404状态码测试页面xml

app/controllers/main_controller.rb

@@ -15,6 +15,7 @@ class MainController < ApplicationController
 
     respond_to do |format|
       format.html { render template: "/shared/#{fname}", handler: [:erb], status: status }
+      format.xml { render :xml => Laboratory.limit(1).to_xml, status: status }
       format.all { render body: nil, status: status }
     end
   end