@WebService(serviceName = "ServicioWebDetalles")
public class ServicioWebDetalles {


@WebMethod(operationName = "DetallesArticulo")
public Articulo DetallesArticulo(@WebParam(name = "cod") String cod) {
    Articulo art = null;
    Conexion con = new Conexion();
    Statement stm = null;
    ResultSet rs = null;
    try {
        stm = con.conectar().createStatement();
        rs = stm.executeQuery("SELECT * FROM articulos WHERE codigo = '" + cod + "'");
        if (rs.next())
            art = new Articulo(cod, rs.getString("nombre"), rs.getString("descripcion"), rs.getInt("cantidad"), rs.getDouble("precio"));
    }
    catch (ClassNotFoundException | SQLException | NullPointerException e){
        System.out.println("servicios.ServicioWebDetalles.DetallesArticulo(): " + e.getMessage());
    }
    return art;
}
}

public class Conexion {

private Connection con = null;

public Connection conectar() throws ClassNotFoundException, SQLException {
    try {
        Class.forName("com.mysql.jdbc.Driver");
        String url = "jdbc:mysql://localhost:3306/muebleriabd";
        con = (Connection) DriverManager.getConnection(url, "root", "root");
    }
    catch(ClassNotFoundException | SQLException e){
        System.out.println("BaseDatos.Conexion.conectar(): " + e.getMessage());
    }
    return con;
}

public void cerrarConexion() throws SQLException{
    con.close();
}
}

public class MainActivity extends AppCompatActivity {

private Button btnScan;
private String url = "http://192.168.1.45:8080/WebServiceMP";
private String methodName = "ServicioWebDetalles";
private String nameSpace = "http://servicios/";
private String soapAction = "http://servicios/ServicioWebDetalles";

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);

    btnScan = (Button) findViewById(R.id.btn_QR);
    final Activity activity = this;
    btnScan.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View view) {
            IntentIntegrator integrator = new IntentIntegrator(activity);
            integrator.setDesiredBarcodeFormats(IntentIntegrator.QR_CODE_TYPES);
            integrator.setPrompt("Scan");
            integrator.setCameraId(0);
            integrator.setBeepEnabled(false);
            integrator.setBarcodeImageEnabled(false);
            integrator.initiateScan();
        }
    });
}

@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
    IntentResult result = IntentIntegrator.parseActivityResult(requestCode, resultCode, data);
    if (result != null){
        if (result.getContents() == null){
            Toast.makeText(this, "Cancelado", Toast.LENGTH_LONG).show();
        }
        else {
            // Manejo el resultado del scaneo con result
            String cod = result.getContents();

            SoapObject request = new SoapObject(nameSpace, methodName);
            request.addProperty("codigo", cod);
            SoapSerializationEnvelope envelope = new SoapSerializationEnvelope(SoapEnvelope.VER12);
            envelope.setOutputSoapObject(request);
            HttpTransportSE transporte = new HttpTransportSE(url);
            try {
                transporte.call(soapAction, envelope);
                SoapObject resultado = (SoapObject) envelope.getResponse();
                Toast.makeText(this, "Llego", Toast.LENGTH_LONG).show();
            } catch (HttpResponseException e) {
                Log.d("CREATION", e.getMessage());
            } catch (XmlPullParserException e) {
                e.printStackTrace();
            } catch (IOException e) {
                e.printStackTrace();
            }
        }
    }
    else {
        super.onActivityResult(requestCode, resultCode, data);
    }
}
}