105

如何通过单击按钮在默认浏览器中打开链接，如下所示

button.addActionListener(new ActionListener() {
    public void actionPerformed(ActionEvent e) {
        open("www.google.com"); // just what is the 'open' method?
    }
});

?

4

7 回答 7

229

使用Desktop#browse(URI)方法。它在用户的默认浏览器中打开一个 URI。

public static boolean openWebpage(URI uri) {
    Desktop desktop = Desktop.isDesktopSupported() ? Desktop.getDesktop() : null;
    if (desktop != null && desktop.isSupported(Desktop.Action.BROWSE)) {
        try {
            desktop.browse(uri);
            return true;
        } catch (Exception e) {
            e.printStackTrace();
        }
    }
    return false;
}

public static boolean openWebpage(URL url) {
    try {
        return openWebpage(url.toURI());
    } catch (URISyntaxException e) {
        e.printStackTrace();
    }
    return false;
}
于 2012-06-10T08:55:28.970 回答
37 
public static void openWebpage(String urlString) {
    try {
        Desktop.getDesktop().browse(new URL(urlString).toURI());
    } catch (Exception e) {
        e.printStackTrace();
    }
}
于 2013-06-02T02:32:05.533 回答
25 
try {
    Desktop.getDesktop().browse(new URL("http://www.google.com").toURI());
} catch (Exception e) {}

注意：您必须包括必要的进口java.net

于 2013-08-19T17:37:51.900 回答
5

没有桌面环境的解决方案是BrowserLauncher2。这个解决方案在 Linux 上更通用，桌面并不总是可用。

冗长的答案发布在https://stackoverflow.com/a/21676290/873282

于 2015-06-21T12:07:18.533 回答
4 
private void ButtonOpenWebActionPerformed(java.awt.event.ActionEvent evt) {                                         
    try {
        String url = "https://www.google.com";
        java.awt.Desktop.getDesktop().browse(java.net.URI.create(url));
    } catch (java.io.IOException e) {
        System.out.println(e.getMessage());
    }
}
于 2017-05-20T06:28:14.387 回答
1

我知道这是一个老问题，但有时会Desktop.getDesktop()产生像 Ubuntu 18.04 一样的意外崩溃。因此，我必须像这样重写我的代码：

public static void openURL(String domain)
{
    String url = "https://" + domain;
    Runtime rt = Runtime.getRuntime();
    try {
        if (MUtils.isWindows()) {
            rt.exec("rundll32 url.dll,FileProtocolHandler " + url).waitFor();
            Debug.log("Browser: " + url);
        } else if (MUtils.isMac()) {
            String[] cmd = {"open", url};
            rt.exec(cmd).waitFor();
            Debug.log("Browser: " + url);
        } else if (MUtils.isUnix()) {
            String[] cmd = {"xdg-open", url};
            rt.exec(cmd).waitFor();
            Debug.log("Browser: " + url);
        } else {
            try {
                throw new IllegalStateException();
            } catch (IllegalStateException e1) {
                MUtils.alertMessage(Lang.get("desktop.not.supported"), MainPn.getMainPn());
                e1.printStackTrace();
            }
        }
    } catch (IOException | InterruptedException e) {
        e.printStackTrace();
    }
}

public static boolean isWindows()
{
    return OS.contains("win");
}

public static boolean isMac()
{
    return OS.contains("mac");
}

public static boolean isUnix()
{
    return OS.contains("nix") || OS.contains("nux") || OS.indexOf("aix") > 0;
}

然后我们可以从实例中调用这个助手：

button.addActionListener(new ActionListener() {
    public void actionPerformed(ActionEvent e) {
        MUtils.openURL("www.google.com"); // just what is the 'open' method?
    }
});
于 2018-08-09T04:31:01.140 回答
0 
public static void openWebPage(String url) {
    try {
        Desktop desktop = Desktop.isDesktopSupported() ? Desktop.getDesktop() : null;
        if (desktop != null && desktop.isSupported(Desktop.Action.BROWSE)) {
            desktop.browse(new URI(url));
        }
        throw new NullPointerException();
    } catch (Exception e) {
        JOptionPane.showMessageDialog(null, url, "", JOptionPane.PLAIN_MESSAGE);
    }
}
于 2017-11-21T12:42:10.853 回答