BasicNetwork.performRequest：意外的响应代码500

Question

I am using volley for POST method to server. I am sending two parametars and I am getting this Unexpected response code 500.

Here is JsonObjectReguest code:

final String URL

            JsonObjectRequest req = new JsonObjectRequest(Request.Method.POST,URL, null,
                    new Response.Listener<JSONObject>() {
                        @Override
                        public void onResponse(JSONObject response) {
                            try {
                                VolleyLog.v("Response:%n %s", response.toString(4));
                            } catch (JSONException e) {
                                e.printStackTrace();
                            }
                        }
                    }, new Response.ErrorListener() {
                @Override
                public void onErrorResponse(VolleyError error) {
                    VolleyLog.e("Error: ", error.getMessage());
                }
            }){
                protected HashMap<String, String> getParams() {
                    HashMap<String, String> params = new HashMap<String, String>();
                    params.put("cid", String.valueOf(id));
                    params.put("positions", string);

                    return params;
                }
                @Override
                public HashMap<String, String> getHeaders() throws AuthFailureError {
                    HashMap<String,String> headers = new HashMap<String, String>();
                    headers.put("Content-Type","application/x-www-form-urlencoded");
                    return headers;
                }
            };


            AppController.getInstance().addToRequestQueue(req);
        }

Here is my logcat:

04-08 02:44:05.110 32385-32511/com.example.bukic.postexample I/System.out﹕ propertyValue:true 04-08 02:44:05.114 32385-32511/com.example.bukic.postexample I/System.out﹕ [socket][3] connection maps.b1.finki.ukim.mk/194.149.138.7:80;LocalPort=45144(2500) 04-08 02:44:05.115 32385-32511/com.example.bukic.postexample I/System.out﹕ [CDS]connect[maps.b1.finki.ukim.mk/194.149.138.7:80] tm:2 04-08 02:44:05.116 32385-32511/com.example.bukic.postexample D/Posix﹕ [Posix_connect Debug]Process com.example.bukic.postexample :80 04-08 02:44:05.189 32385-32511/com.example.bukic.postexample I/System.out﹕ [socket][/192.168.1.100:45144] connected 04-08 02:44:05.189 32385-32511/com.example.bukic.postexample I/System.out﹕ [CDS]rx timeout:2500 04-08 02:44:05.302 32385-32511/com.example.bukic.postexample I/System.out﹕ Shutdown rx/tx 04-08 02:44:05.303 32385-32511/com.example.bukic.postexample I/System.out﹕ [CDS]close[45144] 04-08 02:44:05.304 32385-32511/com.example.bukic.postexample I/System. out﹕ Shutdown rx/tx 04-08 02:44:05.305 32385-32511/com.example.bukic.postexample I/System.out﹕ Shutdown rx/tx 04-08 02:44:05.307 32385-32511/com.example.bukic.postexample I/System.out﹕ close [socket][/0.0.0.0:45144] 04-08 02:44:05.309 32385-32511/com.example.bukic.postexample E/Volley﹕ [3280] BasicNetwork.performRequest: Unexpected response code 500 for http://maps.b1.finki.ukim.mk/MapController/save 04-08 02:44:05.313 32385-32385/com.example.bukic.postexample E/Volley﹕ 1 2.onErrorResponse: Error:

Answer 1

![One of params is cid ][1]

[1]: http://i.stack.imgur.com/lY1R5.jpg one of params is cid

![One of params is cId ][1]

[1]: http://i.stack.imgur.com/B0AHG.jpg one of params is cId instead of cid

I recommend you a extension of chrome named Postman . We can send http request and verify the result by using it and it is very useful.