@Override
    public String getOne(String strTabla, String strCampo, int id) throws Exception {
        Statement oStatement;
        ResultSet oResultSet;
        try {
            oStatement = (Statement) oConexionMySQL.createStatement();
            String strSQL = "SELECT " + strCampo + " FROM " + strTabla + " WHERE id=" + Integer.toString(id);
            oResultSet = oStatement.executeQuery(strSQL);
            if (oResultSet.next()) {
                return oResultSet.getString(strCampo);
            } else {
                return null;
            }

        } catch (SQLException ex) {
            throw new Exception("mysql.getOne: No se ha podido realizar la consulta: " + ex.getMessage());
        }
    }