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JNLP

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JNLP (Java Network Launch Protocol) is an XML-based protocol that can be used to deploy Java and JavaFX applications on the Internet.

Here is the JNLP file to deploy the JavaFXPad (http://download.java.net/general/openjfx/demos/javafxpad.jnlp):

<?xml version="1.0" encoding="utf-8"?>
<jnlp 
	spec="1.5+" 
        codebase="http://download.java.net/general/openjfx/demos"
	href="javafxpad.jnlp">
  <information>
    <title>JavaFX Demos:JavaFX Pad</title>
    <vendor>Sun Microsystems</vendor>
    <offline-allowed />
  </information>
  <security> 
  <all-permissions/>   
  </security> 
  
  <resources>
    <j2se version="1.5+" href="http://java.sun.com/products/autodl/j2se"
        java-vm-args="-Xss1M -Xmx256M"
        >
    </j2se>
    <jar href="javafxrt.jar" main="true"/>
    <jar href="Filters.jar"/>
    <jar href="swing-layout.jar"/>
    <jar href="javafxpad.jar"/>
  </resources>
  <application-desc main-class="net.java.javafx.FXShell">
  <argument>javafxpad.Main</argument>
  </application-desc>
</jnlp>


Hello Web Start FX example (Compiler) Edit

Requirements Edit

Compile Hello Web Start JFX Edit

Filename: hellowebstart.fx

package hellowebstart;

import javafx.gui.*;
import java.lang.System;

Frame {
    closeAction: function(): Void {System.exit(0);}
    background : Color.WHITE;
     
    title  : 'Hello Web Start JFX!'
    visible: true

    content: Label{
        text: 'Hello Web Start JFX!'
        font: Font{size: 32}
    }// Label
}// Frame
webstartcompiler/hellowebstart$ javafxc -target 1.5 hellowebstart.fx

Create hellowebstart.jar Edit

webstartcompiler/hellowebstart$ cd ..
webstartcompiler$ jar cvf hellowebstart.jar hellowebstart/*.class

Create hellowebstart.jnlp Edit

Filename: hellowebstart.jnlp

<?xml version="1.0" encoding="utf-8"?>
<jnlp spec="1.5+"
      codebase="http://www.example.com/webstartcompiler/"
      href="hellowebstart.jnlp">
   
    <information>
    <title>Hello Web Start JFX!</title>
        <vendor>John Doe</vendor>
        <homepage href="http://www.example.com/webstartcompiler/"/>
        <description>Java Web Start example for the JavaFX Script Compiler.</description>
        <offline-allowed/>
    </information>

    <resources>
        <j2se version="1.5+" href="http://java.sun.com/products/autodl/j2se">
        </j2se>

        <jar href="javafxrt.jar"      main="false"/>
        <jar href="javafxgui.jar"     main="false"/>
        <jar href="hellowebstart.jar" main="true"/>          
    </resources>
    
    <application-desc main-class="hellowebstart.hellowebstart">
    </application-desc>
</jnlp>

Set link to hellowebstart.jnlp Edit

Filename: index.html

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN"
     "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
  <head>
    <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
    <title>Hello Web Start JFX!</title>
  </head>
  
  <body>  
    <h1>Hello Web Start JFX!</h1>
  
    <p><a href="hellowebstart.jnlp">Java Web Start: Hello Web Start JFX!</a></p>
  </body>
</html>

Webserver: Set MIME type for .jnlp Edit

Apache: http.conf or .htaccess.

AddType application/x-java-jnlp-file JNLP

Copy files on webserver Edit

Copy files on the webserver with FTP or in this case with cp for server on the local machine.

webstartcompiler$ mkdir /www/www.example.com/docs/webstartcompiler/
webstartcompiler$ cp index.html hellowebstart.jnlp hellowebstart.jar javafxrt.jar javafxgui.jar /www/www.example.com/docs/webstartcompiler/

Start Edit

Web Start via www.example.com/webstartcompiler/


Hello Web Start FX example (Interpreter) Edit

License Edit

License see FAQ#What_is_the_licencing_model.3F.

Requirements Edit

  • Java 5 JDK
  • /lib/javafxrt.jar and lib/swing-layout.jar from the openjfx packet

Hello Web Start JFX Edit

Filename: HelloWebStart.fx

import javafx.ui.*;

Frame {
    title  : 'Hello Web Start JFX!'
    width  : 600
    height : 400
    
    content: Label {
        text: 'Hello Web Start JFX!'
        font: Font{size: 32}
    }
       
    visible: true
}

Create HelloWebStartJFX.jar Edit

jar cvf HelloWebStartJFX.jar HelloWebStart.fx

Create HelloWebStartJFX.jnlp Edit

Filename: HelloWebStartJFX.jnlp

<?xml version="1.0" encoding="utf-8"?>
<jnlp spec="1.5+"
      codebase="http://www.example.com/HelloWebStartJFX/"
      href="HelloWebStartJFX.jnlp">
   
    <information>
    <title>Hello Web Start JFX</title>
        <vendor>John Doe</vendor>
        <homepage href="http://www.example.com/HelloWebStartJFX/"/>
        <description>Web Start example for JavaFX Scripts</description>
        <offline-allowed/>
    </information>

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

    <resources>
        <j2se version="1.5+" href="http://java.sun.com/products/autodl/j2se">
        </j2se>

        <jar href="javafxrt.jar" main="true"/>
        <jar href="swing-layout.jar"/>
        <jar href="HelloWebStartJFX.jar"/>          
    </resources>
    
    <application-desc main-class="net.java.javafx.FXShell">
        <argument>HelloWebStart</argument>
    </application-desc>
</jnlp>

Create signature key Edit

keytool -genkey -alias jfx -dname "CN=John Doe, O=JFX Inc." -validity 9999 -keystore jfx.keystore -keypass keyPassword -storepass storePassword

Sign .jars Edit

jarsigner -keystore jfx.keystore -verbose -keypass keyPassword -storepass storePassword HelloWebStartJFX.jar jfx
jarsigner -keystore jfx.keystore -verbose -keypass keyPassword -storepass storePassword javafxrt.jar jfx
jarsigner -keystore jfx.keystore -verbose -keypass keyPassword -storepass storePassword swing-layout.jar jfx

Set link to HelloWebStartJFX.jnlp Edit

Filename: index.html

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN"
     "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
  <head>
    <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
    <title>Hello Web Start JFX!</title>
  </head>
  
  <body>  
    <h1>Hello Web Start JFX!</h1>
  
    <p><a href="HelloWebStartJFX.jnlp">Java Web Start: Hello Web Start JFX!</a></p>
  </body>
</html>

Webserver: Set MIME type for .jnlp Edit

Apache: http.conf or .htaccess.

AddType application/x-java-jnlp-file JNLP

Copy files on webserver Edit

Copy files on the webserver with FTP or in this case with cp for server on the local machine.

mkdir /www/www.example.com/docs/HelloWebStartJFX/
cp index.html HelloWebStartJFX.jnlp HelloWebStartJFX.jar javafxrt.jar swing-layout.jar /www/www.example.com/docs/HelloWebStartJFX/

Start Edit

Web Start via www.example.com/HelloWebStartJFX/

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