///client
String data = mEmail + ':' + mPassword; Gson gson = new Gson();
Socket socket = new Socket("10.0.2.2", 9090);
BufferedReader in = new BufferedReader(new InputStreamReader(socket.getInputStream()));
BufferedWriter out = new BufferedWriter(new OutputStreamWriter(socket.getOutputStream()));

JsonReader reader = new JsonReader(in);
JsonWriter writer = new JsonWriter(out);

gson.toJson(data, String.class, writer);


////////////////////////////server
                    BufferedReader in = new BufferedReader(new InputStreamReader(socket.getInputStream()));
                    BufferedWriter out = new BufferedWriter(new OutputStreamWriter(socket.getOutputStream()));

                    JsonReader reader = new JsonReader(in);
                    JsonWriter writer = new JsonWriter(out);
                    String fromJson = null;

                        if (socket.isConnected()){
                            conn = DriverManager.getConnection("jdbc:mysql://localhost/mobilki", "root", "");
                        }
                        fromJson = gson.fromJson(reader, String.class);