用jsp如何实现下拉列表框列出指定文件夹里的所有文件

随便什么方法的话
那就用最简单的<input type="file" name="aaaaaa" >

解决方案 »

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<html>
<script language="javascript">
function doreturn(){
   var strReturn="";

   strReturn=document.theForm.added.options[document.theForm.added.selectedIndex].value;
   //alert(strReturn);
  window.returnValue=strReturn;
   window.close()
}
</script>
<%
String strid="file";
String path = request.getRealPath(strid);//½¨Á¢´ú±íÄ¿Ç°Ä¿Â¼Î»ÖÃµÄd±äÁ¿
File d = new File(path);
//È¡µÃ´ú±íÄ¿Â¼ÖÐËùÓÐÎÄ¼þ
File list[] = d.listFiles();
%>
<body>
<table align=center border=1>
<form name="theForm">
<tr>
      <td width="120">
               <select size="12" name="added" multiple style="width:100%;" ondblclick="javascript:addit(added,tobeadd)">
   <%for(int i=0; i < list.length; i++)
                    {

                 if(list[i].isDirectory()){}else{
                     %>
<option value="<%=list[i].getName()%>"><%=list[i].getName()%></option>
<%
}
}
%>
               </select>
            </td>
</tr>
<tr>
<td>
<input type=button value="È·¶¨" onclick="doreturn();">
</td>
</tr>
</form>
</table>
</body>
</html>
<html>
<script language="javascript">
function doreturn(){
   var strReturn="";

   strReturn=document.theForm.added.options[document.theForm.added.selectedIndex].value;
   //alert(strReturn);
  window.returnValue=strReturn;
   window.close()
}
</script>
<%
String strid="file";
String path = request.getRealPath(strid);//建立代表目前目录位置的d变量
File d = new File(path);
//取得代表目录中所有文件
File list[] = d.listFiles();
%>
<body>
<table align=center border=1>
<form name="theForm">
<tr>
      <td width="120">
               <select size="12" name="added" multiple style="width:100%;" ondblclick="javascript:addit(added,tobeadd)">
   <%for(int i=0; i < list.length; i++)
                    {

                 if(list[i].isDirectory()){}else{
                     %>
<option value="<%=list[i].getName()%>"><%=list[i].getName()%></option>
<%
}
}
%>
               </select>
            </td>
</tr>
<tr>
<td>
<input type=button value="确定" onclick="doreturn();">
</td>
</tr>
</form>
</table>
</body>
</html>