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;
	}

}