jsp下载链接的统计及返回!!!求助!!!
mylink.jsp有一个, "下载 "连接,现在我想他的点击次数,想法是在数据库中建一个T表,有个字段为T_DownTime,初始值为0,只要点击 "下载 "一次,T_DownTime字段的值就加1,已经可以对下载连接的点击进行统计了,方法是: 
 我把 "下载 "连接写成 <a   href= "count.jsp?pid= <=pid>  "> ,在count.jsp页面完成了数据库操作,增一更新T_DownTime字段, 
 我的下载文件放在jsp文件同目录的upload文件夹内,下载地址为:http://127.0.0.1/my/upload/123(XXX).jpg(假如下载的是123.jpg)   
 可是不知道如何重定想到文件下载连接:http://127.0.0.1/my/upload/123.jpg(假设pid此时为 "123 ",实际中不能确定),请各位大侠在帮帮我呀,谢谢了.   
 mylink.jsp   
  <%@   page   language= "java "   contentType= "text/html;   charset=gb2312 "   %>  
  <%@   include   file= "inc.jsp "%>  
  <%       
                String      Pid=request.getParameter( "Pid "); 
                String   sql= "select   *   from   T_P   where   T_Code   =    "+Pid+ " "; 
                myBean   mySearch   =   new   myBean(); 
                mySearch.setConnection(); 
                mySearch.setQuerystatement(sql); 
                ResultSet   myRst=mySearch.getResult(); 
                myRst.first();    
                myRst.previous(); 
 %>    
 ... 
  <tr>  
  <td   height= "32 ">  </td>  
  <OBJECT      classid= "CLSID:8856F961-340A-11D0-A96B-00C04FD705A2 "      height=0      id=wb      name=wb      width=0>  </OBJECT>                    
  <td   colspan= "4 ">  <div   align= "center "> [    
  <a   href= "count.jsp?Pid= <%=Pid%>  ">  
  <%count=Integer.parseInt(sqlRst.getString( "T_DownTime "));count++;%> 下   载 </a> ][    <a   href= "javascript:window.close(); "> 关   闭 </a>    ] </div>  </td>  
     </tr>  
  <tr>       
 ...     
 count.jsp   
  <%@   include   file= "inc.jsp "%>  
  <%          
                String      Pid=request.getParameter( "Pid "); 
                String   sql= "select   *   from   T_P   where   T_Code   =    "+Pid+ " "; 
                myBean   mySearch   =   new   myBean(); 
                mySearch.setConnection(); 
                mySearch.setQuerystatement(sql); 
                ResultSet   sqlRst=mySearch.getResult(); 
                sqlRst.first();    
                sqlRst.previous(); 
                if(sqlRst.next()) 
          { 
                String   sql1= "update   T_P   set   T_DownTime=T_DownTime+1   where   T_Code   =    "+Pid+ " "; 
                myBean   myUpdate   =   new   operateDBBean(); 
                myUpdate.setConnection(); 
                myUpdate.setQuerystatement(sql1);