五、SSH整合之HibernateTemplate的增删改查

package blog.csdn.net.mchenys.dao.impl; import java.util.List; import org.hibernate.criterion.DetachedCriteria; import org.springframework.orm.hibernate5.support.HibernateDaoSupport; import blog.csdn.net.mchenys.dao.CustomerDao; import blog.csdn.net.mchenys.domain.Customer; //dao层,继承HibernateDaoSupport public class CustomerDaoImpl extends HibernateDaoSupport implements CustomerDao { /** * 保存客户 */ @Override public void save(Customer c) { //使用hibernate模板操作数据库 this.getHibernateTemplate().save(c); } /** * 修改客户 */ public void update(Customer customer) { this.getHibernateTemplate().update(customer); } /** * 通过主键，查询 */ public Customer getById(Long id) { return this.getHibernateTemplate().get(Customer.class, id); } /** * 查询所有 */ public List<Customer> findAll() { //HQL语句 List<Customer> list = (List<Customer>) this.getHibernateTemplate().find("from Customer"); return list; } /** * 离线条件查询,查询所有的数据，使用QBC的查询 */ public List<Customer> findAllByQBC() { DetachedCriteria criteria = DetachedCriteria.forClass(Customer.class); // 设置查询条件 List<Customer> list = (List<Customer>) this.getHibernateTemplate().findByCriteria(criteria); return list; } /** * 延迟加载 */ public Customer loadById(long id) { return this.getHibernateTemplate().load(Customer.class, id); } }