diff --git a/controller/Controller.php b/controller/Controller.php
index b60e379..aaf2fe7 100644
--- a/controller/Controller.php
+++ b/controller/Controller.php
@@ -305,4 +305,10 @@ Class Controller {
         return array_pop($arr);
     }
 
+    //get cache key
+    protected function getCacheKey($cateId, $dataType = 'tree', $maxScanDeep = 2) {
+        $prefix = FSC::$app['config']['theme'];
+        return "{$prefix}_{$dataType}_{$maxScanDeep}_{$cateId}";
+    }
+
 }
diff --git a/themes/beauty/controller/ListController.php b/themes/beauty/controller/ListController.php
index d0722c3..016930e 100644
--- a/themes/beauty/controller/ListController.php
+++ b/themes/beauty/controller/ListController.php
@@ -36,18 +36,12 @@ Class ListController extends Controller {
             throw new Exception("缓存数据中找不到当前目录，请返回上一页重新进入！", 404);
         }
 
-        //$scanner->setWebRoot(FSC::$app['config']['content_directory']);
         $scanner->setWebRoot($this->getCurrentWebroot($currentDir));
         $scanner->setRootDir($currentDir['realpath']);
-        //header('Content-Type: text/html; charset=utf-8');
-        //echo $this->getCurrentWebroot($currentDir) . "\n";
-        //echo $currentDir['realpath'] . "\n";
-        //exit;
 
         //优先从缓存读取数据
-        $prefix = FSC::$app['config']['theme'] . '_v1.0';
         $maxScanDeep = 2;       //最大扫描目录级数
-        $cacheKey = "{$prefix}_ltree_{$maxScanDeep}_{$cateId}";
+        $cacheKey = $this->getCacheKey($cateId, 'tree', $maxScanDeep);
         $cachedData = Common::getCacheFromFile($cacheKey);
         if (!empty($cachedData)) {
             $dirTree = $cachedData;
@@ -58,7 +52,7 @@ Class ListController extends Controller {
         }
 
         //优先从缓存读取数据
-        $cacheKey = $cacheDataId = "{$prefix}_ldata_{$maxScanDeep}_{$cateId}";
+        $cacheKey = $cacheDataId = $this->getCacheKey($cateId, 'data', $maxScanDeep);
         $cachedData = Common::getCacheFromFile($cacheKey);
         if (!empty($cachedData)) {
             $scanResults = $cachedData;
@@ -146,7 +140,7 @@ Class ListController extends Controller {
         $viewName = '//site/index';     //共享视图
         $params = compact(
             'cateId', 'dirTree', 'scanResults', 'menus', 'htmlReadme', 'breadcrumbs', 'htmlCateReadme',
-            'mp3File', 'page', 'pageSize', 'cacheDataId', 'cacheParentDataId'
+            'mp3File', 'page', 'pageSize', 'cacheDataId'
         );
         return $this->render($viewName, $params, $pageTitle);
     }
@@ -195,6 +189,7 @@ Class ListController extends Controller {
     }
 
     //根据目录结构以及当前目录获取面包屑
+    //TODO: 改善每一级目录的链接地址中的cid，利用缓存数据把每一级的缓存cid参数记录下来
     protected function getBreadcrumbs($currentDir, $scanResults, $scanner) {
         $webroot = FSC::$app['config']['content_directory'];
         $arr = explode($webroot, $currentDir['realpath']);
@@ -205,19 +200,24 @@ Class ListController extends Controller {
         }
 
         $cates = explode('/', $arr[1]);
-        $parentCate = "{$arr[0]}{$webroot}";
-        foreach ($cates as $cate) {
+        $parentCate = preg_replace("/\/$/", '', "{$arr[0]}{$webroot}");     //删除最后一个斜杠
+        foreach ($cates as $index => $cate) {
             if ($cate == $currentDir['directory']) {break;}
 
-            $subcate = "{$parentCate}{$cate}";
+            $subcate = "{$parentCate}/{$cate}";
             $cateId = $scanner->getId($subcate);
+
+            //下一级子目录的id
+            $parentCateId = $scanner->getId($parentCate);
+            $cacheKey = $this->getCacheKey($parentCateId, 'data');
+
             array_push($breads, [
                 'id' => $cateId,
                 'name' => $cate,
-                'url' => $scanResults[$cateId]['path'],
+                'url' => "/list/?id={$cateId}&cid={$cacheKey}",
             ]);
 
-            $parentCate = "{$subcate}/";     //记录上一级目录
+            $parentCate = $subcate;     //记录上一级目录
         }
 
         //最后一级
diff --git a/themes/beauty/controller/SiteController.php b/themes/beauty/controller/SiteController.php
index b550133..bdaf4e5 100644
--- a/themes/beauty/controller/SiteController.php
+++ b/themes/beauty/controller/SiteController.php
@@ -17,12 +17,14 @@ Class SiteController extends Controller {
         
         $scanner = new DirScanner();
         $scanner->setWebRoot(FSC::$app['config']['content_directory']);
-        $scanner->setRootDir(__DIR__ . '/../../../www/' . FSC::$app['config']['content_directory']);
+
+        $rootDir = __DIR__ . '/../../../www/' . FSC::$app['config']['content_directory'];
+        $scanner->setRootDir($rootDir);
 
         //优先从缓存读取数据
-        $prefix = FSC::$app['config']['theme'];
+        $defaultCateId = $scanner->getId(preg_replace("/\/$/", '', realpath($rootDir)));
         $maxScanDeep = 2;       //最大扫描目录级数
-        $cacheKey = "{$prefix}_tree_{$maxScanDeep}_" . md5(FSC::$app['config']['content_directory']);
+        $cacheKey = $this->getCacheKey($defaultCateId, 'tree', $maxScanDeep);
         $cachedData = Common::getCacheFromFile($cacheKey);
         if (!empty($cachedData)) {
             $dirTree = $cachedData;
@@ -33,7 +35,7 @@ Class SiteController extends Controller {
         }
 
         //优先从缓存读取数据
-        $cacheKey = $cacheDataId = "{$prefix}_data_{$maxScanDeep}_" . md5(FSC::$app['config']['content_directory']);
+        $cacheKey = $cacheDataId = $this->getCacheKey($defaultCateId, 'data', $maxScanDeep);
         $cachedData = Common::getCacheFromFile($cacheKey);
         if (!empty($cachedData)) {
             $scanResults = $cachedData;
diff --git a/themes/beauty/views/site/index.php b/themes/beauty/views/site/index.php
index 2f672eb..d9ad1a7 100644
--- a/themes/beauty/views/site/index.php
+++ b/themes/beauty/views/site/index.php
@@ -61,7 +61,7 @@ eof;
     foreach ($breadcrumbs as $bread) {
         if ($bread['id'] != $selectedId) {
             echo <<<eof
-        <a href="{$bread['url']}&cid={$viewData['cacheParentDataId']}">{$bread['name']}</a> / 
+        <a href="{$bread['url']}">{$bread['name']}</a> / 
 eof;
         } else {
             echo <<<eof