Android：将MainActivity中内部类的数据传递给Service类

Question

我试图借助HttpURLConnection api将数据发布到localhost服务器（WAMP）。我在IntentService的帮助下实现了它。目前，我正面临jSONString onHandleIntent中没有任何问题的问题。 我感谢任何帮助。

这个部分是从内部类＆＃34; MyLocationListener＆＃34;中的onLocationChanged方法调用的。在MainActivity中：

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);

PostData类：

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;


public class PostData extends IntentService {


    public PostData() {
        super("some");

    }


    @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();
        }

    }

}