Как сохранять данные из html страницы в приложении Android?

@Entity
@Table(name = "univer")//название таблицы в бд
public class UniverDataSet {
    @Column(name="course")//название колонки в базе
    private String course;
    @Column(name="group")
    private String group;

    public UniverDataSet(String group, String course) {
        this.course = course;
        this.group = group;
    }
    //...getters
}

public class UniverDAO {
    private Executor executor;
    //...
    public String getTimeTable(long id) throws SQLException {
        PreparedStatement stmt = executor.execQuery(
                "select * from users where id = '" + id + "'",
                resultSet -> {
                        resultSet.next();
                        return resultSet.getString(1);
                }
        );
    }
}

class Executor {
    UsersDAO dao;
    //...

    public <T> T execQuery(String query, ResultHandler<T> handler) throws SQLException {
        PreparedStatement stmt = connection.preparedStatement(query);
        ResultSet resultSet = stmt.execute();
        T value = handler.handle(resultSet);
        resultSet.close();
        stmt.close();
        return value;
    }
}

interface ResultHandler {
    void handle(ResultSet resultSet) throws SQLException;
}