크로스브라우징 파일다운로드 파일명 안깨지게하기

public static void sendExcel(HttpServletRequest request, HttpServletResponse response, XSSFWorkbook

workBook, String fileName) throws Exception {

 String browser = getBrowser(request);

 String finalFileName = fileName + "_" + (new SimpleDateFormat("yyyyMMdd")).format(new Date()) +

".xlsx";

 String dispositionPrefix = "attachment; filename=";

 String encodedFilename = null;

 if (browser.equals("MSIE")) {

  encodedFilename = URLEncoder.encode(finalFileName, "UTF-8").replaceAll("\\+", "%20");

 } else if (browser.equals("Trident")) { // IE11 문자열 깨짐 방지

  encodedFilename = URLEncoder.encode(finalFileName, "UTF-8").replaceAll("\\+", "%20");

 } else if (browser.equals("Firefox")) {

  encodedFilename = "\"" + new String(finalFileName.getBytes("UTF-8"), "8859_1") + "\"";

 } else if (browser.equals("Opera")) {

  encodedFilename = "\"" + new String(finalFileName.getBytes("UTF-8"), "8859_1") + "\"";

 } else if (browser.equals("Chrome")) {

  StringBuffer sb = new StringBuffer();

  for (int i = 0; i < finalFileName.length(); i++) {

  char c = finalFileName.charAt(i);

  if (c > '~') {

      sb.append(URLEncoder.encode("" + c, "UTF-8"));

  } else {

      sb.append(c);

  }

  }