How to solve the problem of session expiration in JSP by jumping to the login page and jumping out of the iframe-PHP开发-php.cn

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How to solve the problem of session expiration in JSP by jumping to the login page and jumping out of the iframe

高洛峰

Jan 07, 2017 am 09:41 AM

When the session expires, you can use filters to set up redirect pages

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(“login.jsp”) || url.endsWith(“loginAction.do”))) {
filterChain.doFilter(servletRequest, servletResponse);
} else {
req.getRequestDispatcher(“/newestlogin.jsp”).forward(req, res);
}
} else {
filterChain.doFilter(servletRequest, servletResponse);
}
}

Copy after login

, but this will not allow you to jump out of iframes and other frames.
Can be solved with javaScript

Add the following code between the page you want to control the jump to, such as login.jsp between and :

<script language=”JavaScript”> 
if (window != top) 
top.location.href = location.href; 
</script>

Copy after login

JS Refresh Frame Script Statement

//如何刷新包含该框架的页面用   
<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>   )
//如何刷新另一个框架的页面用   
<script language=JavaScript>
   parent.另一FrameID.location.reload();
</script>
如果想关闭窗口时刷新或者想开窗时刷新的话，在<body>中调用以下语句即可。
<body onload="opener.location.reload()"> 开窗时刷新
<body onUnload="opener.location.reload()"> 关闭时刷新
<script language="javascript">
window.opener.document.location.reload()
</script>

Copy after login

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