アンドロイドの2つのキーと値を持つJson ArrayとJsonオブジェクトを解析する方法は？

Question

SQLデータベースからウォレット・アレイから私のスピナーを取り込み、ウォレット名ではなく特定のユーザーの詳細でユーザーが選択しているウォレットIDを保管したいとします。私はこの特定のコードを書いており、エラーのスクリーンショットも追加しています。

アンドロイド私はあなたのwalletObjectこの含まれているため、あなたのJSONは、間違っている

06-29 12:53:08.015 28974-28988/com.example.tanmayjain.twowaycommunication D/String: {"user":[{"status_code":"1","status_desc":"Success","user_id":"482","id":"26","name":"tanmay ","pass":"a006b22f887f7d922bafa4c8186ccafd","location":"Ahmedabad","cards":"ICICI Bank","category":"Platinum","wallet":"","operator":"Vodafone","loyaltyProgram":"Any","membership":"All Time","wallet_array":"{\"wallets\":[{\"1\":[\"Paytm\"],\"2\":[\"Freecharge\"],\"3\":[\"Mobikwik\"],\"4\":[\"PayUmoney\"],\"5\":[\"CitrusCash\"],\"6\":[\"Airtel Money\"],\"7\":[\"Oxigen Wallet\"],\"8\":[\"OLAMoney\"],\"9\":[\"HDFC PayZapp\"],\"10\":[\"Chillr by HDFC\"],\"11\":[\"Pockets by ICICI bank\"],\"12\":[\"JioMoney\"],\"13\":[\"SBI Buddy\"],\"14\":[\"mRupee\"],\"15\":[\"Itzcash\"]}]}"}]} 
06-29 12:53:08.015 28974-28988/com.example.tanmayjain.twowaycommunication D/Arraysize: [{"1":["Paytm"],"2":["Freecharge"],"3":["Mobikwik"],"4":["PayUmoney"],"5":["CitrusCash"],"6":["Airtel Money"],"7":["Oxigen Wallet"],"8":["OLAMoney"],"9":["HDFC PayZapp"],"10":["Chillr by HDFC"],"11":["Pockets by ICICI bank"],"12":["JioMoney"],"13":["SBI Buddy"],"14":["mRupee"],"15":["Itzcash"]}] 
06-29 12:53:08.016 28974-28988/com.example.tanmayjain.twowaycommunication W/System.err: org.json.JSONException: No value for id 
06-29 12:53:08.016 28974-28988/com.example.tanmayjain.twowaycommunication W/System.err:  at org.json.JSONObject.get(JSONObject.java:389) 
06-29 12:53:08.016 28974-28988/com.example.tanmayjain.twowaycommunication W/System.err:  at org.json.JSONObject.getInt(JSONObject.java:478) 
06-29 12:53:08.016 28974-28988/com.example.tanmayjain.twowaycommunication W/System.err:  at com.example.tanmayjain.twowaycommunication.User$BackgroundTask.doInBackground(User.java:167) 
06-29 12:53:08.017 28974-28988/com.example.tanmayjain.twowaycommunication W/System.err:  at com.example.tanmayjain.twowaycommunication.User$BackgroundTask.doInBackground(User.java:85) 
06-29 12:53:08.017 28974-28988/com.example.tanmayjain.twowaycommunication W/System.err:  at android.os.AsyncTask$2.call(AsyncTask.java:295) 

I want to fetch id and wallet name from the array displayed in array size but i am getting this error.

Answer 1

を取得していますパート

public class User extends AppCompatActivity { 

ArrayAdapter<String> adapter; 
ArrayList<Populate> listItems; 
LinkedHashMap<String,String> walletId; 
Button logout,editdetails; 
SharedPreferences sp; 
SharedPreferences.Editor editor; 
public static final String DEFAULT = "N/A"; 
TextView usermail; 
String email; 
int id; 
public static final int DEFAULTI = 0; 
@Override 
protected void onCreate(Bundle savedInstanceState) { 
    super.onCreate(savedInstanceState); 
    setContentView(R.layout.activity_user); 



    listItems = new ArrayList<>(); 

    usermail = (TextView) findViewById(R.id.usermail); 
    editdetails = (Button) findViewById(R.id.editdetails); 
    logout = (Button) findViewById(R.id.logout); 

    sp = getSharedPreferences("Login", Context.MODE_PRIVATE); 
    email = sp.getString("email", DEFAULT); 
    usermail.setText("Welcome " + email); 
    id = sp.getInt("id",DEFAULTI); 

    logout.setOnClickListener(new View.OnClickListener() { 
     @Override 
     public void onClick(View v) { 
      /** pref = getSharedPreferences("Login", Context.MODE_PRIVATE); 
      editor = pref.edit(); 
      editor.putBoolean("loginfirst",false); 
      editor.commit();**/ 
      Intent i = new Intent(User.this, Login.class); 
      startActivity(i); 
      finish(); 
     } 
    }); 
} 
public void onEdit(View v){ 
    BackgroundTask backgroundTask = new BackgroundTask(); 
    backgroundTask.execute(String.valueOf(id)); 

} 

class BackgroundTask extends AsyncTask<String, Void, String> { 

    ArrayList<Populate> list; 
    String add_info_url; 

    @Override 
    protected void onPreExecute() { 
     list=new ArrayList<>(); 
     add_info_url = "http://192.168.2.6/Deal%20Engine/editdetails.php"; 

    } 

    @Override 
    protected void onPostExecute(String result) { 
     listItems.addAll(list); 


     Toast.makeText(getApplicationContext(), result, Toast.LENGTH_SHORT).show(); 
     //SharedPreferences sp = getSharedPreferences("Login",Context.MODE_PRIVATE); 


     Intent i = new Intent(User.this, EditDetails.class); 
     startActivity(i); 


    } 

    @Override 
    protected String doInBackground(String... args) { 


     BufferedReader reader = null; 
     try { 
      URL url = new URL(add_info_url); 
      HttpURLConnection httpURLConnection = (HttpURLConnection) url.openConnection(); 
      httpURLConnection.setRequestMethod("POST"); 
      httpURLConnection.setDoOutput(true); 
      OutputStream outputStream = httpURLConnection.getOutputStream(); 
      BufferedWriter bufferedWriter = new BufferedWriter(new OutputStreamWriter(outputStream, "UTF-8")); 
      String dataString = URLEncoder.encode("id", "UTF-8") + "=" + URLEncoder.encode(String.valueOf(id), "UTF-8"); 

      Log.d("id", String.valueOf(id)); 
      bufferedWriter.write(dataString); 
      Log.d("Result", dataString); 
      bufferedWriter.flush(); 
      bufferedWriter.close(); 
      outputStream.close(); 
      InputStream inputStream = httpURLConnection.getInputStream(); 

      reader = new BufferedReader(new InputStreamReader(inputStream)); 
      StringBuffer buffer = new StringBuffer(); 
      String line = ""; 
      while ((line = reader.readLine()) != null) { 
       buffer.append(line); 
      } 
      String finalJson = buffer.toString(); 
      Log.d("String", finalJson); 

      JSONObject parentObject = new JSONObject(finalJson); 
      JSONArray parentArray = parentObject.getJSONArray("user"); 
      StringBuffer finalBufferedData = new StringBuffer(); 
      for (int i = 0; i < parentArray.length(); i++) { 
       JSONObject finalObject = parentArray.getJSONObject(i); 
       int status_code = finalObject.getInt("status_code"); 
       String status_desc = finalObject.getString("status_desc"); 
       String user_id = finalObject.getString("user_id"); 
       int id = finalObject.getInt("id"); 
       String name=finalObject.getString("name"); 
       String pass= finalObject.getString("pass"); 
       String location = finalObject.getString("location"); 
       String cards=finalObject.getString("cards"); 
       String category= finalObject.getString("category"); 
       String wallet = finalObject.getString("wallet"); 
       String operator=finalObject.getString("operator"); 
       String loyaltyProgram= finalObject.getString("loyaltyProgram"); 
       String membership= finalObject.getString("membership"); 
       JSONObject walletArrayObject = new JSONObject(finalObject.getString("wallet_array")); 
       JSONArray walletArray = walletArrayObject.getJSONArray("wallets"); 
       Log.d("Arraysize",String.valueOf(walletArray)); 
       for(int j =0;j<walletArray.length();j++) 
       { 
        JSONObject walletObject = walletArray.getJSONObject(j); 
        list.add(new Populate(String.valueOf(walletObject.getInt("id")),walletObject.getString("wallet_name"))); 
       } 
       sp = getSharedPreferences("Login",Context.MODE_PRIVATE); 
       editor=sp.edit(); 
       editor.putString("name",name); 
       editor.putString("pass",pass); 
       editor.putInt("id",id); 
       editor.putString("location",location); 
       editor.putString("cards",cards); 
       editor.putString("category",category); 
       editor.putString("wallet",wallet); 
       editor.putString("operator",operator); 
       editor.putString("wallets",String.valueOf(list)); 
       editor.putString("loyaltyProgram",loyaltyProgram); 
       editor.putString("membership",membership); 
       editor.commit(); 
       finalBufferedData.append(status_code + " - " + status_desc + " -" + user_id + " -"+id + " -"+name+ " -"+list +"\n"); 
      } 


      inputStream.close(); 
      httpURLConnection.disconnect(); 
      Log.d("Result", dataString); 
      return finalBufferedData.toString(); 
     } catch (MalformedURLException e) { 
      e.printStackTrace(); 
     } catch (IOException e) { 
      e.printStackTrace(); 
     } catch (JSONException e) { 
      e.printStackTrace(); 
     } 
     return null; 
    } 

    @Override 
    protected void onProgressUpdate(Void... values) { 
     super.onProgressUpdate(values); 
    } 


} 


} 

エラー：

を

{ 
"wallets": [{ 
    "1": ["Paytm"], 
    "2": ["Freecharge"], 
    "3": ["Mobikwik"], 
    "4": ["PayUmoney"], 
    "5": ["CitrusCash"], 
    "6": ["Airtel Money"], 
    "7": ["Oxigen Wallet"], 
    "8": ["OLAMoney"], 
    "9": ["HDFC PayZapp"], 
    "10": ["Chillr by HDFC"], 
    "11": ["Pockets by ICICI bank"], 
    "12": ["JioMoney"], 
    "13": ["SBI Buddy"], 
    "14": ["mRupee"], 
    "15": ["Itzcash"] 
}] 
} 

idプロパティの値を取得したいが、jsonにidフィールドが含まれていないため、エラーが表示されます。配列の代わりにオブジェクトを送信 1.私はあなたがこのJSON構造を使用すべきだと思う（wallet_array） 2.変更お財布のオブジェクト構造

：

{ "user": [{ "status_code": "1", "status_desc": "Success", "user_id": "482", "id": "26", "name": "tanmay ", "pass": "a006b22f887f7d922bafa4c8186ccafd", "location": "Ahmedabad", "cards": "ICICI Bank", "category": "Platinum", "wallet": "", "operator": "Vodafone", "loyaltyProgram": "Any", "membership": "All Time", "wallet_array": [{ "id": 1, "name": "Paytm" }, { "id": 2, "name": "Freecharge" }, { "id": 3, "name": "Mobikwik" }, { "id": 4, "name": "PayUmoney" }, { "id": 5, "name": "CitrusCash" }, { "id": 6, "name": "Airtel Money" }, { "id": 7, "name": "Oxigen Wallet" }, { "id": 8, "name": "OLAMoney" }, { "id": 9, "name": "HDFC PayZapp" } ] }] }

を

あなたのJSONは多くの問題を抱えています