#1249

Optimized the generation of serial numbers

services/reward/serial.go

@@ -11,7 +11,7 @@ import (
 
 func GetSerialNoByRedis() (string, error) {
 	now := time.Now()
-	r := int64(rand.Intn(4)) + 1
+	r := int64(rand.Intn(3)) + 1
 	n, err := redis_client.IncrBy(redis_key.RewardSerialCounter(now), r)
 	if err != nil {
 		log.Error("GetSerialNoByRedis RewardSerialCounter error. %v", err)
@@ -20,5 +20,9 @@ func GetSerialNoByRedis() (string, error) {
 	if n == r {
 		redis_client.Expire(redis_key.RewardSerialCounter(now), 2*time.Minute)
 	}
+	//when the counter n exceeds 1000, the length of the serial number will become longer
+	if n > 1000 {
+		return now.Format("200601021504") + fmt.Sprintf("%d", n) + fmt.Sprint(rand.Intn(10)), nil
+	}
 	return now.Format("200601021504") + fmt.Sprintf("%03d", n) + fmt.Sprint(rand.Intn(10)), nil
 }