response.setContentType("application/msexcel");
response.setHeader("Content-disposition",
new StringBuffer("filename=").append("".equals(ed.getFilename())?
new java.text.SimpleDateFormat("yyyyMMddHHmmss").format(new java.util.Date()):new String(ed.getFilename().getBytes("GBK"),"ISO-8859-1"))
.append(".xls").toString());