From 5feb2085f70f764d2a44dff707a3f57fa5fb306f Mon Sep 17 00:00:00 2001
From: 无关风月 <443237572@qq.com>
Date: 星期三, 19 六月 2024 15:27:00 +0800
Subject: [PATCH] bug修改
---
ruoyi-service/ruoyi-goods/src/main/java/com/ruoyi/goods/service/impl/TGoodsServiceImpl.java | 233 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
1 files changed, 233 insertions(+), 0 deletions(-)
diff --git a/ruoyi-service/ruoyi-goods/src/main/java/com/ruoyi/goods/service/impl/TGoodsServiceImpl.java b/ruoyi-service/ruoyi-goods/src/main/java/com/ruoyi/goods/service/impl/TGoodsServiceImpl.java
index 834cdda..f978336 100644
--- a/ruoyi-service/ruoyi-goods/src/main/java/com/ruoyi/goods/service/impl/TGoodsServiceImpl.java
+++ b/ruoyi-service/ruoyi-goods/src/main/java/com/ruoyi/goods/service/impl/TGoodsServiceImpl.java
@@ -1,10 +1,34 @@
package com.ruoyi.goods.service.impl;
import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
+import com.ruoyi.common.core.constant.Constants;
+import com.ruoyi.common.core.constant.RedisConstants;
+import com.ruoyi.common.core.domain.R;
+import com.ruoyi.common.core.exception.GlobalException;
+import com.ruoyi.common.security.service.TokenService;
+import com.ruoyi.goods.domain.Recipient;
import com.ruoyi.goods.domain.TGoods;
+import com.ruoyi.goods.domain.TOrder;
+import com.ruoyi.goods.dto.GoodExchangeDTO;
import com.ruoyi.goods.mapper.TGoodsMapper;
import com.ruoyi.goods.service.ITGoodsService;
+import com.ruoyi.goods.service.ITOrderService;
+import com.ruoyi.goods.vo.GoodDetailVO;
+import com.ruoyi.goods.vo.TGoodsVO;
+import com.ruoyi.study.api.domain.TUser;
+import com.ruoyi.study.api.feignClient.StudyClient;
+import com.ruoyi.study.api.vo.UserPersonalCenterVO;
+import com.ruoyi.system.api.model.LoginUserParent;
+import org.redisson.api.RSemaphore;
+import org.redisson.api.RedissonClient;
import org.springframework.stereotype.Service;
+import org.springframework.transaction.annotation.Transactional;
+
+import javax.annotation.Resource;
+import java.util.Date;
+import java.util.List;
+import java.util.concurrent.TimeUnit;
+import java.util.stream.Collectors;
/**
* <p>
@@ -17,4 +41,213 @@
@Service
public class TGoodsServiceImpl extends ServiceImpl<TGoodsMapper, TGoods> implements ITGoodsService {
+ @Resource
+ private RedissonClient redissonClient;
+ @Resource
+ private StudyClient studyClient;
+ @Resource
+ private ITOrderService orderService;
+ @Resource
+ private TokenService tokenService;
+
+ @Override
+ public List<TGoodsVO> goodRecommend(Integer userId) {
+ return baseMapper.goodRecommend(userId);
+ }
+
+ @Override
+ public GoodDetailVO redeemNow(String goodId, Recipient recipient) {
+ // 商品详情
+ TGoods goods = lambdaQuery().eq(TGoods::getId, goodId).one();
+ if (null == goods) {
+ throw new GlobalException("商品不存在！");
+ }
+ // 商品总数量为 null，可无限兑换，不需要分布式锁进行控制
+ if (null != goods.getTotal()) {
+ // 库存预热，redisson分布式锁
+ String key = String.format(RedisConstants.GOOD_STOCK, goods.getId());
+ List<TOrder> orderList = orderService.lambdaQuery().eq(TOrder::getGoodsId, goodId)
+ .eq(TOrder::getDisabled, 0).list();
+ int sum = orderList.stream().map(TOrder::getCount).mapToInt(Integer::intValue).sum();
+ // 计算商品剩余可兑换数量
+ int number = goods.getTotal() - sum;
+ if (number <= 0) {
+ throw new GlobalException("商品可兑换数量不足！");
+ }
+ // redisson分布式锁
+ RSemaphore semaphore = redissonClient.getSemaphore(key);
+ semaphore.trySetPermits(goods.getSurplus());
+ semaphore.expire(Constants.SIXTY, TimeUnit.MINUTES);
+ }
+ return new GoodDetailVO(goods, recipient);
+ }
+
+ @Override
+ @Transactional(rollbackFor = Exception.class)
+ public R<String> goodExchange(GoodExchangeDTO goodExchange, Recipient recipient) {
+ Integer number = goodExchange.getNumber();
+ Integer goodId = goodExchange.getGoodId();
+ TGoods good = lambdaQuery().eq(TGoods::getId, goodId).one();
+ if (null == good) {
+ return R.exchangeError("商品不存在，请稍后重试！");
+ }
+ // 校验用户积分是否足够兑换
+ UserPersonalCenterVO userPersonalCenter = studyClient.userInfo().getData();
+ if (null == userPersonalCenter) {
+ throw new GlobalException("用户信息获取失败！");
+ }
+ TUser user = userPersonalCenter.getUser();
+ int needIntegral = good.getIntegral() * number;
+ if (user.getIntegral() < needIntegral) {
+ return R.exchangeError("兑换失败，当前剩余积分不足！");
+ }
+ if (null != good.getTotal()) {
+ // 检查用户兑换数量是否超过单用户最大兑换数量
+ List<TOrder> orderList = orderService.lambdaQuery().eq(TOrder::getUserId, user.getId())
+ .eq(TOrder::getGoodsId, goodId).list();
+ // 该商品订单为空、订单数量未超过商品的单个用户兑换上限数量时，可以进行兑换
+ int totalNumber = orderList.stream().map(TOrder::getCount).collect(Collectors.toList())
+ .stream().mapToInt(Integer::intValue).sum();
+ boolean canExchange = orderList.isEmpty() || null == good.getUserCount() ||
+ (totalNumber + number) <= good.getUserCount();
+ if (!canExchange) {
+ return R.exchangeError("兑换失败，当前兑换数量已超过最大兑换数量，剩余兑换数量为: " +
+ (good.getUserCount() - totalNumber) + "！");
+ }
+ // redisson分布式锁，防止超卖
+ String key = String.format(RedisConstants.GOOD_STOCK, good.getId());
+ RSemaphore semaphore = redissonClient.getSemaphore(key);
+ // 请求超时时间 单位：毫秒
+ semaphore.trySetPermits(1000);
+ boolean tried = semaphore.tryAcquire(number);
+ // 兑换失败，库存不足
+ if (!tried) {
+ semaphore.release(number);
+ return R.exchangeError("当前商品库存不足");
+ }
+ // 兑换成功，生成订单信息、生成积分明细(积分明细需要远程调用rouyi-study服务)
+ boolean result = exchangeGood(goodExchange, recipient, number, goodId, needIntegral);
+ // 扣除库存
+ result = result && this.lambdaUpdate().set(TGoods::getTotal, good.getTotal() - number)
+ .eq(TGoods::getId, good.getId()).update();
+ if (!result) {
+ semaphore.release(number);
+ return R.exchangeError("商品兑换失败！");
+ }
+ } else {
+ boolean result = exchangeGood(goodExchange, recipient, number, goodId, needIntegral);
+ if (!result) {
+ return R.exchangeError("商品兑换失败！");
+ }
+ }
+ return R.ok();
+ }
+
+ private Boolean exchangeGood(GoodExchangeDTO goodExchange, Recipient recipient, Integer number,
+ Integer goodId, int needIntegral) {
+ // 兑换成功，生成订单信息、生成积分明细(积分明细需要远程调用rouyi-study服务)
+ TOrder order = orderInfo(goodExchange, recipient, number, goodId, needIntegral);
+ boolean result = orderService.save(order);
+ // 远程调用，生成积分明细
+ result = result && studyClient.addIntegralDetail(Constants.BURDEN + needIntegral, Constants.SHOPPING_CONSUME).getData();
+ // 扣除用户积分
+ result = result && studyClient.exchangeIntegral(needIntegral, Constants.BURDEN).getData();
+ return result;
+ }
+
+ @Override
+ @Transactional(rollbackFor = Exception.class)
+ public R goodExchange1(GoodExchangeDTO goodExchange, Recipient recipient) {
+ Integer number = goodExchange.getNumber();
+ Integer goodId = goodExchange.getGoodId();
+ TGoods good = this.getById(goodId);
+ if (null == good) {
+ return R.exchangeError("商品不存在，请稍后重试！");
+ }
+ LoginUserParent loginUser1 = tokenService.getLoginUser1();
+ if (null == loginUser1){
+ return R.tokenError("登录失效");
+ }
+ // 校验用户积分是否足够兑换
+ TUser user = studyClient.userInfoParent().getData();
+ if (null == user) {
+ throw new GlobalException("用户信息获取失败！");
+ }
+ int needIntegral = good.getIntegral() * number;
+ if (user.getIntegral() < needIntegral) {
+ return R.exchangeError("兑换失败，当前剩余积分不足！");
+ }
+ if (null != good.getTotal()) {
+ // 检查用户兑换数量是否超过单用户最大兑换数量
+ List<TOrder> orderList = orderService.lambdaQuery().eq(TOrder::getUserId, user.getId())
+ .eq(TOrder::getGoodsId, goodId).list();
+ // 该商品订单为空、订单数量未超过商品的单个用户兑换上限数量时，可以进行兑换
+ int totalNumber = orderList.stream().map(TOrder::getCount).collect(Collectors.toList())
+ .stream().mapToInt(Integer::intValue).sum();
+ boolean canExchange = orderList.isEmpty() || null == good.getUserCount() ||
+ (totalNumber + number) <= good.getUserCount();
+ if (!canExchange) {
+ return R.exchangeError("兑换失败，当前兑换数量已超过最大兑换数量，剩余兑换数量为: " +
+ (good.getUserCount() - totalNumber) + "！");
+ }
+ // redisson分布式锁，防止超卖
+ String key = String.format(RedisConstants.GOOD_STOCK, good.getId());
+ RSemaphore semaphore = redissonClient.getSemaphore(key);
+ // 请求超时时间 单位：毫秒
+ semaphore.trySetPermits(1000);
+ boolean tried = semaphore.tryAcquire(number);
+ // 兑换失败，库存不足
+ if (!tried) {
+ semaphore.release(number);
+ return R.exchangeError("当前商品库存不足");
+ }
+ // 兑换成功，生成订单信息、生成积分明细(积分明细需要远程调用rouyi-study服务)
+ boolean result = exchangeGood(goodExchange, recipient, number, goodId, needIntegral);
+ // 扣除库存
+ result = result && this.lambdaUpdate().set(TGoods::getTotal, good.getTotal() - number)
+ .eq(TGoods::getId, good.getId()).update();
+ if (!result) {
+ semaphore.release(number);
+ return R.exchangeError("商品兑换失败！");
+ }
+ } else {
+ boolean result = exchangeGood(goodExchange, recipient, number, goodId, needIntegral);
+ if (!result) {
+ return R.exchangeError("商品兑换失败！");
+ }
+ }
+ return R.ok();
+ }
+
+ private TOrder orderInfo(GoodExchangeDTO goodExchange, Recipient recipient, Integer number, Integer goodId, int needIntegral) {
+ TOrder order = new TOrder();
+ order.setOrderNumber(goodExchange.getOrderNumber());
+ order.setUserId(tokenService.getLoginUserStudy().getUserid());
+ order.setInsertTime(new Date());
+ order.setGoodsId(goodId);
+ order.setCount(number);
+ order.setState(1);
+ order.setIntegral(needIntegral);
+ order.setConsigneeName(recipient.getRecipient());
+ order.setConsigneePhone(recipient.getRecipientPhone());
+ order.setConsigneeAddress(recipient.getAddress());
+ order.setDisabled(Boolean.FALSE);
+ return order;
+ }
+
+ private TOrder orderInfo1(GoodExchangeDTO goodExchange, Recipient recipient, Integer number, Integer goodId, int needIntegral) {
+ TOrder order = new TOrder();
+ order.setOrderNumber(goodExchange.getOrderNumber());
+ order.setUserId(tokenService.getLoginUser1().getUserid());
+ order.setInsertTime(new Date());
+ order.setGoodsId(goodId);
+ order.setCount(number);
+ order.setState(1);
+ order.setIntegral(needIntegral);
+ order.setConsigneeName(recipient.getRecipient());
+ order.setConsigneePhone(recipient.getRecipientPhone());
+ order.setConsigneeAddress(recipient.getAddress());
+ order.setDisabled(Boolean.FALSE);
+ return order;
+ }
}
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