Android post方法，得到结果

Question

我使用post方法将文件上传到我的服务器。这部分还可以。但它无法正确读取结果。

它必须返回：{＆＃34; id＆＃34;：＆＃34; 5＆＃34; ，＆＃34; url＆＃34;：＆＃34; http://aaaaaaaa/bnm.jpg＆＃34;}。

但它返回：64bnm.jpg []。

相关代码段：

public void uploadFile() throws IOException {
            Log.i("tago", "PageFragment1 resim gonderme islemi");
            HashMap<String, String> postDataParams = new HashMap<>();
            postDataParams.put("placeID", nameofChannel);
            postDataParams.put("img", image);
            postDataParams.put("id", SharedPrefIdAl());
            URL url;
            String response = "";
            try {
                url = new URL("http://185.22.187.60/shappy/place_photos/place_picture.php");

                HttpURLConnection conn = (HttpURLConnection) url.openConnection();
                conn.setReadTimeout(15000);
                conn.setConnectTimeout(15000);
                conn.setRequestMethod("POST");
                conn.setDoInput(true);
                conn.setDoOutput(true);


                OutputStream os = conn.getOutputStream();
                BufferedWriter writer = new BufferedWriter(
                        new OutputStreamWriter(os, "UTF-8"));
                writer.write(getPostDataString(postDataParams));

                writer.flush();
                writer.close();
                os.close();
                try {
                    BufferedReader in;
                    if (conn.getResponseCode() == 200) {
                        in = new BufferedReader(new InputStreamReader(conn.getInputStream()));
                        String inputline = in.readLine();
                        Log.i("tago", "kanal for " + inputline);
                        JSONArray jsonArray = new JSONArray(inputline);
                        JSONObject jsonObject = jsonArray.getJSONObject(0);
                        yenikanalid = jsonObject.optString("id");
                        yenikanalurl = jsonObject.optString("photo");
                        Log.i("tago", "kanal for kanalid " + yenikanalid + "kanalurl " + yenikanalurl);
                    }
                } catch (Exception e) {
                    e.printStackTrace();
                }
            } catch (Exception e) {

            }
        }

我从logcat读取输入行。为什么会这样？