Java导出excel中文文件名乱码

String agent = request.getHeader("USER-AGENT").toLowerCase();
response.setContentType("application/vnd.ms-excel");
String fileName = "中文文件名";
String codedFileName = java.net.URLEncoder.encode(fileName, "UTF-8");
if (agent.contains("firefox")) {
    response.setCharacterEncoding("utf-8");
    response.setHeader("content-disposition", "attachment;filename=" + new String(fileName.getBytes(), "ISO8859-1") + ".xlsx" );
} else {
    response.setHeader("content-disposition", "attachment;filename=" + codedFileName + ".xlsx");
}
ExcelUtils.writeExcel(response, excelList, AssetsFixedExcelVO.class, fileName);