diff --git a/app/controllers/traces/base_controller.rb b/app/controllers/traces/base_controller.rb
new file mode 100644
index 000000000..30970a5b8
--- /dev/null
+++ b/app/controllers/traces/base_controller.rb
@@ -0,0 +1,26 @@
+class Traces::BaseController < ApplicationController
+
+  helper_method :observed_logged_user?, :observed_user
+  before_action :check_trace_system
+
+  def observed_user
+    @_observed_user ||= (User.find_by_login(params[:user_id]) || User.find_by_id(params[:user_id]))
+  end
+
+  def observed_logged_user?
+    observed_user.id == User.current&.id
+  end
+
+  protected
+  def check_auth 
+    return render_forbidden unless current_user.admin? || observed_logged_user?
+  end
+
+  def check_trace_system
+    code, data, error = Trace::SystemInfoService.call(current_user.trace_token)
+    return render_ok({code: 501, data: {operate_time: data['operate_time']}, message: '系统维护中'}) if data['status'] === 0
+  rescue 
+    # 这里根据需求跳转到404
+    return render_not_found
+  end
+end
\ No newline at end of file
diff --git a/app/views/users/messages/_message.json.jbuilder b/app/views/users/messages/_message.json.jbuilder
index 075613ce9..07040dfe5 100644
--- a/app/views/users/messages/_message.json.jbuilder
+++ b/app/views/users/messages/_message.json.jbuilder
@@ -6,6 +6,7 @@ json.status message["status"]
 json.content message["content"]
 json.notification_url message["notification_url"]
 json.source message["source"]
+json.created_at message["created_at"]
 json.time_ago time_from_now(message["created_at"].to_time)
 
 case message["type"]