Web Start and Web Application

I have a scenario as given below.
I have a Central Server hosting a web application(JSPs, jars) in Jetty 6.0.0. I have many branch servers having Jetty 6.0.0 installed and the web application deployed.
Now, I want to update the web application on all my branch servers whenever a modification is done on the Central server.
Can Web Start help me in such a scenario?
So far I understood that Web Start can be used to deployed / update only Client Applications.

Did you ever find a solution?

Similar Messages

Web Start and Web Services

Hi,
I have a web services client which I have set up to run through web start. My only problem is that now that I am running through web start, the client cannot connect to the service.
The code runs to the point when it attempts to make the actual connection. Can anyone provide any words of wisdom as to why this might be happening? I'd really like to get this going, so if anyone has any ideas, I would be very grateful.
Thanks in advance.
Steve

Hi,
Sorry, I think the problem may have something to do with security. I've noticed that when I run the jar, I am not shown a dialog which states that the application is requesting full access to the computer. I am signing the jar, so I'm not sure what's going on.
This is my JNLP:
<?xml version="1.0" encoding="UTF-8"?>
<jnlp spec="1.0+" codebase="http://www.informavores.com/hosted/enterprise/start" href="Firefly.jnlp">
<information>
<title>Firefly Designer</title>
<vendor>Informavores</vendor>
<homepage href="index.jsp" />
<description>Powerful decision support systems for real people.</description>
</information>
<resources>
<j2se version="1.3+" />
<jar href="Firefly.jar" />
</resources>
<application-desc main-class="com.informavores.firefly.designer.DesignerMain" />
<security>
�� <j2ee-application-client-permissions/>
</security>
</jnlp>
If you have any ideas, that would be great.
I was a bit vague as I thought someone might say - you can't have a web services client through web start - I've discovered now that you definitely can.
Cheers,
Steve

Mac OS 10.4.8 , Java Web Start and JRE version of 1.4.2 and 1.5.0 problem

Hello,
I've been searching internet and reading the problems related to Java Web Start and JNLP.
But no solution I read can solve what I faced.
I'm running Mac OS x 10.4.8 and Macintosh updates the Java in my machine so that it has Java version 1.4.2 and Java 1.5.0
The application I'm running needs to be running in JRE 1.4.2.
So I changed the Java Preferences so that the default Java setting is JRE 1.4.2. However, the JNLP application still running in Java 1.5.0
So I changed the MIME and make sure the JNLP is opened with Java Web start instead. The Java Web start is for version 1.4.2. I also change its preference so that the console is opened.
I tried to run the JNLP application once again. Java web start 1.4.2_09 starts and console open, but the Java Runtime is still showing Java 1.5.0
I adjust the JNLP file so that the version is only showing 1.4.2_09 (ignoring all other variables of version 1.4.1, 1.4.2, etc found in the original JNLP file). That didn't work either.
I search on methods on how to uninstall Java 1.5.0 in Mac - apple page told me that I can't do that unless I reinstall the whole OS.
I am henceforth declare that I am stuck now !!!! Heellllpp....

Are you up to date with the updates?
Update for Snow Leopard users:
Apple issued update 12 for Java for OS 10.6:
http://support.apple.com/kb/DL1573
Note: On systems that have not already installed Java for Mac OS X 10.6 update 9 or later, this update will configure web browsers to not automatically run Java applets. Java applets may be re-enabled by clicking the region labeled "Inactive plug-in" on a web page. If no applets have been run for an extended period of time, the Java web plug-in will deactivate.
If, after installing Java for OS X 2013-002 and the latest version of Java 7 from Oracle, you want to disable Java 7 and re-enable the Apple-provided Java SE 6 web plug-in and Web Start functionality, follow these steps:
http://support.apple.com/kb/HT5559?viewlocale=en_US
Further update:
Apple issued this Java related security update No. 13 on February 19:
http://support.apple.com/kb/HT5666
and Update No. 14 on March 4: http://support.apple.com/kb/DL1573
http://support.apple.com/kb/HT5677
The standard recommendation is for users to turn off Java except when they have to use it on known and trusted websites (like their bank). Javascript, which is unrelated despite the name, can be left on.

Java Web Start and DeployDirector: What's the difference?

I am the product manager for DeployDirector at Sitraka (now part of Quest Software). I'm NOT in sales; I'd simply like to provide you with some information.
From talking with DeployDirector users and evaluators, and from my own discussions with the folks at Sun, I have discovered that there is great deal of confusion about the difference between Java Web Start and DeployDirector. I'd like to clarify this by periodically posting some information about the two.
Though the products seem similar in concept, they are designed for different purposes. They both deploy, auto-update and manage the JRE for client-side Java applications, but beyond that, they are quite different.
Java Web Start is ideally designed for applications deployed over the Internet, where application-provider trust is an issue. Why? The security sandbox guarantees that application can do no harm. (There's some good information about Java Web Start and sandbox apps on ScheduleWorld at http://www.scheduleworld.com/itsYourLife.html) Web Start's architecture simply consists of a client piece that interprets a JNLP file. Because of the sandbox and its simplicity, I believe JWS is best used for independent software vendors, independent developers, etc.
Because DeployDirector is ideally designed for internal enterprise applications, it does not enforce the security sandbox. Trust is not an issue here, because internal users typically trust their internal IT group. DeployDirector's architecture consists of both a client and a server piece, which allows us to support more complex deployment and update scenarios (e.g., scheduled and optional updates) and applications management capabilities like rollback, reporting, exception monitoring, authentication/authorization out of the box. All of this is configured through the DeployDirector administration console.
In some situations, DeployDirector may be unnecessary overhead. In other situations, Java Web Start simply does not provide enough capability and building in this into Web Start can be difficult.
If you'd like more information, we have whitepapers and case studies (including one specifically about DeployDirector and JWS) available on our website at http://www.sitraka.com/software/deploydirector/
If you'd like to discuss some of these differences, or if you have questions about DeployDirector, feel free to email me directly. (Or post here, of course.)
Thanks,
Sonal Champsee
[email protected]

Hi Gerald,
Given what I know about your emnity towards DeployDirector (which is clearly illustrated in this thread: http://forum.java.sun.com/thread.jsp?thread=348061&forum=38&message=1446155 that was evidently a response to this article: http://www.javaworld.com/javaworld/jw-11-2002/jw-1122-autoupdate.html) I'm going to take a (pardon the expression) "don't feed the trolls" approach here.
I'm simply re-iterate that JNLP, and its implementations such as Web Start and OpenJNLP, are designed for a very different set of users that DeployDirector. The differences in functionality between the two products reflect that.
The enterprise has different requirements in a deployment mechanism for its internal, critical applications than software vendors and independant developers. DeployDirector addresses the requirements of the enterprise. Frankly, most of our recent customers only chose to buy the product after initially rejecting it and (unsucessfully) attempting to use JNLP and Web Start. Sometimes people only learn the hard way: different users have different requirements which are suited to different tools or technologies.
Sonal

What is the recommended way to launch a web-start enabled Java application?

Hello,
I have a simple web-start enabled Java application, which I can launch from a brower by entering :
https://xx.xx.x.xxx/MyApp/launch.html
This method would show me a page. I then had to click on a link to run my application.
I noticed that I could also launch my program by entering :
https://xx.xx.x.xxx/MyApp/launch.jnlp
This method would run my application right away.
I wonder if there is a recommended way to launch/run a web-start enabled Java application?
Thank you,
Akino

user8708553 wrote:
..to directly launch my application and bypass the HTML page, why is there a need to
display the HTML page and make the user do a click?There are a number of advantages to using the web page. Including..
<li> An explanation to the end-user of what the application does (a 'sales pitch').
<li> Provision of screen shots of the app. (more 'sales pitch').
<li> A description of what security environment it requires, and why.
<li> Access to using the deployJava.js* to ensure the end-user actually has Java installed & has a suitable minimum version of Java, before they ever get access to the launch button/link.
* http://download.oracle.com/javase/6/docs/technotes/guides/jweb/deployment_advice.html#deployingApplications

Java Web Start and C++ executable

Can anyone please help me to deploy an application including three C++ executables using Java Web Start?
I packaged each .exe file into .jar and created a java program called "ExecTest" that attempt to launch the .exe by calling Runtime.exec (someapp.exe).
My JNLP file looks like:
<resources>
<jar href="app/someapp.jar"/>
<jar href="ExecTest.jar" />
</resources>
<application-desc main-class="ExecTest">
The problem I am having is that Runtime.exec wants the full absolute pathname for the executables. But the cached jar files all have some arbitrary letters prefixed, so I cannot specify them beforehand.
Any ideas?
Thanks in advance.
Suh from Toronto. (Go! Leafs Go!)

I've deployed serialio.com's replacement for javax.comm via Java Web Start, and I managed to package the .dll in a .jar without any difficulties.
Perhaps the System.loadLibrary() function knows about the renaming that Java Web Start does...
If so, then the following might do the trick:
- Use System.loadLibrary() to load your .exe file. Windows uses the same fileformat for DLLs and EXE files, and hence System.loadLibrary() should be a safe no-op. Presumably you are
- Use System.mapLibraryName() to find the full path to your .exe.
�yvind

Java Web Start and JNLP Problem

Hi !
I�m a student and i need your help for a work that i have to do.
I have an aplication that parse an XML file.
The XML file is in ther server, and when i run the aplication with Java Web
Start and jnlp file i want that the application parse a XML file.
is this possible??? how can i do ???
if you dont understand please warn me, that i try to explain better..
thanks, in advance.
Rui Silva , Portugal

I'm not sure that you need webstart.
Just an applet will allow you to read a file from the server:
Just open a URL pointing to the .xml file.
Read the file into a buffer and then parse it.
Now actually getting the applet to do something with the contents of the .xml file
is more complicated. Presumably you need to write something which understands the
contents of the .xml and does something in response to the contents.
A signed java program can be run from with in webstart which can spawn processes on
the local machine. os.systemExec("command a b c"); But of course that has cross platform
problems.
Good luck

Java Web Start and pack200

Hi!
What do I have to do to deploy my jar-archives that are packed with pack200? Do I have to change the jnlp files? Do I have to change any server settings?
At the moment I successfully deploy our software using Java Web Start and simple jar files. If I pack with pack200 the archives shrink to 1/4 of the original size. That is nice, but when I put the xxx.jar.pack.gz files on our web server they are ignored by Java Web Start. Explicitly use the xxx.jar.pack.gz files in the jar arguments of the jnlp file doesn't work either (because JWS expects .jar archives there it tells me that the archives are corrupted).
I figure that I have to change either the jnlp file, the server settings or the JWS clients settings.
In another posting I have read that JWS in its normal configuration does not support pack200 at all. Is that correct? Or is there a straight-forward documentation how to use JWS with pack200?
Thanks in advance,
Chris,
Hamburg

Either the JWS plugin should try to request the "xxx.jar.pack.gz" file when it finds a "xxx.jar" reference in the jnlp file.No. You always request jar files, but the Accepted-Ecnoding can differ. If omitted or empty the server should send back the contents of the jar, if it's "gzip" than the stuff of the jar.gz (Content-Encoding: gzip) and if it "pack200-gzip" the stuff of the jar.pack.gz (Content-Encoding: pack200-gzip).
The diagrams shown here make it pretty obvious:
http://java.sun.com/j2se/1.5.0/docs/guide/deployment/deployment-guide/pack200.html
So... you need some server sided logic for handling that. If you can run servlets - great... just use Sun's example. If you can't, you'll need something else like apache's mod_rewrite and a php script.
mod_rewrite is used for redirecting requests server sided. For example:
http://onyx.bubblegumcrises.jp/jnlp/downloads/fake.jar [no real url]
becomes:
http://onyx.bubblegumcrises.jp/jnlp/jarbounce.php?file=fake.jar (internally) [no real url]
by rewriting like this(jnlp/.htaccess):
RewriteEngine On
RewriteBase /jnlp
RewriteRule downloads/(.*) jarbounce.php?file=$1 [NE]
The php file then checks the filename (for security reasons) and the accepted encoding and sends the contents of a file (picked by AE and availability) back together with the correct headers (Content-Encoding reflecting the picked encoding and Content-Type set to "application/x-java-archive").
I've written such a script yesterday and I'm going to make it public. However, I want to do some more checks before releasing it (I ended up here by googling around... I wanted to avoid reinventing the wheel again ;)).
I'll post it over at JGO pretty soon now... in this thread:
http://www.javagaming.org/cgi-bin/JGNetForums/YaBB.cgi?board=OnLin;action=display;num=1097590751;start=0
[I'm also planning to write an article about that, but that will take a bit longer]

Java web start and JRE's

I'm developing an application that is going to be run using java web start. My application needs the IBM JRE because it uses the services offered by a websphere appserver 6 (mainly ejb's). I want to register the IBM jre in javaws as a system jre. For doing this go to the javaws console ->edit -> preferences-> java -> runtinme configuration -> view. There I can see the jre's
available to the user and to the system. I would like to register IBM's jre in the system tab but the find and add buttons are disabled there. I want to register it as system jre because multiple users are going to launch the application in the same computer.
Thanks in advance

The system jres are the set consisting of the JRE that includes the instance of javaws you are running, pluss any differant jres listed in the system deployment.properties file (pointed to by the deployment.config file)
see the docs for enterprise configuration at:
http://java.sun.com/j2se/1.5.0/docs/guide/deployment/deployment-guide/properties.html
and in the FAQ at:
http://java.sun.com/j2se/1.5.0/docs/guide/javaws/developersguide/enterprise_config.03.06.html
/Andy

Web start off-line applications

Is it possible to disable the automatic update feature of web start, and indicate that an application will always run off-line? For users that only have a dial up connection, it's inconvenient for web start to try to connect each time.

I think I answered my own question; the answer is that presently the answer is no. Web start will always try to get the latest version, like it or not. I also understand that this might change in Java 1.6.
There is an ongoing debate as to whether creating java executables (exe files) in windows is needed or advisable. Many suggest using java web start; others suggest distributing an executable jar. Both have problems.
In the case of an executable jar, unless one makes a shortcut and uses an application icon, it is apparent that the program is not a normal windows application. Also, if the application uses javahelp, there is the additional difficulty of getting jhall.jar to the right place.
Java Web Start has good potential. However, this business of always looking for automatic updates has problems. Many users don't want updates unless they explicitly ask for them. It is possible to run the application offline using the Java Web Start manager. But then its very obvious that this is not a standard windows application. Clicking on the icon that web start creates causes Java web start to announce itself to dial up users who happen not to be connected to the internet at the time of the launch. Again, it becomes obvious that this is not a windows application.
It's my personal opinion that this is a serious design flaw. Java can make inroads to .net if its applications can run in windows transparently, as any other application. My vote is to correct this flaw in the next version.

Using project libraries for both web-based and AIR applications

I need to develop substantial code to build both web-based and AIR applications. Yes, they will have different features, especially when it comes to accessing files on the local file system.
However, 98% of the code can be shared.
I want to use a project library that can be used for both types of applications. Maybe using conditional compile when required to not use AIR API's in a web-based application.
I found this (somewhat old) warning:
Include Adobe AIR libraries Select this option if your library must use AIR features, such as access to the AIR APIs. Flex Builder then changes the library path of this new Flex Library project so that it includes airglobal.swc and airframework.swc. Web-based Flex projects cannot use this library.
Do not select this option if you are writing a generic library intended to be used only in a web-based Flex application, or in either a web-based or AIR-based application.
Does this apply to Flash Builder 4.5?

I have found a workaround, but it's quite clumsy, involving a transfer vector (in old-fashioned terms) in the main application for each function in the AIR library.
I have created a library for AIR classes only (fourdtext.fileOperations is there).
The AIR application provides "Function" values that any other code in the general-purpose libraries can use.
It works, but it's nasty.
In Main.mxml:
import com.fourdtext.fileOperations.AxFiles;
// this gets a list of native path strings, from and array of "File" objects
public var AxGetListFunction:Function = AxGetListRedirect;
private function AxGetListRedirect(list:Array):Vector.<String>{
return AxFiles.AxGetList(list);
In general-purpose code:
var list:Array = event.dragSource.dataForFormat("air:file list") as Array;
var AxGetList:Function = FlexGlobals.topLevelApplication.AxGetListFunction;
listFiles = AxGetList(list);

Java Web Start and Java Preferences

I am having trouble with Java Web Start and Java Preferences. I have tried reinstalling the update with the link http://www.apple.com/downloads/macosx/apple/application_updates/javaformacosx105 update6.html but to no avail. What else can be done ? Moreover the file /System/Library/Frameworks/JavaVM.framework/Versions/A/ seems to be in place, but Java Web Start wont open and Java Preferences can't access cache files. Any ideas about how to resolve this? I have been having issues with Java for a long time and have already done a clean Leopard reinstall and all the Combo updates. Java Web Start and Java Preferences worked correctly for a while after that but seem to have gone haywire again.

bump

Run Oracle Web Logic and Oracle Application Server 10g on same server

Since oracle has chosen to release adf faces 11g, before the SOA suite 11g is released, we are facing the challenge to run both Oracle Web logic and Oracle Application Server 10g on the same server.
If anyone have any experience in this setup or has knowledge of other feasable setups please let me know.
Regards.
Jan

What version of Oracle Application Server 10g are you installing?
If you are installing 10gR2 (v10.1.2.x) have you taken a look at point #70 in "Table 2 Additional Information for Certified Platforms" section here?
http://www.oracle.com/technology/software/products/ias/files/as_certification_r2_101202.html
Thanks
Shail

Reports Web Cartridge and Web CGI

How Reports Web Cartridge and Web CGI
converts url into pdf and html output.

<BLOCKQUOTE><font size="1" face="Verdana, Arial">quote:</font><HR>Originally posted by [email protected]:
It is my understanding that neither of the above is used by Oracle Forms with the run_product statement for WEB applications. Can anyone tell me if either of the above is used by Oracle Forms with the statement run_report_object?
I'm asking because I want to know that if I use the run_report_object built-in (WEB environment)which replaces run_product
(Client/Server environment), will it be able to display the parameter form as run_product currently does in the Client/Server environment. I am talking about Oracle forms calling Oracle reports.
<HR></BLOCKQUOTE>
Did you ever get an answer to your problem. I having trouble with bringing forms over from client server to web, I can't get a parameter form to run. I've been told to use paramform=html in the URL but where is it? Where do I place this statement?
null

Diference Between Web Intelligence and Web Intelligence Rich Client?

Hey Guys,
Do you know the difference between Web Intelligence and Web Intelligence Rich Client?
I was asked about that but i couldnt help. And i need to make a decision about a Web Intelligence training. I need to decide using one or another.
Thanks
Vegas

Hi Vegas,
The Webintelligence Rich Client (WRC) has all the features of the thin webintelligence client. But WRC makes use of the client processor and memory to do all post query processing while Infoview Webi sends every request to the server for processing.
Thus you won't find any difference between the time taken to retrieve data from the database between these two clients. But there would be huge difference in performance while doing further analysis, formatting with the data. Also you will not need connectivity to the network to do analysis and formatting using the WRC client.
WRC client will help you to just retrieve the data on the fly and let you play around with it while you are traveling with no network connectivity.
Thanks
Mohanraj CP
http://blog,mohanraj.org

Web Start and Web Application

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