session失效时中间等待页面跳转至登录页面

最新推荐文章于 2023-11-30 15:11:00 发布

原创最新推荐文章于 2023-11-30 15:11:00 发布 · 988 阅读

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#session #function #path #html #string #div

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本文介绍了一个使用Java Web技术创建动态进度条的过程，通过定时更新页面元素来模拟任务进度，适用于用户信息过期后的页面跳转提示场景。文中详细展示了如何利用HTML、JavaScript和JSP实现进度条的动态更新，并提供了完整的代码示例。

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<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%>
<%
String path = request.getContextPath();
String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
%>

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
    <base href="<%=basePath%>">
    <title>中间等待页面</title>
<script type="text/javascript">
var ie5 = (document.all && document.getElementsByTagName);
var step = 0;
function setSB(v, el, inforEl, message) {
if (ie5 || document.readyState == "complete") {
filterEl = el.children[0];
valueEl = el.children[1];

if (filterEl.style.pixelWidth > 0) {
var filterBackup = filterEl.style.filter;
filterEl.style.filter = "";
filterEl.style.filter = filterBackup;
}

filterEl.style.width = v + "%";
valueEl.innerText = v + "%";
inforEl.innerText = message;
}
}
function setSBByStep(v, el, inforEl, message) {
if (ie5 || document.readyState == "complete") {
step = step + v;
filterEl = el.children[0];
valueEl = el.children[1];

if (filterEl.style.pixelWidth > 0) {
var filterBackup = filterEl.style.filter;
filterEl.style.filter = "";
filterEl.style.filter = filterBackup;
}

filterEl.style.width = step + "%";
valueEl.innerText = step + "%"
inforEl.innerText = message;
}
}

function fakeProgress(v, el) {
if (v >= 101)
top.location.href='<%=path%>'+"/index.jsp";
else {
setSB(v, el, infor, "用户信息已过期，页面跳转中，请稍等！");
window.setTimeout("fakeProgress(" + (v + 1) + ", document.all['" + el.id + "'])", 100);
}
}
</script>

</head>

<body onload=fakeProgress(0,sb)>
<DIV align=center>
<DIV id=sb
style="BORDER-RIGHT: #ffffff 1px solid; BORDER-TOP: #ffffff 1px solid; BACKGROUND: #99ccff; BORDER-LEFT: medium none; WIDTH: 400px; BORDER-BOTTOM: #cccccc 1px solid; HEIGHT: 14px; TEXT-ALIGN: left">
<DIV id=sbChild1
style="FILTER: Alpha(Opacity=0, FinishOpacity=80, Style=1, StartX=0, StartY=0, FinishX=100, FinishY=0); OVERFLOW: hidden; WIDTH: 100%; POSITION: absolute; HEIGHT: 12px">
<DIV style="BACKGROUND: #000000; WIDTH: 100%; height:12px; overflow:hidden"></DIV></DIV>
<DIV
style="FONT-SIZE: 10px; WIDTH: 400px; COLOR: white; FONT-FAMILY: arial; POSITION: absolute; HEIGHT: 14px; TEXT-ALIGN: center"></DIV></DIV>
<P></P>
<DIV id=infor
style="FONT-SIZE: 11px; WIDTH: 100%; COLOR: #999999; FONT-FAMILY: arial; POSITION: relative; HEIGHT: 14px; TEXT-ALIGN: center"></DIV></DIV>
</body>
</html>