import org.springframework.security.web.csrf.CsrfException; //导入依赖的package包/类
public void handle(HttpServletRequest request, HttpServletResponse response,
        AccessDeniedException accessDeniedException) throws IOException, ServletException {

    if (accessDeniedException instanceof CsrfException && !response.isCommitted()) {
        // Remove the session cookie so that client knows it's time to obtain a new CSRF token
        String pCookieName = "CSRF-TOKEN";
        Cookie cookie = new Cookie(pCookieName, "");
        cookie.setMaxAge(0);
        cookie.setHttpOnly(false);
        cookie.setPath("/");
        response.addCookie(cookie);
    }

    accessDeniedHandlerImpl.handle(request, response, accessDeniedException);
}
 

import org.springframework.security.web.csrf.CsrfException; //导入依赖的package包/类
@Override
public void handle(final HttpServletRequest request,
                   final HttpServletResponse response,
                   final AccessDeniedException ex) throws IOException {
    response.setStatus(HttpServletResponse.SC_FORBIDDEN);

    final boolean sessionExists = request.getSession(false) != null;

    if (ex instanceof MissingCsrfTokenException) {
        LOG.warn("Missing CSRF token for requestURI={} for user {} with session={} and message: {}",
                request.getRequestURI(), getActiveUserInfo(), sessionExists, ex.getMessage());

    } else if (ex instanceof CsrfException) {
        LOG.warn("Invalid CSRF token for requestURI={} for user {} with session={} and message: {}",
                request.getRequestURI(), getActiveUserInfo(), sessionExists, ex.getMessage());

    } else {
        LOG.warn("Access denied for requestURI={} for user {} with exception {} message: {}",
                request.getRequestURI(), getActiveUserInfo(), ex.getClass().getName(), ex.getMessage());
    }

    if (!response.isCommitted()) {
        response.setContentType("application/json");
        response.getWriter().print("{\"status\": \"FORBIDDEN\"}");
        response.getWriter().flush();
        response.getWriter().close();
    }
}
 

import org.springframework.security.web.csrf.CsrfException; //导入依赖的package包/类
@Bean
public AccessDeniedHandler accessDeniedHandler() {
    LinkedHashMap<Class<? extends AccessDeniedException>, AccessDeniedHandler> handlers = new LinkedHashMap<>();
    handlers.put(CsrfException.class, new CsrfTokenExceptionHandler());
    return new DelegatingAccessDeniedHandler(handlers, new AccessDeniedHandlerImpl());
}