editorderservlet.java

机械工业出版社的《jsp2.0动态网站开发实例指南》的源代码

import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import DataCenterPackage.Condition;
import DataCenterPackage.OrderCondition;
import OrderPack.Order;
import OrderPack.OrderManager;

import java.io.PrintWriter;

public class editOrderServlet extends HttpServlet{
    public void doPost (HttpServletRequest request,
		       HttpServletResponse response) {
     doGet(request, response);
     
    }
 
 public void doGet (HttpServletRequest request,
		       HttpServletResponse response) {
     try{
         Integer orderid = (Integer)request.getAttribute("orderid");
         String action = (String)request.getAttribute("action");
         OrderManager om = OrderManager.GetOrderManager();
         Order order = om.SearchOrder(orderid.intValue());
         if ( "edit".equals(action) ) {
	         request.setAttribute("action", "edit");
	         if (order != null)
	             request.setAttribute("order", order);
	         getServletConfig().getServletContext().getRequestDispatcher("/bookroom.jsp").forward(request, response);
         } else if ("delete".equals(action) ) {
             if (order != null)
                 om.DeleteOrder(order);
             request.removeAttribute("orderList");
             getServletConfig().getServletContext().getRequestDispatcher("/orderlist.jsp").forward(request, response);
         }
     }
     catch(Exception ex){
         ex.printStackTrace();
     }
 }
}