException("分頁查詢錯誤"+e);} finally {HibernateSessionFactory.closeSession();}}public Admin loadObjectById(Class className, Integer id) {try {return (Admin) getSession().load(className, id);} catch (Exception e) {throw new RuntimeException("load查詢錯誤"+e);} finally {HibernateSessionFactory.closeSession();}}public void saveObject(Admin entity) {Transaction tx = null;try {Session session = getSession();tx = session.beginTransaction();session.save(entity);tx.commit();} catch (Exception e) {tx.rollback();throw new RuntimeException("保存錯誤"+e);} finally {HibernateSessionFactory.closeSession();}}public void updateObject(Admin entity) {Transaction tx = null;try {Session session = getSession();tx = session.beginTransaction();session.update(entity);tx.commit();} catch (Exception e) {tx.rollback();throw new RuntimeException("更新錯誤"+e);} finally {HibernateSessionFactory.closeSession();}}public Admin getAllObjects(String name) {try { return (Admin) getSession().createQuery("from Admin a where a.adminName = :name").setParameter("name", name).uniqueResult();} catch (Exception e) {throw new RuntimeException("根據用戶查詢有錯誤"+e);} finally {HibernateSessionFactory.closeSession();}}public Admin login(Admin entity) {try {return (Admin) getSession().createQuery("from Admin a where a.adminName = :name and a.adminPassword = :pass ").setString("name",entity.getAdminName()).setString("pass", entity.getAdminPassword()).uniqueResult();} catch (Exception e) {throw new RuntimeException("登錄錯誤"+e);} finally {HibernateSessionFactory.closeSession();}}}

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轉載于:https://www.cnblogs.com/yangkai-cn/archive/2013/01/09/4016989.html

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