Android 如何解析以下JSON？

嗨，我是JSON格式Web服务的新手。 我有一个类似于

{   "meta":{"success":1},

"Countries":
[[{"Id":"1","Name":"Gibraltar",
    "Cities":
    [[{"Id":"21","Name":"Gibraltar"}]]
  },
  {"Id":"2","Name":"Canada",
    "Cities":
    [[{"Id":"22","Name":"Toronto"},
          {"Id":"39","Name":"Banff"}]]
  },
      {"Id":"4","Name":"Malta",
    "Cities":
    [[{"Id":"37","Name":"Valletta"}]]
  },
      {"Id":"51","Name":"Italy",
    "Cities":
    [[{"Id":"24","Name":"Sardinia"}]]
  },
  {"Id":"53","Name":"England",
    "Cities":
    [[{"Id":"23","Name":"London"},
      {"Id":"38","Name":"Guildford"},
      {"Id":"43","Name":"Petersfield"},
          {"Id":"44","Name":"Isle of Wight"}]]
  },
  {"Id":"175","Name":"Hungary",
    "Cities":
    [[{"Id":"36","Name":"Budapest"}]]
  }
]]
}

但是我无法得到这些值。。当解析为json对象时

我试着得到的价值观像

public class JSONParsing1 extends ListActivity {

private static String url = "http://wsapi.vr2020.com/countries.json";

private static final String TAG_META = "meta";
private static final String TAG_SUCCESS = "success";
private static final String TAG_COUNTRIES = "Countries";
private static final String TAG_ID = "Id";
private static final String TAG_NAME = "Name";
private static final String TAG_CITY = "Cities";
private static final String TAG_CITY_ID = "Id";
private static final String TAG_CITY_NANE = "Name";

private String id;
private String name;
private String city_id;
private String city_name;
JSONObject meta;
JSONArray Countries = null;
JSONArray Cities = null;

/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.main);

    ArrayList<HashMap<String, String>> list = new ArrayList<HashMap<String,        String>>();

    JSONParser jsonParser = new JSONParser();
    JSONObject jsonObject = jsonParser.getJSONFromUrl(url);

    try {
        meta = jsonObject.getJSONObject(TAG_META);

        TextView startText = (TextView) findViewById(R.id.stat_textView);
        startText.setText(meta.getString(TAG_SUCCESS));


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

    try {

        Countries = meta.getJSONArray(TAG_COUNTRIES);
        for (int i = 0; i < Countries.length(); i++) {
            JSONObject obj = Countries.getJSONObject(i);

            id = obj.getString(TAG_ID);
            name = obj.getString(TAG_NAME);

            JSONArray city = obj.getJSONArray(TAG_CITY);
            for(int j = 0; j< city.length(); j++){
                JSONObject cityobj = city.getJSONObject(j);

                city_id = cityobj.getString(TAG_CITY_ID);
                city_name = cityobj.getString(TAG_CITY_ID);

            }

            HashMap<String, String> map = new HashMap<String, String>();
            map.put(TAG_ID, id);
            map.put(TAG_NAME, name);
            list.add(map);
        }

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

    ListAdapter adapter = new SimpleAdapter(this, list,
            R.layout.list_items, new String[] { TAG_ID, TAG_NAME,
                     }, new int[] { R.id.id_textView,
                    R.id.name_textView,   R.id.description_textView });
    setListAdapter(adapter);

}

}

任何人都可以分享如何解析上述JSON吗？ 提前感谢。

将当前Json解析为：

JSONObject jsonObj = new JSONObject(jsonStr); 

// these 2 are strings 
JSONObject c = jsonObj.getJSONObject("meta");
String success = c.getString("success"); 

JSONArray jsonarr = jsonObj.getJSONArray("Countries");

// lets loop through the JSONArray and get all the items 
for (int i = 0; i < jsonarr.length(); i++) { 
     JSONArray jsonarra = jsonarr.getJSONArray(i);
    // lets loop through the JSONArray and get all the items 
    for (int j = 0; j < jsonarra.length(); j++) { 
         JSONObject jsonarrtwo = jsonarra.getJSONObject(j);
               // these 2 are strings 
        String str_id = jsonarrtwo.getString("id"); 
        String str_Name = jsonarrtwo.getString("Name"); 

                JSONArray jsonarr_cities = jsonarrtwo.getJSONArray("Cities");
            // lets loop through the JSONArray and get all the items 
            for (int t = 0; t < jsonarr_cities.length(); t++) { 
                // printing the values to the logcat 
                JSONArray jsonarr_cities_one = jsonarrtwo.getJSONArray(t);
            for (int tt = 0; tt < jsonarr_cities_one.length(); tt++) { 
                // printing the values to the logcat 

                JSONObject jsonarr_cities_two = jsonarr_cities_one.getJSONObject(tt);
                   // these 2 are strings 
                String str_idone = jsonarr_cities_two.getString("id"); 
                String str_Nameone = jsonarr_cities_two.getString("Name"); 
              } 
            } 
    } 
} 

JSONObject jsonObj=新的JSONObject（jsonStr）；
//这两个是字符串
JSONObject c=jsonObj.getJSONObject（“meta”）；
String success=c.getString（“success”）；
JSONArray jsonarr=jsonObj.getJSONArray（“国家”）；
//让我们在JSONArray中循环并获取所有项
对于（inti=0；i

要解析json，请尝试以下步骤：

要格式化json，请执行以下操作：

---

您可以使用此工具验证json字符串

您的json字符串包含一个json数组，json数组位于国家标记和城市标记处。 在您的

JSONParsing1

活动中尝试类似的操作

替换代码行

Countries = meta.getJSONArray(TAG_COUNTRIES);  

JSONArray city = obj.getJSONArray(TAG_CITY);

用这条线

Countries = new JSONArray(jsonObject.getJSONArray(TAG_COUNTRIES).toString());

JSONArray city = new JSONArray(obj.getJSONArray(TAG_CITY).toString());

替换代码行

Countries = meta.getJSONArray(TAG_COUNTRIES);  

JSONArray city = obj.getJSONArray(TAG_CITY);

用这条线

Countries = new JSONArray(jsonObject.getJSONArray(TAG_COUNTRIES).toString());

JSONArray city = new JSONArray(obj.getJSONArray(TAG_CITY).toString());

---

它可能会帮助你解决这个问题。这样试试……；）

但是我无法获得值，你尝试了什么？JSON似乎很好，你有什么问题吗？点击这个链接..Ganesh:你能展示一下你当前使用的解析器函数代码吗？我已经和解析器类一起编辑了我的帖子谢谢你，JSONArray jsonarr\u cities\u one=jsonarrtwo.getJSONArray（t）；在上面的getJSONArray（t）方法中，t作为整数不被接受。@Ganesh:try
jsonArray.get（t）
而不是
jsonarrtwo.getJSONArray（t）您可以做一些更改，但按照您提供的方式解析json字符串是正确的。谢谢