updateshopcartaction.java

本系统实现了网上书店功能

//Created by MyEclipse Struts
// XSL source (default): platform:/plugin/com.genuitec.eclipse.cross.easystruts.eclipse_4.1.0/xslt/JavaClass.xsl

package com.action;

import java.util.Vector;

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 org.apache.struts.action.DynaActionForm;

import com.bean.ShopCart;

/** 
 * MyEclipse Struts
 * Creation date: 12-22-2006
 * 
 * XDoclet definition:
 * @struts.action path="/updateShopCart" name="updateShopCartForm" input="/failure.jsp" scope="request" validate="true"
 * @struts.action-forward name="success" path="/bookShopCart.jsp"
 * @struts.action-forward name="failure" path="/failure.jsp"
 */
public class UpdateShopCartAction extends Action {

	// --------------------------------------------------------- Instance Variables

	// --------------------------------------------------------- Methods

	/** 
	 * Method execute
	 * @param mapping
	 * @param form
	 * @param request
	 * @param response
	 * @return ActionForward
	 */
	public ActionForward execute(
		ActionMapping mapping,
		ActionForm form,
		HttpServletRequest request,
		HttpServletResponse response) {
		DynaActionForm updateShopCartForm = (DynaActionForm) form;
		String []count = (String[])updateShopCartForm.get("count");
		String []del=(String[])updateShopCartForm.get("del");
		HttpSession session = request.getSession();
		Vector shopCartList = (Vector)session.getAttribute("SHOPCARTLIST");
		if(shopCartList!=null){
			for(int i=0;i<shopCartList.size();i++){
				ShopCart shopCart=(ShopCart)shopCartList.get(i);
				shopCart.setCount(Integer.parseInt(count[i]));
				shopCartList.set(i,shopCart);
			}
			for(int i=shopCartList.size()-1;i>=0;i--){
				ShopCart shopCart = (ShopCart)shopCartList.get(i);
				for(int j=0;j<del.length;j++){
					if(shopCart.getBookID()==Integer.parseInt(del[j])){
						shopCartList.remove(i);
					}
				}
			}
		}
		session.setAttribute("SHOPCARTLIST",shopCartList);
		return mapping.findForward("success");
		
	}

}