servlet后台老板alert提示至前端

servlet后台alert提示至前端

response.setContentType("text/html;charset=utf-8");PrintWriter out = response.getWriter();out.print("<script type='text/javascript'>alert('验证码输入错误!')</script>");out.print("<script type='text/javascript'>location.href='Admin/AdminLogin.jsp'</script>");out.flush();out.close();