我要用JSP做一个RSS输入源, 现已完成部分,但还有问题,请教

我的RSS输入源地址为:http:wwww.xxxx.com/rss.jsp?id=xxx
  遇见的问题:  nbsp;未实例化  (对于特殊字符,我在类里用替换法,解决了)
                输出全是乱码.但查源代码时,是正常的               之前输出格式是RSS,但今天输出却是乱码.  想看看各位大虾的例子.对RSS还不熟悉.
  JSP代码如下:   <?xml version="1.0" encoding="utf-8"?>
<rss version="2.0" >
 <channel>
 <jsp:directive.page import="java.util.Date"/>
    <jsp:directive.page import="cn.xxx.inc.*"/>
    <jsp:directive.page import="java.sql.*"/>
    <jsp:directive.page import="cn.xxx.puser.logic.AllUse"/>
    <jsp:directive.page import="cn.xxx.inc.Xml"/>
  <%
   request.setCharacterEncoding("utf-8");
   int id=0 ;
   String note_title="",note_content="",note_author="";
    if (request.getParameter("id") !=null){
     try{
      id=Integer.parseInt(request.getParameter("id").toString());
      }catch(Exception e)
        {
        id=0  ;
        }
      }
   DB db=new DB();
   AllUse allUse=new AllUse();
   ResultSet rs=null;
   String sql="select top 25 * from note order by note_addTime desc";
   //System.out.println(sql);
  try{
   rs=db.Select(sql);
     }catch(Exception e){
     e.printStackTrace();
     }
    
     if(rs.next()){
         note_author =allUse.getUserInfoField(id,"realname");
       %>
   <title>xiaochun的日记--</title>
   <link>http://www.xxxxx.com </link>
   <description>xxxxx网</description>
   <language>zh-cn</language>
      <image>
     <title>xxxxx网</title>
     <url>http://www.xxxxx.com/image/logo_1.jpg</url>
     <link>http://www.xxxxx.com/</link>
     </image>
      
    
  <%
  String dateStr="";
  int noteId=0;
   while(rs.next()){
 
    dateStr=ConfigData.formatTime(rs.getString("note_addTime"),1);   
    noteId=rs.getInt("id");
    note_title = new String(rs.getString("title").getBytes("utf-8"),"ISO-8859-1");
    note_content = new String(ConfigData.getStrLen(rs.getString("content"),160).getBytes("utf-8"),"ISO-8859-1");
    note_content=Xml.rss(note_content);
   %>  
      <item>
     <title><%=note_title %></title>
     <link>http://localhost:8081/puser/diary.do?ac=det_ja&amp;id=<%=noteId%></link>
     <description><%=note_content%></description>
     <pubDate><%=dateStr%></pubDate>
     <guid>http://localhost:8081/puser/diary.do?ac=det_jaf&amp;id=<%=noteId%></guid>
     </item>
   
     
     <%} //while end
     
      }
     else{ %>
      <item>
     <title>用户ID错误</title>
        <link>http://www.xxxxx.com/</link>
     <description>你输入的用户名ID错误,请确认你的ID   http://www.xxxxx.com</description>
     <pubDate>Sun, 29 Sep 2002 19:59:01 GMT</pubDate>
     </item>
     
     <%} %>
     
 </channel>
</rss>