package?com.song.shop.cart;

import?java.util.Collection;
import?java.util.HashMap;
import?java.util.Map;
import?java.util.Set;

/**
?*?購物車
?*?@author?song
?*
?*/
public?class?Cart?{
	//購物項集合
	private?Map?cartItems?=?new?HashMap（）;
	//總價
	private?Double?total;
	//定義一個collection集合存放map的value，方便jsp頁面獲取購物車的商品及遍歷
	private?Collection?cartItems_jsp;
	public?Collection?getCartItems_jsp（）{
		return?cartItems.values（）;
	}
	//計算總價
	public?Double?getTotal（）?{
		total?=?0d;
		if（cartItems!=null?&&?cartItems.size（）>0）{
			Set?keys?=?cartItems.keySet（）;
			for（Integer?key?:?keys）
				total?=?total?+?cartItems.get（key）.getSubTotal（）;
		}
		return?total;
	}
	//清空購物車
	public?void?clearCart（）{
		//清空Map
		cartItems.clear（）;
		total?=?0d;
		int?n?=?cartItems.size（）;
		System.out.println（n）;
	}
	//加入購物車
	public?void?addCart（CartItem?cartItem）{
		Integer?pid?=?cartItem.getProduct（）.getPid（）;
		if（cartItems.containsKey（pid））{
			cartItems.get（pid）.setCount（cartItems.get（pid）.getCount（）+cartItem.getCount（））;
		}?else?{
			cartItems.put（pidcartItem）;
		}
	}
	//移除購物項
	public?void?removeCart（Integer?pid）{
		cartItems.remove（pid）;
	}
}

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----
?????目錄???????????0??2017-11-01?13:58??shop\
?????文件?????????529??2017-11-09?15:00??shop\.classpath
?????目錄???????????0??2017-11-27?13:26??shop\.myeclipse\
?????文件?????????285??2017-11-01?13:58??shop\.mymetadata
?????文件????????1747??2017-11-01?17:38??shop\.project
?????目錄???????????0??2017-11-01?17:28??shop\.settings\
?????文件?????????500??2017-11-01?13:58??shop\.settings\.jsdtscope
?????文件??????????83??2017-11-01?17:28??shop\.settings\com.genuitec.eclipse.core.prefs
?????文件?????????364??2017-11-01?13:58??shop\.settings\org.eclipse.jdt.core.prefs
?????文件?????????450??2017-11-01?13:58??shop\.settings\org.eclipse.wst.common.component
?????文件?????????252??2017-11-01?13:58??shop\.settings\org.eclipse.wst.common.project.facet.core.xml
?????文件??????????49??2017-11-01?13:58??shop\.settings\org.eclipse.wst.jsdt.ui.superType.container
?????文件???????????6??2017-11-01?13:58??shop\.settings\org.eclipse.wst.jsdt.ui.superType.name
?????目錄???????????0??2017-11-14?15:44??shop\WebRoot\
?????目錄???????????0??2017-11-01?13:58??shop\WebRoot\meta-INF\
?????文件??????????36??2017-11-01?13:58??shop\WebRoot\meta-INF\MANIFEST.MF
?????目錄???????????0??2017-11-13?12:05??shop\WebRoot\WEB-INF\
?????目錄???????????0??2017-11-22?10:25??shop\WebRoot\WEB-INF\classes\
?????文件????????7229??2017-11-21?19:52??shop\WebRoot\WEB-INF\classes\applicationContext.xml
?????目錄???????????0??2017-11-22?10:25??shop\WebRoot\WEB-INF\classes\com\
?????目錄???????????0??2017-11-22?10:25??shop\WebRoot\WEB-INF\classes\com\song\
?????目錄???????????0??2017-11-22?10:25??shop\WebRoot\WEB-INF\classes\com\song\shop\
?????目錄???????????0??2017-11-22?10:25??shop\WebRoot\WEB-INF\classes\com\song\shop\cart\
?????文件????????2760??2017-11-22?10:25??shop\WebRoot\WEB-INF\classes\com\song\shop\cart\Cart.class
?????文件????????2525??2017-11-22?10:25??shop\WebRoot\WEB-INF\classes\com\song\shop\cart\CartAction.class
?????文件????????1204??2017-11-22?10:25??shop\WebRoot\WEB-INF\classes\com\song\shop\cart\CartItem.class
?????目錄???????????0??2017-11-22?10:25??shop\WebRoot\WEB-INF\classes\com\song\shop\category\
?????文件????????1426??2017-11-22?10:25??shop\WebRoot\WEB-INF\classes\com\song\shop\category\Category.class
?????文件?????????611??2017-11-15?14:45??shop\WebRoot\WEB-INF\classes\com\song\shop\category\Category.hbm.xml
?????文件????????1720??2017-11-22?10:25??shop\WebRoot\WEB-INF\classes\com\song\shop\category\CategoryAction.class
?????文件?????????888??2017-11-22?10:25??shop\WebRoot\WEB-INF\classes\com\song\shop\category\CategoryDao.class
............此處省略407個文件信息