1 pièce(s) jointe(s)
MySQL -> PHP -> JSON -> Android
Bonsoir,
Voilà j'ai une base de données qui contient cette table (image attachée).
J’ai ensuite créé ce script PHP qui permet d’interroger ma base de données.
Code:
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| <?php require_once "connect.php"; ?>
<?php
mysql_connect ($host,$user,$pass);
mysql_select_db ($db);
mysql_query("set names utf8");
$sql = "SELECT * FROM people WHERE birthyear>'".$_REQUEST['year']."'";
$result = mysql_query ($sql) or die(mysql_error());
while( $row = mysql_fetch_assoc ($result) ) {
print(json_encode($row));
}
mysql_close();
?> |
Ensuite via ce code JAVA:
Code:
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| package tarabbia.mySQL;
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.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.JSONException;
import org.json.JSONObject;
import android.app.Activity;
import android.os.Bundle;
import android.util.Log;
import android.widget.LinearLayout;
import android.widget.TextView;
public class Mains extends Activity {
/** Called when the activity is first created. */
TextView txt;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
// Create a crude view - this should really be set via the layout resources
// but since its an example saves declaring them in the XML.
LinearLayout rootLayout = new LinearLayout(getApplicationContext());
txt = new TextView(getApplicationContext());
rootLayout.addView(txt);
setContentView(rootLayout);
// Set the text and call the connect function.
txt.setText("Connecting...");
//call the method to run the data retreival
txt.setText(getServerData(KEY_121));
}
public static final String KEY_121 = "http://jonathantarabbia.cwebh.org/seance_09/index.php";
private String getServerData(String returnString) {
InputStream is = null;
String result = "";
//the year data to send
ArrayList<NameValuePair> nameValuePairs = new ArrayList<NameValuePair>();
nameValuePairs.add(new BasicNameValuePair("year","2010"));
//http post
try{
HttpClient httpclient = new DefaultHttpClient();
HttpPost httppost = new HttpPost(KEY_121);
httppost.setEntity(new UrlEncodedFormEntity(nameValuePairs));
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());
}
//convert response to 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 + "\n");
}
is.close();
result=sb.toString();
}catch(Exception e){
Log.e("log_tag", "Error converting result "+e.toString());
}
//parse json data
try{
JSONArray jArray = new JSONArray(result);
for(int i=0;i<jArray.length();i++){
JSONObject json_data = jArray.getJSONObject(i);
Log.i("log_tag","id: "+json_data.getInt("id")+
", name: "+json_data.getString("name")+
", sex: "+json_data.getInt("sex")+
", birthyear: "+json_data.getInt("birthyear")
);
//Get an output to the screen
returnString += "\n\t" + jArray.getJSONObject(i);
}
}catch(JSONException e){
Log.e("log_tag", "Error parsing data "+e.toString());
}
return returnString;
}
} |
je me connecte à ma page web via le protocole HTPP, puis je converti JSON pour les afficher dans le logcat sous le "tag".
Après teste, depuis mon androphone (samsung galaxy s), il arrive à se connecter à la page PHP puis la page renvoie cela :
Code:
{"id":"1","name":"john","sex":"0","birthyear":"20"}{"id":"2","name":"toto","sex":"0","birthyear":"10"}{"id":"20","name":"john","sex":"0","birthyear":"20"}
Mais lors de l'affichage dans mon logcat il me met une erreur de parsing (image attachée).
Source code : https://sites.google.com/site/jtarabbia/fichiers
Merci
John
