public boolean openConnection() {
        try {
            con = DriverManager.getConnection("jdbc:mysql://" + host + "/" + database + "?autoReconnect=true&useSSL=true",
                    username, password);
        } catch (SQLException e) {
            System.err.println("SQLException: " + e.getMessage());
            System.err.println("SQLState: " + e.getSQLState());
            System.err.println("VendorError: " + e.getErrorCode());
        }
        return true;
    }