code: @GetMapping("/setting/scan/{maxdeeplevel}")
      public void annotationScan(@PathVariable int maxdeeplevel, HttpServletRequest req, HttpServletResponse res) {
          this.validationSessionComponent.sessionCheck(req);
          this.msgSaver.annotationScan(maxdeeplevel);
      }
docs: Annotation scan.
  
  @param maxdeeplevel the maxdeeplevel
  @param req          the req
  @param res          the res