攔截器返回false造成的跨域問題

因爲項目後端是重寫了WebMvcConfigurer，然後添加的跨域請求。添加攔截器之後，根據token信息返回狀態響應碼並且preHandle返回的是false。熟悉攔截器的可知，preHandle返回false後會終止請求，也就是說後面配置的跨域方法不起作用了，這也就造成了前端的跨域問題。所以需要在攔截器中配置跨域請求才能解決。
代碼如下：

public class TokenInterceptor implements HandlerInterceptor {

    @Override
    public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler) throws Exception {
        //從http請求頭中取出token
        String token = request.getHeader("Authorization");

        //如果不是方法級別的請求，則直接通過
        if (!(handler instanceof HandlerMethod)){
            return true;
        }

        //利用java反射獲取到請求的方法
        HandlerMethod handlerMethod = (HandlerMethod) handler;
        Method method = handlerMethod.getMethod();

        //如果方法添加了LoginToken註解
        if(method.isAnnotationPresent(LoginToken.class)){
            LoginToken loginToken = method.getAnnotation(LoginToken.class);
            if (loginToken.required()){
                //解決跨域問題
                response.addHeader("Access-Control-Allow-Origin", "*");
                response.addHeader("Access-Control-Allow-Methods", "GET, POST, PUT, DELETE, OPTIONS, HEAD");
                response.addHeader("Access-Control-Allow-Headers", "Content-Type, Authorization");
                response.addHeader("Access-Control-Max-Age", "3600");

                //未登錄
                if(token == null){
                    response.setStatus(401);
                    return false;
                }
                String uid = "";
                try {
                    uid = JWT.decode(token).getAudience().get(0);
                }catch (JWTDecodeException jd){
                    //token取數據出問題
                    response.setStatus(401);
                    return false;
                }

                //獲取用戶信息
                Users users = userService.findById(Integer.parseInt(uid));

                if (users == null){
                    //用戶不存在
                    response.setStatus(401);
                    return false;
                }

                String token1 = (String)valueOperations.get(token.split("\\.")[2]);
                //token過期(登錄過期)
                if (token1 == null){
                    response.setStatus(403);
                    return false;
                }
                //token錯誤(未登錄)
                if (!StringUtils.equals(token1,token)){
                    response.setStatus(401);
                    return false;
                }
            }
            return true;
        }
        return true;
    }

    @Override
    public void postHandle(HttpServletRequest request, HttpServletResponse response, Object handler, ModelAndView modelAndView) throws Exception {

    }

    @Override
    public void afterCompletion(HttpServletRequest request, HttpServletResponse response, Object handler, Exception ex) throws Exception {

    }
}