Updater desktop application via servlet

Hello
I am having a desktop application an i want to write an updater to download new versions of application.
Is it possible to do that with help of o servlet? Because i want the user to send same informantions to certificate to the server and then if it is ok to download the new version of the application or the jars that have change automaticaly.
Any other suggestion about this?

Yep, that should work ok, but you will have 2 types of updates to do:
1-update of your application, not a problem from your updater
2-updating your updater
You are going to run into a problem having your updater running and trying to update it, you cannot replace/delete a file that is already open, so here you'll have to go with a shutdown/startup replacement method.

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Version
6.3.9600 Build 9600
Other OS Description
Not Available
OS Manufacturer
Microsoft Corporation
System Name
ZAYIK
System Manufacturer
Dell Inc.
System Model
Inspiron 5520
System Type
x64-based PC
System SKU
Inspiron 5520
Processor
Intel(R) Core(TM) i7-3632QM CPU @ 2.20GHz, 2201 Mhz, 4 Core(s), 8 Logical Processor(s)
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UEFI
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Binding Not Possible
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United States
Hardware Abstraction Layer
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Total Physical Memory
7.87 GB
Available Physical Memory
5.69 GB
Total Virtual Memory
9.12 GB
Available Virtual Memory
6.76 GB
Page File Space
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Hi pillguy,
Please let us know the network environment are you in? Which operating system are you using? Do you utilize a proxy server or a software firewall?.
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quote:
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Ah! I see.
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I got a new computer and need to down load the desktop application to be able to plug my Iphone into for updates. where can I go to get this application?

Click Itunes at the top of this page and download itunes.

Please help! I cannot update All Iphone Application via Itunes

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Thank you so much "Jim VanLeeuwen" I can solve it because of you give me a suggestion.
Thank you so much.I appreciated your kindness.
I use Intego Net Barrier.
First time, I read your suggest I wonder how you can know I use Intego Net Barrier.Because I didn't mention it.
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Hi! I've programmed for years JSP, Servlets and Applets, but never a desktop application, so... my problem is that I don't have any idea on how to run it. I mean, of course I know how to run some application in my own desktop (java applicationname) but my doubt is, what I need to install in the client desktop or how must I do my package in order to run without the need for installing the SDK. Because, as I known, the "java.exe" comes with SDK, and of course, I don't think that I need to install de entire SDK in all my clients desktops in order to run my application.
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You should give them the Java Runtime Environment. You will find a java.exe there too. E.g.
C:\Program Files\Java\jre1.5.0_02
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HT5621 I bought my iMac from someone. Everything was changed over to my name however when I try to update programs it only shows the old users apple ID and I can't update. How do I change this so I can update the applications and have everything fully und

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The first thing to do with a second-hand computer is to erase the internal drive and install a clean copy of OS X. You — not the previous owner — must do that. How you do it depends on the model, and on whether you already own another Mac. If you're not sure of the model, enter the serial number on this page. Then find the model on this page to see what OS version was originally installed.
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If you already own another Mac that was upgraded in the App Store to the version of OS X that you want to install, and if the new Mac is compatible with it, then you can install it. Use Recovery Disk Assistant to create a bootable USB device and boot the new Mac from it by holding down the C key at the startup chime. Alternatively, if you have a Time Machine backup of OS X 10.7.3 or later on an external hard drive (not a Time Capsule or other network device), you can boot from that by holding down the option key and selecting it from the row of icons that appears. Note that if your other Mac was never upgraded in the App Store, you can't use this method.
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Questions on deploying Java desktop applications

Hello,
I have searched the forums and been unable to find the information I need. I am not sure this is the appropriate forum to post at but had to start somewhere!
I have a Java desktop application which has only been used internally at my organization for R&D. We are now working with our legal folks on setting up various licensing options. The funding organization today said that they wanted the software set up such that deploying it externally would have behaviors such as:
* preventing one CD being used to install on multiple machines,
* preventing someone from copying the installed software from one machine to another,
* have a way for the software to "expire" after a set amount of time.
I have never had to deploy software externally before (nor does it seem has anyone else at my organization - we do science R&D) and am at a loss as to how to best do this. I have googled around a bit but not found any solutions. Has anyone here done this and could perhaps give me some pointers?
Much Thanks,
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kgoorley wrote: Hello,
I have searched the forums and been unable to find the information I need. I am not sure this is the appropriate forum to post at but had to start somewhere!
Given you new not only to deployment, but also
posting to these forums, I will take the opportunity
to point out that I let this post be for a couple of
days since in had no Dukes assigned. To my
eye, dukes indicate how important a question is
to whoever asked it, and I do not generally have
time to answer questions that are not important.
You can add dukes to a thread at any time.
kgoorley wrote: ..licensing options. ..
* preventing one CD being used to install on multiple machines,
* preventing someone from copying the installed software from one machine to another,
* have a way for the software to "expire" after a set amount of time.
Web start apps. are usually deployed directly off
a server/internet site. Although deployment off CD
is theoretically possible, it is uncommon.
The basic answer to all your questions as asked is 'no'.
However, if the legal people can take a slightly different
line, and that server/site has some 'active' element to it
(e.g. it is generated using servlets), there might be other
options worth considering.
The basic approach would be not to sell licenses
per machine, but per 'use', in the sense that if
I were to sell you a license, it would be for 'nn users',
rather than 'nn machines'. This means that if you
had a license for 'two' users (let's call them Bob
and Harriet), both Bob and Harriet could use any
PC in the organization to use the software,
but once they were both logged in, no further
users of the software would be allowed.
The way to achieve this is to have the application
'phone home' to the server and tell it the
username(/password). Every 2-3 minutes,
the app. should get back to the server and
confirm it is 'still running..'. If the app. cannot
reach the server, it reports a problem to the
user, and exits.
If the server does not get a 'still running' confirmation
in a time longer than that few minutes, it assumes
the app. is off-screen, and frees that 'licence slot'.
The reason to keep letting the server know it is
there, is that if Harriet were to be logged in, and
Bob accidentally trips over the power cord and
drops Harriet's computer in a screaming heap,
her app. will never have the chance to 'log out'
and inform the server to free the slot.
As such, it is important to allow her to log-in again in
'a few minutes' (which is probably about the amount
of time it will take her machine to reboot, and chide
Bob for his oafish carelessness).
Using this system, the first & second requirements
above become redundant - as it is not the number of
PC's that we care about - just the number of users.
The third requirement could easily be handled on
the server-side, checking licenses as users
log-in, and confirming that license is still valid.
Edited by: AndrewThompson64 on Sep 27, 2007 7:30 AM

Updater desktop application via servlet

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