优化兑换商品

gongzuming

2024-09-10 a4f08f38caa261ab103f71c5fde9400381143fbb

优化兑换商品

 src/main/java/com/mzl/flower/service/point/PointGoodsService.java

@@ -18,6 +18,7 @@
import com.mzl.flower.mapper.point.PointGoodsMapper;
import com.mzl.flower.mapper.point.PointGoodsRecordMapper;
import com.mzl.flower.service.BaseService;
import com.mzl.flower.service.payment.RedisLockService;
import com.mzl.flower.utils.UUIDGenerator;
import org.springframework.beans.BeanUtils;
import org.springframework.beans.factory.annotation.Autowired;
@@ -43,6 +44,9 @@
    @Autowired
    private CustomerPointDetailMapper customerPointDetailMapper;


    @Autowired
    private RedisLockService lockService;

    public Long addPointGoods(PointGoodsCreateDTO dto){
        PointGoods p = new PointGoods();
@@ -117,57 +121,69 @@
        }
    }

    public synchronized void exchangeGoods(ExchangeGoodsDTO dto) {
        PointGoods p = pointGoodsMapper.selectById(dto.getGoodsId());
        if(p == null){
            throw new ValidationException("商品未找到");
    public void exchangeGoods(ExchangeGoodsDTO dto) {
        String key="EXCHANGE_GOODS:"+dto.getGoodsId()+":"+SecurityUtils.getUserId();
        boolean lock = lockService.getObjectLock(key, "");
        if(!lock){
            throw new ValidationException("系统操作频繁，请稍后重试");
        }
        if(!Constants.POINT_GOODS_STATUS.A.name().equals(p.getStatus())){
            throw new ValidationException("商品未上架");
        }
        if(p.getStock()< dto.getNum()){
            throw new ValidationException("商品库存不足");
        }
        CustomerPoint cp = customerPointMapper.selectOne(new LambdaQueryWrapper<CustomerPoint>()
                .eq(CustomerPoint::getUserId, SecurityUtils.getUserId()));
        if(cp == null || (cp.getTotalPoint()-cp.getUsedPoint()-cp.getExpiredPoint()) < p.getPoint() * dto.getNum()){
            throw new ValidationException("积分不足");
        }
        //记录兑换记录
        PointGoodsRecord record = new PointGoodsRecord();
        record.setUserId(SecurityUtils.getUserId());
        record.setCustomerId(getCustomerByUserId(SecurityUtils.getUserId()).getId());
        record.setGoodsId(dto.getGoodsId());
        record.setNum(dto.getNum());
        record.setPoint(p.getPoint());
        record.setName(p.getName());
        record.setPictures(p.getPictures());
        record.setDescription(p.getDescription());
        record.setTotalPoint(p.getPoint() * dto.getNum());
        record.setCover(p.getCover());
        record.setRedeemCode(UUIDGenerator.getUUID());
        record.setStatus(Constants.POINT_GOODS_RECORD_STATUS.A.name());//未使用
        pointGoodsRecordMapper.insert(record);
        try {
            PointGoods p = pointGoodsMapper.selectById(dto.getGoodsId());
            if(p == null){
                throw new ValidationException("商品未找到");
            }
            if(!Constants.POINT_GOODS_STATUS.A.name().equals(p.getStatus())){
                throw new ValidationException("商品未上架");
            }
            if(p.getStock()< dto.getNum()){
                throw new ValidationException("商品库存不足");
            }
            CustomerPoint cp = customerPointMapper.selectOne(new LambdaQueryWrapper<CustomerPoint>()
                    .eq(CustomerPoint::getUserId, SecurityUtils.getUserId()));
            if(cp == null || (cp.getTotalPoint()-cp.getUsedPoint()-cp.getExpiredPoint()) < p.getPoint() * dto.getNum()){
                throw new ValidationException("积分不足");
            }
            //记录兑换记录
            PointGoodsRecord record = new PointGoodsRecord();
            record.setUserId(SecurityUtils.getUserId());
            record.setCustomerId(getCustomerByUserId(SecurityUtils.getUserId()).getId());
            record.setGoodsId(dto.getGoodsId());
            record.setNum(dto.getNum());
            record.setPoint(p.getPoint());
            record.setName(p.getName());
            record.setPictures(p.getPictures());
            record.setDescription(p.getDescription());
            record.setTotalPoint(p.getPoint() * dto.getNum());
            record.setCover(p.getCover());
            record.setRedeemCode(UUIDGenerator.getUUID());
            record.setStatus(Constants.POINT_GOODS_RECORD_STATUS.A.name());//未使用
            pointGoodsRecordMapper.insert(record);

        //更新积分汇总
        cp.setUsedPoint(cp.getUsedPoint()+record.getTotalPoint());
        customerPointMapper.updateById(cp);
            //更新积分汇总
            cp.setUsedPoint(cp.getUsedPoint()+record.getTotalPoint());
            customerPointMapper.updateById(cp);

        //记录积分明细
        CustomerPointDetail detail = new CustomerPointDetail();
        detail.setUserId(SecurityUtils.getUserId());
        detail.setCustomerId(record.getCustomerId());
        detail.setPoint(record.getTotalPoint());
        detail.setChangeType(Constants.POINT_CHANGE_TYPE.reduce.name());
        detail.setType(Constants.POINT_TYPE.exchange.name());
        detail.setRecordDate(LocalDate.now());
        detail.setRemarks(record.getName());
        detail.create(SecurityUtils.getUserId());
        customerPointDetailMapper.insert(detail);
            //记录积分明细
            CustomerPointDetail detail = new CustomerPointDetail();
            detail.setUserId(SecurityUtils.getUserId());
            detail.setCustomerId(record.getCustomerId());
            detail.setPoint(record.getTotalPoint());
            detail.setChangeType(Constants.POINT_CHANGE_TYPE.reduce.name());
            detail.setType(Constants.POINT_TYPE.exchange.name());
            detail.setRecordDate(LocalDate.now());
            detail.setRemarks(record.getName());
            detail.create(SecurityUtils.getUserId());
            customerPointDetailMapper.insert(detail);

        //更新库存
        p.setStock(p.getStock()- dto.getNum());
        pointGoodsMapper.updateById(p);
            //更新库存
            p.setStock(p.getStock()- dto.getNum());
            pointGoodsMapper.updateById(p);
        }catch (Exception e){
            throw new ValidationException("兑换失败");
        }finally {
            lockService.releaseObjectLock(key,"");
        }

    }

    public Page<PointGoodsRecordDTO> myExchangeGoods(QueryExchangeGoodsDTO dto, Page page) {