showitemsaction.java

一个用java开发的网上购物系统。基本功能都是可以实现的

package store;

import java.util.*;
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.DynaActionForm;
import org.apache.struts.action.ActionForward;
import org.apache.struts.action.ActionMapping;
import org.apache.struts.action.ActionError;
import org.apache.struts.action.ActionErrors;
public class ShowItemsAction extends Action {
public ActionForward execute(
ActionMapping mapping,
ActionForm form,
HttpServletRequest request,
HttpServletResponse response)
throws Exception {
  HttpSession session=request.getSession();
  DynaActionForm tform=(DynaActionForm)form;
  ActionErrors errors=new ActionErrors ();
  String orderid=(String)tform.get("orderid");
  Object vid=tform.get("vid");
  session.setAttribute("vid",vid);
  Vector vc=new Vector();
  Vector ve=new Vector();
  try{
   int oid=Integer.parseInt(orderid);
   OrderItems OIS=new OrderItems();
   vc=OIS.getOrderItems(oid);
   session.setAttribute("items",vc);
   ListOrder LO=new ListOrder();
   OrderInfo OI=LO.getOrderInfo(oid);
   session.setAttribute("order",OI);
   vc=null;
   ve=null;
  }
  catch(Exception e){
    ActionError err= new ActionError ("error.global");
    errors.add(ActionErrors.GLOBAL_ERROR,err);
    this.saveErrors(request,errors);
    return mapping.findForward("error");
  }
  return mapping.findForward("OrderDetail");
 }
}