Upload.upload({
 url: 'upload',
 fields: {'username': 'zouroto'}, // additional data to send
 file: file
 }).progress(function (evt) {
 var progressPercentage = parseInt(100.0 * evt.loaded / evt.total);
 console.log('progress: ' + progressPercentage + '% ' + evt.config.file.name);
 }).success(function (data, status, headers, config) {
 console.log('file ' + config.file.name + 'uploaded. Response: ' + data);
 });

@Controller
public class UiController {

 @ResponseStatus(HttpStatus.OK)
 @RequestMapping(value = "/upload")
 public void upload(@RequestParam("file") MultipartFile file, @RequestParam("username") String username ) throws IOException {

 byte[] bytes;

 if (!file.isEmpty()) {
  bytes = file.getBytes();
  //store file in storage
 }

 System.out.println(String.format("receive %s from %s", file.getOriginalFilename(), username));
 }

}

 <bean id="multipartResolver"
 class="org.springframework.web.multipart.commons.CommonsMultipartResolver">
 <property name="maxUploadSize" value="5000000"/>
 </bean>

 <dependency>
  <groupId>commons-fileupload</groupId>
  <artifactId>commons-fileupload</artifactId>
  <version>1.3.1</version>
 </dependency>