additemaction.java

Java EE 5 许多新功能都包含经过修补的 EJB 架构

/*
 * Copyright 2006 Borys Burnayev
 * 
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 * 
 * http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.rdacorp.petstore.web.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.rdacorp.petstore.domain.Item;

/**
 * @author Borys Burnayev
 */
public class AddItemAction extends Action {

   public ActionForward execute(ActionMapping mapping, ActionForm form, HttpServletRequest request,
            HttpServletResponse response) throws Exception {
      String itemCode = request.getParameter("itemCode");
      if (itemCode != null) {
         PetStoreSession session = new PetStoreSession(request.getSession());
         PetStoreApplication application = session.getApplication();
         Item item = application.getPetStoreService().findItem(itemCode);
         MaintainCartForm cart = session.getCart();
         if (cart == null) {
            cart = new MaintainCartForm();
            request.getSession().setAttribute("maintainCartForm", cart);
         }
         cart.addItem(item);
      }
      return mapping.findForward("success");
   }
}