接入百度统计部分数据，缓存总数据

app/views/admins/dashboards/index.html.erb

@@ -1,6 +1,8 @@
 <% define_admin_breadcrumbs do %>
   <% add_admin_breadcrumb('概览', admins_path) %>
 <% end %>
+
+<% cache "/admin/dashboards/#{Time.now.strftime('%Y-%m-%d')}", :expires_in => 1.days do %>
 <div class="header bg-gradient-primary pb-8 pt-md-8">
   <div class="container-fluid">
     <div class="header-body">
@@ -30,6 +32,7 @@
     </div>
   </div>
 </div>
+<%end %>
 
 <div class="box admin-list-container project-language-list-container">
   <table class="table table-hover text-center subject-list-table">