Executing an external program from Java/JavaScript.

[Jose Rodz]

Is there a function that can use in Java or JavaScript to run an external
program from within the Java Class or JavaScript Function?

[Paul Clapham]

"Jose Rodz" <rodriguezj.orion@afwtf.navy.mil> wrote in message
news:3d81d16c$1@10.1.10.29...
>
> Is there a function that can use in Java or JavaScript to run an external
> program from within the Java Class or JavaScript Function?

Java: Runtime.getRuntime().exec("extprog.exe");

Javascript: Don't know, I hope not because that would be an enormous
security hole in browsers.

[Jose Rodz]

"Paul Clapham" <pclapham@core-mark.com> wrote:
>
>"Jose Rodz" <rodriguezj.orion@afwtf.navy.mil> wrote in message
>news:3d81d16c$1@10.1.10.29...
>>
>> Is there a function that can use in Java or JavaScript to run an external
>> program from within the Java Class or JavaScript Function?
>
>Java: Runtime.getRuntime().exec("extprog.exe");
>
>Javascript: Don't know, I hope not because that would be an enormous
>security hole in browsers.
>
>
Thanks.. Can this function work in a Java Servlet?

[MarkN]

Yes. A servlet is just another java class. It will need to have access to
where the exe is located - just like the app - just easier to forget.


"Jose Rodz" <rodriguezj.orion@afwtf.navy.mil> wrote:
>
>"Paul Clapham" <pclapham@core-mark.com> wrote:
>>
>>"Jose Rodz" <rodriguezj.orion@afwtf.navy.mil> wrote in message
>>news:3d81d16c$1@10.1.10.29...
>>>
>>> Is there a function that can use in Java or JavaScript to run an external
>>> program from within the Java Class or JavaScript Function?
>>
>>Java: Runtime.getRuntime().exec("extprog.exe");
>>
>>Javascript: Don't know, I hope not because that would be an enormous
>>security hole in browsers.
>>
>>
>Thanks.. Can this function work in a Java Servlet?
>

[Jose Rodz]

The executable should be in same directory as the servlet? I have placed there
and it gave me an IllegalStateException. I wasn't sure if was the function
causing the problem or the external executable. Thanks for the info.

"MarkN" <java.@127.0.0.1> wrote:
>
>Yes. A servlet is just another java class. It will need to have access
to
>where the exe is located - just like the app - just easier to forget.
>
>
>"Jose Rodz" <rodriguezj.orion@afwtf.navy.mil> wrote:
>>
>>"Paul Clapham" <pclapham@core-mark.com> wrote:
>>>
>>>"Jose Rodz" <rodriguezj.orion@afwtf.navy.mil> wrote in message
>>>news:3d81d16c$1@10.1.10.29...
>>>>
>>>> Is there a function that can use in Java or JavaScript to run an external
>>>> program from within the Java Class or JavaScript Function?
>>>
>>>Java: Runtime.getRuntime().exec("extprog.exe");
>>>
>>>Javascript: Don't know, I hope not because that would be an enormous
>>>security hole in browsers.
>>>
>>>
>>Thanks.. Can this function work in a Java Servlet?
>>
>

[Jun Wu]

"Jose Rodz" <rodriguezj.orion@afwtf.navy.mil> wrote:
>
>The executable should be in same directory as the servlet? I have placed
there
>and it gave me an IllegalStateException. I wasn't sure if was the function
>causing the problem or the external executable. Thanks for the info.
>
>"MarkN" <java.@127.0.0.1> wrote:
>>
>>Yes. A servlet is just another java class. It will need to have access
>to
>>where the exe is located - just like the app - just easier to forget.
>>
>>
>>"Jose Rodz" <rodriguezj.orion@afwtf.navy.mil> wrote:
>>>
>>>"Paul Clapham" <pclapham@core-mark.com> wrote:
>>>>
>>>>"Jose Rodz" <rodriguezj.orion@afwtf.navy.mil> wrote in message
>>>>news:3d81d16c$1@10.1.10.29...
>>>>>
>>>>> Is there a function that can use in Java or JavaScript to run an external
>>>>> program from within the Java Class or JavaScript Function?
>>>>
>>>>Java: Runtime.getRuntime().exec("extprog.exe");
>>>>
>>>>Javascript: Don't know, I hope not because that would be an enormous
>>>>security hole in browsers.
>>>>
>>>>
>>>Thanks.. Can this function work in a Java Servlet?
>>>
>>
>


There is a way to run a DOS command from HTML, from which you can start an
external program. The method has been published by Simon Tong in following
web page:

http://www.devx.com/free/tips/tipvie...ontent_id=3675

I copied the content here too:


Run a DOS Command From an HTML Page

This is achieved by using the Windows Script Host. First, create an instance
of the object WScript.Shell. Then, use its Run method to execute the DOS
command. For example, say your HTML page has a button that will run the DIR
command when clicked. The onclick jscript function would look something like
this:

-------------------------
function btnDIR_onclick()
{
var WshShell = new ActiveXObjec("WScript.Shell");
WshShell.Run("%comspec% /c DIR");
WshShell.Quit;
}
----------------------------


The %comspec% string in the argument for Run() specifies the path and file
name of the command interpreter, Cmd.exe.

Simon Tong
Melbourne, Australia