Java uses IE browser to download a file, the file name garbled problem

String userAgent = request.getHeader("user-agent").toLowerCase();
        if (userAgent.contains("msie") || userAgent.contains("like gecko") ) {
            // win10 ie edge 浏览器 和其他系统的ie
            fileName = URLEncoder.encode(fileName, "UTF-8");
        } else {
            // 其他
            fileName = new String(fileName.getBytes("utf-8"), "iso-8859-1");
        }