[ Android Entwicklung ] POST Anfrage an Webserver und parsen

package com.halal.helalcheck;

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

import org.apache.http.HttpEntity;
import org.apache.http.HttpResponse;
import org.apache.http.NameValuePair;
import org.apache.http.client.HttpClient;
import org.apache.http.client.entity.UrlEncodedFormEntity;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.impl.client.DefaultHttpClient;
import org.apache.http.message.BasicNameValuePair;
import org.json.JSONArray;
import org.json.JSONObject;

import android.app.Activity;
import android.os.Bundle;
import android.util.Log;

public class HalalcheckActivity extends Activity {
    /** Called when the activity is first created. */
    String TAG = "meinDebug";
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);

        String ean_Att = parseJSONPost("data", "ean");
        String name_Att = parseJSONPost("data", "name");
        String level_Att = parseJSONPost("data", "level");
        String content_Att = parseJSONPost("data", "content");

        String countProducts = parseJSONPost("count", null);

        Log.i(TAG, "EAN-Code: " + ean_Att);
        Log.i(TAG, "Name: " + name_Att);
        Log.i(TAG, "Level: " + level_Att);
        Log.i(TAG, "Content: " + content_Att);
        Log.i(TAG, "Anzahl der Produkte: " + countProducts);

    }


    // Parse JSON Anfrage
    public String parseJSONPost(String dataTyp, String dataAttribute) {

        String productAttribute = null;
        String count_string = null;
        String readProductDb = readProductDb();
        Log.i(TAG, readProductDb);
        try {
            JSONObject jsonObject = new JSONObject(readProductDb);
            //Log.i(TAG, "Number of entries " + jsonObject.length());
            JSONArray dataArray = jsonObject.getJSONArray("data");
            int count = jsonObject.getInt("count");

            count_string = Integer.toString(count);
            JSONObject jsonProductData = dataArray.getJSONObject(0);
            if (dataAttribute != null) {
                productAttribute = jsonProductData.getString(dataAttribute);
            }

        } catch (Exception e) {
            e.printStackTrace();
        }
        if (dataTyp == "data" ) {
            return productAttribute;
        }
        else {
            return count_string;
        }

    }

    // POST Anfrage an Webserver
    public String readProductDb() {
        StringBuilder sb1 = new StringBuilder();
        try {
            // Create a new HttpClient and Post Header
            HttpClient httpclient = new DefaultHttpClient();
            HttpPost httppost = new HttpPost("http://nur-efsan.de/websHalalCheck/public/index/advancequest/");
            // Add your data
            List<NameValuePair> nameValuePairs = new ArrayList<NameValuePair>(2);
            nameValuePairs.add(new BasicNameValuePair("productName", "7622300202286"));
            httppost.setEntity(new UrlEncodedFormEntity(nameValuePairs));
            // Execute HTTP Post Request
            HttpResponse response = httpclient.execute(httppost);
            HttpEntity entity = response.getEntity();
            // convert stream to String
            BufferedReader buf = new BufferedReader(new InputStreamReader(entity.getContent()));
            String line = null;
            while ((line = buf.readLine() ) != null) {
                sb1.append(line+"\n");
            }
        } catch (Exception e) {
            // TODO Auto-generated catch block
        }
        return sb1.toString();
    }

}