解析本地Json文件时的JsonExeption

Question

我试图使用本地Json文件在google上显示标记。问题是我得到了这个错误。

W/System.err: org.json.JSONException: Value {“预测”：[{“描述”：“游戏Paisley，High，Paisley，UK"，"id":"d4fafbac99296d0a545170bb9af984e6251ac917"，”matched_substrings“：{”长度“：4，”偏移“：0}，"place_id":"ChIJN0z6gTdJiEgREKQBicnWcAs"，"reference":"ChIJN0z6gTdJiEgREKQBicnWcAs"，”structured_formatting“：{”main_text“：”游戏Paisley"，"main_text_matched_substrings":{"length":4，“偏移”：0}，“secondary_text”：“高街，佩斯利，英国”}，“术语”：{“偏移”：0，“价值”：“游戏Paisley"}，{”偏移“：14，”值“：”高街“}，{”偏移“：27，”值“：”Paisley“}，{”偏移“：36，”值“：”UK"}，“类型”：“建立”}}，{“描述”：“游戏格拉斯哥联合街”，联合街，英国格拉斯哥，"id":"9579c1d2df7575a2eb479ccd987cf29ab0ab9c6e"，“matched_substrings”：{“长度”：4，“偏移”：0}，"place_id":"ChIJ2YlAjJ5GiEgRu7aBLOFlkkc"，"reference":"ChIJ2YlAjJ5GiEgRu7aBLOFlkkc"，“structured_formatting”：{“main_text”：“游戏格拉斯哥联合街”，“main_text_matched_substrings”：{“长度”：4，“偏移”：0}，“secondary_text”：“联合街，格拉斯哥，英国”}“术语”：{“偏移”：0，“值”：“游戏格拉斯哥联合街”}，{“偏移”：27，“值”：“联合街”}，{“偏移”：41，“值”：“格拉斯哥”}，{“偏移”：50，“值”：“UK”}，“类型”：“建立”}，{“描述”：“游戏，圣以诺广场，格拉斯哥，英国”，"id":"582edc64f3d6654d8ff9a8da364c37a8e0544102"，“matched_substrings”：{“长度”：4，“偏移”：0}，"place_id":"ChIJq2yljp5GiEgRpsnAfUFKGEA"，“引用”：“ChIJq2yljp5GiEgRpsnAfUFKGEA”，“structured_formatting”：{“main_text”：“游戏”，“main_text_matched_substrings”：{“长度”：4，“偏移”：0}，“secondary_text”：“secondary_text”：“圣伊诺克广场，英国”}，“术语”：{“偏移”：0，“值”：“游戏”}，{“偏移”：6，“价值”：“圣伊诺克广场”}，{“偏移”：26，“值”：“格拉斯哥”}，{“偏移”：35，“值”：“英国”}，“类型”：“建立”}，{“描述”：“描述”：“游戏格拉斯哥国王的英寸路，格拉斯哥国王之路，格拉斯哥，英国，"id":"b60dbbc529f25226dfee4c05c80de8e92137588d"，”matched_substrings：{“长度”：4，“偏移”：0}，"place_id":"ChIJv2Te_ENPiEgRknxQydZhR8Q"，"reference":"ChIJv2Te_ENPiEgRknxQydZhR8Q"，“structured_formatting”：{“main_text”：“游戏格拉斯哥国王的英制路”，“main_text_matched_substrings”：{“长度”：4，“偏移”：0}，“secondary_text”：“国王的英制路，格拉斯哥，英国”}，“术语”：{“偏移”：0，“值”：“游戏格拉斯哥国王的英制路”}{“偏移”：31，“价值”：“国王的英寸路”}，{“偏移”：49，“值”：“格拉斯哥”}，{“偏移”：58，“值”：“UK”}，“类型”：“建立”}，{“描述”：“游戏，柯格林路，格拉斯哥，英国”，"id":"86a4ed10b3b9b609f68533f1c47dc8f9ae5d2aee"，“matched_substrings”：{“长度”：4，偏移:0}，"place_id":"ChIJT3vEiYRIiEgR4EIqP8jmL6o"，“参考”：“ChIJT3vEiYRIiEgR4EIqP8jmL6o”、“structured_formatting”：{“main_text”：“main_text”、“main_text_matched_substrings”：{“长度”：4、“偏移”：0}、"secondary_text":"Cowglen Road，Glasgow“}、”terms“：{”偏移“：0、”value“、{”偏移“：6、”值“：”Cowglen Road"}、{“偏移”：20、“值”：“Glasgow”}，{“偏移”：29，“值”：“UK”}，“类型”：“单位”}]，“org.json.JSONObject”类型的“OK”}不能转换为JSONArray W/System.err: at org.json.JSON.typeMismatch(JSON.java:111) at org.json.JSONArray.(JSONArray.java:96) at org.json.JSONArray.(JSONArray.java:108) at nearbyplaces.pnai at nearbyplaces.pnai.uws.com.maplocation.MapsActivity$AsyncTaskGetMareker.doInBackground(MapsActivity.java:102) android.os.AsyncTask$2.call(AsyncTask.java:304) W/System.err: at java.util.concurrent.FutureTask.run(FutureTask.java:237) at android.os.AsyncTask$SerialExecutor$1.run(AsyncTask.java:243) W/System.err:在java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1133) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:607) at java.lang.Thread.run(Thread.java:762)

这是我的地图活动代码

  @Override
        protected void onCreate(Bundle savedInstanceState) {
            super.onCreate(savedInstanceState);
            setContentView(R.layout.activity_maps);
            // Obtain the SupportMapFragment and get notified when the map is ready to be used.
            SupportMapFragment mapFragment = (SupportMapFragment) getSupportFragmentManager()
                    .findFragmentById(R.id.map);
            mapFragment.getMapAsync(this);

        }
        @Override
        public void onMapReady(GoogleMap googleMap) {
            mMap = googleMap;

            gps = new TrackGPS(MapsActivity.this);
            new AsyncTaskGetMareker().execute();
            /*
            if(gps.canGetLocation()){
                currentLoc= new LatLng(gps.getLatitude(),gps.getLongitude());
                Log.d(TAG, "onMapReady: Got Location: " +gps.getLatitude() + " " + gps.getLongitude());
                // Add a marker in Sydney and move the camera
                mMap.addMarker(new MarkerOptions()
                        .position(currentLoc)
                        .title("CurrentLocation"));
                Log.d(TAG, "onMapReady: Displaying Map");
                mMap.animateCamera(CameraUpdateFactory.newLatLngZoom(currentLoc,15));
            }else{
                gps.showAlert();
            }
            */
        }

        public String getJSONFromAssets() {
            String json = null;
            try {
                InputStream inputData = getAssets().open("gameStores.json");
                int size = inputData.available();
                byte[] buffer = new byte[size];
                inputData.read(buffer);
                inputData.close();
                json = new String(buffer, "UTF-8");
            } catch (IOException ex) {
                ex.printStackTrace();
                return null;
            }
            return json;
        }

        private class AsyncTaskGetMareker extends AsyncTask<String , String, JSONArray> {
            @Override
            protected void onPreExecute() {
                super.onPreExecute();
            }

            @Override
            protected JSONArray doInBackground(String... strings) {
                String stationsJsonString = getJSONFromAssets();
                try {
                    JSONArray stationsJsonArray = new JSONArray(stationsJsonString);
                    return stationsJsonArray;
                } catch (JSONException e) {
                    e.printStackTrace();
                }
                //This will only happen if an exception is thrown above:
                return null;
            }

            protected void onPostExecute (JSONArray result){
                if (result !=null){
                    for (int i =0; i <result.length(); i++){
                        JSONObject jsonObject= null;
                        try {
                            jsonObject= result.getJSONObject(i);
                            String name=jsonObject.getString("name");
                            String lat=jsonObject.getString("lat");
                            String lang=jsonObject.getString("lang");

                            drawMarker(new LatLng(Double.parseDouble(lat),
                                    Double.parseDouble(lang)), name);

                        } catch (JSONException e) {
                            e.printStackTrace();
                        }
                    }
                }

            }

            private void drawMarker(LatLng point, String name) {
                MarkerOptions markerOptions = new MarkerOptions();
                markerOptions.position(point);
                markerOptions.snippet(name);
                mMap.addMarker(markerOptions);
            }
        }

这是我的json文件

 {    "predictions" : [
>       {
>          "description" : "GAME Paisley, High Street, Paisley, UK",
>          "id" : "d4fafbac99296d0a545170bb9af984e6251ac917",
>          "matched_substrings" : [
>             {
>                "length" : 4,
>                "offset" : 0
>             }
>          ],
>          "place_id" : "ChIJN0z6gTdJiEgREKQBicnWcAs",
>          "reference" : "ChIJN0z6gTdJiEgREKQBicnWcAs",
>          "structured_formatting" : {
>             "main_text" : "GAME Paisley",
>             "main_text_matched_substrings" : [
>                {
>                   "length" : 4,
>                   "offset" : 0
>                }
>             ],
>             "secondary_text" : "High Street, Paisley, UK"
>          },
>          "terms" : [
>             {
>                "offset" : 0,
>                "value" : "GAME Paisley"
>             },
>             {
>                "offset" : 14,
>                "value" : "High Street"
>             },
>             {
>                "offset" : 27,
>                "value" : "Paisley"
>             },
>             {
>                "offset" : 36,
>                "value" : "UK"
>             }
>          ],
>          "types" : [ "establishment" ]
>       },
>       {
>          "description" : "GAME Glasgow Union Street, Union Street, Glasgow, UK",
>          "id" : "9579c1d2df7575a2eb479ccd987cf29ab0ab9c6e",
>          "matched_substrings" : [
>             {
>                "length" : 4,
>                "offset" : 0
>             }
>          ],
>          "place_id" : "ChIJ2YlAjJ5GiEgRu7aBLOFlkkc",
>          "reference" : "ChIJ2YlAjJ5GiEgRu7aBLOFlkkc",
>          "structured_formatting" : {
>             "main_text" : "GAME Glasgow Union Street",
>             "main_text_matched_substrings" : [
>                {
>                   "length" : 4,
>                   "offset" : 0
>                }
>             ],
>             "secondary_text" : "Union Street, Glasgow, UK"
>          },
>          "terms" : [
>             {
>                "offset" : 0,
>                "value" : "GAME Glasgow Union Street"
>             },
>             {
>                "offset" : 27,
>                "value" : "Union Street"
>             },
>             {
>                "offset" : 41,
>                "value" : "Glasgow"
>             },
>             {
>                "offset" : 50,
>                "value" : "UK"
>             }
>          ],
>          "types" : [ "establishment" ]
>       },
>       {
>          "description" : "Game, Saint Enoch Square, Glasgow, UK",
>          "id" : "582edc64f3d6654d8ff9a8da364c37a8e0544102",
>          "matched_substrings" : [
>             {
>                "length" : 4,
>                "offset" : 0
>             }
>          ],
>          "place_id" : "ChIJq2yljp5GiEgRpsnAfUFKGEA",
>          "reference" : "ChIJq2yljp5GiEgRpsnAfUFKGEA",
>          "structured_formatting" : {
>             "main_text" : "Game",
>             "main_text_matched_substrings" : [
>                {
>                   "length" : 4,
>                   "offset" : 0
>                }
>             ],
>             "secondary_text" : "Saint Enoch Square, Glasgow, UK"
>          },
>          "terms" : [
>             {
>                "offset" : 0,
>                "value" : "Game"
>             },
>             {
>                "offset" : 6,
>                "value" : "Saint Enoch Square"
>             },
>             {
>                "offset" : 26,
>                "value" : "Glasgow"
>             },
>             {
>                "offset" : 35,
>                "value" : "UK"
>             }
>          ],
>          "types" : [ "establishment" ]
>       },
>       {
>          "description" : "GAME Glasgow King's Inch Road, King's Inch Road, Glasgow, UK",
>          "id" : "b60dbbc529f25226dfee4c05c80de8e92137588d",
>          "matched_substrings" : [
>             {
>                "length" : 4,
>                "offset" : 0
>             }
>          ],
>          "place_id" : "ChIJv2Te_ENPiEgRknxQydZhR8Q",
>          "reference" : "ChIJv2Te_ENPiEgRknxQydZhR8Q",
>          "structured_formatting" : {
>             "main_text" : "GAME Glasgow King's Inch Road",
>             "main_text_matched_substrings" : [
>                {
>                   "length" : 4,
>                   "offset" : 0
>                }
>             ],
>             "secondary_text" : "King's Inch Road, Glasgow, UK"
>          },
>          "terms" : [
>             {
>                "offset" : 0,
>                "value" : "GAME Glasgow King's Inch Road"
>             },
>             {
>                "offset" : 31,
>                "value" : "King's Inch Road"
>             },
>             {
>                "offset" : 49,
>                "value" : "Glasgow"
>             },
>             {
>                "offset" : 58,
>                "value" : "UK"
>             }
>          ],
>          "types" : [ "establishment" ]
>       },
>       {
>          "description" : "GAME, Cowglen Road, Glasgow, UK",
>          "id" : "86a4ed10b3b9b609f68533f1c47dc8f9ae5d2aee",
>          "matched_substrings" : [
>             {
>                "length" : 4,
>                "offset" : 0
>             }
>          ],
>          "place_id" : "ChIJT3vEiYRIiEgR4EIqP8jmL6o",
>          "reference" : "ChIJT3vEiYRIiEgR4EIqP8jmL6o",
>          "structured_formatting" : {
>             "main_text" : "GAME",
>             "main_text_matched_substrings" : [
>                {
>                   "length" : 4,
>                   "offset" : 0
>                }
>             ],
>             "secondary_text" : "Cowglen Road, Glasgow, UK"
>          },
>          "terms" : [
>             {
>                "offset" : 0,
>                "value" : "GAME"
>             },
>             {
>                "offset" : 6,
>                "value" : "Cowglen Road"
>             },
>             {
>                "offset" : 20,
>                "value" : "Glasgow"
>             },
>             {
>                "offset" : 29,
>                "value" : "UK"
>             }
>          ],
>          "types" : [ "establishment" ]
>       }    ],    "status" : "OK" }

Answer 1

org.json.JSONObject不能转换为JSONArray

根节点是一个JSONObject，但是您正在使用JSONArray解析它。

替换

JSONArray stationsJsonArray = new JSONArray(stationsJsonString);

使用

JSONObject stationsJsonObject = new JSONObject(stationsJsonString);