diff --git a/app/admin/controller/api/Upload.php b/app/admin/controller/api/Upload.php
index c53db5870..070b6d4e7 100644
--- a/app/admin/controller/api/Upload.php
+++ b/app/admin/controller/api/Upload.php
@@ -77,9 +77,10 @@ class Upload extends Controller
             'hash.require' => '哈希不能为空！',
             'xext.require' => '后缀不能为空！',
             'size.require' => '大小不能为空！',
-            'mime.require' => "类型不能为空！",
+            'mime.default' => '',
             'status.value' => 1
         ]));
+        if (empty($file['mime'])) $file['mime'] = Storage::mime($file['xext']);
         if ($info = Storage::instance($data['uptype'])->info($data['key'], $safe, $name)) {
             $file->save(['xurl' => $info['url'], 'isfast' => 1, 'issafe' => $data['safe']]);
             $extr = ['id' => $file->id ?? 0, 'url' => $info['url'], 'key' => $info['key']];
@@ -128,8 +129,8 @@ class Upload extends Controller
         $data = $this->_vali([
             'id.require'   => '编号不能为空！',
             'hash.require' => '哈希不能为空！',
+            'uuid.value'   => AdminService::getUserId()
         ]);
-        $data['uuid'] = AdminService::getUserId();
         $file = SystemFile::mk()->where($data)->findOrEmpty();
         if ($file->isEmpty()) $this->error('文件不存在！');
         if ($file->save(['status' => 2])) {