diff --git a/app/Http/Admin/Controllers/UploadController.php b/app/Http/Admin/Controllers/UploadController.php
index 06667238..6c51b97e 100644
--- a/app/Http/Admin/Controllers/UploadController.php
+++ b/app/Http/Admin/Controllers/UploadController.php
@@ -40,8 +40,9 @@ class UploadController extends Controller
         }
 
         $data = [
+            'id' => $file->id,
+            'name' => $file->name,
             'url' => $service->getImageUrl($file->path),
-            'title' => $file->name,
         ];
 
         return $this->jsonSuccess(['data' => $data]);
@@ -61,8 +62,9 @@ class UploadController extends Controller
         }
 
         $data = [
+            'id' => $file->id,
+            'name' => $file->name,
             'url' => $service->getImageUrl($file->path),
-            'title' => $file->name,
         ];
 
         return $this->jsonSuccess(['data' => $data]);
@@ -82,8 +84,9 @@ class UploadController extends Controller
         }
 
         $data = [
+            'id' => $file->id,
+            'name' => $file->name,
             'url' => $service->getImageUrl($file->path),
-            'title' => $file->name,
         ];
 
         return $this->jsonSuccess(['data' => $data]);
@@ -100,7 +103,7 @@ class UploadController extends Controller
 
         if (!$file) {
             return $this->jsonError([
-                'message' => '上传图片失败',
+                'message' => '上传文件失败',
                 'error' => 1,
             ]);
         }
diff --git a/app/Http/Api/Controllers/UploadController.php b/app/Http/Api/Controllers/UploadController.php
index 354a2c84..6ee9393e 100644
--- a/app/Http/Api/Controllers/UploadController.php
+++ b/app/Http/Api/Controllers/UploadController.php
@@ -30,8 +30,9 @@ class UploadController extends Controller
         }
 
         $data = [
+            'id' => $file->id,
+            'name' => $file->name,
             'url' => $service->getImageUrl($file->path),
-            'title' => $file->name,
         ];
 
         return $this->jsonSuccess(['data' => $data]);
diff --git a/app/Http/Home/Controllers/UploadController.php b/app/Http/Home/Controllers/UploadController.php
index ed699c8b..5154e9d6 100644
--- a/app/Http/Home/Controllers/UploadController.php
+++ b/app/Http/Home/Controllers/UploadController.php
@@ -39,17 +39,18 @@ class UploadController extends Controller
         }
 
         $data = [
+            'id' => $file->id,
+            'name' => $file->name,
             'url' => $service->getImageUrl($file->path),
-            'title' => $file->name,
         ];
 
         return $this->jsonSuccess(['data' => $data]);
     }
 
     /**
-     * @Post("/editor/img", name="home.upload.editor_img")
+     * @Post("/content/img", name="home.upload.content_img")
      */
-    public function uploadEditorImageAction()
+    public function uploadContentImageAction()
     {
         $service = new StorageService();
 
@@ -57,7 +58,7 @@ class UploadController extends Controller
 
         if (!$file) {
             return $this->jsonError([
-                'message' => '上传图片失败',
+                'message' => '上传文件失败',
                 'error' => 1,
             ]);
         }
diff --git a/public/static/admin/js/course.resource.js b/public/static/admin/js/course.resource.js
index e8be73e8..9d1c4654 100644
--- a/public/static/admin/js/course.resource.js
+++ b/public/static/admin/js/course.resource.js
@@ -117,7 +117,8 @@ layui.use(['jquery', 'element', 'layer'], function () {
 
     function getFileExtension(filename) {
         var index = filename.lastIndexOf('.');
-        return filename.substr(index + 1);
+        if (index === -1) return '';
+        return filename.slice(index + 1);
     }
 
     function loadResourceList() {