image.jsp

一本jsp自学教材

<%@ page contentType="image/jpeg" import="javax.imageio.*" %>
<jsp:useBean id="image" scope="session" class="test.DRimage"/>
<%
//设置页面不缓存
out.clear();//加上这个东东
response.setHeader("Pragma","No-cache");
response.setHeader("Cache-Control","no-cache");
response.setDateHeader("Expires", 0);
// 将认证码存入SESSION
session.setAttribute("rand",image.sRand);
// 输出图象到页面
ImageIO.write(image.creatImage(), "JPEG", response.getOutputStream());
%>