Upload image in resource folder Spring boot

I tried to upload image as static folder in resource folder. But what is problem with this is I can’t access images by URL. Can you offer solution for this ?

>Solution :

It is pretty easy to create a microservice to upload and access images.

The following code is an example I wrote for some exercise in which you create a subfolder for each user, to avoid names’ conflict.

Tell me if it is clear enough, or I can explain.

@RestController
@RequestMapping("")
public class Images {

    private void saveFile(String uploadDir, String filename, MultipartFile multipartFile) throws IOException {
        Path uploadPath = Paths.get(uploadDir);

        if (!Files.exists(uploadPath)) {
            Files.createDirectories(uploadPath);
        }

        try (InputStream inputStream = multipartFile.getInputStream()) {
            Path filePath = uploadPath.resolve(filename);
            Files.copy(inputStream, filePath, StandardCopyOption.REPLACE_EXISTING);
        } catch (IOException ioe) {
            throw new IOException("Could not save image file: " + filename, ioe);
        }
    }

    @PostMapping("/upload")
    public void upload(@RequestParam String userID, @RequestParam("image") MultipartFile multipartFile) {

        String fileName = StringUtils.cleanPath(Objects.requireNonNull(multipartFile.getOriginalFilename()));
        String uploadDir = "user-photos/" + userID;

        try {
            saveFile(uploadDir, fileName, multipartFile);
        } catch (IOException e) {
            e.printStackTrace();
        }
    }

    @RequestMapping(value = "get/{userID}/{imageName}", method = RequestMethod.GET)
    public ResponseEntity<Resource> getImage(@PathVariable String userID, @PathVariable String imageName) {

        File file = new File(String.format("user-photos/%s/%s", userID, imageName));

        HttpHeaders header = new HttpHeaders();
        header.add("Cache-Control", "no-cache, no-store, must-revalidate");
        header.add("Pragma", "no-cache");
        header.add("Expires", "0");

        Path path = Paths.get(file.getAbsolutePath());
        ByteArrayResource resource;
        try {
            resource = new ByteArrayResource(Files.readAllBytes(path));
        } catch (IOException e) {
            e.printStackTrace();
            throw new ResponseStatusException(HttpStatus.NOT_FOUND);
        }

        return ResponseEntity.ok()
                .headers(header)
                .contentLength(file.length())
                .contentType(MediaType.IMAGE_JPEG)
                .body(resource);
    }
}