Java Swing : perform action when video is finished

标签 java swing youtube djnativeswing jwebbrowser

我嵌入了一个 YouTube 视频，如图 here 。现在我希望视频结束后发生一些事情。

我想困难的方法是将视频下载为对象等。

有没有更简单的方法？

如有任何帮助，我们将不胜感激。

最佳答案

来自 The DJ project 的 JWebBrowser 组件如 very nice example 中使用的通过 Jk1支持监听器，您可以添加监听器以接收浏览器事件。您可以使用这些事件来搜索指示视频已完成的特定事件。这取决于 YouTube 的工作方式，这可能取决于平台/浏览器，并且会随着时间的推移而改变。所以这里没有硬科学，但也许这种方法足以满足您的情况。

这里是上述示例的修改后的代码，它添加了浏览器事件的监听器(仅实现十个可用的 WebBrowserListener 方法中的两个)和一些日志记录。我用过DJNativeSwing-SWT-1-0-2和 swt-4.5-win32-win32-x86_64 :

import java.awt.*;
import java.text.*;
import java.util.*;
import javax.swing.*;
import chrriis.dj.nativeswing.swtimpl.*;
import chrriis.dj.nativeswing.swtimpl.components.*;

public class YouTubeViewerV2 {
    private static final DateFormat DATE_FORMAT = new SimpleDateFormat("mm:ss.SSS");

    private JWebBrowser webBrowser;

    public static void main(String[] arguments) {
        new YouTubeViewerV2().createAndShowGui();
    }

    private void createAndShowGui() {
        NativeInterface.open();

        SwingUtilities.invokeLater(new Runnable() {
            public void run() {
                JFrame frame = new JFrame("YouTube Viewer");
                frame.setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE);
                frame.getContentPane().add(getBrowserPanel(), BorderLayout.CENTER);
                frame.setSize(800, 600);
                frame.setLocationByPlatform(true);
                frame.setVisible(true);
            }
        });

        NativeInterface.runEventPump();

        // Don't forget to properly close native components.
        Runtime.getRuntime().addShutdownHook(new Thread(new Runnable() {
            @Override
            public void run() {
                NativeInterface.close();
            }
        }));
    }

    private JPanel getBrowserPanel() {
        JPanel webBrowserPanel = new JPanel(new BorderLayout());

        webBrowser = new JWebBrowser();
        webBrowser.setBarsVisible(false);
        //webBrowser.navigate("https://www.youtube.com/v/b-Cr0EWwaTk?fs=1");
        webBrowser.navigate("https://youtu.be/RnqAXuLZlaE?t=3m7s");
        webBrowser.addWebBrowserListener(getBrowserListener());

        webBrowserPanel.add(webBrowser, BorderLayout.CENTER);

        return webBrowserPanel;
    }

    private WebBrowserListener getBrowserListener() {
        return new WebBrowserAdapter() {
            @Override
            public void loadingProgressChanged(WebBrowserEvent e) {
                log("Loading progress changed: " + webBrowser.getLoadingProgress());
                log("");
            }

            @Override
            public void statusChanged(WebBrowserEvent e) {
                log("Status changed - text: " + webBrowser.getStatusText());
                log("Status changed - location: " + webBrowser.getResourceLocation());
                log("");
            }
        };
    }

    private void log(String line) {
        System.out.println("[" + DATE_FORMAT.format(new Date()) + "] " + line);
    }
}

这是一个简短测试的输出:

[00:23.489] Status changed - text: Done
[00:23.500] Status changed - location: about:blank
[00:23.500] 
[00:23.585] Loading progress changed: 0
[00:23.585] 
[00:23.586] Status changed - text: Waiting for https://youtu.be/RnqAXuLZlaE?t=3m7s...
[00:23.587] Status changed - location: about:blank
[00:23.587] 
[00:23.691] Loading progress changed: 0
[00:23.692] 
[00:23.704] Status changed - text: Waiting for https://www.youtube.com/watch?v=RnqAXuLZlaE&feature=youtu.be&t=3m7s...
[00:23.707] Status changed - text: 
[00:23.903] Status changed - text: Waiting for https://www.youtube.com/watch?v=RnqAXuLZlaE&feature=youtu.be&t=3m7s...
[00:23.913] Status changed - location: https://www.youtube.com/watch?v=RnqAXuLZlaE&feature=youtu.be&t=3m7s
[00:23.913] 
[00:23.913] Status changed - location: https://www.youtube.com/watch?v=RnqAXuLZlaE&feature=youtu.be&t=3m7s
[00:23.913] 
[00:23.913] Status changed - location: https://www.youtube.com/watch?v=RnqAXuLZlaE&feature=youtu.be&t=3m7s
[00:23.913] 
[00:23.997] Status changed - text: Done
[00:23.997] Loading progress changed: 100
[00:23.997] 
[00:24.039] Status changed - text: Waiting for https://www.youtube.com/watch?v=RnqAXuLZlaE&feature=youtu.be&t=3m7s...
[00:24.042] Status changed - location: https://www.youtube.com/watch?v=RnqAXuLZlaE&feature=youtu.be&t=3m7s
[00:24.042] 
[00:24.042] Status changed - location: https://www.youtube.com/watch?v=RnqAXuLZlaE&feature=youtu.be&t=3m7s
[00:24.042] 
[00:24.088] Status changed - text: Done
[00:24.124] Status changed - text: Waiting for https://www.youtube.com/watch?v=RnqAXuLZlaE&feature=youtu.be&t=3m7s...
[00:24.140] Status changed - text: Waiting for javascript:""...
[00:24.143] Status changed - text: Done
[00:24.155] Loading progress changed: 100
[00:24.155] 
[00:24.178] Status changed - location: https://www.youtube.com/watch?v=RnqAXuLZlaE&feature=youtu.be&t=3m7s
[00:24.178] 
[00:24.178] Status changed - location: https://www.youtube.com/watch?v=RnqAXuLZlaE&feature=youtu.be&t=3m7s
[00:24.178] 
[00:24.178] Status changed - location: https://www.youtube.com/watch?v=RnqAXuLZlaE&feature=youtu.be&t=3m7s
[00:24.178] 
[00:24.178] Status changed - location: https://www.youtube.com/watch?v=RnqAXuLZlaE&feature=youtu.be&t=3m7s
[00:24.178] 
[00:24.404] Status changed - text: Downloading picture data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAoAAAAKCAQAAAAnOwc2AAAABGdBTUEAALGPC/xhBQAAACBjSFJNAAB6JQAAgIMAAPn/AACA6QAAdTAAAOpgAAA6mAAAF2+SX8VGAAAAAmJLR0QA/4ePzL8AAADdSURBVAjXAdIALf8A27rb69t02wQAANsF23jb7Nu1AAAB2/UACvr9wqMgcyRgAIQACfb7L44DbgH7QAYDFCr7QQ5RAQ77/aLixgABAACbpzFSDwYAAAAA8fml44/dAKAAAAAAAMDP2//b/9v/pOsArQBVAAACAADbcRsXAAAAAAAAJQ1/CwCrAAAD23YAgwAR9fnQ8BAFDwYoIDQhsbEB2/QAC/v9nOCj2XUJTT8EAvb7L1sCAM33/KLhlN3robNUya74/Nr0AF0BAAAAkQAjAKcAqQD8AAQAWgBXANbCiVTrFOn0bgAAAABJRU5ErkJgg
[00:24.405] Status changed - text: Done
[00:24.630] Status changed - text: Downloading picture https://i.ytimg.com/vi/6qpudAhYhpc/default.jpg...
[00:24.636] Status changed - location: https://www.youtube.com/watch?v=RnqAXuLZlaE&feature=youtu.be&t=3m7s
[00:24.636] 
[00:24.636] Status changed - location: https://www.youtube.com/watch?v=RnqAXuLZlaE&feature=youtu.be&t=3m7s
[00:24.636] 
[00:24.636] Status changed - location: https://www.youtube.com/watch?v=RnqAXuLZlaE&feature=youtu.be&t=3m7s
[00:24.636] 
[00:24.686] Status changed - text: Waiting for https://googleads.g.doubleclick.net/pagead/html/r20151208/r20151221/zrt_lookup.html...
[00:24.736] Status changed - location: https://www.youtube.com/watch?v=RnqAXuLZlaE&feature=youtu.be&t=3m7s
[00:24.736] 
[00:24.740] Status changed - text: Done
[00:24.783] Loading progress changed: 100
[00:24.783] 
[00:24.803] Status changed - location: https://www.youtube.com/watch?v=RnqAXuLZlaE&feature=youtu.be&t=3m7s
[00:24.804] 
[00:24.805] Status changed - text: Downloading picture https://i1.ytimg.com/vi/6qpudAhYhpc/mqdefault.jpg...
[00:24.806] Status changed - text: Waiting for https://tpc.googlesyndication.com/safeframe/1-0-2/html/container.html...
[00:24.807] Status changed - location: https://www.youtube.com/watch?v=RnqAXuLZlaE&feature=youtu.be&t=3m7s
[00:24.807] 
[00:24.807] Status changed - location: https://www.youtube.com/watch?v=RnqAXuLZlaE&feature=youtu.be&t=3m7s
[00:24.807] 
[00:24.815] Status changed - text: Done
[00:24.826] Loading progress changed: 100
[00:24.826] 
[00:24.907] Status changed - location: https://www.youtube.com/watch?v=RnqAXuLZlaE&feature=youtu.be&t=3m7s
[00:24.907] 
[00:24.912] Status changed - text: Done
[00:24.924] Status changed - location: https://www.youtube.com/watch?v=RnqAXuLZlaE&feature=youtu.be&t=3m7s
[00:24.924] 
[00:24.936] Status changed - text: Downloading data https://static.doubleclick.net/instream/ad_status.js...
[00:24.936] Status changed - text: Downloading data https://googleads.g.doubleclick.net/pagead/lopri?ad_block=3&client=ca-pub-6219811747049371&output=js&adk=511001906&loeid=9407537%2C9416126%2C9417204%2C9420452%2C9422596%2C9422971%2C9423662%2C9424816%2C9425483%2C9426192%2C9426528&num_ads=1&channel=PyvWatchInRelated%2BPyvWatchNoAdX%2BPyvYTWatch%2BYtLoPri%2Bafv_user_id__5lECLhs_ceObgtoS6mWgw%2Bafv_user_sachinbpaul%2Bivp%2Bnon_lpw%2Bpw%2Byt_cid_9660960%2Byt_mpvid_YgeBBxZqHi7EIThs%2Byt_no_360%2Byt_no_ap%2Byt_no_cp%2Bytdevice_1%2Bytdevicever_1.2
[00:24.941] Status changed - text: Done
[00:25.153] Status changed - location: https://www.youtube.com/watch?v=RnqAXuLZlaE&feature=youtu.be&t=3m7s
[00:25.154] 
[00:25.154] Status changed - location: https://www.youtube.com/watch?v=RnqAXuLZlaE&feature=youtu.be&t=3m7s
[00:25.154] 
[00:25.154] Status changed - location: https://www.youtube.com/watch?v=RnqAXuLZlaE&feature=youtu.be&t=3m7s
[00:25.154] 
[00:25.156] Status changed - text: Done
[00:25.173] Loading progress changed: 0
[00:25.173] 
[00:25.185] Status changed - text: Waiting for https://googleads.g.doubleclick.net/pagead/ads?ad_block=2&client=ca-pub-6219811747049371&format=300x250_as&output=html&h=250&adk=3611498851&loeid=9407537%2C9416126%2C9417204%2C9420452%2C9422596%2C9422971%2C9423662%2C9424816%2C9425483%2C9426192%2C9426528&channel=0854550288%2BVertical_533%2BVertical_694%2BVertical_980%2Bafv_user_id__5lECLhs_ceObgtoS6mWgw%2Bafv_user_sachinbpaul%2Bivp%2Byt_cid_9660960%2Byt_mpvid_YgeBBxZqHi7EIThs%2Byt_no_360%2Byt_no_ap%2Byt_no_cp%2Bytdevice_1%2Bytdevicever_1.2015121
[00:25.191] Status changed - location: https://www.youtube.com/watch?v=RnqAXuLZlaE&feature=youtu.be&t=3m7s
[00:25.191] 
[00:25.191] Status changed - location: https://www.youtube.com/watch?v=RnqAXuLZlaE&feature=youtu.be&t=3m7s
[00:25.191] 
[00:25.196] Status changed - text: Waiting for https://googleads.g.doubleclick.net/pagead/ads?ad_block=2&client=ca-pub-6219811747049371&format=300x250_as&output=html&h=250&adk=3611498851&loeid=9407537%2C9416126%2C9417204%2C9420452%2C9422596%2C9422971%2C9423662%2C9424816%2C9425483%2C9426192%2C9426528&channel=0854550288%2BVertical_533%2BVertical_694%2BVertical_980%2Bafv_user_id__5lECLhs_ceObgtoS6mWgw%2Bafv_user_sachinbpaul%2Bivp%2Byt_cid_9660960%2Byt_mpvid_YgeBBxZqHi7EIThs%2Byt_no_360%2Byt_no_ap%2Byt_no_cp%2Bytdevice_1%2Bytdevicever_1.2015121
[00:25.197] Status changed - text: Waiting for https://tpc.googlesyndication.com/sodar/cTrvNaRi.html...
[00:25.201] Status changed - text: Done
[00:25.201] Loading progress changed: 100
[00:25.201] 
[00:25.241] Status changed - text: Waiting for https://googleads.g.doubleclick.net/pagead/ads?ad_block=2&client=ca-pub-6219811747049371&format=300x250_as&output=html&h=250&adk=3611498851&loeid=9407537%2C9416126%2C9417204%2C9420452%2C9422596%2C9422971%2C9423662%2C9424816%2C9425483%2C9426192%2C9426528&channel=0854550288%2BVertical_533%2BVertical_694%2BVertical_980%2Bafv_user_id__5lECLhs_ceObgtoS6mWgw%2Bafv_user_sachinbpaul%2Bivp%2Byt_cid_9660960%2Byt_mpvid_YgeBBxZqHi7EIThs%2Byt_no_360%2Byt_no_ap%2Byt_no_cp%2Bytdevice_1%2Bytdevicever_1.2015121
[00:25.255] Status changed - text: Downloading picture https://www.google.com/ads/measurement/l?ebcid=ALh7CaT7vATfx0ewCzZAOYdhOGzDMmKTx4JUrbIb4NCxlqK3oXVqnic5t2naN4OPAGZrf-GflriAroSrJgEUrJY5OusSw6j7IA...
[00:25.256] Status changed - text: Done
[00:25.547] Status changed - text: Waiting for https://googleads.g.doubleclick.net/pagead/ads?ad_block=2&client=ca-pub-6219811747049371&format=300x250_as&output=html&h=250&adk=3611498851&loeid=9407537%2C9416126%2C9417204%2C9420452%2C9422596%2C9422971%2C9423662%2C9424816%2C9425483%2C9426192%2C9426528&channel=0854550288%2BVertical_533%2BVertical_694%2BVertical_980%2Bafv_user_id__5lECLhs_ceObgtoS6mWgw%2Bafv_user_sachinbpaul%2Bivp%2Byt_cid_9660960%2Byt_mpvid_YgeBBxZqHi7EIThs%2Byt_no_360%2Byt_no_ap%2Byt_no_cp%2Bytdevice_1%2Bytdevicever_1.2015121
[00:25.557] Status changed - text: 
[00:25.565] Status changed - location: https://www.youtube.com/watch?v=RnqAXuLZlaE&feature=youtu.be&t=3m7s
[00:25.565] 
[00:25.565] Status changed - location: https://www.youtube.com/watch?v=RnqAXuLZlaE&feature=youtu.be&t=3m7s
[00:25.565] 
[00:25.565] Status changed - location: https://www.youtube.com/watch?v=RnqAXuLZlaE&feature=youtu.be&t=3m7s
[00:25.565] 
[00:25.565] Status changed - location: https://www.youtube.com/watch?v=RnqAXuLZlaE&feature=youtu.be&t=3m7s
[00:25.565] 
[00:25.565] Status changed - location: https://www.youtube.com/watch?v=RnqAXuLZlaE&feature=youtu.be&t=3m7s
[00:25.565] 
[00:25.565] Status changed - location: https://www.youtube.com/watch?v=RnqAXuLZlaE&feature=youtu.be&t=3m7s
[00:25.565] 
[00:25.565] Status changed - location: https://www.youtube.com/watch?v=RnqAXuLZlaE&feature=youtu.be&t=3m7s
[00:25.565] 
[00:25.565] Status changed - location: https://www.youtube.com/watch?v=RnqAXuLZlaE&feature=youtu.be&t=3m7s
[00:25.565] 
[00:25.579] Status changed - text: Start downloading from site: res://ieframe.dll/navcancl.htm
[00:25.579] Status changed - text: Downloading from site: res://ieframe.dll/navcancl.htm
[00:25.591] Status changed - text: 
[00:25.598] Status changed - text: Waiting for res://ieframe.dll/navcancl.htm...
[00:25.620] Status changed - text: Downloading picture res://ieframe.dll/background_gradient.jpg...
[00:25.620] Status changed - text: Done
[00:25.626] Status changed - location: https://www.youtube.com/watch?v=RnqAXuLZlaE&feature=youtu.be&t=3m7s
[00:25.626] 
[00:25.626] Status changed - location: https://www.youtube.com/watch?v=RnqAXuLZlaE&feature=youtu.be&t=3m7s
[00:25.626] 
[00:25.626] Status changed - location: https://www.youtube.com/watch?v=RnqAXuLZlaE&feature=youtu.be&t=3m7s
[00:25.626] 
[00:25.626] Status changed - location: https://www.youtube.com/watch?v=RnqAXuLZlaE&feature=youtu.be&t=3m7s
[00:25.626] 
[00:25.626] Status changed - location: https://www.youtube.com/watch?v=RnqAXuLZlaE&feature=youtu.be&t=3m7s
[00:25.626] 
[00:25.626] Status changed - location: https://www.youtube.com/watch?v=RnqAXuLZlaE&feature=youtu.be&t=3m7s
[00:25.626] 
[00:27.663] Status changed - text: Done
[00:27.705] Status changed - location: https://www.youtube.com/watch?v=RnqAXuLZlaE&feature=youtu.be&t=3m7s
[00:27.705] 
[00:30.895] Status changed - text: Downloading picture https://i1.ytimg.com/vi/6qpudAhYhpc/hqdefault.jpg...
[00:30.895] Status changed - location: https://www.youtube.com/watch?v=RnqAXuLZlaE&feature=youtu.be&t=3m7s
[00:30.895] 
[00:30.912] Loading progress changed: 4
[00:30.912] 
[00:30.994] Status changed - text: Downloading picture https://s.ytimg.com/yts/imgbin/www-sharing-vflKETXDP.png...
[00:30.997] Status changed - location: https://www.youtube.com/watch?v=RnqAXuLZlaE&feature=youtu.be&t=3m7s
[00:30.997]

在我的计算机上，statusChanged 事件的 webBrowser 字段的状态文本为“正在下载图片 res://ieframe.dll/background_gradient.jpg ...”似乎表明视频已完成。

关于Java Swing : perform action when video is finished，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/34457847/

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