파일 압축 후 HttpServletResponse로 내보내기

@RequestMapping(value = "/downloadZipFile.do")
public void downloadZipFile(@RequestParam("bbsId") String bbsId, @RequestParam("atchmnflId") String atchmnflId, HttpServletResponse response) {
	String filePath = "C:/upload/bbs";

    response.setStatus(HttpServletResponse.SC_OK);
    response.setContentType("application/zip");
    response.addHeader("Content-Disposition", "attachment; filename=\"allInOne.zip\"");

    FileOutputStream fos = null;
    ZipOutputStream zipOut = null;
    FileInputStream fis = null;

    try {
        zipOut = new ZipOutputStream(response.getOutputStream());

	// db 에서 게시물에 첨부된 모든 파일들을 List에 담기
        List<CmmnNttAtflDtlVO> atchmnFileInfoList = bbsService.atchmnFlList(atchmnflId);
        
        List<File> fileList = atchmnFileInfoList.stream().map(fileInfo -> {
            return new File(filePath + "/" + fileInfo.getStreFileNm());
        }).collect(Collectors.toList());

        for(File file : fileList) {
            zipOut.putNextEntry(new ZipEntry(file.getName()));
            fis = new FileInputStream(file);

            StreamUtils.copy(fis, zipOut);

            fis.close();
            zipOut.closeEntry();
        }

        zipOut.close();

    } catch (IOException e) {
        System.out.println(e.getMessage());
        try { if(fis != null)fis.close(); } catch (IOException e1) {System.out.println(e1.getMessage());/*ignore*/}
        try { if(zipOut != null)zipOut.closeEntry();} catch (IOException e2) {System.out.println(e2.getMessage());/*ignore*/}
        try { if(zipOut != null)zipOut.close();} catch (IOException e3) {System.out.println(e3.getMessage());/*ignore*/}
        try { if(fos != null)fos.close(); } catch (IOException e4) {System.out.println(e4.getMessage());/*ignore*/}
    }
}

 

참고:

http://stackoverflow.com/questions/27952949/spring-rest-create-zip-file-and-send-it-to-the-client