im new at android and json. i want to post and return some data from android to my php using json.
我刚刚在android和json。我想发布并使用json将一些数据从android返回到我的php。
this is my php.
这是我的PHP。
<?php
$response = array();
include_once('C:\xampp\htdocs\RS\connection.php');
$latitude = $_POST['GPSlat'];
$longitude = $_POST['GPSlng'];
$result = mysql_query("SELECT nama_rs, telepon, lat, lng, ( 3959 * acos( cos( radians('$latitude') ) * cos( radians( lat ) ) * cos( radians( lng ) - radians('$longitude') ) + sin( radians('$latitude') ) * sin( radians( lat ) ) ) ) AS distance FROM datars HAVING distance < 2 ORDER BY distance LIMIT 0 , 1") or die(mysql_error());
if (mysql_num_rows($result) > 0) {
$response["peta_rs"] = array();
while ($row = mysql_fetch_array($result)) {
$peta_rs = array();
$peta_rs["nama"] = stripslashes($row["nama_rs"]);
$peta_rs["telepon_rs"] = stripslashes($row["telepon"]);
$peta_rs["lintang_rs"] = stripslashes($row["lat"]);
$peta_rs["bujur_rs"] = stripslashes($row["lng"]);
array_push($response["peta_rs"], $peta_rs);
}
$response["success"] = 1;
echo json_encode($response);
} else {
$response["success"] = 0;
$response["message"] = "error";
echo json_encode($response);
}
?>
if u see in my php code there is $latitude = $_POST['GPSlat'];$longitude = $_POST['GPSlng']; so i want get my latitude and longitude from android and send to GPSlat and GPSlng to execute the sql query and show it using json. is there any example or tutorial? thanks
如果你在我的PHP代码中看到有$ latitude = $ _POST ['GPSlat']; $ longitude = $ _POST ['GPSlng'];所以我想从android获取我的经度和经度并发送到GPSlat和GPSlng执行sql查询并使用json显示它。有没有任何示例或教程?谢谢
this is my android code
这是我的android代码
public class Callrs extends Activity {
private LocationManager locationManager;
private LocationListener locationListener;
private ProgressDialog pDialog;
JSONParser jParser = new JSONParser();
private static String url_peta_rs = "http://192.168.199.1/RS/callrs.php";
private static final String TAG_SUCCESS = "success";
private static final String TAG_PETA_RS = "peta_rs";
public static final String TAG_NAMA_RS = "nama";
public static final String TAG_TELEPON_RS = "telepon_rs";
public static final String TAG_LINTANG_RS = "lintang_rs";
public static final String TAG_BUJUR_RS = "bujur_rs";
final Location locationA = new Location("point A");
final Location locationB = new Location("point B");
ProgressDialog dialog;
JSONArray peta_rs = null;
private LocationManager locManager;
private LocationListener locListener;
private ArrayList<Telepon> list_fasilitas = new ArrayList<Telepon>();
ListenToPhoneState listener;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
CurrentLocation();
new Activity().execute();
}
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
super.onActivityResult(requestCode, resultCode, data);
if (resultCode == 100) {
Intent intent = getIntent();
finish();
startActivity(intent);
}
}
class Activity extends AsyncTask<String, String, String> {
@Override
protected void onPreExecute() {
super.onPreExecute();
pDialog = new ProgressDialog(Callrs.this);
pDialog.setMessage("Mohon tunggu...");
pDialog.setIndeterminate(false);
pDialog.setCancelable(false);
pDialog.show();
}
protected String doInBackground(String... args) {
postData();
List<NameValuePair> params = new ArrayList<NameValuePair>();
JSONObject json = jParser.makeHttpRequest(url_peta_rs,
"GET", params);
Log.d("peta_rs: ", json.toString());
try {
int success = json.getInt(TAG_SUCCESS);
if (success == 1) {
peta_rs = json.getJSONArray(TAG_PETA_RS);
for (int i = 0; i < peta_rs.length(); i++) {
JSONObject c = peta_rs.getJSONObject(i);
String nama_rs = c.getString(TAG_NAMA_RS);
String telepon_rs = c.getString(TAG_TELEPON_RS);
double lintang_rs = c.getDouble(TAG_LINTANG_RS);
double bujur_rs = c.getDouble(TAG_BUJUR_RS);
list_fasilitas.add(new Telepon(nama_rs,telepon_rs,
lintang_rs, bujur_rs));
}
} else {
}
} catch (JSONException e) {
e.printStackTrace();
}
return null;
}
protected void onPostExecute(String file_url) {
pDialog.dismiss();
}
}
public void CurrentLocation()
{
locationManager = (LocationManager) getSystemService(Context.LOCATION_SERVICE);
locationListener = new GPSLocationListener();
locationManager.requestLocationUpdates(
LocationManager.NETWORK_PROVIDER,
0,
0,
locationListener);
}
private class GPSLocationListener implements LocationListener
{
public void onLocationChanged(Location location) {
if (location != null) {
GeoPoint pointA = new GeoPoint(
(int) (location.getLatitude() * 1E6),
(int) (location.getLongitude() * 1E6));
locationA.setLatitude(pointA.getLatitudeE6() / 1E6);
locationA.setLongitude(pointA.getLongitudeE6() / 1E6);
Toast.makeText(getBaseContext(),
"Latitude: " + location.getLatitude() +
" Longitude: " + location.getLongitude(),
Toast.LENGTH_LONG).show();
/////////////////////
for (int i = 0; i < list_fasilitas.size(); i++) {
// transform the location to a geopoint
GeoPoint pointB = new GeoPoint(
(int) (list_fasilitas.get(i).lintang_rs * 1E6),
(int) (list_fasilitas.get(i).bujur_rs * 1E6));
locationB.setLatitude(pointB.getLatitudeE6() / 1E6);
locationB.setLongitude(pointB.getLongitudeE6() / 1E6);
DecimalFormat formatData = new DecimalFormat("#.#");
float distance = (float) locationA.distanceTo(locationB) / 1000;
String jarak;
jarak = String.valueOf(formatData.format(distance));
Toast.makeText(Callrs.this, ""+list_fasilitas.get(i).nama_rs, Toast.LENGTH_LONG).show();
try {
Intent callIntent = new Intent(Intent.ACTION_CALL);
callIntent.setData(Uri.parse("tel:"+list_fasilitas.get(i).telepon_rs));
startActivity(callIntent);
///
TelephonyManager tManager = (TelephonyManager)
getSystemService(Context.TELEPHONY_SERVICE);
listener = new ListenToPhoneState();
tManager.listen(listener, PhoneStateListener.LISTEN_CALL_STATE);
///
} catch (ActivityNotFoundException activityException) {
Log.e("dialing-example", "Call failed", activityException);
}
}
/////////////////////
}
}
public void onProviderDisabled(String provider) {
// TODO Auto-generated method stub
}
public void onProviderEnabled(String provider) {
// TODO Auto-generated method stub
}
public void onStatusChanged(String provider, int status, Bundle extras) {
// TODO Auto-generated method stub
}
}
public void postData() {
// Create a new HttpClient and Post Header
HttpClient httpclient = new DefaultHttpClient();
HttpPost httppost = new HttpPost("http://192.168.199.1/RS/callrs.php");
try {
// Add your data
List<NameValuePair> nameValuePairs = new ArrayList<NameValuePair>(2);
nameValuePairs.add(new BasicNameValuePair("GPSlat", "-7.772354"));
nameValuePairs.add(new BasicNameValuePair("GPSlng", "110.351565"));
httppost.setEntity(new UrlEncodedFormEntity(nameValuePairs));
// Execute HTTP Post Request
HttpResponse response = httpclient.execute(httppost);
HttpEntity entity = response.getEntity();
String res = EntityUtils.toString(entity);
} catch (ClientProtocolException e) {
// TODO Auto-generated catch block
} catch (IOException e) {
// TODO Auto-generated catch block
}
}
}
1 个解决方案
#1
0
Check out this.. Android: Server-client programming
看看这个.. Android:服务器 - 客户端编程
Here you can see the usage of NameValuePair for info passing. And also, the network operations must be in different thread, preferably in AsyncTask.
在这里,您可以看到NameValuePair用于信息传递的用法。而且,网络操作必须在不同的线程中,最好是在AsyncTask中。
#1
0
Check out this.. Android: Server-client programming
看看这个.. Android:服务器 - 客户端编程
Here you can see the usage of NameValuePair for info passing. And also, the network operations must be in different thread, preferably in AsyncTask.
在这里,您可以看到NameValuePair用于信息传递的用法。而且,网络操作必须在不同的线程中,最好是在AsyncTask中。