[v2] Spring 게시판 조금 알고 따라하기 - 끝

1. 인터셉터 구현

public class LoginInterceptor implements HandlerInterceptor {
    @Override
    public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler) throws Exception {
        System.out.println("프리핸들 동작-----------------------------------");

        return true;//false 면 컨트롤러 진입안됨
    }
}

public class LoginInterceptor implements HandlerInterceptor {
    @Override
    public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler) throws Exception {
         if (sessionUser == null) {
            throw new Exception401("인증되지 않았어요");
        }

        return true;//false 면 컨트롤러 진입안됨
    }
}

2. webConfig 설정

@Configuration
public class WebConfig implements WebMvcConfigurer {

    @Override
    public void addInterceptors(InterceptorRegistry registry) {
        registry.addInterceptor(new LoginInterceptor())
                .addPathPatterns("/user/**")
                .addPathPatterns("/board/**");
    }
}

public class WebConfig implements WebMvcConfigurer {

    @Override
    public void addInterceptors(InterceptorRegistry registry) {
        registry.addInterceptor(new LoginInterceptor())
                .addPathPatterns("/api/**");

    }
}

• 예외처리

     public DetailDTO(Board board, User sessionUser) {
            this.boardId = board.getId();
            this.title = board.getTitle();
            this.content = board.getContent();

            this.userId = board.getUser().getId();
            this.username = board.getUser().getUsername();

            this.isOwner = false;

            if (sessionUser != null) {
                if (board.getUser().getId() == sessionUser.getId()) {
                    isOwner = true;
                }
            }
            
        }