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POprobleme with AsyncTask: execute
 

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  1. POprobleme with AsyncTask: execute
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    <p>I tried to use <code>AsyncTask</code> object to connect my application to a remote server. Here's my code:</p> <pre><code>public class ConnectServer extends AsyncTask&lt;Void, Void, Void&gt; { String IP = ""; InputStream is = null; JSONObject json_data = null; ArrayList&lt;NameValuePair&gt; nameValuePairs = new ArrayList&lt;NameValuePair&gt;(); ArrayList&lt;String&gt; donnees = new ArrayList&lt;String&gt;(); @Override protected Void doInBackground( Void... params ) { // TODO Auto-generated method stub IP = "http://192.168.101.1/fichier.php"; nameValuePairs.add( new BasicNameValuePair( "nom", envois.nom ) ); nameValuePairs.add( new BasicNameValuePair( "prenom", envois.prenom ) ); nameValuePairs.add( new BasicNameValuePair( "nationalite", envois.nationalite ) ); nameValuePairs.add( new BasicNameValuePair( "passeport", envois.passeport ) ); try { //commandes httpClient HttpClient httpclient = new DefaultHttpClient(); HttpPost httppost = new HttpPost( IP ); httppost.setEntity( new UrlEncodedFormEntity( nameValuePairs ) ); HttpResponse response = httpclient.execute( httppost ); HttpEntity entity = response.getEntity(); is = entity.getContent(); Log.i( "tag", "depuis json" ); } catch (Exception e) { Log.i( "taghttppost", "" + e.toString() ); Toast.makeText( c, e.toString(), Toast.LENGTH_LONG ).show(); } return null; } @Override protected void onPreExecute() { // TODO Auto-generated method stub super.onPreExecute(); } @Override protected void onPostExecute( Void result ) { // TODO Auto-generated method stub super.onPostExecute( result ); Toast.makeText( getApplicationContext(), "fin d'envoi", Toast.LENGTH_SHORT ).show(); } } </code></pre> <p>Then when i try to call start that task, in my <code>onClick()</code> method, like this:</p> <pre><code>public void onClick( View v ) { // TODO Auto-generated method stub ConnectServer cs = new ConnectServer(); cs.execute( (Void) null ); } </code></pre> <p>It doesn't work. I debug it with eclipse, i am sure that the error come from this line:</p> <pre><code>cs.execute((Void)null); </code></pre> <p>I try to replace it by </p> <pre><code>cs.execute(); </code></pre> <p>But the error persists. The debbuger gives me something like:</p> <pre><code>Thread [&lt;10&gt; AsyncTask #1] (Suspended (exception RuntimeException)) ThreadPoolExecutor.runWorker(ThreadPoolExecutor$Worker) line: 1086 ThreadPoolExecutor$Worker.run() line: 561 Thread.run() line: 1096 Thread [&lt;12&gt; AsyncTask #2] (Running) </code></pre> <p>I want to add that my code works perfectly when I use it without <code>AsyncTask</code>.</p>
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    1. USJason Robinson
    1. USsofo
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      1. VTUpMod
    1. COWhy do you have to strings for the ip, in the global variable you have it equal to nothing.
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      1. USTheBlueCat
    2. COTheBluCat, i have just initialyze the IP, but that is not the problem, becauz it worked with this when i removed AsyncTask
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      1. USsofo
 

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