JSON解析動態JSON對象名稱？

我知道JSON解析，但在我當前的項目中，我得到了不同類型的JSON格式，其中所有對象的名稱都是動態的，並且它們可能會發生更改。JSON解析動態JSON對象名稱？

{ 
    "category_id": "1", 
    "parent_id": "0", 
    "name": "Root Catalog", 
    "is_active": null, 
    "position": "0", 
    "level": "0", 
    "children": { 
     "0": { 
      "category_id": "2", 
      "parent_id": "1", 
      "name": "Default Category", 
      "is_active": "1", 
      "position": "1", 
      "level": "1", 
      "children": { 
       "0": { 
        "category_id": "32", 
        "parent_id": "2", 
        "name": "Services", 
        "is_active": "1", 
        "position": "1", 
        "level": "2", 
        "children": { 
         "0": { 
          "category_id": "20", 
          "parent_id": "32", 
          "name": "Makeup", 
          "is_active": "1", 
          "position": "1", 
          "level": "3", 
          "children": { 
           "0": { 
            "category_id": "22", 
            "parent_id": "20", 
            "name": "Bridal Makeup", 
            "is_active": "1", 
            "position": "1", 
            "level": "4", 
            "children": { 

            } 
           }, 
           "1": { 
            "category_id": "23", 
            "parent_id": "20", 
            "name": "General Makeup", 
            "is_active": "1", 
            "position": "2", 
            "level": "4", 
            "children": { 

            } 
           } 
          } 
         }, 
         "1": { 
          "category_id": "21", 
          "parent_id": "32", 
          "name": "Skin Services", 
          "is_active": "1", 
          "position": "2", 
          "level": "3", 
          "children": { 
           "0": { 
            "category_id": "24", 
            "parent_id": "21", 
            "name": "Bleach", 
            "is_active": "1", 
            "position": "1", 
            "level": "4", 
            "children": { 

            } 
           }, 
           "1": { 
            "category_id": "25", 
            "parent_id": "21", 
            "name": "Cleanup", 
            "is_active": "1", 
            "position": "2", 
            "level": "4", 
            "children": { 

            } 
           }, 
           "2": { 
            "category_id": "26", 
            "parent_id": "21", 
            "name": "General Facials", 
            "is_active": "1", 
            "position": "3", 
            "level": "4", 
            "children": { 

            } 
           }, 
           "3": { 
            "category_id": "27", 
            "parent_id": "21", 
            "name": "Masks", 
            "is_active": "1", 
            "position": "4", 
            "level": "4", 
            "children": { 

            } 
           }, 
           "4": { 
            "category_id": "28", 
            "parent_id": "21", 
            "name": "Special Facials", 
            "is_active": "1", 
            "position": "5", 
            "level": "4", 
            "children": { 

            } 
           }, 
           "5": { 
            "category_id": "29", 
            "parent_id": "21", 
            "name": "Threading", 
            "is_active": "1", 
            "position": "6", 
            "level": "4", 
            "children": { 

            } 
           }, 
           "6": { 
            "category_id": "30", 
            "parent_id": "21", 
            "name": "Waxing", 
            "is_active": "1", 
            "position": "7", 
            "level": "4", 
            "children": { 

            } 
           }, 
           "7": { 
            "category_id": "38", 
            "parent_id": "21", 
            "name": "Special Services", 
            "is_active": "1", 
            "position": "8", 
            "level": "4", 
            "children": { 

            } 
           }, 
           "8": { 
            "category_id": "40", 
            "parent_id": "21", 
            "name": "Lip Care", 
            "is_active": "1", 
            "position": "9", 
            "level": "4", 
            "children": { 

            } 
           }, 
           "9": { 
            "category_id": "41", 
            "parent_id": "21", 
            "name": "Eye Care", 
            "is_active": "1", 
            "position": "10", 
            "level": "4", 
            "children": { 

            } 
           } 
          } 
         }, 
         "2": { 
          "category_id": "3", 
          "parent_id": "32", 
          "name": "Body Services", 
          "is_active": "1", 
          "position": "3", 
          "level": "3", 
          "children": { 
           "0": { 
            "category_id": "4", 
            "parent_id": "3", 
            "name": "Body Wraps", 
            "is_active": "1", 
            "position": "1", 
            "level": "4", 
            "children": { 

            } 
           }, 
           "1": { 
            "category_id": "5", 
            "parent_id": "3", 
            "name": "Reflexology", 
            "is_active": "1", 
            "position": "2", 
            "level": "4", 
            "children": { 

            } 
           }, 
           "2": { 
            "category_id": "6", 
            "parent_id": "3", 
            "name": "Special Body Services", 
            "is_active": "1", 
            "position": "3", 
            "level": "4", 
            "children": { 

            } 
           } 
          } 
         }, 
         "3": { 
          "category_id": "7", 
          "parent_id": "32", 
          "name": "Hair Services", 
          "is_active": "1", 
          "position": "4", 
          "level": "3", 
          "children": { 
           "0": { 
            "category_id": "8", 
            "parent_id": "7", 
            "name": "Chemical Treatments", 
            "is_active": "0", 
            "position": "1", 
            "level": "4", 
            "children": { 

            } 
           }, 
           "1": { 
            "category_id": "42", 
            "parent_id": "7", 
            "name": "Hair Extensions", 
            "is_active": "1", 
            "position": "2", 
            "level": "4", 
            "children": { 

            } 
           }, 
           "2": { 
            "category_id": "9", 
            "parent_id": "7", 
            "name": "Hair Color", 
            "is_active": "1", 
            "position": "3", 
            "level": "4", 
            "children": { 

            } 
           }, 
           "3": { 
            "category_id": "10", 
            "parent_id": "7", 
            "name": "Haircut", 
            "is_active": "1", 
            "position": "4", 
            "level": "4", 
            "children": { 

            } 
           }, 
           "4": { 
            "category_id": "11", 
            "parent_id": "7", 
            "name": "Hair Straightening", 
            "is_active": "1", 
            "position": "5", 
            "level": "4", 
            "children": { 

            } 
           }, 
           "5": { 
            "category_id": "12", 
            "parent_id": "7", 
            "name": "Hair Styling", 
            "is_active": "1", 
            "position": "6", 
            "level": "4", 
            "children": { 

            } 
           }, 
           "6": { 
            "category_id": "13", 
            "parent_id": "7", 
            "name": "Hair Treatments", 
            "is_active": "1", 
            "position": "7", 
            "level": "4", 
            "children": { 

            } 
           }, 
           "7": { 
            "category_id": "14", 
            "parent_id": "7", 
            "name": "Other Hair Services", 
            "is_active": "1", 
            "position": "8", 
            "level": "4", 
            "children": { 

            } 
           }, 
           "8": { 
            "category_id": "15", 
            "parent_id": "7", 
            "name": "Special Hair Services", 
            "is_active": "1", 
            "position": "9", 
            "level": "4", 
            "children": { 

            } 
           } 
          } 
         }, 
         "4": { 
          "category_id": "16", 
          "parent_id": "32", 
          "name": "Hands And Feet", 
          "is_active": "1", 
          "position": "5", 
          "level": "3", 
          "children": { 
           "0": { 
            "category_id": "17", 
            "parent_id": "16", 
            "name": "Manicure", 
            "is_active": "1", 
            "position": "1", 
            "level": "4", 
            "children": { 

            } 
           }, 
           "1": { 
            "category_id": "18", 
            "parent_id": "16", 
            "name": "Nail Art", 
            "is_active": "1", 
            "position": "2", 
            "level": "4", 
            "children": { 

            } 
           }, 
           "2": { 
            "category_id": "19", 
            "parent_id": "16", 
            "name": "Pedicure", 
            "is_active": "1", 
            "position": "3", 
            "level": "4", 
            "children": { 

            } 
           } 
          } 
         } 
        } 
       }, 
       "1": { 
        "category_id": "33", 
        "parent_id": "2", 
        "name": "Memberships", 
        "is_active": "1", 
        "position": "2", 
        "level": "2", 
        "children": { 

        } 
       }, 
       "2": { 
        "category_id": "34", 
        "parent_id": "2", 
        "name": "Packages", 
        "is_active": "1", 
        "position": "3", 
        "level": "2", 
        "children": { 

        } 
       }, 
       "3": { 
        "category_id": "35", 
        "parent_id": "2", 
        "name": "Offers", 
        "is_active": "1", 
        "position": "4", 
        "level": "2", 
        "children": { 

        } 
       }, 
       "4": { 
        "category_id": "36", 
        "parent_id": "2", 
        "name": "Customer Reviews", 
        "is_active": "1", 
        "position": "5", 
        "level": "2", 
        "children": { 

        } 
       }, 
       "5": { 
        "category_id": "37", 
        "parent_id": "2", 
        "name": "Gallery", 
        "is_active": "1", 
        "position": "6", 
        "level": "2", 
        "children": { 

        } 
       }, 
       "6": { 
        "category_id": "31", 
        "parent_id": "2", 
        "name": "Contact us", 
        "is_active": "1", 
        "position": "7", 
        "level": "2", 
        "children": { 

        } 
       } 
      } 
     } 
    } 
}

所以在doInBackground()，我做如下： -

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

    ServiceHandler serviceHandler = new ServiceHandler(); 
    String jsonStr = serviceHandler.makeServiceCall(
      Constants.SIDE_DRAWER_SERVICES, ServiceHandler.GET); 
    try { 
     JSONObject jobj = new JSONObject(jsonStr); 
     Log.d("", "" + jsonStr.toString()); 
    } catch (JSONException e) { 
     // TODO Auto-generated catch block 
     e.printStackTrace(); 
    } 
    return jsonStr; 
}

在字符串「jsonStr」

我得到響應完整的數據，但是當它轉換成JSONObject的像「的JSONObject jobj =新JSONObject的（jsonStr）;」我越來越喜歡這個數據的丟失： -

{ 
    "position": "0", 
    "children": { 
     "0": { 
      "position": "1", 
      "children": { 
       "3": { 
        "position": "4", 
        "children": { 

        }, 
        "category_id": "35", 
        "level": "2", 
        "is_active": "1", 
        "name": "Offers", 
        "parent_id": "2" 
       }, 
       "2": { 
        "position": "3", 
        "children": { 

        }, 
        "category_id": "34", 
        "level": "2", 
        "is_active": "1", 
        "name": "Packages", 
        "parent_id": "2" 
       }, 
       "1": { 
        "position": "2", 
        "children": { 

        }, 
        "category_id": "33", 
        "level": "2", 
        "is_active": "1", 
        "name": "Memberships", 
        "parent_id": "2" 
       }, 
       "0": { 
        "position": "1", 
        "children": { 
         "3": { 
          "position": "4", 
          "children": { 
           "3": { 
            "position": "4", 
            "children": { 

            }, 
            "category_id": "10", 
            "level": "4", 
            "is_active": "1", 
            "name": "Haircut", 
            "parent_id": "7" 
           }, 
           "2": { 
            "position": "3", 
            "children": { 

            }, 
            "category_id": "9", 
            "level": "4", 
            "is_active": "1", 
            "name": "Hair Color", 
            "parent_id": "7" 
           }, 
           "1": { 
            "position": "2", 
            "children": { 

            }, 
            "category_id": "42", 
            "level": "4", 
            "is_active": "1", 
            "name": "Hair Extensions", 
            "parent_id": "7" 
           }, 
           "0": { 
            "position": "1", 
            "children": { 

            }, 
            "category_id": "8", 
            "level": "4", 
            "is_active": "0", 
            "name": "Chemical Treatments", 
            "parent_id": "7" 
           }, 
           "7": { 
            "position": "8", 
            "children": { 

            }, 
            "category_id": "14", 
            "level": "4", 
            "is_active": "1", 
            "name": "Other Hair Services", 
            "parent_id": "7" 
           }, 
           "6": { 
            "position": "7", 
            "children": { 

            }, 
            "category_id": "13", 
            "level": "4", 
            "is_active": "1", 
            "name": "Hair Treatments", 
            "parent_id": "7" 
           }, 
           "5": { 
            "position": "6", 
            "children": { 

            }, 
            "category_id": "12", 
            "level": "4", 
            "is_active": "1", 
            "name": "Hair Styling", 
            "parent_id": "7" 
           }, 
           "4": { 
            "position": "5", 
            "children": { 

            }, 
            "category_id": "11", 
            "level": "4", 
            "is_active": "1", 
            "name": "Hair Straightening", 
            "parent_id": "7" 
           }, 
           "8": { 
            "position": "9", 
            "children": { 

            }, 
            "category_id": "15", 
            "level": "4", 
            "is_active": "1", 
            "name": "Special Hair Services", 
            "parent_id": "7" 
           } 
          }, 
          "category_id": "7", 
          "level": "3", 
          "is_active": "1", 
          "name": "Hair Services", 
          "parent_id": "32" 
         }, 
         "2": { 
          "position": "3", 
          "children": { 
           "2": { 
            "position": "3", 
            "children": { 

            }, 
            "category_id": "6", 
            "level": "4", 
            "is_active": "1", 
            "name": "Special Body Services", 
            "parent_id": "3" 
           }, 
           "1": { 
            "position": "2", 
            "children": { 

            },

我不知道什麼是我的JSON發生。請幫助我，告訴我JSON是否無效。

來源

2014-12-09 Sanket

我認爲你的json響應是正確的，並且在將它改爲json對象之後重新排序。由於json對象的自然是無序的。 – 2014-12-09 12:00:16

那麼我缺少的數據呢，我怎麼解析它們呢？ – Sanket 2014-12-09 12:00:59

您如何知道數據丟失？如果您使用logcat打印數據，則只打印一些行。 – 2014-12-09 12:05:10

最後得到了解決，在調試的時候，字符串顯示所有數據不要緊多少，但在JSONObject的所有數據都可用，但它不顯示，而debugging.When檢索來自JSONObject的數據我得到了所有不在調試器中顯示的字段。

來源

2014-12-20 07:14:44 Sanket

你的logcat只顯示一些數據行，所以用這個函數打印數據。

稱它爲由longInfo(your_big_string);

public static void longInfo(String str) { 
    if(str.length() > 4000) { 
     Log.i(TAG, str.substring(0, 4000)); 
     longInfo(str.substring(4000)); 
    } else 
     Log.i(TAG, str); 
}

來源

2014-12-09 12:13:17

其實當我在做調試的時候，我仍然沒有收到缺少的JSON數據。主要問題是這個。所以我很困惑，我的數據丟失在哪裏。請幫幫我。 – Sanket 2014-12-09 12:16:16

在browswer中試試你的url，是否給出了所有的數據。 – 2014-12-09 12:21:28

是的，在瀏覽器中我得到了正確的答覆。實際上，當我嘗試阻止並將字符串轉換爲JSON對象時，我的內容就會丟失。該語句是「JSONObject jobj = new JSONObject（jsonStr）;」 – Sanket 2014-12-09 12:25:26

一個例子JSON文件進行解析

[ 
    { 

     "Language": "Afrikaans", 
     "Native_Language": "Afrikaans", 
     "code": "af" 
    }, 

    { 
     "Language": "Somali", 
     "Native_Language": "af Soomaali", 
     "code": "so" 
    }, 
    { 
     "Language": "Arabic", 
     "Native_Language": "(al arabiya) Ø§Ù„Ø¹Ø±Ø¨ÙŠØ©", 
     "code": "ar" 
    }, 
    { 
     "Language": "Azerbaijani", 
     "Native_Language": "AzÉ™rbaycan", 
     "code": "az" 
    } 
]

，並解析上述JSON文件。這個工作完全按照您的JSON響應更改了Android代碼。

package com.example.jsonparsing; 

import java.io.BufferedReader; 
import java.io.IOException; 
import java.io.InputStreamReader; 
import java.util.ArrayList; 

import org.json.JSONArray; 
import org.json.JSONException; 
import org.json.JSONObject; 

import android.os.Bundle; 
import android.support.v7.app.ActionBarActivity; 

import android.view.Menu; 
import android.view.MenuItem; 
import android.widget.ArrayAdapter; 
import android.widget.ListView; 


public class MainActivity extends ActionBarActivity { 

    private ListView listViewLanguages; 
    ArrayList<String> languageArray = new ArrayList<String>(); 

    @Override 
    protected void onCreate(Bundle savedInstanceState) { 
     super.onCreate(savedInstanceState); 
     setContentView(R.layout.activity_main); 
     listViewLanguages =(ListView)findViewById(R.id.languages); 
     //===========================Reading Json File===================================// 
     StringBuffer buffer = new StringBuffer(); 
     BufferedReader reader; 
     try { 
      reader = new BufferedReader(new InputStreamReader(getAssets().open("languagesupdated.json"))); 
      String readData; 
      while((readData = reader.readLine()) != null) 
      { 
       buffer.append(readData); 
      } 
     } catch (IOException e) { 
      e.printStackTrace(); 
     } 

     //===========================Getting Json Element===================================// 
     String languageName; 
     JSONArray array = null; 
     try { 
      array = new JSONArray(buffer.toString()); 
      for (int i = 0; i < array.length(); i++) { 
       JSONObject jsonObject = array.getJSONObject(i); 
       languageName = jsonObject.getString("Language"); 
       languageArray.add(languageName); 

       } 
     } catch (JSONException e) { 
      e.printStackTrace(); 
     } 
     //===========================GettingListView===================================// 
      ArrayAdapter<String> adapter = new ArrayAdapter<String>(this, android.R.layout.simple_list_item_1, languageArray); 
      //listViewLanguages.setBackgroundColor(new ColorDrawable)); 
      listViewLanguages.setAdapter(adapter); 


    } 

    @Override 
    public boolean onCreateOptionsMenu(Menu menu) { 
     // Inflate the menu; this adds items to the action bar if it is present. 
     getMenuInflater().inflate(R.menu.main, menu); 
     return true; 
    } 

    @Override 
    public boolean onOptionsItemSelected(MenuItem item) { 
     int id = item.getItemId(); 
     if (id == R.id.action_settings) { 
      return true; 
     } 
     return super.onOptionsItemSelected(item); 
    } 
}

來源

2014-12-09 12:25:53 Umer

JSON解析動態JSON對象名稱？

回答

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