shoppingcart.java

来自「采用struts+hibernet+javabean+jsp 些得shop购物网」· Java 代码 · 共 80 行

package com.hnzt.bean;

import java.math.BigDecimal;
import java.util.HashMap;
import java.util.Iterator;
import java.util.Map;

public class ShoppingCart{
	
	private Map shopCart = new HashMap();
	private double allGoodsPrice = 0;
	
	public void addGoods (String username,String goodsId,String goodsName,double goodsPrice,int goodsAmount,String pnumber,String manu_u)
	{
		CartGoodsInf cartGoodsInf = (CartGoodsInf)shopCart.get(goodsId);
		if(cartGoodsInf != null)
		{
			int amount = cartGoodsInf.getGoodsAmount();
			amount = amount + goodsAmount;
			cartGoodsInf.setGoodsAmount(amount);
		}
		else
		{
			cartGoodsInf = new CartGoodsInf(username,goodsId, goodsName, goodsPrice, goodsAmount,pnumber,manu_u);
			shopCart.put(goodsId,cartGoodsInf);
		}
	}
	
    public void deleteGoods(String goodsId)
    {
        CartGoodsInf cartGoodsInf = (CartGoodsInf)shopCart.get(goodsId);
		if(cartGoodsInf != null)
		{
		    shopCart.remove(goodsId);
		}
	}
	
	public void changeAmount(String goodsId, int goodsAmount)
	{
	    CartGoodsInf cartGoodsInf = (CartGoodsInf)shopCart.get(goodsId);
		if(cartGoodsInf != null)
		{
		    cartGoodsInf.setGoodsAmount(goodsAmount);	
		}	
	}
	
	public Map getShopCart()
	{
		return this.shopCart;
	}
	
	public double getAllGoodsPrice()
	{
		this.allGoodsPrice = 0;
		Iterator it = shopCart.keySet().iterator();
		while(it.hasNext())
		{
			String goodsId = (String)it.next();
			CartGoodsInf cartGoodsInf = (CartGoodsInf)shopCart.get(goodsId);
			if(cartGoodsInf != null)
		    {
		        this.allGoodsPrice = this.allGoodsPrice+cartGoodsInf.getTotalPrice();	
		    }
		}
		BigDecimal allGoods=new BigDecimal(this.allGoodsPrice);
		allGoods=allGoods.setScale(2,5);
		this.allGoodsPrice=allGoods.doubleValue();
		return this.allGoodsPrice;  
	}
	public void clearAllGoodsPrice()
	{
		this.allGoodsPrice = 0;
	}
	
	public void clearShoppingCart()
	{
		this.shopCart = new HashMap();
		this.allGoodsPrice = 0;	
	}	
}