cart.java

来自「电子商务系统： 项目描述：该系统主要完成用户网上购物、订单管理、产品管理、管理」· Java 代码 · 共 80 行

package com.tarena.shop.biz;

import java.util.HashMap;
import java.util.Iterator;

import com.tarena.shop.entity.Item;
import com.tarena.shop.entity.Product;

public class Cart {
	private HashMap items;
	private double cost;
	
	public Cart() {
		super();
		items = new HashMap();
	}
	public void addItem(Product product,int number)
	{
		System.out.println("unmber="+number);
		System.out.println(product.getId());
		Item item = new Item();
		item.setNumber(number);
		item.setProduct(product);
		item.setCost(product.getPrice()*number);
		items.put(product.getId(),item);
//		items.put(product.getId(), number);
	}
	public void	modiftNumberByProductId
								(Integer productId,int number)
	{
		Item item=(Item)items.get(productId);
		if(item!=null){
			items.remove(productId);
			item.setNumber(number);
			items.put(productId,item);
		}
	}
	public void deleteItemByProductId(Integer productId)
	{	items.remove(productId);
	}
	public void deleteItemByProductId(Integer[] ProductId)
	{	for(int i = 0 ; i<ProductId.length;i++){
		items.remove(ProductId[i]);
	}
	}
	public void clear(){
		items.clear();
	}
	public HashMap getCartItem(){
		return items;
	}
	public int getItemNumber(){
		return items.size();
		
	}
	public boolean isEmpty(){
		return items.isEmpty();
		
	}
	public HashMap getItems() {
		return items;
	}
	public void setItems(HashMap items) {
		this.items = items;
	}
	public double getCost() {
		double c=0;
		Iterator	sh=	items.values().iterator();
		Item sc= new Item();
		while(sh.hasNext()){
			sc=(Item)sh.next();
			c=c+sc.getCost();
		}
		return c;
	}
	public void setCost(double cost) {
		this.cost = cost;
	}
}