editorderlineaction.java

一个J2EE 做的 网上图书销售管理系统

/*
 * Generated by MyEclipse Struts
 * Template path: templates/java/JavaClass.vtl
 */
package com.briup.web.servlet;

import java.util.Collection;
import java.util.Iterator;
import java.util.List;

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.briup.bean.Orderline;
import com.briup.bean.ShoppingCart;

/**
 * MyEclipse Struts Creation date: 05-29-2008
 * 
 * XDoclet definition:
 * 
 * @struts.action validate="true"
 */
public class EditOrderlineAction extends Action {
	/*
	 * Generated Methods
	 */

	/**
	 * Method execute
	 * 
	 * @param mapping
	 * @param form
	 * @param request
	 * @param response
	 * @return ActionForward
	 */
	public ActionForward execute(ActionMapping mapping, ActionForm form,
			HttpServletRequest request, HttpServletResponse response) {
		// TODO Auto-generated method stub
		HttpSession session = request.getSession();
		ShoppingCart cart = (ShoppingCart) session.getAttribute("cart");
		String lineid = request.getParameter("lineid");
		System.out.println("lineid=" + lineid + "我在EditOrderlineAction");
		String num = request.getParameter("num");
		Orderline orderline = cart.getOrderline(Integer.parseInt(lineid));
		orderline.setNum(Integer.parseInt(num));
		// 为了购物车利用struts,jsp的标签库的使用将listcart.jsp改成标签库
		List<Orderline> list = (List) session.getAttribute("list");
		Iterator it = list.iterator();
		while (it.hasNext()) {
			list.remove(0);
		}
		Collection c = cart.getOrderlines();
		Iterator iter = c.iterator();
		while (iter.hasNext()) {
			Orderline orderline1 = (Orderline) iter.next();
			list.add(orderline1);
		}

		session.setAttribute("list", list);
		System.out.println("装进去了----" + list + "----我在EditOrderlineAction");
		return new ActionForward("/listCart.jsp");

	}
}