deleteaction.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 DeleteAction extends Action{
	
	public ActionForward execute(ActionMapping map, ActionForm form,
			HttpServletRequest request, HttpServletResponse response) throws Exception {
		ActionMessages errors=new ActionMessages();
	Vector shop=(Vector)request.getSession().getAttribute("shop");
	Vector newshop=new Vector();
    String num=request.getParameter("number");
    int number=Integer.parseInt(num);
    shop.removeElementAt(number);
    request.getSession().setAttribute("shop", shop);
   return (map.getInputForward());
	}
	
}