productserviceimpl.java

网上商店

package service.impl;

import java.util.List;

import org.hibernate.Query;
import org.hibernate.Session;

import domain.Product;

import service.ProductService;

public class ProductServiceImpl implements ProductService {

	public List findAll(int page, int rowsPerPage) {
		// TODO Auto-generated method stub
		return null;
	}

	public List findByName(String name) {
		// TODO Auto-generated method stub
		return null;
	}

	public int getTotalPages(int rowsPerPage) {
		// TODO Auto-generated method stub
		return 0;
	}

	public List findAll() {
		Session session = HibernateSessionFactory.getSession();
		Query query = session.getNamedQuery("findAllProduct");
		List list = query.list();
		session.close();
		return list;
	}

	public Product findById(String id) {
		Session session = HibernateSessionFactory.getSession();
		Query query = session.getNamedQuery("findProductById");
		query.setParameter(0, id);
		List list = query.list();
		if (list.size() > 0) {
			return (Product) list.get(0);  //转为Product，容易操作
		} else {
			return null;
		}
	}

}