Zack Grafton wrote:
> hui zhang wrote:
>> Hi Everybody,
>>
>> Now I am trying to launch an external application, for example, "top"
>> ,in my web application, and killing it by PID after a while. But when
>> I execute Runtime.getRuntime.exec("top") in my JSP page or Servlet,
>> Tomcat is stuck in that page and do not display anything because it
>> can not stop running until that "commnad" is terminated, which means
>> it waiting for the response from Runtime.getRuntime.exec("top"). It
>> seems that it will run forever. Is there any solution to solve this
>> problem? I mean that JSP page can execute the following code no
>> matter if it finish the process is done.
>>
>> BTW, I do not use System.exit() in my program. It may cause Security
>> Manager problem.
>> Thanks and best regards,
>>
>> Hui
>>
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>>
> Hey,
>
> I'm new to the list and all, but you might want to try executing "top"
> in batch mode. The command line option is -b on my gentoo linux box.
> Also, be careful of executing commands from applets and such. Another
> thing might be user permissions as well. You could try executing the
> command and redirecting the output to a file and parsing the file
> instead.
>
> Zack Grafton
>
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Hi,

"TOP" is only an example in this case. Actually I am running some
program which can not stop running until terminating it by "Control +
C". In this case, Tomcat can not run the following code if the external
application does not stop. I need a solution to make my webapp running
in this case. Thank you.

Regards,

Hui




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