String jsonUrl = "http://ip.taobao.com/service/getIpInfo.php?ip=63.223.108.42&qq-pf-to=pcqq.group"; //JSON 的url

RequestQueue mRequestQueue = Volley.newRequestQueue(this);

JsonObjectRequest jsonObjectRequest = new JsonObjectRequest(Request.Method.GET, jsonUrl, null, new Response.Listener<JSONObject>() {

    @Override

    public void onResponse(JSONObject response) {

        try {

              textView.setText("JSON:  " + response.getJSONObject("data").getString("country"));//处理自己的JSON数据，根据自己的key来取值就行了

            } catch (JSONException e) {

              e.printStackTrace();

              textView.setText("exception");

              }

     }}, new Response.ErrorListener() {

            @Override

            public void onErrorResponse(VolleyError error) {

                textView.setText("error");

            }

        });

        //添加到requestQueue

        mRequestQueue.add(jsonObjectRequest);

compile 'com.mcxiaoke.volley:library-aar:1.0.0'