4.向application域共享数据

   //向application(ServletContext)域共享数据
    @RequestMapping("/testApplication")
    public String testApplication(HttpSession session){
        ServletContext application=session.getServletContext();
        application.setAttribute("testApplicationScope","hello , application");
        return "success";
    }

<p th:text="${application.testApplicationScope}"></p><br><br><br>