为何Resultset1.getObject("semail")没有显示出来，SQL2000,semail(char类型）

<%@ page contentType="text/html; charset=GBK" language="java" import="java.sql.*" errorPage="" %>
<%@ include file="Connections/BugManagement.jsp" %>
<%
String Recordset1__MMColParam = "1";
if (session.getValue("sno") !=null) {Recordset1__MMColParam = (String)session.getValue("sno");}
%>
<%
Driver DriverRecordset1 = (Driver)Class.forName(MM_BugManagement_DRIVER).newInstance();
Connection ConnRecordset1 = DriverManager.getConnection(MM_BugManagement_STRING,MM_BugManagement_USERNAME,MM_BugManagement_PASSWORD);
PreparedStatement StatementRecordset1 = ConnRecordset1.prepareStatement("SELECT * FROM dbo.staff_info WHERE sno = " + Recordset1__MMColParam + "");
ResultSet Recordset1 = StatementRecordset1.executeQuery();
boolean Recordset1_isEmpty = !Recordset1.next();
boolean Recordset1_hasData = !Recordset1_isEmpty;
Object Recordset1_data;
int Recordset1_numRows = 0;
%>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312" />
<title>修改员工信息</title>
<style type="text/css">
<!--
.STYLE1 {font-family: "宋体"}
.STYLE3 {font-family: "宋体"; font-weight: bold; }
.STYLE5 {font-family: "宋体"; color: #FF0000; }
.STYLE6 {color: #FF0000}
-->
</style>
</head><body>
<form enctype="application/x-www-form-urlencoded" name="form1" id="form1">
  <table width="543" height="257" border="1" align="center" bordercolor="#000000">
    <tr>
      <td height="23" colspan="2" bordercolor="#FFFFFF" class="STYLE3">编辑帐号<%=session.getValue("sno")%><%=Resultset1.getObject("semail")%></td>
    </tr>
    <tr>
      <td width="160" height="23" bordercolor="#FFFFFF" bgcolor="#CBC9FC"><span class="STYLE3">账号</span></td>
      <td width="367" bordercolor="#FFFFFF" bgcolor="#D8CEFD">&nbsp;</td>
    </tr>
    <tr>
      <td height="23" bordercolor="#FFFFFF" bgcolor="#CBC9FC"><span class="STYLE3">密码</span><span class="STYLE1"><span class="STYLE6">*</span></span></td>
      <td height="23" bordercolor="#FFFFFF" bgcolor="#C6BCFE"><input name="textfield" type="password" size="30" maxlength="16" align="left"/></td>
    </tr>
    <tr>
      <td height="23" bordercolor="#FFFFFF" bgcolor="#CBC9FC"><span class="STYLE3">确认密码 </span><span class="STYLE5">*</span></td>
      <td bordercolor="#FFFFFF" bgcolor="#D8CEFD"><input name="textfield2" type="password" size="30" maxlength="16" /></td>
    </tr>
    <tr>
      <td height="23" bordercolor="#FFFFFF" bgcolor="#CBC9FC"><span class="STYLE3">Email</span></td>
      <td bordercolor="#FFFFFF" bgcolor="#C6BCFE"><input name="textfield3" type="text" size="50" maxlength="30"/></td>
    </tr>
    <tr>
      <td height="23" bordercolor="#FFFFFF" bgcolor="#CBC9FC"><span class="STYLE3">存取权限</span></td>
      <td bordercolor="#FFFFFF" bgcolor="#D8CEFD">&nbsp;</td>
    </tr>
    <tr>
      <td height="23" bordercolor="#FFFFFF" bgcolor="#CBC9FC"><span class="STYLE3">访问权限</span></td>
      <td bordercolor="#FFFFFF" bgcolor="#C6BCFE">&nbsp;</td>
    </tr>
    <tr>
      <td height="25" bordercolor="#FFFFFF"><span class="STYLE5">*必填</span></td>
      <td bordercolor="#FFFFFF"><span class="STYLE1">
        <input type="submit" name="Submit" value="更改账户信息" />
      </span></td>
    </tr>
  </table>
</form>
</body>
</html>
<%
Recordset1.close();
StatementRecordset1.close();
ConnRecordset1.close();
%>为什么页面上没显示出来内容呢？