jsp单击行获取该行id，并传给servlet

<div id="center">
              <table width="120%" height="50%" >
     <tr ondblclick="method();">
                    <td>编号</td>
                    <td>快餐名称</td>
                    <td>数量</td>
                    <td>总计</td>
                    <td>客户姓名</td>
                    <td>联系电话</td>
                    <td>送餐地址</td>
                    <td>备注</td>
                    <td>状态</td>
                 </tr>                
              <%
                  SnackDaoImpl snackDaoImpl=new SnackDaoImpl();
                  List<Order>list=infos.getList();
                  for(int i=0;i<list.size();i++){
                      Order order = (Order)(infos.getList()).get(i);
                  %>
                <tr ondblclick="method()" onclick="aa(id)">
                <td><%=order.getId()%></td>
                <td><a id="ti" href="modify.jsp?id=<%=order.getId()%>"><%=order.getSname()%></a></td>
                <td><%=order.getNumber()%></td>
                <td><%=order.getPrice()%></td>
                <td><%=order.getCname()%></td>
                <td><%=order.getPhone()%></td>
   &nbs