%@ page import="com.zky.pub.*"%>
<%@ page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="utf-8"%>
<%@ page import="java.util.Date"%>
<%@ page import="com.zky.util.CheckCoderTool"%>
<%
response.setHeader("Cache-Control", "no-cache");
response.setHeader("Expires", "Thu,01 Jan 1970 00:00:01 GMT");
String checkCode = CheckCoderTool.randomChars(4);
session.setAttribute("c", checkCode);//验证码存入session中
long t = (new Date()).getTime();//确保每次刷新都生成新的验证码图片
%>
保密辅助业务管理系统