mime-type设置为:multipart/form-data
如下:
<FORM METHOD="POST" ACTION="do_upload.jsp" ENCTYPE="multipart/form-data">
<table width="75%" border="1" align="center">
    <tr> 
      <td><div align="center">1、 
          <input type="FILE" name="FILE1" size="30">
        </div></td>
    </tr>
</table>
</Form>