From 9bcc40d213a44498c46dae5e678e592b918b40b0 Mon Sep 17 00:00:00 2001
From: rentaiming <806181062@qq.com>
Date: 星期四, 30 五月 2024 18:33:54 +0800
Subject: [PATCH] Merge remote-tracking branch 'origin/master'

---
 ruoyi-modules/ruoyi-goods/src/main/java/com/ruoyi/goods/service/impl/GoodsSeckillServiceImpl.java |  189 ++++++++++++++++-------------------------------
 1 files changed, 64 insertions(+), 125 deletions(-)

diff --git a/ruoyi-modules/ruoyi-goods/src/main/java/com/ruoyi/goods/service/impl/GoodsSeckillServiceImpl.java b/ruoyi-modules/ruoyi-goods/src/main/java/com/ruoyi/goods/service/impl/GoodsSeckillServiceImpl.java
index b41c374..6a9ff24 100644
--- a/ruoyi-modules/ruoyi-goods/src/main/java/com/ruoyi/goods/service/impl/GoodsSeckillServiceImpl.java
+++ b/ruoyi-modules/ruoyi-goods/src/main/java/com/ruoyi/goods/service/impl/GoodsSeckillServiceImpl.java
@@ -2,36 +2,42 @@
 
 import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
 import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
+import com.fasterxml.jackson.core.JsonProcessingException;
+import com.fasterxml.jackson.databind.ObjectMapper;
 import com.ruoyi.common.core.constant.CacheConstants;
+import com.ruoyi.common.core.constant.SecurityConstants;
+import com.ruoyi.common.core.enums.ListingStatusEnum;
 import com.ruoyi.common.core.enums.StartStatusEnum;
+import com.ruoyi.common.core.exception.ServiceException;
 import com.ruoyi.common.core.utils.StringUtils;
 import com.ruoyi.common.core.utils.page.BeanUtils;
 import com.ruoyi.common.core.utils.page.PageDTO;
 import com.ruoyi.common.redis.service.RedisService;
-import com.ruoyi.goods.controller.management.DTO.GoodsSeckillDTO;
-import com.ruoyi.goods.controller.management.DTO.GoodsSeckillQuery;
-import com.ruoyi.goods.controller.management.DTO.GoodsSeckillUpd;
-import com.ruoyi.goods.controller.management.VO.GoodsSeckillVO;
+import com.ruoyi.goods.controller.management.dto.GoodsSeckillDTO;
+import com.ruoyi.goods.controller.management.dto.GoodsSeckillQuery;
+import com.ruoyi.goods.controller.management.dto.GoodsSeckillUpd;
+import com.ruoyi.goods.controller.management.vo.GoodsSeckillVO;
 import com.ruoyi.goods.mapper.GoodsSeckillMapper;
 import com.ruoyi.goods.service.IGoodsSeckillService;
 import com.ruoyi.goods.service.IGoodsSkuService;
+import com.ruoyi.goods.service.async.AsyncMethodService;
 import com.ruoyi.system.api.constants.DelayTaskEnum;
-import com.ruoyi.system.api.domain.DelayTask;
+import com.ruoyi.system.api.constants.NotificationTypeConstant;
 import com.ruoyi.system.api.domain.GoodsSeckill;
 import com.ruoyi.system.api.domain.GoodsSku;
 import com.ruoyi.system.api.domain.dto.ListStatusDTO;
 import com.ruoyi.system.api.feignClient.OrderClient;
 import com.ruoyi.system.api.feignClient.SysUserClient;
-import java.time.Duration;
 import java.time.LocalDateTime;
 import java.util.List;
+import java.util.Map;
 import java.util.Optional;
-import java.util.concurrent.TimeUnit;
+import java.util.concurrent.ConcurrentHashMap;
 import lombok.RequiredArgsConstructor;
 import lombok.extern.slf4j.Slf4j;
-import org.redisson.api.RedissonClient;
 import org.springframework.stereotype.Service;
 import org.springframework.transaction.annotation.Transactional;
+import util.WebSocketUsers;
 
 /**
  * <p>
@@ -50,8 +56,9 @@
     private final OrderClient orderClient;
     private final RedisService redisService;
     private final SysUserClient sysUserClient;
-    private final RedissonClient redissonClient;
-
+    private final AsyncMethodService asyncMethodService;
+    // 创建一个静态共享的ObjectMapper实例以重用
+    private static final ObjectMapper objectMapper = new ObjectMapper();
     @Override
     @Transactional(rollbackFor = Exception.class)
     public void addGoodsSeckill(GoodsSeckillDTO dto) {
@@ -67,117 +74,19 @@
         this.saveBatch(goodsSeckills);
 
         for (GoodsSeckill goodsSeckill : goodsSeckills) {
-            LocalDateTime startTime = goodsSeckill.getStartTime();
-            LocalDateTime endTime = goodsSeckill.getEndTime();
-            LocalDateTime checkTime = LocalDateTime.now().plusHours(1);
-            //秒杀在一小时内开始
-            if (checkTime.isAfter(startTime)) {
-                Long id = goodsSeckill.getId();
-                LocalDateTime now = LocalDateTime.now();
-                String seckillStartTaskKey = DelayTaskEnum.SECKILL_START_TASK.getCode() + "-" + id;
-                //秒杀已经开始
-                if (now.isAfter(startTime)) {
-                    //查询延时任务
-                    DelayTask startDelayTask = sysUserClient.getDelayTask(
-                            seckillStartTaskKey).getData();
-                    if (StringUtils.isNull(startDelayTask)) {
-                        redisService.setCacheObject(
-                                seckillStartTaskKey,
-                                startTime, 3L, TimeUnit.SECONDS);
-                        startDelayTask = new DelayTask();
-                        startDelayTask.setDelFlag(0);
-                        startDelayTask.setCreateTime(LocalDateTime.now());
-                        startDelayTask.setEndTime(LocalDateTime.now().plusSeconds(3));
-                        startDelayTask.setRedisKey(
-                                seckillStartTaskKey);
-                        sysUserClient.addDelayTask(startDelayTask);
-                    } else {
-                        if (!startDelayTask.getEndTime().isEqual(startTime)) {
-                            sysUserClient.deleteDelayTask(
-                                    seckillStartTaskKey);
-                            redisService.deleteObject(
-                                    seckillStartTaskKey);
-                            redisService.setCacheObject(
-                                    seckillStartTaskKey,
-                                    startTime, 3L, TimeUnit.SECONDS);
-                            startDelayTask = new DelayTask();
-                            startDelayTask.setDelFlag(0);
-                            startDelayTask.setCreateTime(LocalDateTime.now());
-                            startDelayTask.setEndTime(LocalDateTime.now().plusSeconds(3));
-                            startDelayTask.setRedisKey(
-                                    seckillStartTaskKey);
-                            sysUserClient.addDelayTask(startDelayTask);
-                        }
-                    }
-                } else {
-                    DelayTask startDelayTask = sysUserClient.getDelayTask(
-                            seckillStartTaskKey).getData();
-                    Duration duration = Duration.between(LocalDateTime.now(), startTime);
-
-                    if (StringUtils.isNull(startDelayTask)) {
-                        redisService.setCacheObject(
-                                seckillStartTaskKey,
-                                startTime, duration.toMillis(), TimeUnit.MILLISECONDS);
-                        startDelayTask = new DelayTask();
-                        startDelayTask.setDelFlag(0);
-                        startDelayTask.setCreateTime(LocalDateTime.now());
-                        startDelayTask.setEndTime(startTime);
-                        startDelayTask.setRedisKey(
-                                seckillStartTaskKey);
-                        sysUserClient.addDelayTask(startDelayTask);
-                    } else {
-                        if (!startDelayTask.getEndTime().isEqual(startTime)) {
-                            sysUserClient.deleteDelayTask(
-                                    seckillStartTaskKey);
-                            redisService.deleteObject(
-                                    seckillStartTaskKey);
-                            redisService.setCacheObject(
-                                    seckillStartTaskKey,
-                                    startTime, duration.toMillis(), TimeUnit.MILLISECONDS);
-                            startDelayTask = new DelayTask();
-                            startDelayTask.setDelFlag(0);
-                            startDelayTask.setCreateTime(LocalDateTime.now());
-                            startDelayTask.setEndTime(startTime);
-                            startDelayTask.setRedisKey(
-                                    seckillStartTaskKey);
-                            sysUserClient.addDelayTask(startDelayTask);
-                        }
-                    }
-                }
-                String seckillEndTaskKey = DelayTaskEnum.SECKILL_END_TASK.getCode() + "-" + id;
-                DelayTask endDelayTask = sysUserClient.getDelayTask(
-                        seckillEndTaskKey).getData();
-                // 如果延时任务为空,创建延时任务控制活动定时开始和结束
-                if (StringUtils.isNull(endDelayTask)) {
-                    Duration duration = Duration.between(LocalDateTime.now(), endTime);
-                    redisService.setCacheObject(
-                            seckillEndTaskKey,
-                            endTime, duration.toMillis(), TimeUnit.MILLISECONDS);
-                    endDelayTask = new DelayTask();
-                    endDelayTask.setDelFlag(0);
-                    endDelayTask.setCreateTime(LocalDateTime.now());
-                    endDelayTask.setEndTime(endTime);
-                    endDelayTask.setRedisKey(seckillEndTaskKey);
-                    sysUserClient.addDelayTask(endDelayTask);
-                } else {
-                    Duration duration = Duration.between(LocalDateTime.now(), endTime);
-                    if (!endDelayTask.getEndTime().isEqual(endTime)) {
-                        sysUserClient.deleteDelayTask(seckillEndTaskKey);
-                        redisService.deleteObject(seckillEndTaskKey);
-                        redisService.setCacheObject(
-                                seckillEndTaskKey,
-                                endTime, duration.toMillis(), TimeUnit.MILLISECONDS);
-                        endDelayTask = new DelayTask();
-                        endDelayTask.setDelFlag(0);
-                        endDelayTask.setCreateTime(LocalDateTime.now());
-                        endDelayTask.setEndTime(endTime);
-                        endDelayTask.setRedisKey(seckillEndTaskKey);
-                        sysUserClient.addDelayTask(endDelayTask);
-                    }
-                }
+            GoodsSku goodsSku = goodsSkuService.getById(goodsSeckill.getGoodsSkuId());
+            if (StringUtils.isNull(goodsSku)) {
+                throw new ServiceException("商品不存在");
             }
+            Integer seckillStock = goodsSeckill.getSeckillStock();
+            goodsSkuService.lambdaUpdate()
+                    .set(GoodsSku::getStock, goodsSku.getStock() - seckillStock)
+                    .ge(GoodsSku::getStock, seckillStock)
+                    .eq(GoodsSku::getId, goodsSku.getId());
+            asyncMethodService.seckillScheduleTask(goodsSeckill);
         }
     }
+
 
     /**
      * 获取秒杀商品列表的分页数据
@@ -198,14 +107,19 @@
      * @param upd 商品秒杀数据传输对象
      */
     @Override
+    @Transactional(rollbackFor = Exception.class)
     public void updGoodsSeckill(GoodsSeckillUpd upd) {
         //查询秒杀商品
         GoodsSeckill goodsSeckill = this.getById(upd.getId());
         if (StringUtils.isNull(goodsSeckill)) {
-            throw new RuntimeException("秒杀商品不存在");
+            throw new ServiceException("秒杀商品不存在");
+        }
+        if (goodsSeckill.getStartStatus().equals(StartStatusEnum.STARTED)) {
+            throw new ServiceException("秒杀商品已开始秒杀,不能修改");
         }
         GoodsSeckill goodsSeckillUpd = BeanUtils.copyBean(upd, GoodsSeckill.class);
         this.updateById(goodsSeckillUpd);
+        asyncMethodService.seckillScheduleTask(goodsSeckill);
     }
 
     /**
@@ -215,10 +129,21 @@
      */
     @Override
     public void updStatus(ListStatusDTO dto) {
+        GoodsSeckill goodsSeckill = this.getById(dto.getId());
+        if (StringUtils.isNull(goodsSeckill)) {
+            throw new ServiceException("秒杀商品不存在");
+        }
         this.lambdaUpdate()
                 .eq(GoodsSeckill::getId, dto.getId())
                 .set(GoodsSeckill::getListingStatus, dto.getListingStatus())
                 .update();
+        if (dto.getListingStatus().equals(ListingStatusEnum.REMOVED_FROM_THE_SHELF)) {
+            //移除该秒杀商品的延时任务
+            redisService.deleteObject(
+                    DelayTaskEnum.SECKILL_START_TASK.getCode() + "-" + goodsSeckill.getId());
+            redisService.deleteObject(
+                    DelayTaskEnum.SECKILL_END_TASK.getCode() + "-" + goodsSeckill.getId());
+        }
     }
 
     /**
@@ -231,12 +156,13 @@
     public GoodsSeckillVO getDetail(Long id) {
         GoodsSeckill goodsSeckill = this.getById(id);
         if (StringUtils.isNull(goodsSeckill)) {
-            throw new RuntimeException("秒杀商品不存在");
+            throw new ServiceException("秒杀商品不存在");
         }
         GoodsSeckillVO vo = BeanUtils.copyBean(goodsSeckill, GoodsSeckillVO.class);
         GoodsSku goods = goodsSkuService.getById(goodsSeckill.getGoodsSkuId());
         Optional.of(goods).ifPresent(goodsSku -> vo.setGoodsSkuName(goodsSku.getSkuName()));
-        Integer num = orderClient.getSeckillMembers(goodsSeckill.getGoodsSkuId()).getData();
+        Integer num = orderClient.getSeckillMembers(goodsSeckill.getGoodsSkuId(),
+                SecurityConstants.INNER).getData();
         vo.setNumberOfPurchasedMembers(num);
         return vo;
     }
@@ -247,7 +173,7 @@
      * @param seckillId 秒杀id
      */
     @Override
-    public void startSeckill(Long seckillId) {
+    public void startSeckill(Long seckillId) throws JsonProcessingException {
         log.info(">>>>>>>>>>>>>>>>>>>>{}秒杀开始<<<<<<<<<<<<<<<<<<<<", seckillId);
         GoodsSeckill goodsSeckill = this.getById(seckillId);
         //秒杀商品不能为空且状态为未开始
@@ -261,7 +187,14 @@
                     CacheConstants.SECKILL_GOODS + goodsSeckill.getId(),
                     goodsSeckill.getSeckillStock());
         }
-        //TODO websocket 推送秒杀开始消息
+        //推送秒杀开始消息
+        Map<String, Object> map = new ConcurrentHashMap<>();
+        map.put("notification_type", NotificationTypeConstant.SECKILL);
+        map.put("notification_time", LocalDateTime.now());
+        map.put("message_type", "start");
+        String msg = objectMapper.writeValueAsString(map);
+        WebSocketUsers.sendMessageToUsersByText(msg);
+        log.info("===================>发送websocket通知,消息体{}", msg);
     }
 
     /**
@@ -270,7 +203,7 @@
      * @param seckillId 秒杀id
      */
     @Override
-    public void endSeckill(Long seckillId) {
+    public void endSeckill(Long seckillId) throws JsonProcessingException {
         log.info(">>>>>>>>>>>>>>>>>>>>{}秒杀结束<<<<<<<<<<<<<<<<<<<<", seckillId);
         GoodsSeckill goodsSeckill = this.getById(seckillId);
         if (StringUtils.isNotNull(goodsSeckill)
@@ -281,6 +214,12 @@
 //            将秒杀商品从缓存中移除
             redisService.deleteObject(CacheConstants.SECKILL_GOODS + goodsSeckill.getId());
         }
-        //TODO websocket 推送秒杀结束消息
+        Map<String, Object> map = new ConcurrentHashMap<>();
+        map.put("notification_type", NotificationTypeConstant.SECKILL);
+        map.put("notification_time", LocalDateTime.now());
+        map.put("message_type", "end");
+        String msg = objectMapper.writeValueAsString(map);
+        WebSocketUsers.sendMessageToUsersByText(msg);
+        log.info("===================>发送websocket通知,消息体{}", msg);
     }
 }

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