Help on Process.destroy(),......why it doesn't work.

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3 total messages Started by David Huang Sat, 22 Nov 2003 02:27

#408

Author: David Huang
Date: Sat, 22 Nov 2003 02:27

29 lines
1506 bytes

hi all,

I have a program that does Runtime.exec(a bat/sh script file), which will
start a java process.

When I tried to destroy this process using process.destroy(), it does not
work.

Can some one help me ..?

my code looks like this:



Runtime rt = Runtime.getRunTime();

Process process = rt.exec(MyScriptFile);

try{

    Thread.sleep(5000);   //just waiting for process started by my script
file to initialize

}catch(Exception ex){}

process.destroy();

Thanks
David

Re: Help on Process.destroy(),......why it doesn't work.

#409

Author: David Huang
Date: Sat, 22 Nov 2003 08:21

43 lines
1848 bytes

Hi all,
I found the reason is like this:
I using
> Process process = rt.exec("explorer");
but at win2k explorer can not be killed by this way. If I changed to
iexplorer it will work.

Thanks
David

"David Huang" <dayicool@sina.com> д���ʼ�
news:3fbec8a7$1@newsgroups.borland.com...
> hi all,
>
> I have a program that does Runtime.exec(a bat/sh script file), which will
> start a java process.
>
> When I tried to destroy this process using process.destroy(), it does not
> work.
>
> Can some one help me ..?
>
> my code looks like this:
>
>
>
> Runtime rt = Runtime.getRunTime();
>
> Process process = rt.exec(MyScriptFile);
>
> try{
>
>     Thread.sleep(5000);   //just waiting for process started by my script
> file to initialize
>
> }catch(Exception ex){}
>
> process.destroy();
>
> Thanks
> David
>
>

Re: Help on Process.destroy(),......why it doesn't work.

#411

Author: John McGrath [TeamB]
Date: Sat, 22 Nov 2003 16:54

21 lines
1736 bytes

On 11/21/2003 at 9:27:28 PM, David Huang wrote:

> I have a program that does Runtime.exec(a bat/sh script file), which
> will start a java process.
> 
> When I tried to destroy this process using process.destroy(), it does
> not work.

It sounds like the program you are starting is a shell, and then that
shell is starting the Java process.  The Process object you get back
refers to the shell, not the Java process.  So you are destroying the
shell, if it has not already terminated, and not the Java process.

-- 
Regards,

John McGrath [TeamB]

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