jsp实现数据按时间段查询，为什么数据显示不出来，问题出在哪？

<%@ page import="dao.Query" %>
<%@ page import="java.util.List" %>
<%@ page import="java.util.HashMap" %>
<%@ page contentType="text/html;charset=UTF-8" language="java" %>

Title

开始日期:" onclick="WdatePicker({dateFmt:'yyyy-MM-dd',lang:'zh-cn'})"> 结束日期:" onclick="WdatePicker({dateFmt:'yyyy-MM-dd',lang:'zh-cn'})"> 提交

<%

String where = "1=1 ";
if (!Request.get("kaishiriqi").equals("")) {
    where += " and zulinshijian>='"+Request.get("kaishiriqi")+" 00:00:00' ";
}
if (!Request.get("jieshuriqi").equals("")) {
    where += " and zulinshijian<='"+Request.get("jieshuriqi")+" 23:59:59' ";
}
@SuppressWarnings("unchecked")
List<HashMap> list = Query.make("yingyee").field("chaoshimingcheng , wupinmingcheng  ,SUM(xiaoshoujiage) xiaoshoujiage , SUM(xiaoshoushuliang)  xiaoshoushuliang , SUM(zongji) zongji ")
        .where(where)
       .group("chaoshimingcheng")
        .order("SUM(xiaoshoujiage) desc")
        .select();

%>

<%for (HashMap map:list)  {%>
<tr>
    <td><%=map.get("chaoshixinxi")%></td>
    <td><%=map.get("wupinmingcheng")%></td>
    <td><%=map.get("xiaoshoujiage")%></td>
    <td><%=map.get("xiaoshoushuliang")%></td>
    <td><%=map.get("zongji")%></td>
</tr>

<% } %>
</tbody>

<% //} %>

Query.make内部怎么实现的，把执行的sql放在数据库里单独运行，看看有没有结果