JSON解析異常org.json.JSONException：用於CONTENTS

異常而解析JSONJSON解析異常org.json.JSONException：用於CONTENTS

{ 
    "LIVE": { 
     "CONTENTS": [ 
    { 
        "UID":"488b93abb60", 
        "NAME":"career will be in 2013", 
        "SHORTDSEC":"How Salman Shahrukhs career will be in 2013 Deepika Ranbir wish fans a Happy New Year more", 
        "SYNOPSIS":"", 
        "TITLE":"How Salman Shahrukhs career will be in 2013", 
        "SMALLIMAGE":"in_Traffic_PoliceBKBKM61.jpg", 
        "BIGIMAGE":"in_Traffic_PoliceBKBKM154.jpg", 
        "URL2G":"h_fans_a_Happy_New_Year_more.3gp", 
        "URL3G":"sh_fans_a_Happy_New_Year_more_3g.mp4" 
       }, 
    { 
        "UID":"5b72b81cc632", 
        "NAME":"Is Mumbai police biased towards Salman", 
        "SHORTDSEC":"Is Mumbai police biased towards Salman Top 10 Bollywood controversies of 2012 more news", 
        "SYNOPSIS":"", 
        "TITLE":"Is Mumbai police biased towards Salman", 
        "SMALLIMAGE":"_police_biased_towards_Salman61.jpg", 
        "BIGIMAGE":"i_police_biased_towards_Salman154.jpg", 
        "URL2G":"10_Bollywood_controversies_of_2012_more_news.3gp", 
        "URL3G":"_Bollywood_controversies_of_2012_more_news_3g.mp4" 
       }, 
       { 
        "UID":"5488b93abb60", 
        "NAME":"How Salman Shahrukhs career will be in 2013", 
        "SHORTDSEC":"How Salman Shahrukhs career will be in 2013 Deepika Ranbir wish fans a Happy New Year more", 
        "SYNOPSIS":"", 
        "TITLE":"How Salman Shahrukhs career will be in 2013", 
        "SMALLIMAGE":"be_in_Traffic_PoliceBKBKM61.jpg", 
        "BIGIMAGE":"raffic_PoliceBKBKM154.jpg", 
        "URL2G":"ans_a_Happy_New_Year_more.3gp", 
        "URL3G":"r_wish_fans_a_Happy_New_Year_more_3g.mp4" 
       }, 

      ] 
     } 
    }

源代碼

public class GetData extends AsyncTask<String, Void, String> { 
     private ProgressDialog progress = null; 

     @Override 
     protected String doInBackground(String... params) { 
      return getJSONString(params[0]); 

     } 

     private String getJSONString(String url) { 
      String jsonString = null; 
      HttpURLConnection linkConnection = null; 
      try { 
       URL linkurl = new URL(url); 
       linkConnection = (HttpURLConnection) linkurl.openConnection(); 
       int responseCode = linkConnection.getResponseCode(); 
       if (responseCode == HttpURLConnection.HTTP_OK) { 
        InputStream linkinStream = linkConnection.getInputStream(); 
        ByteArrayOutputStream baos = new ByteArrayOutputStream(); 
        int j = 0; 
        while ((j = linkinStream.read()) != -1) { 
         baos.write(j); 
        } 
        byte[] data = baos.toByteArray(); 
        jsonString = new String(data); 
       } 
      } catch (Exception e) { 
       e.printStackTrace(); 
      } finally { 
       if (linkConnection != null) { 
        linkConnection.disconnect(); 
       } 
      } 
      return jsonString; 
     } 

     @Override 
     protected void onPreExecute() { 
      super.onPreExecute(); 
      progress = ProgressDialog.show(MainActivity.this, "", "Loading..."); 
     } 

     @Override 
     protected void onPostExecute(String result) { 
      super.onPostExecute(result); 
      if (null != progress && progress.isShowing()) { 
       progress.dismiss(); 
      } 
      if (null == result || result.length() == 0) { 
       Toast.makeText(MainActivity.this, "No data found from web!!!", 
         Toast.LENGTH_SHORT).show(); 
       MainActivity.this.finish(); 
      } else { 
       try { 
       JSONObject mainJson = new JSONObject(result); 
       JSONObject jsonObject = mainJson.getJSONObject(OBJECT_NAME); 
       JSONArray jsonArray = jsonObject.getJSONArray(ARRAY_NAME); 
       for (int i = 0; i < jsonArray.length(); i++) { 
        JSONObject objJson = jsonArray.getJSONObject(i); 
        Log.d("UID=", objJson.getString(UID)); 
        Log.d("NAME=", objJson.getString(NAME)); 
        Log.d("SHORTDESC=", objJson.getString(SHORTDSEC)); 
        Log.d("TITLE=", objJson.getString(TITLE)); 
        Log.d("SMALLIMAGE=", objJson.getString(SMALLIMAGE)); 
        Log.d("BIGIMAGE=", objJson.getString("BIGIMAGE")); 
        Log.d("URL2G=", objJson.getString(URL2G)); 
        Log.d("URL3G=", objJson.getString(URL3G)); 
       } 
      } catch (Exception e) { 
       e.printStackTrace(); 
      } 
      } 
     } 
    }

異常No值，logcat的

org.json.JSONException: Value at 8 is null. 
W/System.err( 833): at org.json.JSONArray.get(JSONArray.java:259) 
W/System.err( 833): at org.json.JSONArray.getJSONObject(JSONArray.java:480) 
W/System.err( 833): at com.example.chhotatv.MainActivity$GetData.onPostExecute(MainActivity.java:99) 
W/System.err( 833): at com.example.chhotatv.MainActivity$GetData.onPostExecute(MainActivity.java:1) 
W/System.err( 833): at android.os.AsyncTask.finish(AsyncTask.java:417) 
W/System.err( 833): at android.os.AsyncTask.access$300(AsyncTask.java:127) 
W/System.err( 833): at android.os.AsyncTask$InternalHandler.handleMessage(AsyncTask.java:429) 
W/System.err( 833): at android.os.Handler.dispatchMessage(Handler.java:99) 
W/System.err( 833): at android.os.Looper.loop(Looper.java:123) 
W/System.err( 833): at android.app.ActivityThread.main(ActivityThread.java:4627) 
W/System.err( 833): at java.lang.reflect.Method.invokeNative(Native Method) 
W/System.err( 833): at java.lang.reflect.Method.invoke(Method.java:521) 
W/System.err( 833): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:868) 
W/System.err( 833): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:626) 
W/System.err( 833): at dalvik.system.NativeStart.main(Native Method)

來源

2013-06-25 Dilip

CONTENTS是JSONArray內部LIVEJSONObject而不是你一個字符串重新嘗試使用getString("CONTENTS");。得到JSONArray從主要的JSONObject：

JSONObject mainJson = new JSONObject(result); 
// get LIVE JSONObject 
JSONObject json_live= mainJson.getJSONObject("LIVE"); 
// get CONTENTS JSONArray from json_live 
JSONArray json_contents= json_live.getJSONArray("CONTENTS");

來源

2013-06-25 08:45:31

感謝它幫我 – Dilip

現在我得到另一個錯誤W/System.err的（833）：org.json.JSONException：在8值爲NULL。 – Dilip

@Dipu：確定PLZ顯示最新的代碼和日誌來獲得新的問題 –

爲什麼採取 //獲取實時的JSONObject 的JSONObject json_live = mainJson.getJSONObject（「LIVE」）;/*沒必要*/

您可以直接訪問

的JSONObject mainJson =新的JSONObject（結果）;

//從json_live

獲取內容JSONArray

JSONArray json_contents = mainJson.getJSONArray（「內容」）;

來源

2014-01-12 18:24:05

JSON解析異常org.json.JSONException：用於CONTENTS

回答

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