添加购物车 重复bug

Cui Zhi Feng

2024-09-03 571a7d5b6321e0931b292bb33c0019f4264b2e78

 src/main/java/com/mzl/flower/service/payment/OrderService.java

@@ -43,6 +43,7 @@
import com.mzl.flower.service.flower.FlowerService;
import com.mzl.flower.service.menber.MemberGrowthRecordService;
import com.mzl.flower.service.point.CustomerPointService;
import com.mzl.flower.service.point.PointGoodsService;
import com.mzl.flower.service.system.CodeService;
import com.mzl.flower.service.system.WeChatService;
import com.mzl.flower.service.transport.TransportService;
@@ -147,47 +148,74 @@
    @Autowired
    private CustomerPointService customerPointService;

    @Autowired
    private PointGoodsService pointGoodsService;

    @Autowired
    private RedisLockService lockService;

    public void changeFlower2Cart(CartSaveDTO dto) {
        String userId = SecurityUtils.getUserId();
        Cart c = cartMapper.selectOne(new QueryWrapper<Cart>()
                .eq("create_by", userId).eq("flower_id", dto.getId()));
        if (c == null) {
            if (dto.getNum() <= 0) {
                throw new ValidationException("数量不能小于等于0,请刷新页面重试");
            }
            c = new Cart();
            c.setFlowerId(dto.getId());
            c.setNum(dto.getNum());
            c.create(userId);
        String key = userId + "_" + dto.getId();
        boolean lock = lockService.getObjectLock(RedisLockService.LOCK_KEY_CART_, key);
        if(!lock){
            return;
        }

            cartMapper.insert(c);
        } else {
            c.setNum(c.getNum() + dto.getNum());
            c.update(userId);
            if (c.getNum() <= 0) {
                cartMapper.deleteById(c.getId());
        try {
            Cart c = cartMapper.selectOne(new QueryWrapper<Cart>()
                    .eq("create_by", userId).eq("flower_id", dto.getId()));
            if (c == null) {
                if (dto.getNum() <= 0) {
                    throw new ValidationException("数量不能小于等于0,请刷新页面重试");
                }
                c = new Cart();
                c.setFlowerId(dto.getId());
                c.setNum(dto.getNum());
                c.create(userId);

                cartMapper.insert(c);
            } else {
                cartMapper.updateById(c);
                c.setNum(c.getNum() + dto.getNum());
                c.update(userId);
                if (c.getNum() <= 0) {
                    cartMapper.deleteById(c.getId());
                } else {
                    cartMapper.updateById(c);
                }
            }
        } finally {
            lockService.releaseObjectLock(RedisLockService.LOCK_KEY_CART_, key);
        }
    }

    public void saveFlower2Cart(CartSaveDTO dto) {
        String userId = SecurityUtils.getUserId();
        Cart c = cartMapper.selectOne(new QueryWrapper<Cart>()
                .eq("create_by", userId).eq("flower_id", dto.getId()));
        if (c == null) {
            c = new Cart();
            c.setFlowerId(dto.getId());
            c.setNum(dto.getNum());
            c.create(userId);

            cartMapper.insert(c);
        } else {
            c.setNum(dto.getNum());
            c.update(userId);
        String key = userId + "_" + dto.getId();
        boolean lock = lockService.getObjectLock(RedisLockService.LOCK_KEY_CART_, key);
        if(!lock){
            return;
        }

            cartMapper.updateById(c);
        try {
            Cart c = cartMapper.selectOne(new QueryWrapper<Cart>()
                    .eq("create_by", userId).eq("flower_id", dto.getId()));
            if (c == null) {
                c = new Cart();
                c.setFlowerId(dto.getId());
                c.setNum(dto.getNum());
                c.create(userId);

                cartMapper.insert(c);
            } else {
                c.setNum(dto.getNum());
                c.update(userId);

                cartMapper.updateById(c);
            }
        } finally {
            lockService.releaseObjectLock(RedisLockService.LOCK_KEY_CART_, key);
        }
    }

@@ -503,7 +531,12 @@
    }

    private void usePointGoods(String orderId, List<Long> goodsRecordIdList){
        //TODO 使用积分商品兑换券
        //使用积分商品兑换券
        if(goodsRecordIdList != null && goodsRecordIdList.size() > 0){
            for(Long grId : goodsRecordIdList){
                pointGoodsService.useExchangeGoods(grId, orderId);
            }
        }
    }

    /**
@@ -949,6 +982,9 @@

        if(checkList != null && checkList.size() > 0){
            for(OrderItemCheck c : checkList){
                if(Constants.CHECK_TYPE.replace.name().equals(c.getType())){
                    continue;
                }
                totalAmount = totalAmount.subtract(getAmount(c.getDeductAmount()));
            }
        }