从GET API android获取数据时的basicnetwork.performrequest异常

Question

我需要从以下api

的数据数组中获取android中的数据

http://www.quandl.com/api/v3/datasets/MULTPL/SP500_REAL_PRICE_MONTH.json?start_date=1915-01-01&api_key=UPqWzYxopvhzdoRt5jTS

我尝试了JSONObject请求和字符串请求

JsonObjectRequest obreq = new JsonObjectRequest(Request.Method.GET, Url.URL_SNP_2,
           // The third parameter Listener overrides the method onResponse() and passes
           //JSONObject as a parameter
           new Response.Listener<JSONObject>() {

               // Takes the response from the JSON request
               @Override
               public void onResponse(JSONObject response) {
                   Log.d("Response", "Getting CAB Response: " + response.toString());

                   Toast.makeText(Fragment_CAB_SNP_2.this.getActivity(), "response:" + response.toString(), Toast.LENGTH_LONG).show();
                   }
                   // Try and catch are included to handle any errors due to JSON

           },
           // The final parameter overrides the method onErrorResponse() and passes VolleyError
           //as a parameter
           new Response.ErrorListener() {
               @Override
               // Handles errors that occur due to Volley
               public void onErrorResponse(VolleyError error) {
                   Log.e("Volley", "Error");
               }
           }
   );
   // Adds the JSON object request "obreq" to the request queue
   requestQueue.add(obreq);

但它提供以下异常

E/Volley: [35011] BasicNetwork.performRequest: Request at http://www.quandl.com/api/v3/datasets/MULTPL/SP500_REAL_PRICE_MONTH.json?start_date=1915-01-01&api_key=UPqWzYxopvhzdoRt5jTS has been redirected to https://www.quandl.com/api/v3/datasets/MULTPL/SP500_REAL_PRICE_MONTH.json?start_date=1915-01-01&api_key=UPqWzYxopvhzdoRt5jTS
05-11 23:02:25.134 27238-27238/com. E/Volley: Error

没有得到任何回复。请帮助我