fetch 파일다운로드

javascript

닫기 줄바꿈

/* 자바 스크립트 */

function fileDownLoad(fileName,finalFileName,path){
‌const paramData = { 
​​​​​​​​​method: 'POST',
​​​​​​​​​body: JSON.stringify({ fileName, finalFileName,path }),
​​​​​​​​​headers: {
​​​​​​​​​​​​'Content-Type': 'application/json'
​​​​​​​​​}
​​​​};
‌
‌fetch('/logFarm/downloadFetchFiles.json',paramData)
‌​​.then(res => res.blob())
‌​​.then(data => {
‌‌​​const a = document.createElement("a");
‌‌​​a.href = window.URL.createObjectURL(data);
‌‌​​a.download = fileName
‌‌​​a.click();
‌​​});
‌
}

java

닫기 줄바꿈

/* 자바 */
/**
	 *
	 * <pre>
	 * @desc  fetch 파일 다운로드
‌​* @param
‌​* @return
‌​* @return
‌​* @throws
‌​* </pre>
‌​*/
‌@RequestMapping(value = "/downloadFetchFiles.json" )
‌public void downloadFetchFiles(HttpServletRequest request, HttpServletResponse response,@RequestBody String jsonData) {

‌‌logger.debug("-------------- 파일다운로드 -------------");

‌‌logger.debug("sendPushMessage.json jsonData 문자형식 : " + jsonData);
‌‌
‌‌JsonParser parser = new JsonParser();
‌​​​​JsonElement element = parser.parse(jsonData);
‌​​​​String getPath = element.getAsJsonObject().get("path").getAsString();
‌​​​​String getName = element.getAsJsonObject().get("fileName").getAsString();
‌​​​​String getOrginFileName = element.getAsJsonObject().get("finalFileName").getAsString();
‌​​​​​​
‌‌‌‌​
‌‌logger.debug("getOrginFileName : " + getOrginFileName);
‌‌logger.debug("getName : " + getName);
‌‌logger.debug("getPath : " + getPath);

‌‌//String filePath = EgovProperties.getProperty("Globals.fileStorePath").trim() + getPath +SP+ getOrginFileName;
‌‌String filePath = EgovProperties.getProperty("Globals.fileStorePath").trim() + getOrginFileName;

‌‌logger.debug("filePath : " + filePath);
‌‌
‌‌Map<String, Object> reMap = new HashMap<>();
‌​​​​OutputStream os = null;
‌​​​​InputStream is = null;
‌‌BufferedInputStream bis = null;
‌‌BufferedOutputStream bos = null;
‌‌ServletOutputStream sout = null;
‌‌File f = new File(filePath);

‌​​​try {
‌‌‌​​​response.reset();
‌‌‌​​​response.setCharacterEncoding("utf-8");
‌‌‌​​​response.setContentType("application/octet-stream");
‌‌‌​​​response.setHeader("Content-Disposition","attachment;filename=" + new String(getName.getBytes("UTF-8"), "ISO8859-1"));


‌‌‌‌is = new FileInputStream(f);
‌‌‌‌if (is == null) {
‌‌‌‌‌reMap.put("msg", "파일이 존재 하지 않습니다.");
‌‌‌​​​​​​​}
‌‌‌‌sout = response.getOutputStream();

‌‌‌‌bis = new BufferedInputStream(is);
‌‌‌‌bos = new BufferedOutputStream(sout);
‌‌‌‌byte[] buff = new byte[2048];
‌‌‌‌int bytesRead;
‌‌‌‌while (-1 != (bytesRead = bis.read(buff, 0, buff.length))) {
‌‌‌‌​​​bos.write(buff, 0, bytesRead);
‌‌‌‌}
‌‌‌‌bos.flush();
‌‌‌‌bos.close();
‌‌‌‌bis.close();
‌‌‌‌is.close();
‌‌​​​​​​​​sout.close();
‌‌‌//	os.close();
‌​​​} catch (IOException e) {
‌‌​​​​​​reMap.put("msg", "처리중 오류가 발생하였습니다.");
‌​​​} catch (Exception e) {
‌‌​​​reMap.put("msg", "처리중 오류가 발생하였습니다.");
‌​​​} finally
‌​​​{
‌‌​​​if (bis != null)
‌‌​​​{
‌‌‌​​​try
‌‌‌​​​{
‌‌‌‌​​​bis.close();
‌‌‌​​​} catch (RuntimeException e) {
‌‌‌‌​​​f = null;
‌‌‌​​​}
‌‌‌​​​catch (Exception e)
‌‌‌​​​{
‌‌‌‌​​​f = null;
‌‌‌​​​}
‌‌​​​}
‌‌​​​if (bos != null)
‌‌​​​{
‌‌‌​​​try
‌‌‌​​​{
‌‌‌‌​​​bos.close();
‌‌‌​​​} catch (RuntimeException e) {
‌‌‌‌​​​f = null;
‌‌‌​​​}
‌‌‌​​​catch (Exception e)
‌‌‌​​​{
‌‌‌‌​​​f = null;
‌‌‌​​​}
‌‌​​​}
‌‌​​​if (is != null)
‌‌​​​{
‌‌‌​​​try
‌‌‌​​​{
‌‌‌‌​​​is.close();
‌‌‌​​​} catch (RuntimeException e) {
‌‌‌‌​​​f = null;
‌‌‌​​​}
‌‌‌​​​catch (Exception e)
‌‌‌​​​{
‌‌‌‌​​​f = null;
‌‌‌​​​}
‌‌​​​}
‌‌​​​if (sout != null)
‌‌​​​{
‌‌‌​​​try
‌‌‌​​​{
‌‌‌‌​​​sout.close();
‌‌‌​​​} catch (RuntimeException e) {
‌‌‌‌​​​f = null;
‌‌‌​​​}
‌‌‌​​​catch (Exception e)
‌‌‌​​​{
‌‌‌‌​​​f = null;
‌‌‌​​​}
‌‌​​​}
‌‌​​​if (os != null)
‌‌​​​{
‌‌‌​​​try
‌‌‌​​​{
‌‌‌‌​​​os.close();
‌‌‌​​​} catch (RuntimeException e) {
‌‌‌‌​​​f = null;
‌‌‌​​​}
‌‌‌​​​catch (Exception e)
‌‌‌​​​{
‌‌‌‌​​​f = null;
‌‌‌​​​}
‌‌​​​}
‌​​​}

‌}