并发问题

controller/sku_controller.go

@@ -117,8 +117,8 @@ func CommonController(ctx *gin.Context) map[string]interface{} {
 
 	var wg sync.WaitGroup
 	ch := make(chan sync.Map, 50) //管道
-	wgMax := 3                    //线程数量最多多少
-	wgcount := 0                  //当前线程数
+	//wgMax := 3                    //线程数量最多多少
+	//wgcount := 0 //当前线程数
 
 	temp := make(map[string]interface{}) //最后输出计算结果
 	for _, goodsId := range goodsIdArr {
@@ -164,32 +164,34 @@ func CommonController(ctx *gin.Context) map[string]interface{} {
 
 			// 启动协程，传递独立的 context 和参数，而不是 gin.Context
 			go func(ctx context.Context, params service.RequestParams, skuStr, goodsId, spuStr string, ch chan sync.Map) {
-				defer wg.Done()
+				//defer wg.Done()
+				defer func() { <-ch }()
 				lyService.LyGoodsDetail(ctx, params, skuStr, goodsId, spuStr, ch)
 			}(ctx, requestParams, skuStr, goodsId, redisLySpuArr[spuId], ch)
 
-			wg.Add(1)
-			wgcount += 1
+			//wg.Add(1)
+			//	wgcount += 1
 
-			if wgcount >= wgMax {
-				println("线程数量:" + gconv.String(wgcount))
-				wg.Wait() // 等待所有登记的goroutine都结束
-				wgcount = 0
-			}
+			//if wgcount >= wgMax {
+			//	println("线程数量:" + gconv.String(wgcount))
+			//	wg.Wait() // 等待所有登记的goroutine都结束
+			//	wgcount = 0
+			//}
 		}
 	}
 
-	if wgcount > 0 {
-		//println("等待结束,现有运行线程数：" + gconv.String(wgcount))
-		//wg.Wait()
-	}
-	close(ch)
+	//if wgcount > 0 {
+	//	//println("等待结束,现有运行线程数：" + gconv.String(wgcount))
+	//	//wg.Wait()
+	//}
+	//wg.Wait()
 
 	//异步map最后转成map
 	for {
 		select {
 		case GoodsRes, ok := <-ch:
 			if !ok { // channel被关闭，说明所有协程都已执行完毕或超时
+				close(ch)
 				return temp
 			}
 			GoodsRes.Range(func(k, v interface{}) bool {
@@ -199,10 +201,10 @@ func CommonController(ctx *gin.Context) map[string]interface{} {
 			})
 		case <-time.After(20 * time.Second):
 			println("协程超时20秒")
+			close(ch)
 			return temp
 		}
 	}
-
 }
 func Synchronization(ctx *gin.Context) {
 

service/service_ly.go

@@ -10,6 +10,7 @@ import (
 	"go_sku_server/service/sorter"
 	"sort"
 	"sync"
+	"time"
 
 	"gopkg.in/mgo.v2"
 	"gopkg.in/mgo.v2/bson"
@@ -38,6 +39,7 @@ type Power struct {
 */
 func (ls *LyService) LyGoodsDetail(ctx context.Context, params RequestParams, skuStr, goodsId, spuStr string, ch chan sync.Map) {
 
+	start_time := gconv.String(time.Now().UnixMilli())
 	redisConn := gredis.Conn("search_r")
 	redisConnSpu := gredis.Conn("spu")
 	// 连接prev_sku MongoDB
@@ -273,6 +275,7 @@ func (ls *LyService) LyGoodsDetail(ctx context.Context, params RequestParams, sk
 
 	//退出通道
 	ch <- GoodsRes
+	println("-----goodsId:" + goodsId + "--start_time:" + start_time + " ---end_time:" + gconv.String(time.Now().UnixMilli()))
 }
 
 // 获取活动