E/AndroidRuntime: FATALE AUSNAHME: AsyncTask # 2

Question

Ich habe Probleme damit ... bitte helfen Sie mir. Ich habe logcat Ausgabe auch angeschlossen ... bitte helfen Sie mir damit. Ich rufe Datenbank von localhost URL auf, wie ich meine Datenbank innerhalb XAMPP mysql gehalten habe. Das Problem ist, dass das ListView überhaupt nichts zeigt. Anwendung wird abgestürzt.

public class Delivery_info extends ListActivity { 

private ProgressDialog pDialog; 

// Creating JSON Parser object 
JSONParser jParser = new JSONParser(); 


ArrayList<HashMap<String, String>> productsList; 

// url to get all products list 
private static String url_all_products = "http:/127.0.0.1/hul/get_all_products.php"; 

// JSON Node names 
private static final String TAG_SUCCESS = "success"; 
private static final String TAG_PRODUCTS = "product"; 
private static final String TAG_DATE = "created_on"; 
private static final String TAG_DELIVERY = "delivery_id"; 
private static final String TAG_INVOICE = "invoice_amt"; 


// products JSONArray 
JSONArray products = null; 

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

    // Hashmap for ListView 
    productsList = new ArrayList<HashMap<String, String>>(); 

    // Loading products in Background Thread 
    new LoadAllProducts().execute(); 

    // Get listview 
    ListView lv = getListView(); 

    // on seleting single product 
    // launching Edit Product Screen 
    lv.setOnItemClickListener(new AdapterView.OnItemClickListener() { 

     @Override 
     public void onItemClick(AdapterView<?> parent, View view, 
           int position, long id) { 
      // getting values from selected ListItem 
      String pid = ((TextView) view.findViewById(R.id.pid)).getText() 
        .toString(); 

      // Starting new intent 
      /**Intent in = new Intent(getApplicationContext(), Finances.class); 
      // sending pid to next activity 
      in.putExtra(TAG_PRODUCTS, pid); 

      // starting new activity and expecting some response back 
      startActivityForResult(in, 100);**/ 
     } 
    }); 

} 


// Response from Edit Product Activity 
@Override 
protected void onActivityResult(int requestCode, int resultCode, Intent data) { 
    super.onActivityResult(requestCode, resultCode, data); 
    // if result code 100 
    if (resultCode == 100) { 
     // if result code 100 is received 
     // means user edited/deleted product 
     // reload this screen again 
     Intent intent = getIntent(); 
     finish(); 
     startActivity(intent); 
    } 

} 
class LoadAllProducts extends AsyncTask<String, String, String> { 

    /** 
    * Before starting background thread Show Progress Dialog 
    */ 
    @Override 
    protected void onPreExecute() { 
     super.onPreExecute(); 
     pDialog = new ProgressDialog(Delivery_info.this); 
     pDialog.setMessage("Loading products. Please wait..."); 
     pDialog.setIndeterminate(false); 
     pDialog.setCancelable(false); 
     pDialog.show(); 
    } 

    /** 
    * getting All products from url 
    */ 
    protected String doInBackground(String... args) { 
     // Building Parameters 
     List<NameValuePair> params = new ArrayList<NameValuePair>(); 
     // getting JSON string from URL 
     JSONObject json = jParser.makeHttpRequest(url_all_products, "GET", params); 
     // Check your log cat for JSON response 
     Log.d("All Products: ", json.toString()); 

     try { 
      // Checking for SUCCESS TAG 
      int success = json.getInt(TAG_SUCCESS); 

      if (success == 1) { 
       // products found 
       // Getting Array of Products 
       products = json.getJSONArray(TAG_PRODUCTS); 

       // looping through All Products 
       for (int i = 0; i < products.length(); i++) { 
        JSONObject c = products.getJSONObject(i); 

        // Storing each json item in variable 
        String id = c.getString(TAG_PRODUCTS); 
        String name = c.getString(TAG_DATE); 

        // creating new HashMap 
        HashMap<String, String> map = new HashMap<String, String>(); 

        // adding each child node to HashMap key => value 
        map.put(TAG_PRODUCTS, id); 
        map.put(TAG_DATE, name); 

        // adding HashList to ArrayList 
        productsList.add(map); 
       } 
      }/** else { 
       // no products found 
       // Launch Add New product Activity 
       Intent i = new Intent(getApplicationContext(), NewProductActivity.class); 
       // Closing all previous activities 
       i.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP); 
       startActivity(i); 
      }**/ 
     } catch (JSONException e) { 
      e.printStackTrace(); 
     } 

     return null; 
    } 

    /** 
    * After completing background task Dismiss the progress dialog 
    * * 
    */ 
    protected void onPostExecute(String file_url) { 
     // dismiss the dialog after getting all products 
     pDialog.dismiss(); 
     // updating UI from Background Thread 
     runOnUiThread(new Runnable() { 
      public void run() { 
       /** 
       * Updating parsed JSON data into ListView 
       * */ 
       ListAdapter adapter = new SimpleAdapter(
         Delivery_info.this, productsList, 
         R.layout.list_item, new String[]{TAG_PRODUCTS, 
         TAG_DATE}, 
         new int[]{R.id.pid, R.id.name}); 
       // updating listview 
       setListAdapter(adapter); 
      } 
     }); 

    } 

} 

}

03-27 18:55:53.805 19554-19750/com.example.hul.hul E/AndroidRuntime﹕ FATAL EXCEPTION: AsyncTask #2 
    java.lang.RuntimeException: An error occured while executing doInBackground() 
      at android.os.AsyncTask$3.done(AsyncTask.java:299) 
      at java.util.concurrent.FutureTask.finishCompletion(FutureTask.java:352) 
      at java.util.concurrent.FutureTask.setException(FutureTask.java:219) 
      at java.util.concurrent.FutureTask.run(FutureTask.java:239) 
      at android.os.AsyncTask$SerialExecutor$1.run(AsyncTask.java:230) 
      at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1080) 
      at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:573) 
      at java.lang.Thread.run(Thread.java:841) 
    Caused by: java.lang.IllegalArgumentException: Host name may not be null 
      at org.apache.http.HttpHost.<init>(HttpHost.java:83) 
      at org.apache.http.impl.client.AbstractHttpClient.determineTarget(AbstractHttpClient.java:497) 
      at org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:487) 
      at org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:465) 
      at com.example.hul.hul.JSONParser.makeHttpRequest(JSONParser.java:63) 
      at com.example.hul.hul.Delivery_info$LoadAllProducts.doInBackground(Delivery_info.java:129) 
      at com.example.hul.hul.Delivery_info$LoadAllProducts.doInBackground(Delivery_info.java:107) 
      at android.os.AsyncTask$2.call(AsyncTask.java:287) 
      at java.util.concurrent.FutureTask.run(FutureTask.java:234) 
            at android.os.AsyncTask$SerialExecutor$1.run(AsyncTask.java:230) 
            at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1080) 
            at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:573) 
            at java.lang.Thread.run(Thread.java:841) 
03-27 18:55:54.065 19554-19554/com.example.hul.hul E/WindowManager﹕ Activity com.example.hul.hul.Delivery_info has leaked window com.android.internal.policy.impl.PhoneWindow$DecorView{4204c9d0 V.E..... R......D 0,0-684,192} that was originally added here 
    android.view.WindowLeaked: Activity com.example.hul.hul.Delivery_info has leaked window com.android.internal.policy.impl.PhoneWindow$DecorView{4204c9d0 V.E..... R......D 0,0-684,192} that was originally added here 
      at android.view.ViewRootImpl.<init>(ViewRootImpl.java:350) 
      at android.view.WindowManagerGlobal.addView(WindowManagerGlobal.java:239) 
      at android.view.WindowManagerImpl.addView(WindowManagerImpl.java:69) 
      at android.app.Dialog.show(Dialog.java:289) 
      at com.example.hul.hul.Delivery_info$LoadAllProducts.onPreExecute(Delivery_info.java:119) 
      at android.os.AsyncTask.executeOnExecutor(AsyncTask.java:586) 
      at android.os.AsyncTask.execute(AsyncTask.java:534) 
      at com.example.hul.hul.Delivery_info.onCreate(Delivery_info.java:59) 
      at android.app.Activity.performCreate(Activity.java:5133) 
      at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1087) 
      at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2230) 
      at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2316) 
      at android.app.ActivityThread.access$600(ActivityThread.java:150) 
      at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1298) 
      at android.os.Handler.dispatchMessage(Handler.java:99) 
      at android.os.Looper.loop(Looper.java:213) 
      at android.app.ActivityThread.main(ActivityThread.java:5225) 
      at java.lang.reflect.Method.invokeNative(Native Method) 
      at java.lang.reflect.Method.invoke(Method.java:525) 
      at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:741) 
      at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:557) 
      at dalvik.system.NativeStart.main(Native Method) 
03-27 19:07:07.163 21510-21529/com.example.hul.hul E/AndroidRuntime﹕ FATAL EXCEPTION: AsyncTask #1 
    java.lang.RuntimeException: An error occured while executing doInBackground() 
      at android.os.AsyncTask$3.done(AsyncTask.java:299) 
      at java.util.concurrent.FutureTask.finishCompletion(FutureTask.java:352) 
      at java.util.concurrent.FutureTask.setException(FutureTask.java:219) 
      at java.util.concurrent.FutureTask.run(FutureTask.java:239) 
      at android.os.AsyncTask$SerialExecutor$1.run(AsyncTask.java:230) 
      at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1080) 
      at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:573) 
      at java.lang.Thread.run(Thread.java:841) 
    Caused by: java.lang.IllegalArgumentException: Host name may not be null 
      at org.apache.http.HttpHost.<init>(HttpHost.java:83) 
      at org.apache.http.impl.client.AbstractHttpClient.determineTarget(AbstractHttpClient.java:497) 
      at org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:487) 
      at org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:465) 
      at com.example.hul.hul.JSONParser.makeHttpRequest(JSONParser.java:63) 
      at com.example.hul.hul.Delivery_info$LoadAllProducts.doInBackground(Delivery_info.java:129) 
      at com.example.hul.hul.Delivery_info$LoadAllProducts.doInBackground(Delivery_info.java:107) 
      at android.os.AsyncTask$2.call(AsyncTask.java:287) 
      at java.util.concurrent.FutureTask.run(FutureTask.java:234) 
            at android.os.AsyncTask$SerialExecutor$1.run(AsyncTask.java:230) 
            at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1080) 
            at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:573) 
            at java.lang.Thread.run(Thread.java:841) 
03-27 19:07:07.534 21510-21510/com.example.hul.hul E/WindowManager﹕ Activity com.example.hul.hul.Delivery_info has leaked window com.android.internal.policy.impl.PhoneWindow$DecorView{4204d2c0 V.E..... R......D 0,0-684,192} that was originally added here 
    android.view.WindowLeaked: Activity com.example.hul.hul.Delivery_info has leaked window com.android.internal.policy.impl.PhoneWindow$DecorView{4204d2c0 V.E..... R......D 0,0-684,192} that was originally added here 
      at android.view.ViewRootImpl.<init>(ViewRootImpl.java:350) 
      at android.view.WindowManagerGlobal.addView(WindowManagerGlobal.java:239) 
      at android.view.WindowManagerImpl.addView(WindowManagerImpl.java:69) 
      at android.app.Dialog.show(Dialog.java:289) 
      at com.example.hul.hul.Delivery_info$LoadAllProducts.onPreExecute(Delivery_info.java:119) 
      at android.os.AsyncTask.executeOnExecutor(AsyncTask.java:586) 
      at android.os.AsyncTask.execute(AsyncTask.java:534) 
      at com.example.hul.hul.Delivery_info.onCreate(Delivery_info.java:59) 
      at android.app.Activity.performCreate(Activity.java:5133) 
      at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1087) 
      at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2230) 
      at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2316) 
      at android.app.ActivityThread.access$600(ActivityThread.java:150) 
      at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1298) 
      at android.os.Handler.dispatchMessage(Handler.java:99) 
      at android.os.Looper.loop(Looper.java:213) 
      at android.app.ActivityThread.main(ActivityThread.java:5225) 
      at java.lang.reflect.Method.invokeNative(Native Method) 
      at java.lang.reflect.Method.invoke(Method.java:525) 
      at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:741) 
      at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:557) 
      at dalvik.system.NativeStart.main(Native Method) 

Answer 1

Sie haben 2 Ausgaben hier:

1- 127.0.0.1 sollte nicht auf mobilen verwendet werden, da es an den Server bezieht, die nicht das ist Mobil selbst. so ändern, dass die IP auf die tatsächliche IP-Adresse des Servers oder Testmaschine (wo xampp installiert ist)

2- Sie haben einen Fehler in der URL selbst (Tippfehler): fehlende / nach http:

private static String url_all_products = "http:/127.0.0.1/hul/get_all_products.php"; 

private static String url_all_products = "http://192.168.1.10/hul/get_all_products.php"; 

01:

sollte

private static String url_all_products = "http://127.0.0.1/hul/get_all_products.php"; 

so Ihre endgültige uRL sollte wie aussehen (Beispiel) sein

oder sogar ein Domain-Name:

private static String url_all_products = "http://my.api.domain/hul/get_all_products.php"; 

Answer 2

wenn die Service-Antwort in außen (PostMan) durchgeführt wird, dann müssen Sie in Java-Code überprüfen bedeutet Internet Permission in manifest.