Android获取基站坐标代码

package com.su.station;

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;

import org.apache.http.HttpEntity;
import org.apache.http.HttpResponse;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.entity.StringEntity;
import org.apache.http.impl.client.DefaultHttpClient;
import org.json.JSONArray;
import org.json.JSONObject;

import android.app.Activity;
import android.content.Context;
import android.location.Location;
import android.location.LocationManager;
import android.os.Bundle;
import android.telephony.TelephonyManager;
import android.telephony.gsm.GsmCellLocation;
import android.util.Log;
import android.widget.Toast;

public class TestStationLocationActivity extends Activity {
private static final String TAG = "TestStationLocationActivity";

/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
Location location = getportLocation();
location.getLongitude();
Toast.makeText(this, location.getLatitude()+location.getLatitude()+"", 100).show();

}

private Location getportLocation() {
Location loc = null ;
TelephonyManager tm = (TelephonyManager) getSystemService(Context.TELEPHONY_SERVICE);
BufferedReader br = null;
try
{
GsmCellLocation gcl = (GsmCellLocation) tm.getCellLocation();
if (null == gcl)
{
return null;
}
int cid = gcl.getCid();
int lac = gcl.getLac();
int mcc = Integer.valueOf(tm.getNetworkOperator().substring(0,3));
int mnc = Integer.valueOf(tm.getNetworkOperator().substring(3,5));
JSONObject holder = new JSONObject();
holder.put("version", "1.1.0");
holder.put("host", "maps.google.com");
holder.put("request_address", true);

JSONArray array = new JSONArray();
JSONObject data = new JSONObject();

data.put("cell_id", cid);
data.put("location_area_code", lac);
data.put("mobile_country_code", mcc);
data.put("mobile_network_code", mnc);
array.put(data);
holder.put("cell_towers", array);
DefaultHttpClient client = new DefaultHttpClient();
HttpPost post = new HttpPost("http://www.google.com/loc/json");
StringEntity se = new StringEntity(holder.toString());
post.setEntity(se);
HttpResponse resp = client.execute(post);
if (resp.getStatusLine().getStatusCode() == 200)
{
HttpEntity entity = resp.getEntity();
br = new BufferedReader(new InputStreamReader(entity.getContent()));
StringBuffer sb = new StringBuffer();
String result = br.readLine();
while (result != null)
{
sb.append(result);
result = br.readLine();
}

JSONObject data_ = new JSONObject(sb.toString());
data_ = (JSONObject) data_.get("location");
loc = new Location(LocationManager.NETWORK_PROVIDER);
loc.setLatitude((Double) data_.get("latitude"));
loc.setLongitude((Double) data_.get("longitude"));
Log.i(TAG, "latitude : " + loc.getLatitude() + "  longitude : " + loc.getLongitude());
return loc;
}
return null;

}

catch (Exception e)
{
android.util.Log.e(TAG, "network get the latitude and longitude ocurr Exception error", e);
}
finally
{
if (null != br)
{
try
{
br.close();
}
catch (IOException e)
{
android.util.Log.e(TAG, "network get the latitude and longitude when closed BufferedReader ocurr IOException error", e);
}
}
}
return loc;
}

}