Difference: LaunchingAPPXDesktopClientFromWebPageViaJavaWebstart (23 vs. 24)

Revision 242009-03-12 - JoeOrtagus

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META TOPICPARENT	name="APPXAdministrator"

APPX Desktop Client Launched via Java Web Start

This document will explain how to start the APPX Desktop Client via Java Web Start Technology.

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The appx.html file.

Take a look at the appx.html file. This file is just a starter file that you can use to load the .jnlp file.:

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APPX Desktop Client Web Start Bundle Components

appx32.gif

The appx32.gif file is the file used as an application runtime icon. It is referenced by the appx.jnlp file that we review later in this document.

appx.jar

The APPX Desktop Client in Java jar format.

appx.jpg

appx-nativelib.jar

The appx-nativelib.jar file contains platform specific files for the proper execution of the appx.jar file.

appx.html

The appx.html file exists only to provide the user with a link to click the appx.jnlp file. It is not technically needed because if someone entered the path to the jnlp file the application would launch just the same as if the jnlp file had been clicked from a link in the html file. Let's take a look at the appx.html file. This file is just a starter file that you can use to load the .jnlp file. There is a bit of javascript code that attempts to detect if a JRE is installed on the user's desktop for the Java Web Start launch. If the JRE needs to be installed or updated the script will either attempt to update the JRE or present the user with the appropriate link to download the software manually.

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The appx.jnlp file.

Now take a look at the appx.jnlp file. This file is an XML file that contains the information needed by Java Web Start to load the APPX Desktop Client jar file:

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appx.jnlp

This is an XML file that defines the environment that the APPX Desktop Client will run it. The file is made up of elements, element values, element stanzas and comments. The file is documented with comments. Now take a look at the appx.jnlp file.

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APPX Desktop Client Web Start Bundle Components

appx32.gif

The appx32.gif file is the file used as an application runtime icon. It is referenced by the appx.jnlp file that we review later in this document.

appx.jar

The APPX Desktop Client in Java jar format.

appx.jpg

appx-nativelib.jar

The appx-nativelib.jar file contains platform specific files for the proper execution of the appx.jar file.

appx.html

The appx.html file exists only to provide someone with a link to click the appx.jnlp file. It is not technically needed because if someone entered the path to the jnlp file the application would launch just the same as if the jnlp file had been clicked from a link in the html file.

appx.jnlp

The Codebase is the location of the appx.jar file.
The Information section contains the data displayed to the user when the application starts, such as a splash screen image, application icon, and title bar text.
The Security element grants the APPX Desktop Client required permissions to run properly on the user's desktop.
The Resource element defines a minimum operating environment for the APPX Desktop Client. Here we've specified a JRE version of 1.6 and we can also load optional files based on the client's operating system and hardware platform.

splash.gif

This is the initial image displayed while the APPX Desktop Client is loading, it is referenced by name in the appx.jnlp file.

appx.html

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