diff --git a/app/controllers/attachments_controller.rb b/app/controllers/attachments_controller.rb
index 7a855871c..eb73ea3f7 100644
--- a/app/controllers/attachments_controller.rb
+++ b/app/controllers/attachments_controller.rb
@@ -33,8 +33,9 @@ class AttachmentsController < ApplicationController
     normal_status(-1, "参数缺失") if params[:download_url].blank?
     url = base_url.starts_with?("https:") ? params[:download_url].to_s.gsub("http:", "https:") : params[:download_url].to_s
     md5_file  = Base64.strict_encode64(params[:download_url])
-    tmp_path = "#{Rails.root}/public/files/#{Time.now.strftime('%Y%m%d%')}-#{md5_file}"
-    cache_key ="get_file:#{Time.now.strftime('%Y%m%d%')}:#{md5_file}"
+    FileUtils.mkdir_p("#{Rails.root}#{EduSetting.get("attachment_folder")}gitea/") unless Dir.exists?("#{Rails.root}#{EduSetting.get("attachment_folder")}gitea/")
+    tmp_path = "#{Rails.root}#{EduSetting.get("attachment_folder")}gitea/#{Time.now.strftime('%Y%m%d')}-#{md5_file}"
+    cache_key ="get_file:#{Time.now.strftime('%Y%m%d')}:#{md5_file}"
     value = Rails.cache.read(cache_key)
     if value.to_i >= 5 && File.exist?(tmp_path)
       send_data(tmp_path,  filename: filename, type: "application/octet-stream", disposition: 'attachment')