商城系统中30分钟未付款自动取消订单怎么实现(简单几种方法)

news2024/11/6 7:13:38

实现以上功能

方法1：定时任务批量执行

写一个定时任务，每隔 30分钟执行一次，列出所有超出时间范围得订单id的列表

@Async
    @Scheduled(cron = "20 20 1 * * ?")
    public void cancelOrder(){
        log.info("【取消订单任务开始】");
        QueryWrapper<Order> qw = new QueryWrapper<>();
        qw.eq("status", Constants.OrderStatus.NOTPAID);
        qw.eq("aftersale_status", 1);
        List<Order> orderList = orderMapper.selectList(qw);
        List<Long> idList = orderList.stream()
                .filter(order -> LocalDateTimeUtil.between(order.getCreateTime(), LocalDateTime.now()).toMinutes() >= 15)
                .map(Order::getId)
                .collect(Collectors.toList());
        CancelOrderRequest request = new CancelOrderRequest();
        request.setIdList(idList);
        h5OrderService.orderBatchCancel(request, null);
        log.info("【取消订单任务结束】");
    }

批量执行取消订单操作

@Transactional
    public String orderBatchCancel(CancelOrderRequest request, Long userId) {
        LocalDateTime optDate = LocalDateTime.now();
        if (CollectionUtil.isEmpty(request.getIdList())) {
            throw new RuntimeException("未指定需要取消的订单号");
        }
        QueryWrapper<Order> orderQw = new QueryWrapper<>();
        orderQw.in("id", request.getIdList());
        List<Order> orderList = orderMapper.selectList(orderQw);
        if (orderList.size() < request.getIdList().size()) {
            throw new RuntimeException("未查询到订单信息");
        }
        Order order = orderList.get(0);

        //查orderItem
        QueryWrapper<OrderItem> qw = new QueryWrapper<>();
        qw.in("order_id", request.getIdList());
        List<OrderItem> orderItems = orderItemMapper.selectList(qw);
        if (CollectionUtil.isEmpty(orderItems)) {
            throw new RuntimeException("未查询到订单信息");
        }
        long count = orderList.stream().filter(it -> !Constants.H5OrderStatus.UN_PAY.equals(it.getStatus())).count();
        if (count > 0) {
            throw new RuntimeException("订单状态已更新，请刷新页面");
        }
        List<OrderOperateHistory> addHistoryList = new ArrayList<>();
        orderList.forEach(item -> {
            item.setStatus(Constants.H5OrderStatus.CLOSED);
            item.setUpdateTime(optDate);
            item.setUpdateBy(userId);
            OrderOperateHistory history = new OrderOperateHistory();
            history.setOrderId(item.getId());
            history.setOrderSn(item.getOrderSn());
            history.setOperateMan(userId == null ? "后台管理员" : "" + item.getMemberId());
            history.setOrderStatus(Constants.H5OrderStatus.CLOSED);
            history.setCreateTime(optDate);
            history.setCreateBy(userId);
            history.setUpdateBy(userId);
            history.setUpdateTime(optDate);
            addHistoryList.add(history);
        });
        //取消订单
        int rows = orderMapper.cancelBatch(orderList);
        if (rows < 1) {
            throw new RuntimeException("更改订单状态失败");
        }
        orderItems.stream().collect(Collectors.groupingBy(it -> it.getSkuId())).forEach((k, v) -> {
            AtomicReference<Integer> totalCount = new AtomicReference<>(0);
            v.forEach(it -> totalCount.updateAndGet(v1 -> v1 + it.getQuantity()));
            skuMapper.updateStockById(k, optDate, -1 * totalCount.get());
        });
        //创建订单操作记录
        boolean flag = orderOperateHistoryService.saveBatch(addHistoryList);
        if (!flag) {
            throw new RuntimeException("创建订单操作记录失败");
        }
        // 根据order 退还积分
        orderUsePointsService.refundOrderUsePoints(order.getId());
        return "取消订单成功";
    }

方法2：使用jdk自带的阻塞队列

实现一个简单的队列，每隔一定时间执行队列。

/**
     * (30分钟扫描三十分钟内需要发送的订单)
     */
    @Scheduled(cron = "0 0/30 * * * ?")
    public void checkOrderStatus() {
        DelayQueue<ItemVo<Order>> queue = new DelayQueue<ItemVo<Order>>();
        try {
            // 插入订单
            new Thread(new PutOrder(queue)).start();

        } catch (Exception e) {
            e.printStackTrace();
        }

    }

这里使用队列的优势可以跟前端时间匹配上，前端读秒几秒这里就什么时候取消



import com.alibaba.fastjson.JSON;
import com.baomidou.mybatisplus.toolkit.CollectionUtils;
import com.kxmall.market.biz.BeanContext;
import com.kxmall.market.data.dto.PrivatePlanAndDetailDO;
import com.kxmall.market.data.mapper.PrivatePlanMapper;
import com.kxmall.market.data.util.DateUtil;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;

import java.util.Date;
import java.util.List;
import java.util.concurrent.DelayQueue;

/**
 * 模拟订单插入的功能
 */

public class PutOrder implements Runnable {

    private static final Logger logger = LoggerFactory.getLogger(PutOrder.class);

    //    public static PutOrder putOrder;
    @Autowired
    private PrivatePlanMapper privatePlanMapper;

    // 使用DelayQueue：一个使用优先级队列实现的无界阻塞队列。
    private DelayQueue<ItemVo<Order>> queue;

    public PutOrder(DelayQueue<ItemVo<Order>> queue) {
        super();
        this.queue = queue;
    }

    @Override
    public void run() {
        Date startTime = new Date();
        privatePlanMapper = BeanContext.getApplicationContext().getBean(PrivatePlanMapper.class);
        // 每隔半小时获取半小时内需要取消的
        List<PrivatePlanAndDetailDO> privatePlanDOS = privatePlanMapper.getPrivatePlanDetailList();
        logger.info("待取消清单->{}", JSON.toJSONString(privatePlanDOS));
        if (CollectionUtils.isNotEmpty(privatePlanDOS)) {
            privatePlanDOS.forEach(s -> {
                long count = DateUtil.calLastedTime(startTime,s.getTodoTime() )*1000;
                Order tbOrder = new Order(s.getId().toString(), 0.0);
                ItemVo<Order> itemVoTb = new ItemVo<Order>(count, tbOrder);
                queue.offer(itemVoTb);
                logger.info("订单{}将在->{}秒后取消", s.getId().toString(),count/1000);
            });
            // 取出过期订单的线程
            new Thread(new FetchOrder(queue)).start();
        }else {
            logger.info("没有待发送订单->");
        }
    }
}



import java.util.concurrent.Delayed;
import java.util.concurrent.TimeUnit;
/**
 * 存到队列里的元素
 * 支持延时获取的元素的阻塞队列，元素必须要实现Delayed接口。
 * 根据订单有效时间作为队列的优先级
 * @param <T>
 */
public class ItemVo<T> implements Delayed{
    // 到期时间 单位：ms
    private long activeTime;
    // 订单实体（使用泛型是因为后续扩展其他业务共用此业务类）
    private T data;

    public ItemVo(long activeTime, T data) {
        super();
        // 将传入的时间转换为超时的时刻
        this.activeTime = TimeUnit.NANOSECONDS.convert(activeTime, TimeUnit.MILLISECONDS)
                + System.nanoTime();
        this.data = data;
    }

    public long getActiveTime() {
        return activeTime;
    }
    public T getData() {
        return data;
    }

    // 按照剩余时间进行排序
    @Override
    public int compareTo(Delayed o) {
        // 订单剩余时间-当前传入的时间= 实际剩余时间（单位纳秒）
        long d = getDelay(TimeUnit.NANOSECONDS) - o.getDelay(TimeUnit.NANOSECONDS);
        // 根据剩余时间判断等于0 返回1 不等于0
        // 有可能大于0 有可能小于0  大于0返回1  小于返回-1
        return (d == 0) ? 0 : ((d > 0) ? 1 : -1);
    }

    // 获取剩余时间
    @Override
    public long getDelay(TimeUnit unit) {
        // 剩余时间= 到期时间-当前系统时间，系统一般是纳秒级的，所以这里做一次转换
        long d = unit.convert(activeTime-System.nanoTime(), TimeUnit.NANOSECONDS);
        return d;
    }

}