weiyong
/
202012G04


			
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							<%@ page language="java"  pageEncoding="UTF-8"%>

<%

  //读取定义在web.xml文件中的全局参数DomainName，CookName
  String SSOLoginPage =request.getSession().getServletContext().getInitParameter("SSOLoginPage");
  String CookieName =request.getSession().getServletContext().getInitParameter("CookieName");
  //将大写字母变为小写并删除字符串的头尾空白符
  CookieName =CookieName.toLowerCase().trim();
  //创建一个Cookie数组对象，获得request请求发送过来的cookies
  Cookie[] cookies=  request.getCookies();
  //定义登录用的Cookie，初始值为null
  Cookie loginCookie =null;
  //定义登录用的cookname，初始值为""
  String cookname ="";
  //获取此欢迎页面的url路径，同时去除字符串最后的"/"
  String url =request.getRequestURL().toString();
  url=url.substring(0,url.length() -1);
  //判断request请求发送过来的cookies是否为空
  if(cookies!=null){
    //循环cookies数组
    for(Cookie cookie:cookies){
      //将大写字母变为小写并删除字符串的头尾空白符
      cookname =cookie.getName().trim().toLowerCase();
      //匹配密钥名称
      if(CookieName.equals(cookname)){
        //如果相同，给予登录用的密钥
        loginCookie =cookie;
        //跳出循环
        break;
      }
    }
  }
  //如果循环完成，没有匹配到密钥
  if(loginCookie==null){
    //则登录失败，重定向到登录页面
    response.sendRedirect(SSOLoginPage+"?goto="+url);
  }


%>

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
  <title>ssowebdemo1</title>
  <%--设置meta标签 清除页面缓存--%>
  <meta http-equiv="pragma" content="no-cache">
  <meta http-equiv="cache-control" content="no-cache">
  <meta http-equiv="expires" content="0">
  <meta http-equiv="keywords" content="keyword1,keyword2,keyword3">
  <meta http-equiv="description" content="This is my page">
</head>
<style>
  #btn1 {
    background-color: #62a8ea;
    border: none;
    width: 15%;
    height: 45px;
    line-height: 45px;
    color: white;
    cursor: pointer;
    font-size: 16px;
    font-weight: bold;
  }
  #btn1:hover {
    opacity: 0.8;
  }

</style>
<body>
<div align="center">
  <h1>这是第<b>一</b>个欢迎页面!</h1>
  <%--点击提交进入OutServlet进行判断--%>
  <form action="servlet/OutServlet?goto=<%=url%>" method="post">
    <button type="submit" id="btn1">退出登录</button>
  </form>
</div>

</body>
</html>