Building an jnlp file for websphinx.jar
Chaps,
I am trying very badly to create a jnlp file for websphinx.jar which is a free web bot.
The error i am getting is :-
MissingFieldException[ The following required field is missing from the launch file: <jnlp>(<application-desc>|<applet-desc>|<installer-desc>|<component-desc>)]
at com.sun.javaws.jnl.XMLFormat.parse(Unknown Source)
at com.sun.javaws.jnl.LaunchDescFactory.buildDescriptor(Unknown Source)
at com.sun.javaws.jnl.LaunchDescFactory.buildDescriptor(Unknown Source)
at com.sun.javaws.jnl.LaunchDescFactory.buildDescriptor(Unknown Source)
at com.sun.javaws.Main.launchApp(Unknown Source)
at com.sun.javaws.Main.continueInSecureThread(Unknown Source)
at com.sun.javaws.Main$1.run(Unknown Source)
at java.lang.Thread.run(Unknown Source)
So far my attempt looks like this
<?xml version="1.0" encoding="utf-8"?>
<!-- JNLP File for My Program v1.0 -->
<jnlp
spec="1.0+"
codebase="http://192.168.116.128/admin/bot"
href="webbot2.jnlp">
<information>
<title>Web Bot v1.0</title>
<vendor>websphinx.</vendor>
<homepage href="default.html"/>
<description>Web Bot Crawler</description>
<icon href="myicon.jpg">
<offline-allowed/>
</information>
<security>
<all-permissions/>
</security>
<resources>
<j2se version="1.2+"/>
<jar href="websphinx.jar">
</resources>
<application-desc main-class="Crawler">
</application-desc>
</jnlp>
What i am unsure of is what the correct class is and what i have missed!
Any assistance would be greatly apprieciated!
Thanks
javaless
[1822 byte] By [
javalessa] at [2007-11-27 10:44:37]
# 1
That JNLP file has some unclosed elements.
The web start parser works very poorly with
malformed XML, and often reports errors in
much later sections of the file.
Here is a corrected version of the file, with
the closed elements highlit in the lines that
contain ('quoted') blue text.
<?xml version="1.0" encoding="utf-8"?>
<!-- JNLP File for My Program v1.0 -->
<jnlp
spec="1.0+"
codebase="http://192.168.116.128/admin/bot"
href="webbot2.jnlp">
<information>
<title>Web Bot v1.0</title>
<vendor>websphinx.</vendor>
<homepage href="default.html"/>
<description>Web Bot Crawler</description>
<icon href='myicon.jpg' />
<offline-allowed/>
</information>
<security>
<all-permissions/>
</security>
<resources>
<j2se version="1.2+"/>
<jar href='websphinx.jar' />
</resources>
<application-desc main-class="Crawler">
</application-desc>
</jnlp>
HTH
Message was edited by:
AndrewThompson64
# 2
Thanks Andrew,
That definately got me further.
As this is my first ever attempt at creating a jnlp file is a difficult to read what the problem is.
The next confusion is the error i am receiving. Not to you i'm sure :)
Essentially i am getting in exeption -
com.sun.deploy.net.FailedDownloadException: Unable to load resource: http://192.168.116.128/admin/bot/webbot2.jnlp
And in Wrapped exeption -
java.io.FileNotFoundException: http://192.168.116.128/admin/bot/webbot2.jnlp
The file location of webbot2.jnlp is a stated as above.
How ever when i simply paste the URL in explorer i get the standard " The page can not be displayed".
I am unsure if this could be a permissions issue or not! How ever i have played with IIS and nothing i do seems to help.
If you have any thoughts that would be superb.
Thanks again
javaless
# 3
> Thanks Andrew,
You're welcome.
> That definately got me further.
So I get the dukes for that question? ;-)
> As this is my first ever attempt at creating a jnlp
> file is a difficult to read what the problem is.
We were all starters once. I still feel like
a newb when it comes to parts of the web
start API!
> The next confusion is the error i am receiving. Not
> to you i'm sure :)
This is really a different question to the first
one. Perhaps a more specific title of ..
"FailedDownloadException: Unable to load resource- IIS"
..would be good.
(In fact - I just changed it to that - hope nobody minds)
> Essentially i am getting in exeption -
>
> com.sun.deploy.net.FailedDownloadException: Unable to
> load resource:
> http://192.168.116.128/admin/bot/webbot2.jnlp
Interesting you should mention that.
I tried fetching both the root directory, then the
jar file as a direct URL in the browser, and got
the same/similar result - 404.
I guessed at the time that this was an
internal server, not publicly accessible,
and did not think more on it.
OTOH - if it is supposed to be publicly
accessible, the JNLP file, as well as all
resources need to be 'fetchable' in an
average old browser, each by the URL
made up of the codebase and href.
The jar, for example, should be fetchable
by clicking 'here'..
http://192.168.116.128/admin/bot/websphinx.jar
(or it would, if this forum reformats that as a link)
> How ever when i simply paste the URL in explorer i
> get the standard " The page can not be displayed".
Exactly like that. It does sound like an ...
> I am unsure if this could be a permissions issue or
> not! How ever i have played with IIS ..
IIS problem (shrugs) I don't have much
experience with IIS.
> If you have any thoughts that would be superb.
Use apache/tomcat? It might not be an option
for you, but note that it is stable, fast, free, ..and a
lot more people around 'these parts'* know how
it works. * Though there are Sun forums far better
suited to questions about servers.
BTW - if you want to go on testing the JNLP
application, separate to the server, look into
the javaws command line tool option for
setting the codebase to a local directory.
For example, the application can be run
locally, if you can navigate to the directory
containing the JNLP file and jar, and use
the command..
javaws -codebase file:. file:./webbot2.jnlp
Give that a try - see how you go.
I note your application needs full privileges.
Is it digitally signed?
Message was edited by:
AndrewThompson64
