diff --git a/application/admin/controller/Ajax.php b/application/admin/controller/Ajax.php
index 828e228d2d8eb97229e1ec4cf9af2fe713935747..40203077074d9fdbdab9efd9640b6a4cdd9a3b5c 100644
--- a/application/admin/controller/Ajax.php
+++ b/application/admin/controller/Ajax.php
@@ -124,9 +124,15 @@ class Ajax extends Backend
             $attachment = model("attachment");
             $attachment->data(array_filter($params));
             $attachment->save();
+
+            $lastId = empty($attachment['id'])
+                ? $attachment->where('sha1', '=', $params['sha1'])->value('id')
+                : $attachment['id'];
+
             \think\Hook::listen("upload_after", $attachment);
             $this->success(__('Upload successful'), null, [
-                'url' => $uploadDir . $splInfo->getSaveName()
+                'url' => $uploadDir . $splInfo->getSaveName(),
+                'id'  => $lastId
             ]);
         } else {
             // 上传失败获取错误信息
diff --git a/application/common/model/Attachment.php b/application/common/model/Attachment.php
index 2149aec71ebe826ec689dda2b745156c7ec534fa..21fe292d2e6a4a6aad68d850ec1e1935a55885ee 100644
--- a/application/common/model/Attachment.php
+++ b/application/common/model/Attachment.php
@@ -25,7 +25,7 @@ class Attachment extends Model
     {
         // 如果已经上传该资源，则不再记录
         self::beforeInsert(function ($model) {
-            if (self::where('url', '=', $model['url'])->find()) {
+            if (self::where('sha1', '=', $model['sha1'])->find()) {
                 return false;
             }
         });