Spring RestTemplate org.springframework.web.client.HttpClientErrorException：406空

Question

嗨，我想用RestTemplate来消耗这个控制器 我该怎么办

 @PostMapping(produces = MediaType.APPLICATION_OCTET_STREAM_VALUE)
  public Object convertToUsingParam(
      @ApiParam(value = "The input document to convert.", required = true) @RequestParam("data")
          final MultipartFile inputFile,
      @ApiParam(value = "The document format to convert the input document to.", required = true)
          @RequestParam(name = "format")
          final String convertToFormat,
      @ApiParam(value = "The custom options to apply to the conversion.")
          @RequestParam(required = false)
          final Map<String, String> parameters) {

    LOGGER.debug("convertUsingRequestParam > Converting file to {}", convertToFormat);
    return convert(inputFile, convertToFormat, parameters);
  }

我以这种方式使用

    HttpHeaders headers = new HttpHeaders();
    headers.setContentType(MediaType.MULTIPART_FORM_DATA);
    MultiValueMap<String, Object> body = new LinkedMultiValueMap<>();


    body.add("data", new ByteArrayResource(bodyContent));

    HttpEntity<MultiValueMap<String, Object>> requestEntity = new HttpEntity<>(body, headers);
    restTepmlate.getMessageConverters().add(new FormHttpMessageConverter()); 

    try {
        ResponseEntity<byte[]> response = restTepmlate
                .exchange("http://10.20.14.247:8081/lool/convert-to/pdf",
                HttpMethod.POST,
                requestEntity,
                byte[].class);
    } catch (HttpClientErrorException e) {
        e.printStackTrace();
    }

但它返回

org.springframework.web.client.HttpClientErrorException：406空     在org.springframework.web.client.DefaultResponseErrorHandler.handleError（DefaultResponseErrorHandler.java:94）     在org.springframework.web.client.DefaultResponseErrorHandler.handleError（DefaultResponseErrorHandler.java:79）     在org.springframework.web.client.ResponseErrorHandler.handleError（ResponseErrorHandler.java:63）     在org.springframework.web.client.RestTemplate.handleResponse（RestTemplate.java:766）     在org.springframework.web.client.RestTemplate.doExecute（RestTemplate.java:724）     在org.springframework.web.client.RestTemplate.execute（RestTemplate.java:680）     在org.springframework.web.client.RestTemplate.exchange（RestTemplate.java:600）