javee学习-通过ServletContext对象实现数据共享

ServletContext context = this.getServletConfig().getServletContext();//获得ServletContext对象
//                 context.setAttribute("data", this.getClass());  //将data存储到ServletContext对象中

ServletContext context = this.getServletContext();
            String data = context.getAttribute("data").toString();// 从ServletContext对象中取出数据
            response.getWriter().print("data=" + data);