如何從json webservices獲取值

以下是我從webservice得到的json響應。 {"message":"success","data":[{"push_status":"1"}]} 我想獲得推送狀態的值。如何從json webservices獲取值

這是我的代碼：

 public static VehicleDetails getPushNotificationstatus(String clientCode,String secretode) throws ClientProtocolException, 
      IOException, JSONException { 
       Log.d(WebServiceHelper.TAG, "getPushNotificationstatus==============>"); 
     VehicleDetails vdetails = null; 
     String result; 
     ArrayList<VehicleDetails> SIArrayList = new ArrayList<VehicleDetails>(); 
     JSONObject jObject = null; 
     try { 
      Log.d(WebServiceHelper.TAG, "WebserviceHelperOnLogin>>>>>>>>>>>"); 
      vdetails = new VehicleDetails(); 
      METHOD_NAME = "getPushNotifyStatus"; 
      Log.d(WebServiceHelper.TAG, "URL>>>>>>>>"+URL + METHOD_NAME); 
      HttpPost request = new HttpPost(URL + METHOD_NAME); 
      List<NameValuePair> postParameters = new ArrayList<NameValuePair>(); 
      postParameters.add(new BasicNameValuePair("clientCode", clientCode)); 
      postParameters.add(new BasicNameValuePair("secretCode", secretode)); 



      UrlEncodedFormEntity entity = new UrlEncodedFormEntity(
        postParameters); 
      request.setEntity(entity); 
      HttpResponse response = getThreadSafeClient().execute(request); 
      entityResponse = response.getEntity(); 
      result = EntityUtils.toString(entityResponse, HTTP.UTF_8); 
      // Log.i("FB", "result ::: " + result); 
      Log.d(TAG, "ResultPushStatus>>>>"+result); 
      jObject = new JSONObject(result); 

      vdetails.status_login = jObject.getString("message"); 
      // Log.i("FB", "contact.status_login ::: " + contact.status_login); 

      if (vdetails.status_login.contentEquals("success")) { 
       jObject = new JSONObject(jObject.getString("data")); 
       vdetails.pushStatus = jObject.getString("push_status"); 
       Log.d(TAG,"Push Status==================>"+vdetails.pushStatus); 
      } else if(vdetails.status_login.contentEquals("failed")){ 
       String Reason = jObject.getString("data").toString(); 
       Log.d(WebServiceHelper.TAG, "Fail Reason>>>>>"+Reason); 
       vdetails.failReason = Reason; 
      } 
     } catch (Exception e) { 
      e.printStackTrace(); 
     } 

     return vdetails; 

     } 

public static VehicleDetails[] getAllVehicles(String clientCode,String

SECRETCODE）拋出ClientProtocolException，IOException異常，JSONException {VehicleDetails [] VD = NULL; String result = null;

VehicleDetails vdetails = null; ArrayList vehicleArrayList = new ArrayList（）; JSONObject jObject = null; String loginUrl =「getAllVehicles」;

嘗試{

HttpPost請求=新HttpPost（URL + loginUrl）;列表postParameters = new ArrayList（）;

postParameters.add（新BasicNameValuePair（「clientCode」，clientCode））; postParameters.add（new BasicNameValuePair（「secretCode」，secretCode））;

UrlEncodedFormEntity實體=新UrlEncodedFormEntity（postParameters）; request.setEntity（實體）; HttpResponse response = getThreadSafeClient（）。execute（request）; entityResponse = response.getEntity（）;結果= EntityUtils.toString（entityResponse，HTTP.UTF_8）; Log.d（TAG，「result >>」+ result）; JSONObject對象=（JSONObject）新的JSONTokener（結果）.nextValue（）; VehicleDetails.status_login = object.getString（「message」）;

如果（VehicleDetails.status_login contentEquals（「成功」））{JSONArray陣列= object.getJSONArray（「數據」）; vehicleArrayList.clear（）; for（int i = 0; i < array.length（）; i ++）{Log.d（TAG，「LiveTracking >>>>>>>>>>」）;

JSONObject jObj = array.getJSONObject（i）; String vehicleId = jObj.getString（「vehicle_id」）。toString（）; String vehicleNumber = jObj.getString（「vehicle_number」）。toString（）;

vdetails = new VehicleDetails（）;

vdetails.vehicleId = vehicleId; vdetails.vehicleNo = vehicleNumber;

vehicleArrayList.add（vdetails）;

} VD =新VehicleDetails [vehicleArrayList.size（）];

對（INT X = 0; X < vehicleArrayList.size（）; ++ X）{

VD [X] =（VehicleDetails）vehicleArrayList.get（X）; }} else if（VehicleDetails.status_login.contentEquals（「failed」））{

JSONArray array = object.getJSONArray（「data」）; （i = 0; < array.length（）; i ++）{JSONObject jObj = array.getJSONObject（i）;

vdetails.failReason = jObj.getString（「數據」）的toString（）;

}

}趕上（例外五）{即的printStackTrace（）; }

return vd;

}

//米但是日誌顯示

05-02 14:34:40.597: W/System.err(10261): org.json.JSONException: Value [{"push_status":"1"}] of type org.json.JSONArray cannot be converted to JSONObject 
    05-02 14:34:40.617: W/System.err(10261): at org.json.JSON.typeMismatch(JSON.java:107) 
    05-02 14:34:40.627: W/System.err(10261): at org.json.JSONObject.<init>(JSONObject.java:158) 
    05-02 14:34:40.627: W/System.err(10261): at org.json.JSONObject.<init>(JSONObject.java:171)

請告訴我這樣做的原因是什麼？請幫我

來源

2014-05-02 user3584800

迴應不是JSON對象，這是一個JSON陣列與一個元素。

JSONArray a = new JSONArray("[{your JSON code}]"); 
JSONObject = a.getJSONObject(1);

來源

2014-05-02 09:24:14

我認爲它應該是JSONObject = a.getJSONObject（0）; –

在以下行中，'data'返回JSON數組而不是字符串。（因爲它包含在[]中）

jObject = new JSONObject(jObject.getString("data"));

因此，您需要首先獲取jsonArray。

JSONArray jArray = jObject.getJSONArray("data");

然後從數組中獲得第一個對象。

JSONObject dataObject = jArray.getJSONObject(0);

現在獲取字符串。

String pushStatus = dataObject.getString("push_status");

來源

2014-05-02 09:29:10

如何從json webservices獲取值

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