ajax 파일 다운로드 (경로, 파일명)

jsp

<a href="#none" class="download" onclick="fn_Download('c:/nasdata/ast/rtn/201902','파일명.xlsx')">파일명.xlsx</a> ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

js

function fn_Download(filePath,fileName){ $("#frmPopFiledown").find("#filePath").val(filePath); $("#frmPopFiledown").find("#fileName").val(fileName); document.frmPopFiledown.action = "/downloadFiles.json"; document.frmPopFiledown.submit(); }

controller

@RequestMapping(value = "//downloadFiles.json", method = RequestMethod.POST) public void downloadAppFile(HttpServletRequest request, HttpServletResponse response) throws Exception { try { Map<String, Object> map = new HashMap<String, Object>(); cardComService.downloadFile(request, response); } catch (Exception e) { e.printStackTrace(); } }

serviceImpl

public void downloadFile(HttpServletRequest request, HttpServletResponse response) throws Exception { try { String filePath = (String)request.getParameter("FILE_PATH"); //  String fileName = (String)request.getParameter("FILE_NAME"); System.out.println(filePath); System.out.println(fileName); //저장경로, 파일이름 File f = new File(filePath + "/" + fileName);         BufferedInputStream bis = null;         BufferedOutputStream bos = null;         byte b[] = new byte[4096];         int read = 0;         String fileExtention = fileName.substring(fileName.lastIndexOf(".") + 1);         if(f.isFile()){          response.setHeader("Pragma", "no-cache"); response.setHeader("Accept-Ranges", "bytes");             response.setHeader("Content-Disposition", "attachment;filename=" + URLEncoder.encode(fileName, "UTF-8") + ";");             response.setHeader("Content-Transfer-Encoding", "binary;");             response.setCharacterEncoding("UTF-8");             switch (fileExtention){             case "ppt": response.setContentType("application/vnd.ms-powerpoint; charset=utf-8");              break;             case "pptx": response.setContentType("application/vnd.openxmlformats-officedocument.presentationml.presentation; charset=utf-8");              break;             case "xls": response.setContentType("application/vnd.ms-excel; charset=utf-8");              break;             case "xlsx": response.setContentType("application/vnd.openxmlformats-officedocument.spreadsheetml.sheet; charset=utf-8");              break;             case "doc": response.setContentType("application/msword; charset=utf-8");      break;             case "docx": response.setContentType("application/vnd.openxmlformats-officedocument.wordprocessingml.document; charset=utf-8");      break;             case "pdf": response.setContentType("application/pdf; charset=utf-8");      break;      default :response.setContentType("application/octet-stream; charset=utf-8");      break;             } //          response.setContentType("application/octet-stream; charset=utf-8");             response.setContentLength((int)f.length());//size setting             try{                 bis = new BufferedInputStream(new FileInputStream(f));                 bos = new BufferedOutputStream(response.getOutputStream());                 while((read = bis.read(b)) != -1){                     bos.write(b, 0, read);                 }                 bis.close();                 bos.flush();                 bos.close();             }catch(Exception e){                 throw new EgovBizException(" 파일 생성 에러가 발생하였습니다.");             }finally{                 if(bis != null){                     bis.close();                 }                 //f.delete();             }         }else{             throw new EgovBizException("파일이 잘못 되었습니다.");         } } catch (Exception e) { e.printStackTrace(); } }