<%@ page contentType="image/jpeg" import="java.awt.image.*,java.util.*,javax.imageio.*" %><% response.setHeader("Pragma","No-cache"); response.setHeader("Cache-Control","no-cache"); response.setDateHeader("Expires", 0); Vector v1=com.zhichi.util.RandImg.img(); BufferedImage image = (BufferedImage)v1.elementAt(0); String rand=v1.elementAt(1).toString(); session.setAttribute("login.rand",rand); ImageIO.write(image, "JPEG", response.getOutputStream()); %>