Java EE use request and response in init()

Is there any way to override the init method in a servlet, so just when the servlet loads, redirects to a webpage?

public void init(HttpServletRequest request, HttpServletResponse response) {

    try {
        ICommand _command = (ICommand) Class.forName("Clases.FwdDisk").newInstance();
        _command.initPage(request, response);
        String _enlace = _command.execute(request, response);
        request.getSession().setAttribute("principal", _enlace);

        request.getRequestDispatcher("/index.jsp").forward(request, response);
    } catch (Exception e) {
        System.out.println(e);
    }
}

I really need to use request and response in init...