balanceaction.java

1.DATABASE目录下存放的是网上购书系统的数据库脚本文件以及相应的jdatastore数据库文件。 2.bookstoreejb目录下存放的工程对应于网上购书系统的ejb部分。 3.shop

package shopping.action;

import org.apache.struts.action.*;
import javax.servlet.http.*;
import java.util.List;
import javax.naming.Context;
import javax.naming.InitialContext;
import javax.rmi.PortableRemoteObject;

import shopping.form.OrderActionForm;
import shopping.form.InitialBookForm;
import bookstoreejb.*;
public class BalanceAction extends Action {
  public ActionForward perform(ActionMapping actionMapping, ActionForm actionForm, HttpServletRequest httpServletRequest, HttpServletResponse httpServletResponse) {
       HttpSession session =httpServletRequest.getSession(false);
       List cart =(List)session.getAttribute("cart");
       if(cart==null)
         System.out.println("cart is null");
       if(cart.size()==0)
         System.out.println("cart size is 0");
       System.out.println("cart size is:"+cart.size());
       OrderActionForm orderActionForm =(OrderActionForm)actionForm;
       StringBuffer stringBuffer = new StringBuffer();
       String bookList=null;
       float price=0;
       float singlePrice=0;
       for(int i=0,j=cart.size();i<j;i++){
           InitialBookForm initialBookForm =(InitialBookForm)cart.get(i);
           stringBuffer.append(initialBookForm.getBookname());
           System.out.println("book name in balanceAction is:"+stringBuffer.toString());
           stringBuffer.append(";");
           Float temp = new Float(initialBookForm.getPrice());
           singlePrice =temp.floatValue();
           price = price +singlePrice;
       }
       bookList = stringBuffer.toString();
       bookList = bookList.substring(0,bookList.length()-1);
       System.out.println("the book list in balance action is:"+bookList);
       Order order = new Order(orderActionForm.getOrderId(),
                               orderActionForm.getCustName(),
                               orderActionForm.getAddress(),
                               orderActionForm.getPersonalEMail(),
                               bookList,
                               price);
       try {
         InitialContext initialContext = new InitialContext();
         Object object = initialContext.lookup("facade");
         facadeHome fHome = (facadeHome) PortableRemoteObject.narrow(object,
             facadeHome.class);
         facade facadeInstance = fHome.create();
         facadeInstance.sendMessage(order);
         session.removeAttribute("cart");
       }catch (javax.naming.NamingException namingException) {
         namingException.printStackTrace();
       }
       catch (java.rmi.RemoteException remoteException) {
         remoteException.printStackTrace();
       }
       catch (javax.ejb.CreateException createException) {
         createException.printStackTrace();
       }
      return actionMapping.findForward("initial");

  }
}