cartaction.java

使用EJB实现的网上商城

package com.jdon.estore.web.cart;

import org.apache.struts.action.ActionMapping;
import org.apache.struts.action.Action;
import org.apache.struts.action.ActionForward;
import org.apache.struts.action.ActionForm;
import org.apache.struts.action.ActionErrors;
import org.apache.struts.action.ActionError;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import org.apache.commons.beanutils.PropertyUtils;
import com.jdon.util.Debug;

import com.jdon.controller.events.EventModel;
import com.jdon.controller.events.Event;
import com.jdon.strutsutil.*;

import com.jdon.bussinessproxy.ServiceServerFactory;
import com.jdon.bussinessproxy.EJBDefinition;

import com.jdon.controller.model.Model;
import com.jdon.estore.cart.ShoppingCartLocal;
import com.jdon.estore.FrameworkServices;

import com.jdon.estore.model.CartItem;
import com.jdon.estore.model.ShoppingCart;

public class CartAction extends Action {

  private final static String module = CartAction.class.getName();
  private final static ServiceServerFactory sf = ServiceServerFactory.
      getInstance();

  public ActionForward execute(ActionMapping actionMapping,
                               ActionForm actionForm,
                               HttpServletRequest request,
                               HttpServletResponse response) throws
      Exception {

    ShoppingCartLocal shoppingCartLocal = (ShoppingCartLocal) sf.getService(
        FrameworkServices.ShoppingCartEJB, request);

    String action = request.getParameter("action");
    if ( (action != null) && (action.equalsIgnoreCase("update"))) {

      ShoppingCart cart = new ShoppingCart();
      CartForm cartForm = (CartForm) actionForm;
      PropertyUtils.copyProperties(cart, cartForm);

      EventModel em = new EventModel();
      em.setModel(cart);
      shoppingCartLocal.updateCart(em);

    }
    ShoppingCart cart = shoppingCartLocal.getShoppingCart();
    CartForm cartForm = new CartForm();
    PropertyUtils.copyProperties(cartForm, cart);

    FormBeanUtil.saveActionForm(cartForm, actionMapping, request);

    return actionMapping.findForward("display");

  }

}