How to make a JNLP file take dynamic parameter

[Ket Nonting]

Hi,
This JNLP snippet from Oracle tutorial web site takes static parameters from the admin commands.

<?xml version="1.0" encoding="UTF-8"?>
<jnlp spec="1.0+" codebase="" href="">
    ...
    <applet-desc
         name="Applet Takes Params"
         main-class="AppletTakesParams"
         width="800"
         height="50">
             <param name="paramStr" value="someString"/>
             <param name="paramInt" value="22"/>
     </applet-desc>
     ...
</jnlp>

I'm wondering if it could take parameters from user input like string variables.

To make it clear, my applet would take variables from user input and display those values on the display panel.

I've no problem with a normal applet, it works fine. But how do I make the JNLP file does the same.
My normal applet's approach is:

<param name="String" value="' +Strings '"/>

It's triggered by javascript.

Thanks in advance

[Paul Clapham]

You will recall that a JNLP file is downloaded from the server. So the server would have to generate the JNLP file and set the parameter appropriately.

[Ket Nonting]

Thanks Paul,

Can you please elaborate a little more. I do not understand this.

[Tim Moores]

The JNLP could be generated by a JSP (or PHP) page which takes user input through an HTML form submit.

[Ket Nonting]

Thanks Tim,
Here's my PHP file, which works fine for a normal applet:

$applet = "
	<applet 
		archive='applet/Index.jar' 
			code='Index.class' 
			width=600 height=400
		>
		<param name='String' value='images/random/" . $random . ".jpg'>
	</applet>
";
echo $applet;

Here the javascript to trigger a JNLP file

$script = "
	<script> 
		var attributes = { 
			codebase:'',
			code:'Index.class',
			archive:'applet/Index.jar', 
			width:600, height:400
		} ;
		var parameters = {jnlp_href: 'Index.jnlp'} ;
		var version = '1.6' ;
		deployJava.runApplet(attributes, parameters, version); 
	</script>
";
echo $script;

and the JNLP file

<?xml version="1.0" encoding="UTF-8"?>
<jnlp spec="1.0+" codebase="" href="Index.jnlp">
    <information>
        <title>image</title>
        <vendor>mywebsite.com</vendor>
    </information>
    <resources>
        <!-- Application Resources -->
        <j2se version="1.6+" href="http://java.sun.com/products/autodl/j2se" />
        <jar href="applet/Index.jar" main="true" />
    </resources>
	<security>
		<all-permissions />
	</security>
    <applet-desc
		documentBase="applet/Index.jar"
		name="Index Image"
		main-class="Index"
		width="600"
		height="400">
		<param name='String' value='images/random/' .$random. '.jpg'>
	</applet-desc>
	<update check="background"/>
</jnlp>

So how do make the JNLP file take string parameter? It would work just fine if I do it like this:

<param name='String' value='images/random/flower.jpg'>

[Tim Moores]

I'm not sure what you're asking - where do you see the difference between the page with the explicit applet tag and the one with the JNLP applet? Both can easily be served by PHP, and would get the value of the "random" string in the same way, in whichever way that works.

[Ket Nonting]

The problem is here:

<param name='String' value='images/random/' .$random. '.jpg'>

On the JNLP file. It does not work. This is the only line I struggle with.

[Ket Nonting]

YEEEEHA! I solved it.

this thing stupid