POST JSON array body to .NET web service using Volley in Android

Question

I am trying to POST a JSON body using Volley in Android and after spending many hours with no success I am writing this question.

Following is mine code snippet

StringRequest residentSyncRequest = new StringRequest(Request.Method.POST, Commons.URL,this,this,ADD_REQ){
    @Override
    public Map<String, String> getHeaders() throws AuthFailureError {

        HashMap<String,String> params = new HashMap<String, String>();
        params.put("Content-Type","application/json");

        return params;
    }

    @Override
    public byte[] getBody() throws AuthFailureError {
        JSONArray jsonArray = new JSONArray();
        JSONObject jsonObject = new JSONObject();

        SharedPreferences sharedPreferences = getActivity().getSharedPreferences(Commons.PREF_NAME, Context.MODE_PRIVATE);

        try {
            jsonObject.put("RowID","0");
            jsonObject.put("LocalID","100");
            jsonObject.put("LoginUserID",sharedPreferences.getString(Commons.pref_loginUserId,""));                      
            jsonObject.put("AppToken",sharedPreferences.getString(Commons.pref_appToken,""));

        } catch (JSONException e) {
            e.printStackTrace();
        }

        jsonArray.put(jsonObject);

        return jsonArray.toString().getBytes();
    }
};
VollyRequest.getRequestQueue(getActivity()).add(residentSyncRequest);

and I am getting following response

E/Volley﹕ [255] BasicNetwork.performRequest: Unexpected response code 400 for ...

I tried to call the same web service using postman chrome extension and the service is working just fine.

Not sure if I need to do any encoding before returning byte[] .

Please help.

Thanks in advance.

Answer 1

Volley默认情况下将所有发布参数作为JSON值放置，因此您只需要使用Request而不是StringRequest，而只需添加要发布的所有JSON值作为常规发布值即可。

Answer 2

Volley doesn't support JsonArray request directly like JsonObject request.Hope they can add this function in next version because there are a lot of api only provide JsonArray.

EDIT:

Actually there is a solution here .