diff --git a/lib/Lib/Core/Controller.js b/lib/Lib/Core/Controller.js
index 8777331a..60560ffe 100644
--- a/lib/Lib/Core/Controller.js
+++ b/lib/Lib/Core/Controller.js
@@ -182,8 +182,7 @@ module.exports = Class(function() {
                 return instance.rm();
             }
             if (value !== undefined) {
-                instance.set(name, value);
-                return this;
+                return instance.set(name, value);
             }
             return instance.get(name);
         },
diff --git a/lib/Lib/Core/Db.js b/lib/Lib/Core/Db.js
index c17e5cdd..b2d79332 100644
--- a/lib/Lib/Core/Db.js
+++ b/lib/Lib/Core/Db.js
@@ -661,16 +661,17 @@ var Db = module.exports = Class(function(){
                 cache = options.cache;
             }
             var self = this;
+            var cacheOn = !isEmpty(cache) && C('db_cache_on');
             //获取数据
             function queryData(){
                 return self.query(sql).then(function(data){
-                    if (cache) {
+                    if (cacheOn) {
                         S(key, data, cache);
                     }
                     return data;
                 });
             }
-            if (!isEmpty(cache) && C('db_cache_on')) {
+            if (cacheOn) {
                 var key = isString(cache.key) && cache.key ? cache.key : md5(sql);
                 return S(key, undefined, cache).then(function(value){
                     return value || queryData();