diff --git a/plugins/Common.php b/plugins/Common.php
index fe4ec33..8e22683 100644
--- a/plugins/Common.php
+++ b/plugins/Common.php
@@ -51,7 +51,11 @@ Class Common {
     //保存用户多收藏夹目录映射关系
     public static function saveUserDirMap($cellphone, $username, $new_dir) {
         $my_user_map = self::getMyDirs($cellphone, $username);
-        array_push($my_user_map, $new_dir);
+        if (!in_array($new_dir, $my_user_map)) {
+            array_push($my_user_map, $new_dir);
+        }else {
+            return true;
+        }
 
         $my_id = self::getUserId($cellphone);
         $rootDir = __DIR__ . '/../www/' . FSC::$app['config']['content_directory'];
@@ -89,7 +93,7 @@ Class Common {
             }
         }
 
-        return $map;
+        return array_unique($map, SORT_NUMERIC);
     }
 
     //保存用户共享目录记录
@@ -124,7 +128,7 @@ Class Common {
         if(!empty($shareDirs[$friends_cellphone]) && in_array($share_dir, $shareDirs[$friends_cellphone])) {
             $shareDirs[$friends_cellphone] = array_diff($shareDirs[$friends_cellphone], array($share_dir));
         }else {
-            return false;
+            return true;
         }
 
         $my_id = self::getUserId($cellphone);
@@ -325,7 +329,7 @@ Class Common {
                     array_merge($map, $tajian_user_map[$cellphone]) : array_push($map, $tajian_user_map[$cellphone]);
         }
 
-        return array_unique($map);
+        return array_unique($map, SORT_NUMERIC);
     }
 
     public static function getNicknameByDir($dir, $username){