updateorderitemaction.java

用STRUTS ,HIBERNATE, SPRING 三种框架整合做的实战项目

package com.ghy.action;

import java.util.ArrayList;
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.ghy.data.order.Control;
import com.ghy.data.order.OrderItemForm;


public class UpdateOrderItemAction extends Action {

	public ActionForward execute(ActionMapping mapping, ActionForm form,
			HttpServletRequest request, HttpServletResponse response)
			throws Exception {
		HttpSession session = request.getSession();
		Control control = new Control();
		OrderItemForm orderItemCart = (OrderItemForm)session.getAttribute("cart");
		if(request.getParameter("action")==null)
		{
			//取得form中的List集合
			OrderItemForm orderItemForm =(OrderItemForm)form ;
			ArrayList listFromOrder = orderItemForm.getOrderItems();
			//取得cart集合
			ArrayList listFromCart = orderItemCart.getOrderItems();
			listFromCart  = control.updateGoods(listFromOrder, listFromCart);
			orderItemCart.setOrderItems(listFromCart);
			session.setAttribute("cart", orderItemCart);
			
		}
		else
		{
			orderItemCart.setOrderItems(new ArrayList());
			session.setAttribute("cart", orderItemCart);
		}
		return mapping.findForward("updateorderitem");
	}
	

}