diff --git a/application/admin/controller/general/File.php b/application/admin/controller/general/File.php
index 70f7c3e..62fe4c6 100644
--- a/application/admin/controller/general/File.php
+++ b/application/admin/controller/general/File.php
@@ -45,14 +45,11 @@ class File extends Backend
                 'order'   => $order
             ], $rows, $page);
 
-            $cosConfig = function_exists('get_addon_config') ? get_addon_config('cos') : [];
-            $cdnUrl    = (!empty($cosConfig['cdnurl'])) ? rtrim($cosConfig['cdnurl'], '/') : '';
-
             if (!empty($result['list'])) {
                 foreach ($result['list'] as &$v) {
                     $v['checked']   = false;
                     $v['showTools'] = false;
-                    $v['fullurl']   = (!empty($cdnUrl) && stripos($v['url'], 'http') !== 0) ? ($cdnUrl . $v['url']) : cdnurl($v['url'], true);
+                    $v['fullurl']   = cdnurl($v['url'], true);
                 }
             }
 
diff --git a/application/common.php b/application/common.php
index 0dea3e5..0f32db2 100644
--- a/application/common.php
+++ b/application/common.php
@@ -519,7 +519,16 @@ if (!function_exists('cdnurl')) {
     {
         $regex  = "/^((?:[a-z]+:)?\/\/|data:image\/)(.*)/i";
         $cdnurl = \think\Config::get('upload.cdnurl');
-        $url    = is_array($url) ? $url[0] : $url;
+        if (empty($cdnurl) && function_exists('get_addon_config')) {
+            $cosConfig = get_addon_config('cos');
+            if (!empty($cosConfig['cdnurl'])) {
+                $cdnurl = rtrim($cosConfig['cdnurl'], '/');
+            }
+        }
+        $url = is_array($url) ? $url[0] : $url;
+        if (empty($url)) {
+            return '';
+        }
         if (is_bool($domain) || stripos($cdnurl, '/') === 0) {
             $url = preg_match($regex, $url) || ($cdnurl && stripos($url, $cdnurl) === 0) ? $url : $cdnurl . $url;
         }
@@ -527,6 +536,15 @@ if (!function_exists('cdnurl')) {
             $domain = is_bool($domain) ? request()->domain() : $domain;
             $url    = $domain . $url;
         }
+
+        // 采用COS图片处理参数将图片最大宽度限制在1000px以内并转为webp格式
+        if (!empty($cdnurl) && stripos($url, $cdnurl) !== false) {
+            if (preg_match('/\.(jpg|jpeg|png|bmp|webp)(\?.*)?$/i', $url) && stripos($url, 'imageMogr2') === false) {
+                $separator = (strpos($url, '?') !== false) ? '&' : '?';
+                $url .= $separator . 'imageMogr2/thumbnail/1000x%3E/format/webp';
+            }
+        }
+
         return $url;
     }
 }