得到application

　　　ServletContext application = request.getSession().getServletContext();
        String basePath = (String) application.getAttribute("rootUrl");
        System.err.println(application.getAttribute("rootUrl")+"----------111111------------"+request.getServletContext().getRealPath("/"));
        //response.sendRedirect(basePath+"app/wx/product/manage");
 

得到application

原文：http://www.cnblogs.com/kongxc/p/6671493.html