Storing images in a directory - Spring MVC

I am a beginner using Spring MVC , i am developing a social network android application. The user should have the ability to upload posts in news feed.

The each post can have maximum one image attached , so i need to store image files on server.

I have already implemented an example of the upload process using RestTemplate :

FormHttpMessageConverter formHttpMessageConverter = new FormHttpMessageConverter();
    formHttpMessageConverter.setCharset(Charset.forName("UTF8"));

    RestTemplate restTemplate = new RestTemplate();
    restTemplate.getMessageConverters().add( formHttpMessageConverter );
    restTemplate.getMessageConverters().add(new MappingJackson2HttpMessageConverter());
    restTemplate.setRequestFactory(new HttpComponentsClientHttpRequestFactory());


    MultiValueMap<String, Object> map = new LinkedMultiValueMap<>();
    map.add("file", new FileSystemResource(path)); /* path - is the path of the
                                                        image i want to upload */
    map.add("username","user1");

    HttpHeaders imageHeaders = new HttpHeaders();
    imageHeaders.setContentType(MediaType.MULTIPART_FORM_DATA);
    HttpEntity<MultiValueMap<String, Object>> imageEntity = new HttpEntity<>(map, imageHeaders);
    restTemplate.exchange(messageURL, HttpMethod.POST, imageEntity, Boolean.class);

And on the Spring MVC side :

@RequestMapping(value = "/uploadPhoto/{id}", method = RequestMethod.POST)
@ResponseBody
public ResponseEntity<String> uploadPhoto(@RequestParam("file") MultipartFile srcFile,
                                           @PathVariable("id") Integer id,
                                           @RequestParam("username") String username)
{
    System.out.println("Photo name = "+srcFile.getName());
    System.out.println("Photo size = "+srcFile.getSize());
    System.out.println("Photo original name = "+srcFile.getOriginalFilename());
    System.out.println("Username = "+username);


    String uploadsDir = "/uploads/";


    String realPathtoUploads =  context.getRealPath(uploadsDir);
    if(! new File(realPathtoUploads).exists())
    {
        new File(realPathtoUploads).mkdir();
    }



    String orgName = srcFile.getOriginalFilename();
    String filePath = realPathtoUploads + orgName;
    File dest = new File(filePath);
    try 
    {
        srcFile.transferTo(dest);
    } 
    catch (IllegalStateException | IOException e)
    {
        // TODO Auto-generated catch block
        e.printStackTrace();
    }


    return null;
}

This code works, using it i can upload a photo from the phone storage to the server, but, the problem is that i want to get the URL for the uploaded photo, in order to save it on database and to be able to download it in the future, how can i do that ?