package?Biz;

import?java.util.*;

import?javax.servlet.*;
import?javax.servlet.http.HttpServletRequest;
import?javax.servlet.http.HttpServletResponse;
import?javax.servlet.http.HttpSession;

import?Entities.*;

public?class?AddFoodToCart?implements?BizInterface{

	public?String?execute（HttpServletRequest?requestHttpServletResponse?response）
	{
		
		String?path?=?“viewCart.jsp“;
		HttpSession?session?=?request.getSession（false）;
		
		//如果session不存在，則轉向show.jsp
		
		if（session?==?null）
		{
			path?=?“show.jsp“;
		}
		
		FoodBean?food?=?（FoodBean）?session.getAttribute（“foodToAdd“）;
		
		//取出購物車中添加的餐品
		Map?cart?=?（Map）?session.getAttribute（“cart“）;
		
		//如果購物車中不存在，則創建購物車
		if（cart?==?null）
		{
			cart?=?new?HashMap（）;
			//將購物車存入session之中
			session.setAttribute（“cart“cart）;
		}
		//判斷餐品是否在購物車中
		CartItemBean?cartItem?=?（CartItemBean）?cart.get（food.getFoodID（））;
		//如果餐品在購物車中，則更新其數量
		//否則，創建一個條目到Map中
		if（cartItem?!=?null）
		{
			cartItem.setQuantity（cartItem.getQuantity（）+1）;
		}
		else
		{
			//如果購物車中不存在欲添加的書籍，就添加該書籍，并設置數量為1
			cart.put（food.getFoodID（）new?CartItemBean（food1））;
		}
	
		return?path;
	}
}

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----

?????文件????????571??2011-08-31?14:26??網上訂餐系統\greenness\.classpath

?????文件????????300??2011-11-05?21:10??網上訂餐系統\greenness\.mymetadata

?????文件???????1282??2011-08-30?21:54??網上訂餐系統\greenness\.project

?????文件????????351??2004-01-08?01:44??網上訂餐系統\greenness\WebRoot\accept.jsp

?????文件???????8685??2011-11-05?21:29??網上訂餐系統\greenness\WebRoot\checkOut.html

?????文件???????7267??2011-11-05?21:29??網上訂餐系統\greenness\WebRoot\details.html

?????文件???????7844??2011-11-05?21:31??網上訂餐系統\greenness\WebRoot\details.jsp

?????文件???????7240??2011-11-05?21:27??網上訂餐系統\greenness\WebRoot\login.html

?????文件???????3721??2008-07-30?09:07??網上訂餐系統\greenness\WebRoot\message.jsp

?????文件????????679??2008-07-30?09:42??網上訂餐系統\greenness\WebRoot\register.jsp

?????文件????????586??2004-01-08?01:44??網上訂餐系統\greenness\WebRoot\result.jsp

?????文件???????6684??2011-11-05?21:30??網上訂餐系統\greenness\WebRoot\seeYou.jsp

?????文件???????4737??2011-08-31?15:07??網上訂餐系統\greenness\WebRoot\shopCart.html

?????文件??????31860??2011-11-05?21:30??網上訂餐系統\greenness\WebRoot\show.html

?????文件???????8069??2011-11-05?21:32??網上訂餐系統\greenness\WebRoot\show.jsp

?????文件????????710??2011-08-30?21:55??網上訂餐系統\greenness\WebRoot\simLogin.html

?????文件???????4647??2004-01-15?18:40??網上訂餐系統\greenness\WebRoot\viewCart.jsp

?????文件???????1152??2008-08-04?16:45??網上訂餐系統\greenness\WebRoot\WEB-INF\web.xml

?????文件?????284752??2004-01-13?19:40??網上訂餐系統\greenness\WebRoot\WEB-INF\lib\msbase.jar

?????文件??????64856??2004-01-13?19:40??網上訂餐系統\greenness\WebRoot\WEB-INF\lib\mssqlserver.jar

?????文件??????59865??2004-01-13?19:40??網上訂餐系統\greenness\WebRoot\WEB-INF\lib\msutil.jar

?????文件???????2369??2011-09-05?23:09??網上訂餐系統\greenness\WebRoot\WEB-INF\classes\Entities\allFoodsBean.class

?????文件????????860??2011-09-05?23:09??網上訂餐系統\greenness\WebRoot\WEB-INF\classes\Entities\CartItemBean.class

?????文件???????1519??2011-09-05?23:09??網上訂餐系統\greenness\WebRoot\WEB-INF\classes\Entities\FoodBean.class

?????文件???????2110??2011-09-05?23:09??網上訂餐系統\greenness\WebRoot\WEB-INF\classes\Dao\ConnectionManage.class

?????文件????????138??2011-08-31?14:46??網上訂餐系統\greenness\WebRoot\WEB-INF\classes\Dao\db.properties

?????文件????????662??2011-09-05?23:09??網上訂餐系統\greenness\WebRoot\WEB-INF\classes\Dao\DBAccessException.class

?????文件???????1154??2011-09-05?23:09??網上訂餐系統\greenness\WebRoot\WEB-INF\classes\Dao\Env.class

?????文件???????3236??2011-09-05?23:09??網上訂餐系統\greenness\WebRoot\WEB-INF\classes\Dao\SQLCommandBean.class

?????文件???????2778??2011-09-05?23:09??網上訂餐系統\greenness\WebRoot\WEB-INF\classes\Control\myServlet.class

............此處省略136個文件信息