javaweb刷新和不缓存

response.setContentType("text/html;charset=UTF-8");
		/*response.setIntHeader("refresh", 1);//设置1秒钟刷新一次
		
		Random r = new Random();
		
		response.getWriter().write(r.nextInt()+"");*/
		
		response.getWriter().write("注册成功！3秒钟跳到主页");
		//设置3秒钟跳转
		response.setHeader("refresh", "3;url=/day09_00_HttpServletResponse/servlet/demo6");

    //告诉客户端不使用缓存
        response.setHeader("pragma", "no-cache");
        response.setHeader("cache-control", "no-cache");
        response.setIntHeader("expires", 0);