Question

//这是my__json__数据 json ////这是主要的json对象

{
  "cityMasterEntity":
--This is array
 [
    {
      "CityId": 1,
      "CityName": "Ahmedabad",
      "CreatedDate": "\/Date(1373091319697+0530)\/",
      "IsActive": true,
      "StateId": 6,
      "StateName": "Gujarat\u000d\u000a",
      "UpdatedDate": null
    },
    {
      "CityId": 3,
      "CityName": "Rajkot",
      "CreatedDate": "\/Date(1373091319697+0530)\/",
      "IsActive": true,
      "StateId": 6,
      "StateName": "Gujarat\u000d\u000a",
      "UpdatedDate": null
    },
    {
      "CityId": 2,
      "CityName": "Surat",
      "CreatedDate": "\/Date(1373091319697+0530)\/",
      "IsActive": true,
      "StateId": 6,
      "StateName": "Gujarat\u000d\u000a",
      "UpdatedDate": null
    }`enter code here`
  ]
}

Answer 1

{   // json object node
  "cityMasterEntity":[ // json array
    {                  // json object node
      "CityId": 1

解析

JSONObject jb = new JSONObject("yourString");
JSONArray city = jb.getJSONArray("cityMasterEntity");
for(int i=0;i<city.length();i++)
{
   JSONObject jb1 =(JSONObject) city.getJSONObject(i);
   int id = jb1.getInt("CityId");
   String name = jb1.getString("CityName");  
   ...// similarl for name and others
}

要将其存储在数据库中，您可以使用sqlite。要显示ca，请使用列表视图。

编辑：

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

    @Override
    protected String doInBackground(Void... arg0) {
        String _response= null;
        try
        {
             HttpClient httpclient = new DefaultHttpClient();
             httpclient.getParams().setParameter(CoreProtocolPNames.PROTOCOL_VERSION, HttpVersion.HTTP_1_1);
             HttpGet request = new HttpGet("http://www.clubrummy.in/MobileWCF/RummyService/GetMasterDetail");  
             HttpResponse response = httpclient.execute(request);
             HttpEntity resEntity = response.getEntity();
             _response=EntityUtils.toString(resEntity); // content will be consume only once
                Log.i(".......",_response);
        }catch(Exception e)
        {

        }
        return _response;
    }

   @Override
   protected void onPostExecute(String result) {
    // TODO Auto-generated method stub
    super.onPostExecute(result);
    if(result!=null)
    {
        try
        {
        JSONObject jb = new JSONObject(result);
        JSONArray city = jb.getJSONArray("cityMasterEntity");
        for(int i=0;i<city.length();i++)
        {
           JSONObject jb1 =(JSONObject) city.getJSONObject(i);
           int id = jb1.getInt("CityId");
           String name = jb1.getString("CityName");  
           Log.i("Name is",""+name);
        }
        }catch(Exception e)
        {
            e.printStackTrace();
        }

        }
    }
    }

编辑2：

实际上，您可以在doInbackground本身中解析数据库中的json存储数据。在onPostExecute中更新ui

  class TheTask extends AsyncTask<Void,Void,Void>
  {

    @Override
    protected Void doInBackground(Void... arg0) {
        String _response= null;
        try
        {
             HttpClient httpclient = new DefaultHttpClient();
             httpclient.getParams().setParameter(CoreProtocolPNames.PROTOCOL_VERSION, HttpVersion.HTTP_1_1);
             HttpGet request = new HttpGet("http://www.clubrummy.in/MobileWCF/RummyService/GetMasterDetail");  
             HttpResponse response = httpclient.execute(request);
             HttpEntity resEntity = response.getEntity();
             _response=EntityUtils.toString(resEntity); // content will be consume only once
                Log.i(".......",_response);
                if(_response!=null)
                {

                    JSONObject jb = new JSONObject(_response);
                    JSONArray city = jb.getJSONArray("cityMasterEntity");
                    for(int i=0;i<city.length();i++)
                    {
                       JSONObject jb1 =(JSONObject) city.getJSONObject(i);
                       int id = jb1.getInt("CityId");
                       String name = jb1.getString("CityName");  
                       Log.i("Name is",""+name);
                    }
                }
        }catch(Exception e)
        {

        }
        return null;
    }

    @Override
    protected void onPostExecute(Void result) {
        // TODO Auto-generated method stub
        super.onPostExecute(result);

  }
  }

此外，如果从数据库加载数据需要时间，请使用加载器。

如何解析这个json数据？并将其直接存储在数据库中，然后在listview中显示

1 个答案: