no suitable HttpMessageConverter found for response type

[BartP]

Hello,

I get this exception on the Android site using RestTemplate.


Caused by: org.springframework.web.client.RestClientException : Could not extract response: no suitable HttpMessageConverter found for response type [com.tck.gia.resthome.shared.dto.MenuDTO] and content type [application/xml]

The servercode is like this(Controller):

  @RequestMapping(value = "/menu", method = RequestMethod.GET)
  @ResponseBody
  public  MenuDTO findMenu() {
    Menu menu = restService.findActiveMenu();
    if (menu != null) {
      return menu.getMenuDTO();
    }
    return null;
  }

What is the default marshaller?

On my android app I use this code:

url = new URI(StartUp.GIA_SERVER_URL + "/GiaRestHome/rest/menu/");
      RestTemplate restTemplate = new RestTemplate();
      restTemplate.setRequestFactory(new HttpComponentsClientHttpRequestFactory());
      restTemplate.getMessageConverters().add(new ByteArrayHttpMessageConverter());
      restTemplate.getMessageConverters().add(new StringHttpMessageConverter());
      restTemplate.getMessageConverters().add(new FormHttpMessageConverter());
      menuDTO = restTemplate.getForObject(url, MenuDTO.class);

I don't understand wich default converter is used. When I go directly to the browser I see this:

<com.tck.gia.resthome.shared.dto.MenuDTO>
<id>1</id>
<description>TestMenu</description>
<activated>true</activated>
<enabled>true</enabled>
<mainCategories>
<com.tck.gia.resthome.shared.dto.MenuMainCategoryDTO>
<id>1</id>
<description>Lunch</description>
<subCategories>
<com.tck.gia.resthome.shared.dto.MenuSubCategoryDTO>
<id>1</id>
<description>Vegetarisch</description>
<dishes>
<com.tck.gia.resthome.shared.dto.MenuDishDTO>
<id>1</id>
<description>Bloemkool</description>
</com.tck.gia.resthome.shared.dto.MenuDishDTO>
<com.tck.gia.resthome.shared.dto.MenuDishDTO>
<id>2</id>
<description>Sla</description>
</com.tck.gia.resthome.shared.dto.MenuDishDTO>
</dishes>
</com.tck.gia.resthome.shared.dto.MenuSubCategoryDTO>
</subCategories>
</com.tck.gia.resthome.shared.dto.MenuMainCategoryDTO>
<com.tck.gia.resthome.shared.dto.MenuMainCategoryDTO>
<id>2</id>
<description>Diner</description>
<subCategories>
<com.tck.gia.resthome.shared.dto.MenuSubCategoryDTO>
<id>2</id>
<description>Vlees</description>
<dishes>
<com.tck.gia.resthome.shared.dto.MenuDishDTO>
<id>3</id>
<description>Biefstuk</description>
</com.tck.gia.resthome.shared.dto.MenuDishDTO>
</dishes>
</com.tck.gia.resthome.shared.dto.MenuSubCategoryDTO>
</subCategories>
</com.tck.gia.resthome.shared.dto.MenuMainCategoryDTO>
</mainCategories>
</com.tck.gia.resthome.shared.dto.MenuDTO>

[Roy Clarkson]

Spring for Android provides support for XML marshaling through the use of the Simple XML Serialization library. You'll need to include the SimpleXmlHttpMessageConverter for this to work. See the reference documentation for more information.