1、提供一个发送mq服务
@RequestMapping("/api/mq/rabbit")
public interface RabbitMqApiService {
@RequestMapping("/sendMq")
ResponseBO sendMq(RabbitCallBackBO rabbitCallBackBO);
}
2、在创建订单后,发送mq消息,这里很关键的地方是设置发送的延迟时间
RabbitCallBackBO rabbitCallBackBO = new RabbitCallBackBO();
rabbitCallBackBO.setCallBackHttpUrl("http://www.yyjunheng.com/client/task/order/timeout/cancel");
rabbitCallBackBO.setParams("{\"orderId\":" + order.getId() + "}");
rabbitCallBackBO.setMessageType(2);
rabbitCallBackBO.setDelayMillisecond(Long.valueOf(delayTime));//这里设置的延迟时间比如30分钟,30分钟后回调用http://www.yyjunheng.com/client/task/order/timeout/cancel
rabbitCallBackBO.setRouterKey("order.cancel");
rabbitCallBackBO.setExchangeName("exchange_business");
rabbitCallBackBO.setResultValue("code");
rabbitCallBackBO.setResultCode(0);
rabbitCallBackBO.setContentType(1);
rabbitCallBackBO.setHttpMethod(1);
String resultVO = HttpUtil.getInstance().postWithJson("http://www.yyjunheng.com/api/mq/rabbit/sendMq", JSON.toJSONString(rabbitCallBackBO));
3、提供一个取消订单的服务,就是上面mq消息的回调
@RequestMapping("/client/task")
public interface HealthTaskApiService {
/**
* 30分钟未支付订单 更新 为 取消订单 (门店下单 还原库存)
*/
@GetMapping("/order/timeout/cancel")
ResponseVO cancelTimeOutOrder(String orderId, HttpServletRequest request);
实现
@Override
public ResponseVO updateForCancelOrder(String orderId, HttpServletRequest request) {
HealthOrder order = healthOrderDao.getUniqueOrder(orderId);
//这个判断很重要,30分钟的回调回来如果订单不是待支付状态则不能取消订单,否则取消订单
if (order == null || OrderStateConstant.ARREARAGE_ORDER.getStatusId() != order.getStatusId()) {
throw new BusinessException(ErrorMsg.BillException.BIll_INFO_ERROR, false);
}
order.setStatusId(OrderStateConstant.CANCEL_ORDER.getStatusId());
//业务代码....
}