Android通过基站获取地理位置

     /**

* 获取基站信息

* @return

* @throws Exception

*/

public SCell getCellInfo() throws Exception {

SCell cell = new SCell();

TelephonyManager mTelNet = (TelephonyManager) getSystemService(Context.TELEPHONY_SERVICE);

GsmCellLocation location = (GsmCellLocation) mTelNet.getCellLocation();

if (location == null)

throw new Exception("基站信息为空");

String operator = mTelNet.getNetworkOperator();

int mcc = Integer.parseInt(operator.substring(0, 3));

int mnc = Integer.parseInt(operator.substring(3));

int cid = location.getCid();

int lac = location.getLac();

cell.MCC = mcc;

cell.MNC = mnc;

cell.LAC = lac;

cell.CID = cid;

return cell;

}

/**

* 通过基站信息获取经纬度

* @param cell

* @return

* @throws Exception

*/

private SItude getItude(SCell cell) throws Exception {

SItude itude = new SItude();

HttpClient client = new DefaultHttpClient();

HttpPost post = new HttpPost("http://www.google.com/loc/json");

try {

JSONObject holder = new JSONObject();

holder.put("version", "1.1.0");

holder.put("host", "maps.google.com");

holder.put("address_language", "zh_CN");

holder.put("request_address", true);

holder.put("radio_type", "gsm");

holder.put("carrier", "HTC");

JSONObject tower = new JSONObject();

tower.put("mobile_country_code", cell.MCC);

tower.put("mobile_network_code", cell.MNC);

tower.put("cell_id", cell.CID);

tower.put("location_area_code", cell.LAC);

JSONArray towerarray = new JSONArray();

towerarray.put(tower);

holder.put("cell_towers", towerarray);

StringEntity query = new StringEntity(holder.toString());

post.setEntity(query);

HttpResponse response = client.execute(post);

HttpEntity entity = response.getEntity();

BufferedReader buffReader = new BufferedReader(

new InputStreamReader(entity.getContent()));

StringBuffer strBuff = new StringBuffer();

String result = null;

while ((result = buffReader.readLine()) != null) {

strBuff.append(result);

}

JSONObject json = new JSONObject(strBuff.toString());

JSONObject subjosn = new JSONObject(json.getString("location"));

itude.latitude = subjosn.getString("latitude");

itude.longitude = subjosn.getString("longitude");

Log.i("Itude", itude.latitude + itude.longitude);

} catch (Exception e) {

Log.e(e.getMessage(), e.toString());

throw new Exception("" + e.getMessage());

} finally {

post.abort();

client = null;

}

return itude;

}

/**

* 通过经纬度到Google map上获取地理位置

* @param itude

* @return

* @throws Exception

*/

private String getLocation(SItude itude) throws Exception {

String resultString = "";

String urlString = String.format(

"http://maps.google.cn/maps/geo?key=abcdefg&q=%s,%s",

itude.latitude, itude.longitude);

Log.i("URL", urlString);

HttpClient client = new DefaultHttpClient();

HttpGet get = new HttpGet(urlString);

try {

HttpResponse response = client.execute(get);

HttpEntity entity = response.getEntity();

BufferedReader buffReader = new BufferedReader(

new InputStreamReader(entity.getContent()));

StringBuffer strBuff = new StringBuffer();

String result = null;

while ((result = buffReader.readLine()) != null) {

strBuff.append(result);

}

resultString = strBuff.toString();

if (resultString != null && resultString.length() > 0) {

JSONObject jsonobject = new JSONObject(resultString);

JSONArray jsonArray = new JSONArray(jsonobject.get("Placemark")

.toString());

resultString = "";

for (int i = 0; i < jsonArray.length(); i++) {

resultString = jsonArray.getJSONObject(i).getString(

"address");

}

}

} catch (Exception e) {

throw new Exception("sd:" + e.getMessage());

} finally {

get.abort();

client = null;

}

return resultString;

}

public class SCell {

public int MCC;

public int MNC;

public int LAC;

public int CID;

}

public class SItude {

public String latitude;

public String longitude;

}