Launch Web Browser From Java Application

Opening a web browser from a Java application.

Bare Bones Browser is a great tool for opening a web browser on a given URL from a Java / Swing application.

Step 1 – Firstly create an empty class called BareBonesBrowserLaunch.java.

Copy and paste the entire section of code below into the class:

/////////////////////////////////////////////////////////
//  Bare Bones Browser Launch                          //
//  Version 1.5 (December 10, 2005)                    //
//  By Dem Pilafian                                    //
//  Supports: Mac OS X, GNU/Linux, Unix, Windows XP    //
//  Example Usage:                                     //
//     String url = “http://www.centerkey.com/”;       //
//     BareBonesBrowserLaunch.openURL(url);            //
//  Public Domain Software — Free to Use as You Like  //
/////////////////////////////////////////////////////////

import java.lang.reflect.Method;
import javax.swing.JOptionPane;

public class BareBonesBrowserLaunch {

private static final String errMsg = “Error attempting to launch web browser”;

public static void openURL(String url) {
String osName = System.getProperty(“os.name”);
try {
if (osName.startsWith(“Mac OS”)) {
Class fileMgr = Class.forName(“com.apple.eio.FileManager”);
Method openURL = fileMgr.getDeclaredMethod(“openURL”,
new Class[] {String.class});
openURL.invoke(null, new Object[] {url});
}
else if (osName.startsWith(“Windows”))
Runtime.getRuntime().exec(“rundll32 url.dll,FileProtocolHandler ” + url);
else { //assume Unix or Linux
String[] browsers = {
“firefox”, “opera”, “konqueror”, “epiphany”, “mozilla”, “netscape” };
String browser = null;
for (int count = 0; count < browsers.length && browser == null; count++)
if (Runtime.getRuntime().exec(
new String[] {“which”, browsers[count]}).waitFor() == 0)
browser = browsers[count];
if (browser == null)
throw new Exception(“Could not find web browser”);
else
Runtime.getRuntime().exec(new String[] {browser, url});
}
}
catch (Exception e) {
JOptionPane.showMessageDialog(null, errMsg + “:\n” + e.getLocalizedMessage());
}
}

}

Step 2 – To open the web browser from an application, you need to call the  BareBonesBrowserLaunch.openURL() method.

The following example shows the basic call:

String URL = “www.google.co.uk”;
BareBonesBrowserLaunch.openURL(URL);

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