Answers:
如果要在没有活动的情况下刷新页面，则需要弄清楚如何定义活动。假设我们每分钟刷新一次页面，除非有人按下键或移动鼠标。这使用jQuery进行事件绑定：
<script>
var time = new Date().getTime();
$(document.body).bind("mousemove keypress", function(e) {
time = new Date().getTime();
});
function refresh() {
if(new Date().getTime() - time >= 60000)
window.location.reload(true);
else
setTimeout(refresh, 10000);
}
setTimeout(refresh, 10000);
</script>无需JavaScript，可以使用以下元标记来完成此操作：
<meta http-equiv="refresh" content="5" >其中content =“ 5”是页面将等待刷新的秒数。
但是您只说如果没有活动，那将是什么样的活动？
setInterval，很高兴知道这个存在！
我已经建立了一个完整的javascript解决方案，并且不需要jquery。可能可以将其变成插件。我将其用于流畅的自动刷新，但看起来它可以在这里为您提供帮助。
// Refresh Rate is how often you want to refresh the page
// bassed off the user inactivity.
var refresh_rate = 200; //<-- In seconds, change to your needs
var last_user_action = 0;
var has_focus = false;
var lost_focus_count = 0;
// If the user loses focus on the browser to many times
// we want to refresh anyway even if they are typing.
// This is so we don't get the browser locked into
// a state where the refresh never happens.
var focus_margin = 10;
// Reset the Timer on users last action
function reset() {
last_user_action = 0;
console.log("Reset");
}
function windowHasFocus() {
has_focus = true;
}
function windowLostFocus() {
has_focus = false;
lost_focus_count++;
console.log(lost_focus_count + " <~ Lost Focus");
}
// Count Down that executes ever second
setInterval(function () {
last_user_action++;
refreshCheck();
}, 1000);
// The code that checks if the window needs to reload
function refreshCheck() {
var focus = window.onfocus;
if ((last_user_action >= refresh_rate && !has_focus && document.readyState == "complete") || lost_focus_count > focus_margin) {
window.location.reload(); // If this is called no reset is needed
reset(); // We want to reset just to make sure the location reload is not called.
}
}
window.addEventListener("focus", windowHasFocus, false);
window.addEventListener("blur", windowLostFocus, false);
window.addEventListener("click", reset, false);
window.addEventListener("mousemove", reset, false);
window.addEventListener("keypress", reset, false);
window.addEventListener("scroll", reset, false);
document.addEventListener("touchMove", reset, false);
document.addEventListener("touchEnd", reset, false);<script type="text/javascript">
var timeout = setTimeout("location.reload(true);",600000);
function resetTimeout() {
clearTimeout(timeout);
timeout = setTimeout("location.reload(true);",600000);
}
</script>除非调用resetTimeout（），否则上面的代码每10分钟刷新一次页面。例如：
<a href="javascript:;" onclick="resetTimeout();">clicky</a>基于arturnt的公认答案。这是一个经过稍微优化的版本，但实际上具有相同的功能：
var time = new Date().getTime();
$(document.body).bind("mousemove keypress", function () {
time = new Date().getTime();
});
setInterval(function() {
if (new Date().getTime() - time >= 60000) {
window.location.reload(true);
}
}, 1000);唯一的区别是此版本使用setInterval代替setTimeout，从而使代码更紧凑。
1000使用计算间隔，将其设置为60000？
var bd = document.getElementsByTagName('body')[0];
var time = new Date().getTime();
bd.onmousemove = goLoad;
function goLoad() {
if(new Date().getTime() - time >= 1200000) {
time = new Date().getTime();
window.location.reload(true);
}else{
time = new Date().getTime();
}
}每次移动鼠标都会检查上一次移动鼠标的时间。如果时间间隔大于20分钟，它将重新加载页面，否则它将更新您上一次移动鼠标的时间。
自动加载您选择的目标。在这种情况下，将目标_self设置为其自身，但是您可以通过将window.open('self.location', '_self');代码更改为类似于本示例的方式来更改重新加载页面window.top.location="window.open('http://www.YourPageAdress.com', '_self'";。
带有一条确认警报消息：
<script language="JavaScript">
function set_interval() {
//the interval 'timer' is set as soon as the page loads
var timeoutMins = 1000 * 1 * 15; // 15 seconds
var timeout1Mins = 1000 * 1 * 13; // 13 seconds
itimer=setInterval("auto_logout()",timeoutMins);
atimer=setInterval("alert_idle()",timeout1Mins);
}
function reset_interval() {
var timeoutMins = 1000 * 1 * 15; // 15 seconds
var timeout1Mins = 1000 * 1 * 13; // 13 seconds
//resets the timer. The timer is reset on each of the below events:
// 1. mousemove 2. mouseclick 3. key press 4. scrolling
//first step: clear the existing timer
clearInterval(itimer);
clearInterval(atimer);
//second step: implement the timer again
itimer=setInterval("auto_logout()",timeoutMins);
atimer=setInterval("alert_idle()",timeout1Mins);
}
function alert_idle() {
var answer = confirm("Session About To Timeout\n\n You will be automatically logged out.\n Confirm to remain logged in.")
if (answer){
reset_interval();
}
else{
auto_logout();
}
}
function auto_logout() {
//this function will redirect the user to the logout script
window.open('self.location', '_self');
}
</script>没有确认警报：
<script language="JavaScript">
function set_interval() {
//the interval 'timer' is set as soon as the page loads
var timeoutMins = 1000 * 1 * 15; // 15 seconds
var timeout1Mins = 1000 * 1 * 13; // 13 seconds
itimer=setInterval("auto_logout()",timeoutMins);
}
function reset_interval() {
var timeoutMins = 1000 * 1 * 15; // 15 seconds
var timeout1Mins = 1000 * 1 * 13; // 13 seconds
//resets the timer. The timer is reset on each of the below events:
// 1. mousemove 2. mouseclick 3. key press 4. scrolling
//first step: clear the existing timer
clearInterval(itimer);
clearInterval(atimer);
//second step: implement the timer again
itimer=setInterval("auto_logout()",timeoutMins);
}
function auto_logout() {
//this function will redirect the user to the logout script
window.open('self.location', '_self');
}
</script>两种解决方案的主体代码相同：
<body onLoad="set_interval(); document.form1.exp_dat.focus();" onKeyPress="reset_interval();" onmousemove="reset_interval();" onclick="reset_interval();" onscroll="reset_interval();">使用JavaScript setInterval方法：
setInterval(function(){ location.reload(); }, 3000);是的，亲爱的，那么您必须使用Ajax技术。更改特定html标签的内容：
<html>
<head>
<script src="http://ajax.googleapis.com/ajax/libs/jquery/1.10.2/jquery.min.js"></script>
<title>Ajax Page</title>
<script>
setInterval(function () { autoloadpage(); }, 30000); // it will call the function autoload() after each 30 seconds.
function autoloadpage() {
$.ajax({
url: "URL of the destination page",
type: "POST",
success: function(data) {
$("div#wrapper").html(data); // here the wrapper is main div
}
});
}
</script>
</head>
<body>
<div id="wrapper">
contents will be changed automatically.
</div>
</body>
</html>我会考虑activity是否用户专注于窗口。例如，当您从一个窗口单击到另一个窗口（例如，从Internet浏览器中的Google Chrome浏览器到iTunes，或从选项卡1到选项卡2）时，该网页可以发送一个回调消息，说“我不在焦点！”。或“聚焦”！可以使用jQuery利用这种可能缺乏的活动来完成他们想要的任何事情。如果我在您的位置，我将使用以下代码每5秒检查一次焦点，以此类推，如果没有焦点，请重新加载。
var window_focus;
$(window).focus(function() {
window_focus = true;
}).blur(function() {
window_focus = false;
});
function checkReload(){
if(!window_focus){
location.reload(); // if not focused, reload
}
}
setInterval(checkReload, 5000); // check if not focused, every 5 seconds最后是最简单的解决方案：
带有警报确认：
<script type="text/javascript">
// Set timeout variables.
var timoutWarning = 3000; // Display warning in 1Mins.
var timoutNow = 4000; // Timeout in 2 mins.
var warningTimer;
var timeoutTimer;
// Start timers.
function StartTimers() {
warningTimer = setTimeout("IdleWarning()", timoutWarning);
timeoutTimer = setTimeout("IdleTimeout()", timoutNow);
}
// Reset timers.
function ResetTimers() {
clearTimeout(warningTimer);
clearTimeout(timeoutTimer);
StartTimers();
$("#timeout").dialog('close');
}
// Show idle timeout warning dialog.
function IdleWarning() {
var answer = confirm("Session About To Timeout\n\n You will be automatically logged out.\n Confirm to remain logged in.")
if (answer){
ResetTimers();
}
else{
IdleTimeout();
}
}
// Logout the user and auto reload or use this window.open('http://www.YourPageAdress.com', '_self'); to auto load a page.
function IdleTimeout() {
window.open(self.location,'_top');
}
</script>没有警报确认：
<script type="text/javascript">
// Set timeout variables.
var timoutWarning = 3000; // Display warning in 1Mins.
var timoutNow = 4000; // Timeout in 2 mins.
var warningTimer;
var timeoutTimer;
// Start timers.
function StartTimers() {
warningTimer = setTimeout(timoutWarning);
timeoutTimer = setTimeout("IdleTimeout()", timoutNow);
}
// Reset timers.
function ResetTimers() {
clearTimeout(warningTimer);
clearTimeout(timeoutTimer);
StartTimers();
$("#timeout").dialog('close');
}
// Logout the user and auto reload or use this window.open('http://www.YourPageAdress.com', '_self'); to auto load a page.
function IdleTimeout() {
window.open(self.location,'_top');
}
</script>两种解决方案的主体代码相同
<body onload="StartTimers();" onmousemove="ResetTimers();" onKeyPress="ResetTimers();">使用页面确认文本而不是警报
由于这是另一种在不活动时自动加载的方法，因此我给出了第二个答案。这个更简单，更容易理解。
在页面上有重新加载确认
<script language="javaScript" type="text/javascript">
<!--
var autoCloseTimer;
var timeoutObject;
var timePeriod = 5100; // 5,1 seconds
var warnPeriod = 5000; // 5 seconds
// Warning period should always be a bit shorter then time period
function promptForClose() {
autoCloseDiv.style.display = 'block';
autoCloseTimer = setTimeout("definitelyClose()", warnPeriod);
}
function autoClose() {
autoCloseDiv.style.display = 'block'; //shows message on page
autoCloseTimer = setTimeout("definitelyClose()", timePeriod); //starts countdown to closure
}
function cancelClose() {
clearTimeout(autoCloseTimer); //stops auto-close timer
autoCloseDiv.style.display = 'none'; //hides message
}
function resetTimeout() {
clearTimeout(timeoutObject); //stops timer
timeoutObject = setTimeout("promptForClose()", timePeriod); //restarts timer from 0
}
function definitelyClose() {
// If you use want targeted reload: parent.Iframe0.location.href = "https://URLHERE.com/"
// or this: window.open('http://www.YourPageAdress.com', '_self');
// of for the same page reload use: window.top.location=self.location;
// or window.open(self.location;, '_self');
window.top.location=self.location;
}
-->
</script>与页上确认一起使用时的确认框
<div class="leftcolNon">
<div id='autoCloseDiv' style="display:none">
<center>
<b>Inactivity warning!</b><br />
This page will Reloads automatically unless you hit 'Cancel.'</p>
<input type='button' value='Load' onclick='definitelyClose();' />
<input type='button' value='Cancel' onclick='cancelClose();' />
</center>
</div>
</div>两者的机构代码相同
<body onmousedown="resetTimeout();" onmouseup="resetTimeout();" onmousemove="resetTimeout();" onkeydown="resetTimeout();" onload="timeoutObject=setTimeout('promptForClose()',timePeriod);">注意：如果您不想在页面上进行确认，请使用“ 不进行确认”
<script language="javaScript" type="text/javascript">
<!--
var autoCloseTimer;
var timeoutObject;
var timePeriod = 5000; // 5 seconds
function resetTimeout() {
clearTimeout(timeoutObject); //stops timer
timeoutObject = setTimeout("definitelyClose()", timePeriod); //restarts timer from 0
}
function definitelyClose() {
// If you use want targeted reload: parent.Iframe0.location.href = "https://URLHERE.com/"
// or this: window.open('http://www.YourPageAdress.com', '_self');
// of for the same page reload use: window.top.location=self.location;
// or window.open(self.location;, '_self');
window.top.location=self.location;
}
-->
</script>使用LocalStorage跟踪上一次活动的时间，我们可以编写如下的reload函数
function reloadPage(expiryDurationMins) {
const lastInteraction = window.localStorage.getItem('lastinteraction')
if (!lastInteraction) return // no interaction recorded since page load
const inactiveDurationMins = (Date.now() - Number(lastInteraction)) / 60000
const pageExpired = inactiveDurationMins >= expiryDurationMins
if (pageExpired) window.location.reload()
}然后，我们创建一个箭头函数，以毫秒为单位保存上一次交互的时间（字符串）
const saveLastInteraction = () => window.localStorage.setItem('last', Date.now().toString())我们将需要beforeunload在浏览器中监听事件以清除lastinteraction记录，这样我们就不会陷入无限的重载循环中。
window.addEventListener('beforeunload', () => window.localStorage.removeItem('lastinteraction'))我们将需要监视的用户活动事件为mousemove和keypress。当用户移动鼠标或按下键盘上的键时，我们存储最后一次交互时间
window.addEventListener('mousemove', saveLastInteraction)
window.addEventListener('keypress', saveLastInteraction)要设置最终的侦听器，我们将使用该load事件。在页面加载时，我们使用该setInterval功能检查页面是否在一定时间后过期。
const expiryDurationMins = 1
window.addEventListener('load', setInterval.bind(null, reloadPage.bind(null, expiryDurationMins), 1000))html标题部分中的以下代码非常容易使用此任务
<head> <meta http-equiv="refresh" content="30" /> </head>30秒后，它将刷新您的页面。