一个套用hibernate框架编写的增删改查小范例，此处分享一下，经过多次修改，从代码规范和后期维护，以及简洁程度上说：算是很标准的书写格式；

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("删除所有错误"+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("根据id错误"+e);} finally {HibernateSessionFactory.closeSession();}}public List getAllObjects(Class entityClass) {try {return getSession().createQuery("from Admin").list();} catch (Exception e) {throw new RuntimeException("查找错误"+e);} finally {HibernateSessionFactory.closeSession();}}public Admin getObjectById(Class className, Integer id) {try {return (Admin) getSession().get(className, id);} catch (Exception e) {throw new RuntimeException("根据id查找错误"+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("分页查询错误"+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查询错误"+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("保存错误"+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("更新错误"+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("根据用户查询有错误"+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("登录错误"+e);} finally {HibernateSessionFactory.closeSession();}}}