upload file using rest services in spring mvc - spring

Question

I want to upload a file( any type of file ) into a forlder using web services and spring mvc so I have a sever side and a client side.
On my client side this is the code
#RequestMapping(value = "/uploadMultipleFile", method = RequestMethod.POST , produces="application/json")
public #ResponseBody
Boolean uploadMultipleFileHandler(
#RequestParam("name") MultipartFile[] files) {
MailService ms= new MailService();
Map<String, List<ByteArrayResource>>rval = new HashMap<String, List<ByteArrayResource>>();
String message = "";
MultiValueMap<String, Object> map = new LinkedMultiValueMap<>();
List<Object> files1 = new ArrayList<>();
List<Object> files2 = new ArrayList<>();
for (int i = 0; i < files.length; i++) {
MultipartFile file = files[i];
System.out.println(file.getOriginalFilename());
try {
byte[] bytes = file.getBytes();
files1.add(new ByteArrayResource(bytes));
files2.add(file.getOriginalFilename());
//System.out.println(map.toString());
} catch (IOException e) {
e.printStackTrace();
}
}
map.put("files", files1);
map.put("names", files2);
System.out.println(map.get("files").toString());
RestTemplate restTemplate = new RestTemplate();
String SERVER_URI="http://localhost:8080/BackEndFinalVersion";
Boolean p=restTemplate.postForObject(SERVER_URI+"/uploadMultipleFile", map, Boolean.class);
System.out.println(p.toString());
//message = message + ms.encodeFileToBase64Binary( bytes);
//rval.put("success",message);
return true;
}
and the server side code is
#RequestMapping(value = "/uploadMultipleFile", method = RequestMethod.POST, produces = "application/json")
public #ResponseBody Boolean uploadMultipleFileHandler(#RequestParam("files") List<Object> files , #RequestParam("names") List<Object> names) {
//MailService ms= new MailService();
//Map<String, Object> rval = new HashMap<String, Object>();
String message = "";
System.out.println("looool");
System.out.println(files);
System.out.println(names);
//System.out.println(files.get(0).toString());
for (int i = 0; i < files.size(); i++) {
System.out.println(files.get(i).getClass());
String file = (String)files.get(i);
try {
byte[] bytes = file.getBytes();
//FileUtils.writeStringToFile(new File("log.txt"), file, Charset.defaultCharset());
// Creating the directory to store file
String rootPath = "C:/Users/Wassim/Desktop/uploads";
File dir = new File(rootPath);
if (!dir.exists())
dir.mkdirs();
File serverFile = new File(dir.getAbsolutePath() + File.separator + ( names.get(i)));
BufferedOutputStream stream = new BufferedOutputStream(new FileOutputStream(serverFile));
stream.write(bytes);
stream.close();
//message = message + "You successfully uploaded file=" + ( (MultipartFile) files.get(i)).getOriginalFilename() + "<br />";
//FileUtils.writeByteArrayToFile(new File(dir.getAbsolutePath() + File.separator + files.get(i).getOriginalFilename()), ms.decodeFileToBase64Binary(ms.encodeFileToBase64Binary( bytes)));
//rval.put("success"+i, message);
System.out.println("noooo");
} catch (Exception e) {
message += "You failed to upload " + " => " + e.getMessage();
//rval.put("error", message);
return false;
}
}
return true;
My problem is that this code doesn't work only with .txt files
can any one support me ??