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PODynamic JNLP fetching file from server
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  1. PODynamic JNLP fetching file from server
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    copied!<p>I want to serve up a dynamic JNLP with customized launch <code>&lt;argument&gt;</code> tags for a user.</p> <p>After much hassle, it's almost working.</p> <p>The user logs into the site, downloads a JNLP which is customized for the user. Java Web Start launches using the downloaded, customized JNLP file.</p> <p>However, the first a user launches the app, Java Web Start fetches the "master" JNLP file from the server, by using the <code>href</code> attribute embedded in the .jnlp file. This doesn't contain the user's custom <code>&lt;argument&gt;</code> tag, and things break.</p> <p>Is there a way to tell JNLP to use the local JNLP file and not fetch it from the server?</p> <p>Here's my <code>APPLICATION_TEMPLATE.jnlp</code>:</p> <pre><code>&lt;?xml version="1.0" encoding="utf-8"?&gt; &lt;!DOCTYPE jnlp PUBLIC "-//Sun Microsystems, Inc//DTD JNLP Discriptor 1.5//EN" "http://java.sun.com/dtd/JNLP-1.5.dtd"&gt; &lt;jnlp spec="6.0+" codebase="http://localhost/jnlp" version="1234" href="http://localhost/jnlp/app.jnlp"&gt; &lt;information&gt; &lt;title&gt;JNLPHelper&lt;/title&gt; &lt;vendor&gt;Yoyodyne, Inc.&lt;/vendor&gt; &lt;offline-allowed/&gt; &lt;shortcut online="true" install="false"&gt; &lt;desktop/&gt; &lt;menu submenu="Yoyodyne, Inc."/&gt; &lt;/shortcut&gt; &lt;association extensions="jnlphelper" mime-type="application-x/jnlphelper"/&gt; &lt;/information&gt; &lt;security&gt; &lt;all-permissions/&gt; &lt;/security&gt; &lt;update check="timeout" policy="always"/&gt; &lt;resources&gt; &lt;java initial-heap-size="32M" max-heap-size="256M" version="1.6+"/&gt; &lt;!--&lt;j2se version="1.6+" java-vm-args="-esa -Xnoclassgc"/&gt;--&gt; &lt;jar href="JNLPHelper.jar"/&gt; &lt;/resources&gt; &lt;application-desc main-class="com.prosc.msi.jnlp.JNLPHelper"&gt; &lt;argument&gt;*&lt;/argument&gt; &lt;/application-desc&gt; &lt;/jnlp&gt; </code></pre> <p>This example file is hosted on my webserver, which during testing is <code>localhost</code>. The user downloads a customized JNLP with <code>&lt;argument&gt;foo&lt;/argument&gt;</code> replacing <code>&lt;argument&gt;*&lt;/argument&gt;</code>.</p> <p>I tried removing the <code>href</code> attribute entirely from the <code>&lt;jnlp&gt;</code> tag. This almost worked, but the application prompts to re-install itself each time, and my desktop icon is removed and re-added.</p>
 

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