处理页面获取不到ID 得到的是为null解决思路

td>   <td>                                                        <a href="order_del_deal.jsp?ID=<%=OrderID%>"onclick="return confirm('真的要删?')">删</a></td>

<%@ page contentType="text/html; charset=gbk" language="java" import="java.sql.*" errorPage="" %><meta http-equiv="Content-Type" content="text/html; charset=gbk"><%@ page import="com.wgh.dao.OrderDaoImpl"%><jsp:useBean id="Order" scope="page" class="commerce.Order"><jsp:setProperty name="Order" property="*"/></jsp:useBean><jsp:useBean id="chStr" scope="page" class="com.wgh.DB.chStr"/><jsp:useBean id="conn" scope="page" class="com.wgh.DB.connDB"/><jsp:include page="safe.jsp"/><%    //删除订单页面Integer id=Order.getOrderID();            //这边为什么会id=-1  或者为null;  -----传过来就是null的System.out.println("删除id= "+id);        ResultSet rs=conn.executeQuery("select * from tb_order where OrderID=" + id);//System.out.println(rs);if (!rs.next()){    out.println("<script language='javascript'>alert('您的操作有误');window.location.href='ordermanage.jsp';</script>");}else{    int ret=0;        OrderDaoImpl del_order=new OrderDaoImpl();        ret=del_order.delete(Order);    if (ret!=0){          out.println("<script language='javascript'>alert('订单信息删除成功！');window.location.href='ordermanage.jsp';</script>");         }else{          out.println("<script language='javascript'>alert('订单信息删除失败！');window.location.href='ordermanage.jsp';</script>");        }}%>