foodcartaction.java

实现网上订餐系统

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

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
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.eatery.po.FoodInfo;
import com.eatery.service.FoodInfoService;


public class FoodCartAction extends Action {
	private FoodInfoService service;
	public FoodInfoService getService() {
		return service;
	}
	public void setService(FoodInfoService service) {
		this.service = service;
	}
	public ActionForward execute(ActionMapping mapping, ActionForm form,
			HttpServletRequest request, HttpServletResponse response) {

		ShoppingCart cart=(ShoppingCart) request.getSession().getAttribute("FoodInfoCartList");
		
		if(cart==null){
			cart=new ShoppingCart();
		}
		FoodInfo food=null;
		String add=request.getParameter("Add");
		if(add!=null){
			food=service.findFoodById(Integer.parseInt(add));
			cart.addFood(food.getFId(), food);
		}
		String edit=request.getParameter("Edit");
		if(edit!=null){
			try {
				String quantity=request.getParameter("foodQuantity");
				System.out.println(quantity);
				int foodQuantity=Integer.parseInt(quantity);
				System.out.println("count="+foodQuantity);
				cart.updateFoodQuantity(Integer.parseInt(edit),foodQuantity);
			} catch (NumberFormatException e) {
			}
		}
		String delete=request.getParameter("Delete");
		if(delete!=null){
			int foodId=Integer.parseInt(delete);
			cart.removeFood(foodId);
		}
		String clear=request.getParameter("Clear");
		if(clear!=null){
			cart.clearFoodCart();
		}
		
		request.getSession().setAttribute("FoodInfoCartList", cart);
		return mapping.findForward("ok");
	}
}