changeamountaction.java

来自「采用struts+hibernet+javabean+jsp 些得shop购物网」· Java 代码 · 共 55 行

/*
 * Generated by MyEclipse Struts
 * Template path: templates/java/JavaClass.vtl
 */
package com.hnzt.struts.action;

import java.util.Map;

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

import org.apache.struts.action.Action;
import org.apache.struts.action.ActionForm;
import org.apache.struts.action.ActionForward;
import org.apache.struts.action.ActionMapping;

import com.hnzt.bean.CartGoodsInf;
import com.hnzt.bean.ShoppingCart;

public class ChangeAmountAction extends Action {

	public ActionForward execute(ActionMapping mapping, ActionForm form,
			HttpServletRequest request, HttpServletResponse response) {

		String goodsId = request.getParameter("goodsId");
		String goodsAmountStr = request.getParameter("goodsAmount");
		int goodsAmount = 0;
		HttpSession session = request.getSession();
		ShoppingCart shoppingCart = (ShoppingCart) session.getAttribute("shoppingCart");

		if (shoppingCart != null) {

			try {
				goodsAmount = Integer.parseInt(goodsAmountStr);
			} catch (NumberFormatException e) {
				Map shopCartMap = shoppingCart.getShopCart();
				CartGoodsInf cartGoodsInf = (CartGoodsInf) shopCartMap
						.get(goodsId);
				if (cartGoodsInf != null) {
					goodsAmount = cartGoodsInf.getGoodsAmount();

				}
			}
			if (goodsAmount > 0) {
				shoppingCart.changeAmount(goodsId, goodsAmount);
			} else {
				shoppingCart.deleteGoods(goodsId);
			}
		}
			
		session.setAttribute("shoppingCart", shoppingCart);
		return mapping.findForward("success");
	}
}