Erreur "java.lang.NullPointerException"
Bonjour,
J'obtiens une erreur NullPointerException mais je n'arrive pas à localiser d'où elle vient...
Voici mon code :
Code:
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| package com.androidhive.dashboard;
import android.app.Activity;
import android.os.Bundle;
import androidhive.dashboard.R;
import java.io.BufferedReader;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.util.ArrayList;
import org.apache.http.HttpEntity;
import org.apache.http.HttpResponse;
import org.apache.http.client.HttpClient;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.impl.client.DefaultHttpClient;
import org.json.JSONArray;
import org.json.JSONException;
import org.json.JSONObject;
import android.util.Log;
import android.widget.ListView;
public class PlacesActivity extends Activity {
ListView L;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.places_layout);
final ArrayList<Article> Produits = new ArrayList <Article> ();
final String strURL = "http://192.168.1.74/test/stock.php";
InputStream is = null;
String result=null;
try{
HttpClient httpclient = new DefaultHttpClient();
HttpPost httppost = new HttpPost(strURL);
HttpResponse response = httpclient.execute(httppost);
HttpEntity entity = response.getEntity();
is = entity.getContent();
}catch(Exception e){
Log.e("log_tag", "Error in http connection " + e.toString());
}
// Convertion de la requête en string
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);
}
is.close();
result=sb.toString();
}catch(Exception e){
Log.e("log_tag", "Error converting result " + e.toString());
}
// Parse les données JSON
try{
JSONArray jArray = new JSONArray(result);
for(int i=0;i<jArray.length();i++){
JSONObject json_data = jArray.getJSONObject(i);
Produits.add(new Article(json_data.getString("pid"),json_data.getString("CodArt"),json_data.getString("LibArt"),json_data.getString("PrixTTC")));
}
}catch(JSONException e){
Log.e("log_tag", "Error parsing data " + e.toString());
}
L=(ListView)findViewById(R.id.list);
final AdapterS adapter =new AdapterS(this,Produits);
L.setAdapter(adapter);
}
} |
et ceci mon code php :
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| <?php
require 'FastJSON.class.php';
$db = mssql_connect('HPWALID', '', '');
$ret = mssql_select_db('Focus', $db);
$sql=mssql_query("SELECT pid, CodArt, LibArt, PrixTTC FROM TabStock");
while($row=mssql_fetch_array($sql))
$output[]=$row;
$var = FastJSON::encode($output);
print($var);
?> |
Quelqu'un saurait-indiquer d'où peut venir le problème ?
Merci d'avance pour votre aide.
