<%@ page contentType="image/jpeg" import="javax.imageio.*,java.awt.*,java.awt.image.*,java.util.*,javax.imageio.*,com.sun.image.codec.jpeg.JPEGCodec,com.sun.image.codec.jpeg.JPEGImageEncoder" %> <%@ page import="EHMWM.FUN.ValidateImage"%> <% //设置页面不缓存 response.setHeader("Pragma","No-cache"); response.setHeader("Cache-Control","no-cache"); response.setDateHeader("Expires", 0); ValidateImage image = new ValidateImage(); // 输出图象到页面,可用显示 out.clear(); //ImageIO.write(image.getValidateImage(), "JPEG", response.getOutputStream()); JPEGImageEncoder encoder = JPEGCodec.createJPEGEncoder(response.getOutputStream()); encoder.encode(image.getValidateImage()); // 将认证码存入SESSION session.setAttribute("validateCode", image.getRand()); //System.out.println(image.getRand()); %>