class TransferNoticeController extends AbstractCtrl {

    @Autowired private TransferOrderService transferOrderService;
    @Autowired private ConfigContextQueryService configContextQueryService;
    @Autowired private PayMchNotifyService payMchNotifyService;


    /** 异步回调入口 **/
    @ResponseBody
    @RequestMapping(value= {"/api/transfer/notify/{ifCode}", "/api/transfer/notify/{ifCode}/{transferId}"})
    public ResponseEntity doNotify(HttpServletRequest request, @PathVariable("ifCode") String ifCode, @PathVariable(value = "transferId", required = false) String urlOrderId){<FILL_FUNCTION_BODY>}

}


        String transferId = null;
        String logPrefix = "进入[" +ifCode+ "]转账回调：urlOrderId：["+ StringUtils.defaultIfEmpty(urlOrderId, "") + "] ";
        log.info("===== {} =====" , logPrefix);

        try {

            // 参数有误
            if(StringUtils.isEmpty(ifCode)){
                return ResponseEntity.badRequest().body("ifCode is empty");
            }

            //查询转账接口是否存在
            ITransferNoticeService transferNotifyService = SpringBeansUtil.getBean(ifCode + "TransferNoticeService", ITransferNoticeService.class);

            // 支付通道转账接口实现不存在
            if(transferNotifyService == null){
                log.error("{}, transfer interface not exists ", logPrefix);
                return ResponseEntity.badRequest().body("[" + ifCode + "] transfer interface not exists");
            }

            // 解析转账单号 和 请求参数
            MutablePair<String, Object> mutablePair = transferNotifyService.parseParams(request, urlOrderId);
            if(mutablePair == null){ // 解析数据失败， 响应已处理
                log.error("{}, mutablePair is null ", logPrefix);
                throw new BizException("解析数据异常！"); //需要实现类自行抛出ResponseException, 不应该在这抛此异常。
            }

            // 解析到转账单号
            transferId = mutablePair.left;
            log.info("{}, 解析数据为：transferId:{}, params:{}", logPrefix, transferId, mutablePair.getRight());

            // 获取转账单号 和 转账单数据
            TransferOrder transferOrder = transferOrderService.getById(transferId);

            // 转账单不存在
            if(transferOrder == null){
                log.error("{}, 转账单不存在. transferId={} ", logPrefix, transferId);
                return transferNotifyService.doNotifyOrderNotExists(request);
            }

            //查询出商户应用的配置信息
            MchAppConfigContext mchAppConfigContext = configContextQueryService.queryMchInfoAndAppInfo(transferOrder.getMchNo(), transferOrder.getAppId());

            //调起接口的回调判断
            ChannelRetMsg notifyResult = transferNotifyService.doNotice(request, mutablePair.getRight(), transferOrder, mchAppConfigContext);

            // 返回null 表明出现异常， 无需处理通知下游等操作。
            if(notifyResult == null || notifyResult.getChannelState() == null || notifyResult.getResponseEntity() == null){
                log.error("{}, 处理回调事件异常  notifyResult data error, notifyResult ={} ",logPrefix, notifyResult);
                throw new BizException("处理回调事件异常！"); //需要实现类自行抛出ResponseException, 不应该在这抛此异常。
            }

            // 转账单是 【转账中状态】
            if(transferOrder.getState() == TransferOrder.STATE_ING) {
                if(notifyResult.getChannelState() == ChannelRetMsg.ChannelState.CONFIRM_SUCCESS) {
                    // 转账成功
                    transferOrderService.updateIng2Success(transferId, notifyResult.getChannelOrderId());
                    payMchNotifyService.transferOrderNotify(transferOrderService.getById(transferId));

                }else if(notifyResult.getChannelState() == ChannelRetMsg.ChannelState.CONFIRM_FAIL){
                    // 转账失败
                    transferOrderService.updateIng2Fail(transferId, notifyResult.getChannelOrderId(), notifyResult.getChannelUserId(), notifyResult.getChannelErrCode());
                    payMchNotifyService.transferOrderNotify(transferOrderService.getById(transferId));
                }
            }

            log.info("===== {}, 转账单通知完成。 transferId={}, parseState = {} =====", logPrefix, transferId, notifyResult.getChannelState());

            return notifyResult.getResponseEntity();

        } catch (BizException e) {
            log.error("{}, transferId={}, BizException", logPrefix, transferId, e);
            return ResponseEntity.badRequest().body(e.getMessage());

        } catch (ResponseException e) {
            log.error("{}, transferId={}, ResponseException", logPrefix, transferId, e);
            return e.getResponseEntity();

        } catch (Exception e) {
            log.error("{}, transferId={}, 系统异常", logPrefix, transferId, e);
            return ResponseEntity.badRequest().body(e.getMessage());
        }
    
<methods>public non-sealed void <init>() ,public java.lang.Long getAmountL(java.lang.String) ,public java.lang.String getClientIp() ,public java.lang.Long getRequiredAmountL(java.lang.String) ,public java.lang.String getUserAgent() ,public transient void handleParamAmount(java.lang.String[]) ,public Map<java.lang.String,java.lang.Object> request2payResponseMap(HttpServletRequest, java.lang.String[]) <variables>private static final int DEFAULT_PAGE_INDEX,private static final int DEFAULT_PAGE_SIZE,private static final java.lang.String PAGE_INDEX_PARAM_NAME,private static final java.lang.String PAGE_SIZE_PARAM_NAME,private static final java.lang.String SORT_FIELD_PARAM_NAME,private static final java.lang.String SORT_ORDER_FLAG_PARAM_NAME,protected static final Logger logger,protected HttpServletRequest request,protected com.jeequan.jeepay.core.beans.RequestKitBean requestKitBean,protected HttpServletResponse response