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<h2 title="Class BrowserLauncher" class="title">Class BrowserLauncher</h2>
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<li>java.lang.Object</li>
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<pre>public class <span class="typeNameLabel">BrowserLauncher</span>
extends java.lang.Object</pre>
<div class="block">BrowserLauncher is a class that provides one static method, openURL, which opens the default
web browser for the current user of the system to the given URL. It may support other
protocols depending on the system -- mailto, ftp, etc. -- but that has not been rigorously
tested and is not guaranteed to work.
<p>
Yes, this is platform-specific code, and yes, it may rely on classes on certain platforms
that are not part of the standard JDK. What we're trying to do, though, is to take something
that's frequently desirable but inherently platform-specific -- opening a default browser --
and allow programmers (you, for example) to do so without worrying about dropping into native
code or doing anything else similarly evil.
<p>
Anyway, this code is completely in Java and will run on all JDK 1.1-compliant systems without
modification or a need for additional libraries. All classes that are required on certain
platforms to allow this to run are dynamically loaded at runtime via reflection and, if not
found, will not cause this to do anything other than returning an error when opening the
browser.
<p>
There are certain system requirements for this class, as it's running through Runtime.exec(),
which is Java's way of making a native system call. Currently, this requires that a Macintosh
have a Finder which supports the GURL event, which is true for Mac OS 8.0 and 8.1 systems that
have the Internet Scripting AppleScript dictionary installed in the Scripting Additions folder
in the Extensions folder (which is installed by default as far as I know under Mac OS 8.0 and
8.1), and for all Mac OS 8.5 and later systems. On Windows, it only runs under Win32 systems
(Windows 95, 98, and NT 4.0, as well as later versions of all). On other systems, this drops
back from the inherently platform-sensitive concept of a default browser and simply attempts
to launch Netscape via a shell command.
<p>
This code is Copyright 1999-2001 by Eric Albert (ejalbert@cs.stanford.edu) and may be
redistributed or modified in any form without restrictions as long as the portion of this
comment from this paragraph through the end of the comment is not removed. The author
requests that he be notified of any application, applet, or other binary that makes use of
this code, but that's more out of curiosity than anything and is not required. This software
includes no warranty. The author is not repsonsible for any loss of data or functionality
or any adverse or unexpected effects of using this software.
<p>
Credits:
// * <br>Steven Spencer, JavaWorld magazine (<a href="http://www.javaworld.com/javaworld/javatips/jw-javatip66.html">Java Tip 66</a>)
<br>Thanks also to Ron B. Yeh, Eric Shmacapiro, Ben Engber, Paul Teitlebaum, Andrea Cantatore,
Larry Barowski, Trevor Bedzek, Frank Miedrich, and Ron Rabakukk</div>
<dl>
<dt><span class="simpleTagLabel">Version:</span></dt>
<dd>1.4b1 (Released June 20, 2001)</dd>
<dt><span class="simpleTagLabel">Author:</span></dt>
<dd>Eric Albert (<a href="mailto:ejalbert@cs.stanford.edu">ejalbert@cs.stanford.edu</a>)</dd>
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<td class="colFirst"><code>static void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../jam/util/BrowserLauncher.html#openURL-java.lang.String-">openURL</a></span>(java.lang.String url)</code>
<div class="block">Attempts to open the default web browser to the given URL.</div>
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<h4>openURL</h4>
<pre>public static void openURL(java.lang.String url)
throws java.io.IOException</pre>
<div class="block">Attempts to open the default web browser to the given URL.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>url</code> - The URL to open</dd>
<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code>java.io.IOException</code> - If the web browser could not be located or does not run</dd>
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