I am trying to run a simple controller with a method that will receive
- A String with a value
- A file (MultipartFile object)
After some investigation (Sending Multipart File as POST parameters with RestTemplate requests) I ended up adding into my web.xml
<filter>
<filter-name>multipartFilter</filter-name>
<filter-class>org.springframework.web.multipart.support.MultipartFilter</filter-class>
</filter>
<filter-mapping>
<filter-name>multipartFilter</filter-name>
<url-pattern>/REST/*</url-pattern>
</filter-mapping>
My application context file
<bean id="multipartResolver" class="org.springframework.web.multipart.commons.CommonsMultipartResolver">
<property name="maxUploadSize">
<value>104857600</value>
</property>
<property name="maxInMemorySize">
<value>4096</value>
</property>
</bean>
The controller looks like
@Controller
@RequestMapping("/image")
public class ImageController extends RestApiController {
private static final Logger log = LoggerFactory.getLogger(ImageController.class);
@RequestMapping(value="/simple", method = RequestMethod.POST, consumes="multipart/form-data")
public @ResponseBody boolean save(
@RequestParam(value = "file", required = false) MultipartFile file,
@RequestParam(value = "name", required = false) String name) {
//Some code here
return true;
}
So far I have been able to run unit tests against the controller with no problem, but I seem to be stuck when it comes to create a real http request.
I have tried with POSTMAN, but after some investigation seems that it does not set the multipart/form-data header properly, I have tried removing it, and the problem persists.
I have also tried with CURL
curl http://127.0.0.1:8080/content/REST/image/simple -F "file=@/home/jmoriano/Pictures/simple.jpeg" -F "name=someName" -v
I have also tried with a RestTemplate object
public Boolean update() {
RestTemplate restTemplate = new RestTemplate();
try {
FormHttpMessageConverter formConverter = new FormHttpMessageConverter();
formConverter.setCharset(Charset.forName("UTF8"));
restTemplate.getMessageConverters().add(formConverter);
restTemplate.setRequestFactory(new HttpComponentsClientHttpRequestFactory());
HttpHeaders httpHeaders = new HttpHeaders(); httpHeaders.setAccept(Collections.singletonList(MediaType.parseMediaType("application/json")));
MultiValueMap<String, Object> parts = new LinkedMultiValueMap<String, Object>();
parts.add("file", new FileSystemResource("/home/jmoriano/Pictures/simple.jpeg"));
parts.add("name", "name");
return restTemplate.postForObject("http://127.0.0.1:8080/content/REST/image/simple", parts, Boolean.class);
} catch (Exception e) {
e.printStackTrace();
log.error("Ouch!", e);
}
return false;
}
Just to be clear, the problem is not in the "name" parameter, that one works fine, however the MultipartFile is empty.
By debugging the code, I managed to check the MultiPartFilter class which receives an HttpServletRequest object, such object has its "parts" attribute already empty there. So the problem seems to be related with the way I am making the request... seems that my postman/curl/java attempts have failed... do you see anything incorrect in my config?
