How to pass arguments to JNLP launched Swing application?

Question

I need to open a Java Swing application at client side on calling a servlet. Few arguments are also required to be received at the main method of that Swing application which gets opened via JNLP at a client browser. In my case the swing app is getting opened but no arguments are be received in anyway.

My JNLP file is not dynamically built. It is a static file. Here it is:

<?xml version="1.0" encoding="utf-8"?>
<jnlp spec="1.0+" 
      codebase="http://localhost:8085/TestWebApp" 
      href="ContactEditor.jnlp">

    <information>
        <title>JNLP Example</title>
        <vendor>Catalyst Software</vendor>
        <homepage href="http://localhost:8085/TestWebApp" />
        <description>JNLP Testing</description>
    </information>

    <security>
        <all-permissions/>
    </security>

    <resources>
        <j2se version="1.6+" />
        <jar href="ContactEditor.jar" />
    </resources>

    <application-desc main-class="my.contacteditor.ContactEditorUI">
        <argument>00001</argument>
        <argument>Harish Prasad</argument>
        <argument>220153429088</argument>
    </application-desc>    

    <security>
        <all-permissions/>
    </security>

</jnlp>

Please suggest how to pass arguments dynamically from the servlet to the swing application.

My questions are:

1. What code do I have to write at my Swing program?
2. What do I have to mention in the JNLP file?
3. How should I pass the values from the servlet?

Answer 1

1. The JNLP File Syntax specifies that "Each argument contains (in order) an additional argument to be passed to main."

   public static void main(String[] args) { 
       for (String value : args) {
           …
       }
   }
   

2. Your <argument>syntax appears correct, as specified here; the <security> element appears twice, as noted here; verify the syntax as noted here by @AndrewThompson.

3. You'll need to construct the JNLP file dynamically, as discussed here.