Spring Boot) resources 폴더 내 파일 다운로드

FileService.java

@Service("fileService")
public class FileService {

	...


	/**
     * resources/{폴더 이름} 에 저장되어 있는 파일 다운로드 
     * @param fileName,dirName
     * @return ResponseEntity<Resource>
     */
    public ResponseEntity<Resource> downloadResourceFile(String fileName, String dirName) throws IOException{
        Path filePath = Paths.get(File.separatorChar + dirName, File.separatorChar + fileName);
        Resource resource = new InputStreamResource(getClass().getResourceAsStream(filePath.toString()));
        logger.info("Success download file in resources directory : " + filePath);
        return ResponseEntity.ok()
                .contentType(MediaType.APPLICATION_OCTET_STREAM)
                .cacheControl(CacheControl.noCache())
                .header(HttpHeaders.CONTENT_DISPOSITION, "attachment; filename=" + fileName + "")
                .body(resource);
    }
    
    ...
    
}

 

FileController.java

@Controller
@RestController
public class FileController {


  @Autowired
  FileService fileService;

  ...

  @GetMapping(value = "resource-file-download/{fileName}/{dirName}")
  public ResponseEntity<Resource> resourceFileDownload(@PathVariable String fileName, @PathVariable String dirName) throws IOException{
      return fileService.downloadResourceFile(fileName, dirName);
  }

}

** resource/dirName/fileName 이렇게 된 상황!