purchaseaction.java

jsp+struct网上订票系统

package 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 org.apache.struts.action.ActionMessage;
import org.apache.struts.action.ActionMessages;
import dao.PurchaseDao;
import java.util.Date;
import orm.OrderItem;
import orm.buyList;
import java.util.Vector;
public class PurchaseAction extends Action{
	private PurchaseDao purchasedao;
	public PurchaseDao getPurchasedao()
	{
		return purchasedao;
	}
	public void setPurchasedao(PurchaseDao purchasedao)
	{
		this.purchasedao=purchasedao;
	}
	public ActionForward execute(ActionMapping map, ActionForm form,
			HttpServletRequest request, HttpServletResponse response) throws Exception {
		ActionMessages errors=new ActionMessages();
	String f=(String)request.getParameter("orderitem_id");
		Long u=(Long)request.getSession().getAttribute("curr_id");
		Long  fi=new Long(Integer.parseInt(f));
		Date dt=new Date();
		if(u==null||f==null)
		{
			errors.add("fali1",new ActionMessage("purchase.null"));
			saveErrors(request,errors);
			return(map.getInputForward());
		}
		OrderItem item=purchasedao.getOrderitembyid(fi);
		buyList mylist=new buyList();
		mylist.flightname=item.getFlight().getFlight_no();
		mylist.flightdate=item.getDate();
		mylist.price=item.getFlight().getPrice();
		mylist.number=1;
		mylist.itemid=item.getId();
		boolean listflag=true;
		Vector shop=(Vector)request.getSession().getAttribute("shop");
		if(shop==null)
		{
			shop=new Vector();
		}
		else
		{
			for(int i=0;i<shop.size();i++)
			{    
				
				
				buyList list=(buyList)shop.elementAt(i);
				if(list.flightname.equals(mylist.flightname)&&list.flightdate.equals(mylist.flightdate))
				{ 
					list.number++;
					shop.setElementAt(list,i);
					listflag=false;
				}
			}
		
		}
		if(listflag)
		{
			shop.addElement(mylist);
		}
		request.getSession().setAttribute("shop",shop);
		
		
		
		return(map.findForward("purchok"));
	}
	
}