customerdao.java

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package dao;

import org.springframework.orm.hibernate3.HibernateTemplate;
import org.springframework.orm.hibernate3.support.HibernateDaoSupport;

import po.Customer;

public class CustomerDao extends HibernateDaoSupport implements ICustomerDao{
	//HibernateDaoSupport有一个属性sessionFactory被继承过来，可以被注入
	HibernateTemplate ht = this.getHibernateTemplate();
	public boolean insertCustomer(Customer cus){		
		try{
			ht.save(cus);
			return true;			
		}catch(Exception ex){ex.printStackTrace();}
		return false;
	} 	
	
	public boolean updateCustomer(Customer cus){
		try{
			ht.update(cus);
			return true;			
		}catch(Exception ex){ex.printStackTrace();}
		return false;
	} 	
	
	public Customer getCustomerByAccount(String account){
		Customer cus = null;
		try{
			cus = (Customer)ht.get(Customer.class, account);
		}catch(Exception ex){ex.printStackTrace();}
		return cus;
	} 		
}