diff --git a/pkg/common/db/redisModel.go b/pkg/common/db/redisModel.go
index c6defb8bd..8b3cdb4c7 100644
--- a/pkg/common/db/redisModel.go
+++ b/pkg/common/db/redisModel.go
@@ -6,6 +6,7 @@ import (
 	pbCommon "Open_IM/pkg/proto/sdk_ws"
 	"encoding/json"
 	"github.com/garyburd/redigo/redis"
+	"strings"
 )
 
 const (
@@ -192,12 +193,8 @@ func (d *DataBases) ReduceFriendToCache(userID string, friendIDList ...interface
 }
 
 func (d *DataBases) GetFriendIDListFromCache(userID string) ([]string, error) {
-	result, err := redis.Values(d.Exec("SMEMBERS", friendRelationCache+userID))
-	var userIDList []string
-	for _, v := range result {
-		userIDList = append(userIDList, v.(string))
-	}
-	return userIDList, err
+	result, err := redis.String(d.Exec("SMEMBERS", friendRelationCache+userID))
+	return strings.Split(result, " "), err
 }
 
 func (d *DataBases) AddBlackUserToCache(userID string, blackList ...interface{}) error {
@@ -211,10 +208,6 @@ func (d *DataBases) ReduceBlackUserFromCache(userID string, blackList ...interfa
 }
 
 func (d *DataBases) GetBlackListFromCache(userID string) ([]string, error) {
-	result, err := redis.Values(d.Exec("SMEMBERS", blackListCache+userID))
-	var userIDList []string
-	for _, v := range result {
-		userIDList = append(userIDList, v.(string))
-	}
-	return userIDList, err
+	result, err := redis.String(d.Exec("SMEMBERS", blackListCache+userID))
+	return strings.Split(result, " "), err
 }