Getting Java Gui to Open a Webpage in Web Browser

Java GUI - Web Browser and Opening Link

To open a url in the system's web browser you can use java.awt.Desktop.browse(URI). This allows you to keep your Java code platform independent, and even allows you to check to see if an operation is supported before trying to use it.

To load a web page within Java, I've had some success using the JavaFX WebView.

How do you open web pages in Java?

Opening a web page with the default web browser is easy:

java.awt.Desktop.getDesktop().browse(theURI);

Embedding a browser is not so easy. JEditorPane has some HTML ability (if I remember my limited Swing-knowledge correctly), but it's very limited and not suiteable for a general-purpose browser.

Open a link in browser with java button?

Use the Desktop#browse(URI) method. It opens a URI in the user's default browser.

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;
}

How to put webpage into GUI windows in JAVA

You would need a web browser component for the rendering of your HTML.

See the thread here for a list of possible browser component.

You can see nice screenshots on the The DJ Project web page as well.

open a link in different browser java swing

Generally speaking, to open a link in the user's default browser you should really be using the more modern approach:

String url = "www.stackoverflow.com";
Desktop desktop = java.awt.Desktop.getDesktop();
desktop.browse(url);

No need to mess about with working out what OS you are running on (as your linked example attempts to do). Far better to let java.awt.Desktop take care of finding an appropriate browser or application to open the URL (see the documentation for more details).

There's also a part of the API that gracefully handles permissions and 'unusual' OS setups. If there is the possibility that your code will run under a restricted security policy or on a platform that may not have a browser, then you can check up front rather than wait for the exception from the call to browse.

// check if java.awt.Desktop is available on the current platform
java.awt.Desktop.isDesktopSupported();

// check the current platform and security policy will let you browse to a url
Desktop desktop = java.awt.Desktop.getDesktop();
desktop.isSupported(Desktop.Action.BROWSE);

Display a webpage inside a swing application

Use a JEditorPane:

JEditorPane jep = new JEditorPane();
jep.setEditable(false);   

try {
  jep.setPage("http://www.yoursite.com");
}catch (IOException e) {
  jep.setContentType("text/html");
  jep.setText("<html>Could not load</html>");
} 

JScrollPane scrollPane = new JScrollPane(jep);     
JFrame f = new JFrame("Test HTML");
f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
f.getContentPane().add(scrollPane);
f.setPreferredSize(new Dimension(800,600));
f.setVisible(true);

Display webpage inside swing application

With plain Swing you're out of luck for that. However, if you'd consider switching your technology stack there might be alternatives:

Java FX WebView
Eclipse SWT can embed native Browser widget.
CSSBox

For others you might want to check out Pure Java HTML viewer/renderer for use in a Scrollable pane