jsonParser.makeHttpRequest error in json parsing

Question

Я пытаюсь разобрать данные с помощью json и AsyncTask. Но я получаю сообщение об ошибке на этих строках:

JSONObject json = jsonParser.makeHttpRequest(url_product_detials, "GET", params); 

это мой код:

public class EditWatchListProducts extends Activity { 

EditText txtName; 
EditText txtPrice; 
Button btnSave; 
Button btnDelete; 

String pid; 

private ProgressDialog pDialog; 

JSONParser jsonParser = new JSONParser(); 

     private static final String url_product_detials = "http://192.168.2.22/android_connect/get_product_details.php"; 

    private static final String url_update_product = "http://192.168.2.22/android_connect/update_product.php"; 

     private static final String url_delete_product = "http://192.168.2.22/android_connect/delete_product.php"; 

private static final String TAG_SUCCESS = "success"; 
private static final String TAG_PRODUCT = "product"; 
private static final String TAG_ID = "product_id"; 
private static final String TAG_NAME = "product_name"; 
private static final String TAG_PRICE = "target_price"; 
private static final String TAG_DESCRIPTION = "retailer"; 

@Override 
public void onCreate(Bundle savedInstanceState) { 
    super.onCreate(savedInstanceState); 
    setContentView(R.layout.edit_watchlist_product); 

    btnSave = (Button) findViewById(R.id.btnSave); 
    btnDelete = (Button) findViewById(R.id.btnDelete); 

    Intent i = getIntent(); 

    pid = i.getStringExtra(TAG_ID); 

    new GetProductDetails().execute(); 

    btnSave.setOnClickListener(new View.OnClickListener() { 

     @Override 
     public void onClick(View arg0) { 
      new SaveProductDetails().execute(); 
     } 
    }); 

    btnDelete.setOnClickListener(new View.OnClickListener() { 

     @Override 
     public void onClick(View arg0) { 
      new DeleteProduct().execute(); 
     } 
    }); 

} 

class GetProductDetails extends AsyncTask<String, String, String> { 

    @Override 
    protected void onPreExecute() { 
     super.onPreExecute(); 
     pDialog = new ProgressDialog(EditWatchListProducts.this); 
     pDialog.setMessage("Loading product details. Please wait..."); 
     pDialog.setIndeterminate(false); 
     pDialog.setCancelable(true); 
     pDialog.show(); 
    } 
    protected String doInBackground(String... params) { 

      runOnUiThread(new Runnable() { 
      public void run() { 
       // Check for success tag 
       int success; 
       try { 
        // Building Parameters 
        List<NameValuePair> params = new ArrayList<NameValuePair>(); 
        params.add(new BasicNameValuePair("product_id", pid)); 

        // getting product details by making HTTP request 
        // Note that product details url will use GET request 
        JSONObject json = jsonParser.makeHttpRequest(
          url_product_detials, "GET", params); 



        success = json.getInt(TAG_SUCCESS); 
        if (success == 1) { 
         JSONArray productObj = json 
           .getJSONArray(TAG_PRODUCT); // JSON Array 

         JSONObject product = productObj.getJSONObject(0); 
         txtName = (EditText) findViewById(R.id.inputName); 
         txtPrice = (EditText) findViewById(R.id.inputPrice); 
         txtDesc = (EditText) findViewById(R.id.inputDesc); 

         txtName.setText(product.getString(TAG_NAME)); 
         txtPrice.setText(product.getString(TAG_PRICE)); 
         txtDesc.setText(product.getString(TAG_DESCRIPTION)); 

        }else{ 
         // product with pid not found 
        } 
       } catch (JSONException e) { 
        e.printStackTrace(); 
       } 
      } 
     }); 

     return null; 
    } 

    protected void onPostExecute(String file_url) { 
     pDialog.dismiss(); 
    } 
} 
class SaveProductDetails extends AsyncTask<String, String, String> { 
    @Override 
    protected void onPreExecute() { 
     super.onPreExecute(); 
     pDialog = new ProgressDialog(EditWatchListProducts.this); 
     pDialog.setMessage("Saving product ..."); 
     pDialog.setIndeterminate(false); 
     pDialog.setCancelable(true); 
     pDialog.show(); 
    } 

    protected String doInBackground(String... args) { 

     String name = txtName.getText().toString(); 
     String price = txtPrice.getText().toString(); 
     String description = txtDesc.getText().toString(); 

     List<NameValuePair> params = new ArrayList<NameValuePair>(); 
     params.add(new BasicNameValuePair(TAG_ID, pid)); 
     params.add(new BasicNameValuePair(TAG_NAME, name)); 
     params.add(new BasicNameValuePair(TAG_PRICE, price)); 
     params.add(new BasicNameValuePair(TAG_DESCRIPTION, description)); 

     JSONObject json = jsonParser.makeHttpRequest(url_update_product, 
       "POST", params); 

     try { 
      int success = json.getInt(TAG_SUCCESS); 

      if (success == 1) { 
       Intent in = new Intent(getApplicationContext(), 
         WatchListProducts.class); 
       startActivity(in); 
      } else { 
       // failed to update product 
      } 
     } catch (JSONException e) { 
      e.printStackTrace(); 
     } 

     return null; 
    } 
    protected void onPostExecute(String file_url) { 
     pDialog.dismiss(); 
    } 
} 

class DeleteProduct extends AsyncTask<String, String, String> { 
    @Override 
    protected void onPreExecute() { 
     super.onPreExecute(); 
     pDialog = new ProgressDialog(EditWatchListProducts.this); 
     pDialog.setMessage("Deleting Product..."); 
     pDialog.setIndeterminate(false); 
     pDialog.setCancelable(true); 
     pDialog.show(); 
    } 

    protected String doInBackground(String... args) { 

     int success; 
     try { 
      List<NameValuePair> params = new ArrayList<NameValuePair>(); 
      params.add(new BasicNameValuePair("product_id", pid)); 
      JSONObject json = jsonParser.makeHttpRequest(
        url_delete_product, "POST", params); 

      Log.d("Delete Product", json.toString()); 

      success = json.getInt(TAG_SUCCESS); 
      if (success == 1) { 
      Intent in = new Intent(getApplicationContext(), 
         WatchListProducts.class); 
       startActivity(in); 
      } 
     } catch (JSONException e) { 
      e.printStackTrace(); 
     } 

     return null; 
    } 

    protected void onPostExecute(String file_url) { 
     pDialog.dismiss(); 

    } 

    } 
} 

EDIT:

Тот же код хорошо работает на отдельном project.when я внедрил с моим проектом, что время я получаю следующие исключения ...

Что не так в моем коде ???

Edit: обновленный журнал

 07-19 16:43:31.018: E/AndroidRuntime(3009): FATAL EXCEPTION: main 
     07-19 16:43:31.018: E/AndroidRuntime(3009): android.os.NetworkOnMainThreadException 
     07-19 16:43:31.018: E/AndroidRuntime(3009): at android.os.StrictMode$AndroidBlockGuardPolicy.onNetwork(StrictMode.java:1084) 
    07-19 16:43:31.018: E/AndroidRuntime(3009):  at java.net.InetAddress.lookupHostByName(InetAddress.java:391) 
     07-19 16:43:31.018: E/AndroidRuntime(3009): at java.net.InetAddress.getAllByNameImpl(InetAddress.java:242) 
    07-19 16:43:31.018: E/AndroidRuntime(3009): at java.net.InetAddress.getAllByName(InetAddress.java:220) 
    07-19 16:43:31.018: E/AndroidRuntime(3009): at org.apache.http.impl.conn.DefaultClientConnectionOperator.openConnection(DefaultClientConnectionOperator.java:137) 
    07-19 16:43:31.018: E/AndroidRuntime(3009): at org.apache.http.impl.conn.AbstractPoolEntry.open(AbstractPoolEntry.java:164) 
    07-19 16:43:31.018: E/AndroidRuntime(3009): at org.apache.http.impl.conn.AbstractPooledConnAdapter.open(AbstractPooledConnAdapter.java:119) 
    07-19 16:43:31.018: E/AndroidRuntime(3009): at org.apache.http.impl.client.DefaultRequestDirector.execute(DefaultRequestDirector.java:360) 
    07-19 16:43:31.018: E/AndroidRuntime(3009): at org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:555) 
    07-19 16:43:31.018: E/AndroidRuntime(3009):  at org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:487) 
    07-19 16:43:31.018: E/AndroidRuntime(3009): at org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:465) 
    07-19 16:43:31.018: E/AndroidRuntime(3009):  at com.example.androidbestinuk.JSONParser.makeHttpRequest(JSONParser.java:60) 
    07-19 16:43:31.018: E/AndroidRuntime(3009): at com.example.androidbestinuk.EditWatchListProducts$GetProductDetails$1.run(EditWatchListProducts.java:131) 
     07-19 16:43:31.018: E/AndroidRuntime(3009): at android.os.Handler.handleCallback(Handler.java:605) 
    07-19 16:43:31.018: E/AndroidRuntime(3009): at android.os.Handler.dispatchMessage(Handler.java:92) 
    07-19 16:43:31.018: E/AndroidRuntime(3009): at android.os.Looper.loop(Looper.java:137) 
     07-19 16:43:31.018: E/AndroidRuntime(3009): at android.app.ActivityThread.main(ActivityThread.java:4340) 
    07-19 16:43:31.018: E/AndroidRuntime(3009):  at java.lang.reflect.Method.invokeNative(Native Method) 
    07-19 16:43:31.018: E/AndroidRuntime(3009): at java.lang.reflect.Method.invoke(Method.java:511) 
    07-19 16:43:31.018: E/AndroidRuntime(3009): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:784) 
    07-19 16:43:31.018: E/AndroidRuntime(3009):  at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:551) 
    07-19 16:43:31.018: E/AndroidRuntime(3009): at dalvik.system.NativeStart.main(Native Method) 

Answer 1

Вы runOnUiThread, который работает на потоке пользовательского интерфейса и у вас есть эта

JSONObject json = jsonParser.makeHttpRequest(
         url_product_detials, "GET", params); 

от вас комментариев выше кода getting product details by making HTTP request. Таким образом, вы делаете HTTP-запрос на поток ui. Вы получите NetworkOnMainThreadException.

public final void runOnUiThread (Runnable action)

Added in API level 1

Runs the specified action on the UI thread. If the current thread is the UI thread, then the action is executed immediately. If the current thread is not the UI thread, the action is posted to the event queue of the UI thread.

Parameters

action the action to run on the UI thread

Так удалить runOnUiThread и обновления пользовательского интерфейса в onPreExecute и onPostExecute. Сделайте запрос HTTp в doInbackground.

Answer 2

Здесь мы сталкиваемся с ошибкой networkOnMainThreadException. Так что мы используем следующие 2 строки, что означает успешное получение результата.

StrictMode.ThreadPolicy policy = new StrictMode.ThreadPolicy.Builder().permitAll().build(); 
    StrictMode.setThreadPolicy(policy); 

Надеюсь, это полезно всем.