Question

如果在给定时间段内页面上没有活动，我该如何自动重新加载网页？

Answer 1

如果您想在没有活动的情况下刷新页面，那么您需要弄清楚如何定义活动。假设我们每分钟刷新一次页面，除非有人按下某个键或移动鼠标。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>

Answer 2

这可以在没有javascript的情况下完成，使用此metatag：

<meta http-equiv="refresh" content="5" >

其中content =“5”是页面等待刷新的秒数。

但是你说只有在没有活动的情况下，活动会是什么样的？

Answer 3

我已经构建了一个完整的javascript解决方案，不需要jquery。可能会把它变成一个插件。我用它来进行液体自动清新，但看起来它可以帮助你。

JSFiddle AutoRefresh

var refresh_rate = 200; //<-- In seconds, change to your needs
var last_user_action = 0;
var has_focus = false;
var lost_focus_count = 0;
var focus_margin = 10; // If we lose focus more then the margin we want to refresh


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");
}

setInterval(function () {
    last_user_action++;
    refreshCheck();
}, 1000);

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);

Answer 4

<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（），否则上面每10分钟刷新一次页面。例如：

<a href="javascript:;" onclick="resetTimeout();">clicky</a>

Answer 5

基于arturnt接受的答案。这是一个稍微优化的版本，但基本上是相同的：

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，这使代码更紧凑。

Answer 6

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();
    }
}

每次移动鼠标时，都会检查上次移动鼠标的时间。如果时间间隔大于20'，它将重新加载页面，否则它将更新你最后一次移动的鼠标。

Answer 7

使用JavaScript setInterval方法：

setInterval(function(){ location.reload(); }, 3000);

Answer 8

使用您选择的目标自动重新加载。在这种情况下，目标是_self设置为自身，但您只需将window.open('self.location', '_self');代码更改为此示例window.top.location="window.open('http://www.YourPageAdress.com', '_self'";，就可以更改重新加载页面。

使用确认ALERT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>

没有确认提醒：

<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>

正文代码是两种解决方案的相同内容：

<body onLoad="set_interval(); document.form1.exp_dat.focus();" onKeyPress="reset_interval();" onmousemove="reset_interval();" onclick="reset_interval();" onscroll="reset_interval();">

Answer 9

使用html标题部分

中的代码非常容易使用此任务

<head> <meta http-equiv="refresh" content="30" /> </head>

它将在30秒后刷新您的页面。

Answer 10

是的亲爱的，那么你必须使用Ajax技术。改变内容特别的html标签：

 <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>

Answer 11

我认为activity是用户是否专注于窗口。例如，当您从一个窗口点击另一个窗口（例如Google Chrome到iTunes，或者在互联网浏览器中用Tab 1到Tab 2）时，该网页可以发送一个回复，说“我失去了焦点！”或“我在焦点！”。可以使用jQuery来利用这种可能的缺乏活动来做任何他们想做的事情。如果我在你的位置，我将使用以下代码每5秒检查焦点等，如果没有焦点则重新加载。

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

Answer 12

使用页面确认文本而非警告

由于这是自动加载的另一种方法，如果不活动，我给它第二个答案。这个更简单，更容易理解。

在页面上重新加载确认

<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>

使用页面确认时的确认框

<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>

两者的正文代码是相同的

<body onmousedown="resetTimeout();" onmouseup="resetTimeout();" onmousemove="resetTimeout();" onkeydown="resetTimeout();" onload="timeoutObject=setTimeout('promptForClose()',timePeriod);">

注意：如果您不想进行网页确认，请使用不经过确认

<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>

Answer 13

最后是最简单的解决方案：

使用提醒确认：

<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>

没有提醒确认：

<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>

正文代码是两种解决方案的相同

<body onload="StartTimers();" onmousemove="ResetTimers();" onKeyPress="ResetTimers();">

Answer 14

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，该函数将交互的最后时间保存为毫秒（字符串）

const saveLastInteraction = () => window.localStorage.setItem('last', Date.now().toString())

我们将需要在浏览器中监听beforeunload事件，以清除我们的lastinteraction记录，这样我们才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，我们将存储最后一次互动时间

window.addEventListener('mousemove', saveLastInteraction)
window.addEventListener('keypress', saveLastInteraction)

要设置最终的侦听器，我们将使用load事件。在页面加载时，我们使用setInterval函数来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))

Answer 15

我正在这样做：

let lastActionTaken = new Date().getTime();
function checkLastAction() {
  let now = new Date().getTime();
  if (now - lastActionTaken > 1000 * 60 * 60) window.location.reload();
  else lastActionTaken = now;
}
window.addEventListener("mousemove", checkLastAction);
window.addEventListener("touchstart", checkLastAction);
window.addEventListener("keydown", checkLastAction);

如果用户移动鼠标，敲击按键或触摸屏（如果已不活动1小时），它将立即重新加载页面。另外，这也要照顾focus，因此，如果用户在其他程序中移动鼠标然后返回到window，它将重新加载，这很不错，因为重点是没有显示旧数据。

如何在一段时间不活动后自动重新加载页面

15 个答案: