How to Run Jar in Background process

Question

Hi,
I am develop one application in java,
I have some problem in my application,
whats my problem is, I want to run my jar file
in system background, that is when i was start the system
my jar gets ready to run the application,
Can any one please give some idea to how to run my jar in
background task and how to start the jar when the system
start.
Thanks in advance,
Regards,
Ganesh Kumar.L

Answer 1

Hi
It has been a while since you asked your question- I hope you still need the solution. Java typically does not support this because it is platform specific. I don't know what operating system you are working on. I assume Windows. There are numerous ways to do this in Windows. The easiest is to copy the program into the startup folder. The directory is: C:\Documents and Settings\All Users\Start Menu\Programs\Startup. Another way, less visible to the user, is to make an entry in the registry. If you place the location of the program as data in a key in HKLM\Software\Microsoft\Windows\Current\Version\Run of the registry, it will start with the system. This is hard to do in Java (for obvious reasons) however it is not impossible. You can use JNI which is really difficult to learn and hard to implement or you can use
Process p=Runtime.getRunTime().exec({"reg.exe","add HKLM..."});This will execute the Windows utility reg.exe with the arguments provided by the second in the array of Strings. Documentation on reg.exe can be found through the command prompt. There are other ways such as modifying Autoexec.bat however they are less reliable
Hope I helped