Jsp中解決session過期跳轉(zhuǎn)到登陸頁面并跳出iframe框架的方法

2024-09-05 00:21:52

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供稿：網(wǎng)友

這里我們是介紹一個(gè)網(wǎng)站管理后臺(tái)三個(gè)框架頁面當(dāng)我們的jsp定義的session變量超時(shí)時(shí)用戶點(diǎn)擊時(shí)自動(dòng)退出框架頁面并跳到登錄頁面去了，下面我來給大家演示一個(gè)實(shí)例

當(dāng)session過期后可以用過濾器來設(shè)置重定向頁面

復(fù)制代碼代碼如下:

public class ActionFilter extends HttpServlet implements Filter {
private FilterConfig filterConfig;
public void init(FilterConfig config) {
this.filterConfig = config;
}
public void doFilter(ServletRequest servletRequest, ServletResponse servletResponse, FilterChain filterChain) throws ServletException, IOException {
HttpServletRequest req = (HttpServletRequest) servletRequest;
servletRequest.setCharacterEncoding(“UTF-8″);
HttpServletResponse res = (HttpServletResponse) servletResponse;
String url = req.getRequestURI();
SysUserVOImpl user = (SysUserVOImpl) req.getSession().getAttribute(“SysUser”);
if (null == user) {
if (!COMMON.isEmpty(url) && (url.endsWith(“newestlogin.jsp”) || url.endsWith(“UserLoginAction.jsp”) || url.endsWith(“l(fā)ogin.jsp”) || url.endsWith(“l(fā)oginAction.do”))) {
filterChain.doFilter(servletRequest, servletResponse);
} else {
req.getRequestDispatcher(“/newestlogin.jsp”).forward(req, res);
}
} else {
filterChain.doFilter(servletRequest, servletResponse);
}
}

但是這樣不能不能跳出iframe等框架。
可以用javaScript解決
在你想控制跳轉(zhuǎn)的頁面，比如login.jsp中的<head>與</head>之間加入以下代碼：

復(fù)制代碼代碼如下:

JS刷新框架的腳本語句

復(fù)制代碼代碼如下:

//如何刷新包含該框架的頁面用
<script language=JavaScript>
   parent.location.reload();
</script>
//子窗口刷新父窗口
<script language=JavaScript>
    self.opener.location.reload();
</script>
(　或　<a href="javascript:opener.location.reload()">刷新</a>   )
//如何刷新另一個(gè)框架的頁面用
<script language=JavaScript>
   parent.另一FrameID.location.reload();
</script>
如果想關(guān)閉窗口時(shí)刷新或者想開窗時(shí)刷新的話，在<body>中調(diào)用以下語句即可。
<body> 開窗時(shí)刷新
<body onUnload="opener.location.reload()"> 關(guān)閉時(shí)刷新
<script language="javascript">
window.opener.document.location.reload()
</script>