How can I covert Object to List<String> ?

[nmorel]

How can I covert Object to List ?

from gwt-jackson.

[nmorel]

resty-gwt, you sure ?
Or GWTP Rest Dispatch ?

What type do you have instead of List ? And what is the json you are trying to deserialize ?

[confile]

GWTP Rest Dispatch uses GWT-Jackson (this project)

[doggie1989]

resty-gwt 2.0.1
gwt-jackson 0.7.0

[nmorel]

Hmm that's odd. I'm not aware of resty-gwt using gwt-jackson. I thought they add their own serializer.

Since your map is in the param, I guess the ClassCastException occurs in server side ? Do you have the json produced by GWT ? You can see it with the developers tools of Chrme for exemple.

[doggie1989]

ClassCastException occurs in client side.

server side : spring boot ,jackson 2
client side: restygwt.
in 2.0.1 version ,they use gwt-jackson...

[doggie1989]

{"id":"54980bc3d4c6583a12ffbfa6","sku":"aaaaaaa","mainPicUrl":"http://static.cheaplify.com.au/SH141111B001_0.jpg","name":"bbbbbbb","orderUrls":["fdsafdsafdsa","fdsafdsafdas"],"infoUrls":["fdsafdsafdsafas","fdsafdsafdsafdsa"],"cost":11.0,"notes":"","stockQty":12,"creationTime":1419250626478,"modificationTime":1419250701184,"type":"SUCCESS","message":"SUCCESS"}

Map<String,Object> response...
List orderUrls = (List)response.get("orderUrls"); // can not cast...

[nmorel]

Can you try to cast into JSONArray ?

The last time I check, restygwt manipulates JSONValue.

[doggie1989]

Client:
still Uncaught java.lang.ClassCastException
JSONArray jsonArray = (JSONArray) whProduct.get("orderUrls");

Server side:
it is
List orderUrls;

[doggie1989]

Hi Nmorel

I double checked resty-gwt,it does not use gwt-jackson...

and i change method to ..

@Path("http://localhost:8081")
public interface WhService extends RestService {

  @POST
  @Path("/{methodUrl}")
  public void postRequest(@PathParam("methodUrl") String methodUrl,Map<String,Object> request,MethodCallback<JSONValue> callback);


}

JSONValue response = ...
Map<String, Object> responseMap = mapper.read(response.toString()); //use your project
 for (String orderUrl : (List<String>) responseMap.get("orderUrls")) {
      TextBox tbOrderUrl = new TextBox();
      tbOrderUrl.setText((String)orderUrl);
      vpOrderUrl.add(tbOrderUrl);
    }
    LogUtils.log("ok");

it works!

[nmorel]

Nice :)

Maybe you can try GWTP Rest Dispatch, it should have the same functionalities as RestyGWT but uses gwt-jackson.

[doggie1989]

:)
Thank you for your project.
I will try rest dispatch soon.

[reinert]

As an alternative, you could try requestor. It is integrated to gwt-jackson too.

[nmorel]

I'll add frameworks using gwt-jackson to the README