从Web应用程序显示系统任务栏通知或桌面通知

Question

I have created a web application in Java using J2EE 6.0 that has login functionality. As the user logs in into the application, a timer start at 59:59 (minutes:seconds) and keeps on decreasing until it comes to 3:00. When 3 minutes are left, it displays a popup to the user asking to logout or extend their time/session again back to 59:59.

My question is if user is doing some other work say on outlook or surfing some other thing over the internet in a new window/browser(Firefox,etc.). How can I notify the user that his session/time is going to expire. This application is intended to run only on Microsoft Windows Internet Explorer .

I found these links for displaying desktop notifications but unfortunately my application is specific to run on Internet Explorer only

What ways are out there to display a desktop notification from a web app?

How do Stack Overflow desktop notifications work?

So I cannot use Desktop notifications.

I thought I would create a swing application to display the notification popup in the Windows System Tray saying 'Your session is going to expire'. But I am stucked how will it run on the client machine. I have heard of something called Java Web Start , AjaxSwing , etc. With Java Web Start software, users can launch a Java application by clicking a link in a web page. It requires JRE in the client system. Java Web Start will ask the user to download the Java plugin which will download a JRE(if not found in the client's system) which is annoying.

AjaxSwing will convert the Swing app to HTML, Javascript and CSS so I am not sure how it will come out of a browser to show up a popup in System Tray. I think that will remain stick to the browser.

I searched for blinking the tab option but it is not blinking the tab in the taskbar of the windows.

I read somewhere Growl for Windows but I am not sure whether it will be helpful for me or not. Please tell that also. Please suggest me how can I notify the user that his session is going to expire. I already know I can notify through the email . Please help me with an innovative idea and solution to pursue further.

Answer 1

我遇到了同样的问题，并使用了jQuery通知插件作为解决方法，您也可以在插件回调中使用“ onShow”播放声音或确保用户得到通知的任何方法

Answer 2

try it for Google Chrome:

function notifyBrowser(title, desc, url) {
    if (Notification.permission !== "granted") {
        Notification.requestPermission();
    } else {
        var notification = new Notification(title, {
            icon: 'http://YourWebsite.com/logo.png',
            body: desc,
        });
        /* Remove the notification from Notification Center when clicked.*/
        notification.onclick = function() {
            window.open(url);
        };
        /* Callback function when the notification is closed. */
        notification.onclose = function() {
            console.log('Notification closed');
        };
    }
}

And so, only call the function :

notifyBrowser('Pay attention', 'You have new notifications', 'www.stackoverflow.com');

font: http://www.9lessons.info/2015/11/display-browser-notifications-from-web.html