Опитвам се да публикувам данни на локалния хост сървър (WAMP) с помощта на API на HttpURLConnection. Приложих го с помощта на IntentService, но не знам как мога да предам данните "JSON низ" от MainActivity към класа DataPost.
Тази част се извиква от метода onLocationChanged във вътрешния клас "MyLocationListener" в MainActivity:
String jSONString = convertToJSON(pLong, pLat, formatted);
Intent intent3 = new Intent(MainActivity.this, PostData.class);
intent3.putExtra("json_data", jSONString);
PendingIntent pintent3 = PendingIntent.getService(getApplicationContext(), 0, intent3, 0);
AlarmManager alarm3 = (AlarmManager) getSystemService(Context.ALARM_SERVICE);
Calendar cal = Calendar.getInstance();
// for 30 mint 60*60*1000
alarm3.setRepeating(AlarmManager.RTC_WAKEUP, cal.getTimeInMillis(),
1000, pintent3);
startService(intent3);
Клас PostData:
package com.bustracker;
import java.io.DataOutputStream;
import java.io.IOException;
import java.net.HttpURLConnection;
import java.net.URL;
import android.app.IntentService;
import android.content.Intent;
import android.os.AsyncTask;
import android.os.Handler;
public class PostData extends IntentService {
String jSONString;
Handler handler = new Handler();
public PostData() {
super("some");
}
public String getjSONString() {
return jSONString;
}
public void setjSONString(String jSONString) {
this.jSONString = jSONString;
}
@Override
public int onStartCommand(Intent intent, int flags, int startId) {
return super.onStartCommand(intent, flags, startId);
}
@Override
protected void onHandleIntent(Intent intent) {
// TODO Auto-generated method stub
String jSONString = intent.getStringExtra("json_data");
try {
// This is the ip address of my laptop wifi because I am running the
// app in my device and I want to send the data to the localhost
// server(WAMP).
URL myUrl = new URL("http://192.168.x.x/webservice");
HttpURLConnection myConnection = (HttpURLConnection) myUrl
.openConnection();
myConnection.setRequestMethod("POST");
myConnection.setDoOutput(true);
myConnection.setUseCaches(false);
myConnection.setConnectTimeout(10000);
myConnection.setReadTimeout(10000);
myConnection.setRequestProperty("Content-Type", "application/json");
myConnection.connect();
// create data output stream
DataOutputStream wr = new DataOutputStream(
myConnection.getOutputStream());
// write to the output stream from the string
wr.writeBytes(jSONString);
wr.close();
} catch (IOException e) {
e.printStackTrace();
}
}
}