CallBack

@GetMapping(value = "/callbackOk")
    public void callBackOK(@RequestParam Map<String, String> params) {
        StringBuilder stringBuilder = new StringBuilder();
        for (String param : params.keySet()) {
            stringBuilder.append(String.format(" %s : %s ,",param,params.get(param)));
        }
        log.debug("CallbackOk"+stringBuilder.toString());
    }

    @GetMapping(value = "/callbackFail")
    public void callBackFail(@RequestParam Map<String, String> params) {
        StringBuilder stringBuilder = new StringBuilder();
        for (String param : params.keySet()) {
            stringBuilder.append(String.format(" %s : %s ,",param,params.get(param)));
        }
        log.debug("CallbackFail"+stringBuilder.toString());
    }