我的用的二级联动与数据库相连,第一级 "授权批准人员 "可以从数据库中调出,但第二级 "授权人员类别 "只是空的下拉菜单,请问高手这是怎么回事?我的代码如下,请高手指教
<%@ page language= "java " import= "java.util.* " pageEncoding= "GBK "%>
<%@ page import= "java.sql.* " %>
<script src= "AjaxClient.js "> </script>
<script>
function bbbbb(){
initXmlHttp();
var idValue = form1.se1.text;
var url = "ajaxServlet?id= " + idValue;
send(url,form1);
}
</script>
<form align= "center " method= "post " name= "FrmAddLink " LANGUAGE= "javascript "
onsubmit= "return FrmAddLink_onsubmit() " action= "saveadduser.jsp ">
<%
ResultSet rs1=stmt.executeQuery( "select distinct TYPE from MTYPE_TAB ");
%>
<table border= "1 " cellspacing= "0 " width= "700 " >
<tr>
<td width= "20% " align= "right " height= "2 " valign= "middle "> <font color=red> * </font> <b> <font color= "#0080C0 "> 授权批准人员： </font> </b> </td>
<td height= "2 " colspan= "3 " width= "85% ">
<select name= "se1 " onChange= "bbbbb() " >
<option selected> 请选择 </option>
<% while(rs1.next())
{%>
<option value= " <%=rs1.getString( "TYPE ")%> "> <%=rs1.getString( "TYPE ")%> </option>
<% }
%>
</select>
</td>
</tr>
<tr>
<td width= "20% " align= "right " height= "2 " valign= "middle "> <font color=red> * </font> <b> <font color= "#0080C0 "> 授权人员类别： </font> </b> </td>
<td height= "2 " colspan= "3 " width= "85% ">
<select name= "se2 " >