404 Error when trying to connect view page (jsp) - model-view-controller

Question

Hello guys,
I'm a seriously beginner has been learning Back-end development for 3 months.
and i have quick question! please help me.
I was trying to connect Controller to View page using MVC pattern.
but 404 error has occurred. what should i do....please help me
[controller]
#WebServlet("*.rv")
public class ReviewFrontController extends HttpServlet {
protected void doProcess(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
System.out.println(" Store - doProcess()");
// 1. 가상주소 계산
String requestURI = request.getRequestURI();
System.out.println(" C : requestURI : " + requestURI);
String ctxPath = request.getContextPath();
System.out.println(" C : ctxPath : " + ctxPath);
String command = requestURI.substring(ctxPath.length());
System.out.println(" C : command : " + command);
System.out.println(" C : 1. 가상주소 계산 끝 \n");
Action action = null;
ActionForward forward = null;
if (command.equals("/ReviewWrite.rv")) {
forward = new ActionForward();
forward.setPath("./review/reviewWrite.jsp");
forward.setRedirect(false);
} else if (command.equals("/ReviewWriteAction.rv")) {
System.out.println(" C : /ReviewWriteAction.rv 호출 ");
System.out.println(" C : [패턴2] DB사용 O, 페이지 이동(화면전환)");
action = new ReviewWriteAction();
try {
forward = action.execute(request, response);
} catch (Exception e) {
e.printStackTrace();
}
} // ReviewWriteAction.rv
System.out.println(" C : 2. 가상주소 매핑 끝 \n");
// 3. 페이지 이동
if(forward != null) {
if(forward.isRedirect()) { // true
System.out.println(" C : sendRedirect() : " + forward.getPath());
response.sendRedirect(forward.getPath());
}else { // false
System.out.println(" C : forward() : " + forward.getPath());
RequestDispatcher dis = request.getRequestDispatcher(forward.getPath());
dis.forward(request, response);
}
}
System.out.println(" C : 3. 페이지 이동 끝 \n");
}
#Override
protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
System.out.println(" Store - doGet()");
doProcess(request, response);
}
#Override
protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
System.out.println(" Store - doPost()");
doProcess(request, response);
}
}
[ReviewWriteAction]
public class ReviewWriteAction implements Action {
#Override
public ActionForward execute(HttpServletRequest request,
HttpServletResponse response) throws Exception {
Long s_no = Long.parseLong(request.getParameter("s_no"));
ReviewDTO dto = new ReviewDTO();
// BoardDAO 객체
ReviewDAO dao = new ReviewDAO();
// insertBoard()
dao.insertReview(dto);
// 페이지 이동정보 생성(티켓 생성)
ActionForward forward = new ActionForward();
forward.setPath("./ReviewList.rv");
forward.setRedirect(true);
return forward;
}
}
[index.jsp]
response.sendRedirect("./ReviewWrite.rv");
i want to connect view page and controller.
and i want to know what's problem in above codes.
Thank you so much!