Error Connect Android Json Parse HTTP Showing in Fragment

Question

I have a problem when it’s time to connect, someone could help me please. I’m new and I’m not able to make the connection of JSON PARSE HTTP with FRAGMENTS all tutorials show with ACTIVITY, but I’ve tried to convert and I can’t, I’m grateful, if you can help me.

Jsonparser.java code

package br.com.menuruenf.menuruenf.domain;

import android.util.Log;

import org.apache.http.HttpEntity;
import org.apache.http.HttpResponse;
import org.apache.http.client.ClientProtocolException;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.impl.client.DefaultHttpClient;
import org.json.JSONException;
import org.json.JSONObject;

import java.io.BufferedReader; 
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.UnsupportedEncodingException;

/**
 * Created by Rodolfo on 15/09/2015.
 */
 public class JSONParser {
    static InputStream is = null;
    static JSONObject jObj = null;
    static String json = "";

 // constructor
public JSONParser() {

    }

public JSONObject getJSONFromUrl(String url) {

    // Making HTTP request
    try {
        // defaultHttpClient
        DefaultHttpClient httpClient = new DefaultHttpClient();
        HttpPost httpPost = new HttpPost(url);

        HttpResponse httpResponse = httpClient.execute(httpPost);
        HttpEntity httpEntity = httpResponse.getEntity();
        is = httpEntity.getContent();

        } catch (UnsupportedEncodingException e) {
            e.printStackTrace();
        } catch (ClientProtocolException e) {
            e.printStackTrace();
        } catch (IOException e) {
            e.printStackTrace();
        }

    try {
        BufferedReader reader = new BufferedReader(new InputStreamReader(
        is, "iso-8859-1"), 8);
        StringBuilder sb = new StringBuilder();
        String line = null;

        while ((line = reader.readLine()) != null) {
                sb.append(line + "n");
        }

        is.close();

        json = sb.toString();
        } catch (Exception e) {
            Log.e("Buffer Error", "Error converting result " + e.toString());
        }

    // try parse the string to a JSON object
    try {
      jObj = new JSONObject(json);
        } catch (JSONException e) {
            Log.e("JSON Parser", "Error parsing data " + e.toString());
        }

    // return JSON String
    return jObj;

    }
}

Dinnerfragment.java code

package br.com.menuruenf.menuruenf.fragments;

import android.app.ProgressDialog;
import android.os.AsyncTask;
import android.os.Bundle;
import android.os.StrictMode;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.TextView;
import android.widget.Toast;

import org.apache.http.HttpEntity;
import org.apache.http.HttpResponse;
import org.apache.http.client.HttpClient;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.impl.client.DefaultHttpClient;
import org.apache.http.util.EntityUtils;
import org.json.JSONArray;
import org.json.JSONException;
import org.json.JSONObject;
import org.w3c.dom.Text;

import java.io.IOException;

import br.com.menuruenf.menuruenf.R;
import br.com.menuruenf.menuruenf.domain.Dinner;
import br.com.menuruenf.menuruenf.domain.JSONParser;

/**
 * Created by Rodolfo on 01/09/2015.
 */
public class DinnerFragment extends BaseFragment  {


//URL to get JSON Array
 private static String url = "http://menu-api.herokuapp.com/dinners.json";

//JSON Node data
private static final String TAG_DINNER              = "";
private static final String TAG_ID                  = "id";
private static final String TAG_DATE                = "date";
private static final String TAG_SALAD               = "salad";
private static final String TAG_ACCOMPANIMENT       = "accompaniment";
private static final String TAG_GARNISH             = "garnish";
private static final String TAG_PROTEIN1            = "protein1";
private static final String TAG_PROTEIN2            = "protein2";
private static final String TAG_PROTEIN3            = "protein3";
private static final String TAG_DESSERT             = "dessert";
private static final String TAG_JUICE               = "juice";

JSONArray dinner = null;

TextView dinner_id;
TextView dinner_date;
TextView dinner_salad;
TextView dinner_accompaniment1;
TextView dinner_garnish;
TextView dinner_protein1;
TextView dinner_protein2;
TextView dinner_protein3;
TextView dinner_dessert;
TextView dinner_juice;





@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
                         Bundle savedInstanceState){




    View view = inflater.inflate(R.layout.fragment_dinner, container, false);


    //Import TextView
    dinner_date             = (TextView) view.findViewById(R.id.dinner_date);
    dinner_salad            = (TextView) view.findViewById(R.id.dinner_salad);
    dinner_accompaniment1   = (TextView) view.findViewById(R.id.dinner_accompaniment1);
    dinner_garnish          = (TextView) view.findViewById(R.id.dinner_garnish);
    dinner_protein1         = (TextView) view.findViewById(R.id.dinner_protein1);
    dinner_protein2         = (TextView) view.findViewById(R.id.dinner_protein2);
    dinner_protein3         = (TextView) view.findViewById(R.id.dinner_protein3);
    dinner_dessert          = (TextView) view.findViewById(R.id.dinner_dessert);
    dinner_juice            = (TextView) view.findViewById(R.id.dinner_juice);

    //Creating new JSON Parser
    JSONParser jsonParser = new JSONParser();

    //Getting JSON from URL
    JSONObject json = jsonParser.getJSONFromUrl(url);



    try {

        //Getting JSON Array
        dinner          = json.getJSONArray(TAG_DINNER);
        JSONObject c    = dinner.getJSONObject(0);


        //Storing JSON item in a Variable
        String did               = c.getString(TAG_ID);
        String ddate             = c.getString(TAG_DATE);
        String dsalad            = c.getString(TAG_SALAD);
        String daccompaniment    = c.getString(TAG_ACCOMPANIMENT);
        String dgarnish          = c.getString(TAG_GARNISH);
        String dprotein1         = c.getString(TAG_PROTEIN1);
        String dprotein2         = c.getString(TAG_PROTEIN2);
        String dprotein3         = c.getString(TAG_PROTEIN3);
        String ddessert          = c.getString(TAG_DESSERT);
        String djuice            = c.getString(TAG_JUICE);


        //Set JSON DATA in TextView
        dinner_date.setText(ddate);
        dinner_salad.setText(dsalad);
        dinner_accompaniment1.setText(daccompaniment);
        dinner_garnish.setText(dgarnish);
        dinner_protein1.setText(dprotein1);
        dinner_protein2.setText(dprotein2);
        dinner_protein3.setText(dprotein3);
        dinner_dessert.setText(ddessert);
        dinner_juice.setText(djuice);



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



    return view;
    }

}  

UPDATE A Great solution is the retrofit, simple and functional.