JSP 返回不了查询的值

<%@ page contentType="text/html; charset=gb2312" language="java" import="java.sql.*" 
 errorPage="" %><html>
<head runat="server">
<meta http-equiv="Content-Type" content="text/html; charset=gb2312">
    <title>HttpDate数据统计</title>
    <script src="<%=request.getContextPath()%>/tejs.js"></script>
    <link href="main.css" rel="stylesheet" type="text/css" />
     
</head>
<body>
    <form id="form1" method="post" action="test.jsp" >
     <table cellspacing="1" cellpadding="3" width="100%"   border="0px">
   <tr>
     <td class="td_title" colspan="4" height="25px">HttpDate数据统计</td>
   </tr>
    <tr>
      <td class="forumRowHighlight" colspan="4" style="height: 24px">统计时间:
       <input name="stdate"  value="2009-08-01" onclick="javascript:ShowCalendar(this)"    readonly   />到 
       <input name="endate" value="2009-08-11"    onclick="javascript:ShowCalendar(this)"  readonly   />    
          <input  type="submit" class="btnsure" value="统计" />
       </td>
      </tr>          
    <tr>
   <td align="center" colspan="4" height="2px"> 
<table cellspacing="0" cellpadding="0" width="430px"  border="0px">
   <tr>
      <td align="center" width="30px" height="20px">序号</td>
      <td align="center" width="160px" height="20px">时间 </td>
      <td align="center" width="80px" height="20px">渠道号</td>
      <td align="center" width="80px" height="20px">计费数量</td>
      <td align="center" width="80px" height="20px">计费总额</td>
   </tr>
<%
  try{
    Class.forName("com.microsoft.jdbc.sqlserver.SQLServerDriver").newInstance();
    String url="jdbc:microsoft:sqlserver://localhost:1433;DatabaseName=mmk";
    Connection con=DriverManager.getConnection(url,"sa","sa");
   String time1=request.getParameter("stdate");
   String time2=request.getParameter("endate");
   Statement stmt=con.createStatement();
   String sql="select sum(feecount),sum(feeM) from WjHttpData where entime >='"+time1+"'and entime<='"+time2+"'";
   ResultSet rs=stmt.executeQuery(sql);
%>
<tr>
<td align="center">合计</td>
<td align="center">null</td>
<td align="center">null </td>
<td align="center"><%=rs.getObject(1) %></td>
<td align="center"><%=rs.getObject(2) %></td>         这里并不能返回SQL 语句查询的值，不  
                                                             知道问题出在哪里 了 ？          
</tr>
<% 
   rs.close();
   stmt.close();
   con.close();
   }catch(Exception e){
    e.printStackTrace();
   }
%>   
 </table>
    </td>
    </tr>   
    </table>
    </form>
</body>
</html>