feat:增加singleFlight并发控制jwt颁发

server/global/global.go

@@ -3,6 +3,8 @@ package global
 import (
 	"gin-vue-admin/utils/timer"
 
+	"golang.org/x/sync/singleflight"
+
 	"go.uber.org/zap"
 
 	"gin-vue-admin/config"
@@ -18,6 +20,7 @@ var (
 	GVA_CONFIG config.Server
 	GVA_VP     *viper.Viper
 	//GVA_LOG    *oplogging.Logger
-	GVA_LOG   *zap.Logger
-	GVA_Timer timer.Timer = timer.NewTimerTask()
+	GVA_LOG                 *zap.Logger
+	GVA_Timer               timer.Timer = timer.NewTimerTask()
+	GVA_Concurrency_Control             = &singleflight.Group{}
 )