emptycartaction.java

一个很适合初学者的网上书店系统

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

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

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

import com.ascent.util.ShoppingCart;

/**
 * MyEclipse Struts Creation date: 07-16-2006
 * 
 * XDoclet definition:
 * 
 * @struts.action validate="true"
 */
public class EmptyCartAction extends BaseAction {
	/*
	 * 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) {
		/**
		 * 用户购物，不想要时清空购物车
		 */
		HttpSession session = request.getSession();
		ShoppingCart cart = null;
		cart = (ShoppingCart) session.getAttribute("cart");
		cart.emptyCart();
		return mapping.findForward("returncart");
	}
}