GPS原始经纬度转百度经纬度

 protected void runTest() throws Throwable {

     try {
         BaiduLocation bl = new BaiduLocation();
             bl.gpsx = ;//经度
             bl.gpsy = ;//纬度
             GetBaiduLocation(bl);
             if(bl.ok) {
                 int baidux = (int)(bl.baidux*1E6);
                 int baiduy = (int)(bl.baiduy*1E6);
                 // 转换成功，这个坐标是百度专用的
             }
             else {
                 /// 转换失败
             }
     }
     catch(Exception ex) {
     }
 }

 class BaiduLocation {
     public float gpsx, gpsy;
     public float baidux, baiduy;
     public boolean ok = false;
 }

 public static String GetBaiduLocation(float x, float y) throws MalformedURLException, IOException {
     String url = String.format("http://api.map.baidu.com/ag/coord/convert?from=0&to=4&x=%f&y=%f", x, y);
     HttpURLConnection urlConnection = (HttpURLConnection)(new URL(url).openConnection());
     urlConnection.connect();
     BufferedReader reader = new BufferedReader(new InputStreamReader(urlConnection.getInputStream()));
     String lines = reader.readLine();
     reader.close();
     urlConnection.disconnect();
     return lines;
 }   

 public static boolean GetBaiduLocation(BaiduLocation bl) {
     try {
         bl.ok = false;
         String res = GetBaiduLocation(bl.gpsx, bl.gpsy);
         if(res.startsWith("{") && res.endsWith("}")) {
             res = res.substring(, res.length() - ).replace("\"", "");
             String[] lines = res.split(",");
             for(String line : lines) {
                 String[] items = line.split(":");
                 if(items.length == ) {
                     if("error".equals(items[])) {
                         bl.ok = "".equals(items[]);
                     }
                     if("x".equals(items[])) {
                         bl.baidux = ConvertBase64(items[]);
                     }
                     if("y".equals(items[])) {
                         bl.baiduy = ConvertBase64(items[]);
                     }
                 }
             }
         }
     } catch (Exception e) {
         bl.ok = false;
     }
     return bl.ok;
 }
 private static float ConvertBase64(String str) {
     byte[] bs = Base64.decode(str);
     return Float.valueOf(new String(bs));
 }

经纬度转换接口http://map.yanue.net/gps.html

牛人主页：http://map.yanue.net/