Yes, but since Servlets don't run in the browser, the SecirityManager is not
a concern. Servlets are normally run in a more trusting environment, and
you should be able to run external processes, but remember that you've just
taken servlets back to the problems associated with CGI, a new process for
each request. Maybe writing a Servlet for each task and chaining to it
would be a more appropriate use of the technology.
(*Chris*)
----- Original Message -----
From: Mukul Gandhi <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Saturday, July 17, 1999 12:49 AM
Subject: Re: Multiple processes
> With JDK1.1, security manager should be the constraining factor to invoke
> external programs through servlets. But with JDK1.2 it should be possible.
> Security is more configurable in JDK 1.2 . As we all know browser's
sandbox
> is composed of Class loader + Security manager + byte code verifier. Is
> servlet sandbox security model also similar. I think only Class loader
part
> is implemented differently, and rest is same.
> Somebody can add more to this topic.
>
> -mukul
>
> At 12:58 PM 7/16/99 +0500, Mukul Gandhi wrote:
> >Is it really possible to invoke external programs through servlets ? I
> >think SecurityManager won't allow this..
> >
> >-mukul
> >
> >At 01:45 PM 7/16/99 +0800, TaNiA wrote:
> >>Hi,
> >>
> >>Could someone help me please?
> >>
> >>I have a Servlet which builds a form with has 4 checkboxes. A user may
> >>select 1-4 checkboxes. For each of the selected checkboxes, the servlet
> >>should run a perl script. How should I write my servlet such that I will
be
> >>able to run 4 perl scripts simulataneously if a user selects all 4
> >>checkboxes?
> >>
> >>Many thanks in advance...
> >>cheers...
> >>Tania
> >>
> >>********Pseudocode**************
> >>
> >>public class ExampleServlet extends HttpServlet
> >>{
> >> public void doPost(HttpServletResponse response, HttpServletRequest
> >>request)
> >> {
> >> // CBone, CBtwo, CBthree and CBfour are the four CheckBoxes...
> >> String CBone = request.getParameter("CBone");
> >> String CBtwo = request.getParameter("CBtwo");
> >> String CBthree = request.getParameter("CBthree");
> >> String CBfour = request.getParameter("CBfour");
> >>
> >> // pseudocode
> >> for all the checkboxes which are not null, run a corresponding
> >> Perl script...
> >> // QUESTION: how do I run 4 processes at teh same time?
> >>
> >> }
> >>}
>
>
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