字符串無法在 Android 中轉換為 JSONObject

Question

我正在實施 JSONParsing，但它得到 org.json.JSONException 的 JSONException: Value true at Status of type java.lang.String cannot be convert to JSONObject.Thanks in advanced。

這是我的 Json 字符串

{"Upd_Post_ActivityResult":{"ResponseItem":"103_20150900021028","Status":"true"}}

這是JSON解析

 if (result != null) {
                            try
                            {
                                JSONObject jsonObj = new JSONObject(result);
                                String jsonResult = jsonObj.toString().trim();
                                Log.e("jsonResult ", " = " + jsonResult);

                                JSONObject json_Upd_Post_ActivityResult = jsonObj.getJSONObject("Upd_Post_ActivityResult");
                                Log.e("getAllActivity_List ", " = " + json_Upd_Post_ActivityResult.toString());

                                JSONObject jobj1 = json_Upd_Post_ActivityResult.getJSONObject("Status");
                                String strStatusObj = jobj1.toString();
                                Log.e("strStatusObj "," = " + strStatusObj);

                                if(strStatusObj.equals("true"))
                                {
                                    Log.e("StartMark Url Uploaded ", "Succesfully !!!!!");
                                    Log.e("Status ", "True");
                                    int imagesArray = imgItemArray.size();
                                    Log.e("imagesArray "," = "+imagesArray);


                                }
                                else
                                {
                                    Log.e("Status ","False");
                                }
                            }
                            catch (JSONException je)
                            {
                                je.printStackTrace();
                            }
                        }

這是日志錯誤

09-18 06:41:02.543  20427-20490/? W/System.err﹕ org.json.JSONException: Value true at Status of type java.lang.String cannot be converted to JSONObject
09-18 06:41:02.543  20427-20490/? W/System.err﹕ at org.json.JSON.typeMismatch(JSON.java:100)
09-18 06:41:02.543  20427-20490/? W/System.err﹕ at org.json.JSONObject.getJSONObject(JSONObject.java:613)
09-18 06:41:02.543  20427-20490/? W/System.err﹕ at com.example.tazeen.classnkk.AddPost$7$1.doInBackground(AddPost.java:320)
09-18 06:41:02.543  20427-20490/? W/System.err﹕ at com.example.tazeen.classnkk.AddPost$7$1.doInBackground(AddPost.java:286)
09-18 06:41:02.543  20427-20490/? W/System.err﹕ at android.os.AsyncTask$2.call(AsyncTask.java:288)
09-18 06:41:02.543  20427-20490/? W/System.err﹕ at java.util.concurrent.FutureTask.run(FutureTask.java:237)
09-18 06:41:02.543  20427-20490/? W/System.err﹕ at android.os.AsyncTask$SerialExecutor$1.run(AsyncTask.java:231)
09-18 06:41:02.543  20427-20490/? W/System.err﹕ at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1112)
09-18 06:41:02.543  20427-20490/? W/System.err﹕ at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:587)
09-18 06:41:02.543  20427-20490/? W/System.err﹕ at java.lang.Thread.run(Thread.java:818)

Answer 1

嘗試以下方法：

JSONObject jobj1 = json_Upd_Post_ActivityResult.getJSONObject("Status");
String strStatusObj = jobj1.toString();

狀態不是 JSONObject。 因此，要使用 getJSONObject("Status") ，您必須使用String strStatusObj = json_Upd_Post_ActivityResult.getString("Status") ;

Answer 2

我對您的代碼做了一些更改，請檢查...

嘗試 { JSONObject jsonObj = 新 JSONObject(result); 字符串 jsonResult = jsonObj.toString().trim(); Log.e("jsonResult ", " = " + jsonResult);

                            JSONObject json_Upd_Post_ActivityResult = jsonObj.getJSONObject("Upd_Post_ActivityResult");
                            Log.e("getAllActivity_List ", " = " + json_Upd_Post_ActivityResult.toString());

                            String strStatusObj = json_Upd_Post_ActivityResult.getString("Status");
                            Log.e("strStatusObj "," = " + strStatusObj);
                            if(strStatusObj.equals("true"))
                            {
                                Log.e("StartMark Url Uploaded ", "Succesfully !!!!!");
                                Log.e("Status ", "True");
                                int imagesArray = imgItemArray.size();
                                Log.e("imagesArray "," = "+imagesArray);


                            }
                            else
                            {
                                Log.e("Status ","False");
                            }
                        }
                        catch (JSONException je)
                        {
                            je.printStackTrace();
                        }
                    }

Answer 3

改變這個

JSONObject jobj1 = json_Upd_Post_ActivityResult.getJSONObject("Status");

到

String strStatusObj = json_Upd_Post_ActivityResult.getString("Status");

Answer 4

請使用下面的，讓我知道它是否有效

String str=json_Upd_Post_ActivityResult.getString("Status");