可以使用Redis的setnx命令来解决 @Override public void processOrder(Map<String, Object> plainTextMap) { String orderNo = (String) plainTextMap.get("out_trade_no"); try { TimeUnit.SECONDS.sleep(10); } catch (InterruptedException e) { e.printStackTrace(); } Boolean isFlag = redisTemplate.opsForValue().setIfAbsent(orderNo, "已支付"); log.info("还没修改~~~"); if (isFlag) { //修改订单支付成功 log.info("修改订单状态"); QueryWrapper<OrderInfo> queryWrapper = new QueryWrapper<>(); queryWrapper.eq("order_no", orderNo); OrderInfo orderInfo = new OrderInfo(); orderInfo.setOrderStatus(OrderStatus.SUCCESS.getType()); baseMapper.update(orderInfo, queryWrapper); //记录支付日志 paymentInfoService.createPaymentInfo(plainTextMap); String redisKey = (String) plainTextMap.get("attach"); redisTemplate.delete(redisKey); } }