更新redis，支持byte更新

redis/redis.go

@@ -80,19 +80,21 @@ func Get(key string) interface{} {
 	return reply
 }
 
-//Set 设置一个值
-func Set(key string, val interface{}, timeout time.Duration) (err error) {
+//设置一个值
+func Set(key string, val interface{}, timeout time.Duration) error {
+	data, err := json.Marshal(val)
+	if err != nil {
+		return err
+	}
+	return SetBytes(&key, &data, timeout)
+}
+
+func SetBytes(key *string, data *[]byte, timeout time.Duration) error {
 	conn := pool.Get()
 	defer conn.Close()
 
-	var data []byte
-	if data, err = json.Marshal(val); err != nil {
-		return
-	}
-
-	_, err = conn.Do("SETEX", key, int64(timeout/time.Second), data)
-
-	return
+	_, err := conn.Do("SETEX", key, int64(timeout/time.Second), *data)
+	return err
 }
 
 //IsExist 判断key是否存在