well, I'm invoking them from over other servers over the internet. For example,
somewhere in some guy's code off at a university there will be a command line
that sends soem info to my program and it needs to read a database and send info
back. Now, I can't use PHP or JSP because those only work if you link to them as
a web page and I needed something completely independant. I know I can put it
together in C, but it's been a really long time since I programed in C. So, I
figured next logical step, since I've done a lot of JSP, was to see if servlets
would do the job. So that's really the long and short of why I'd like to do it
with servlets.
I'd have to assume from your question that you don't think servlets are teh way
to go with this?
-Dan
Gang Zhang wrote:
> Request.getRequestDispatcher("servletName").include(request,response)
> will invoke a servlet
>
> But if you can directly invoke any program (in java, runtime.execute(), in c
> system(), etc), why you want to do it through a servlet?
>
> ----- Original Message -----
> From: "Daniel Lynn" <[EMAIL PROTECTED]>
> To: <[EMAIL PROTECTED]>
> Sent: Wednesday, July 31, 2002 10:51 PM
> Subject: Re: invoking program
>
> > Kind of. Only thing is I want to be able to call it using any other
> programming
> > language. Basically, what I'm doing is creating a bunch of programs that,
> when
> > invoked, read a bunch of data from a database and format it and return the
> > string. However, I don't want to require that the person invoking the
> program be
> > using a Java based language. I'd like to be able to do it from JSP, PHP,
> ASP,
> > Perl, etc. I'd also love to be able to invoke it with Javascript or html,
> but
> > that may be asking a little too much.
> >
> > I did some PHP programming a little ways back and I used a "curl" command
> to
> > send a bunch of data to a cgi file and wait for a delimited string (if you
> do
> > any ecommerce programming, you've probably had to do this when verifying
> the
> > credit card). What that CGI file is doing is kinda what I'm looking for.
> Is
> > there a way to make a servlet get triggered without using an http link
> (aka,
> > without opening it as a page in your browser) using any given programming
> > language?
> >
> > -Dan
> >
> > Gang Zhang wrote:
> >
> > > You can use:
> > >
> > > java.lang.Process proc= java.lang.Runtime.exec("Yourcommand");
> > > //while loop to get process output:
> > > proc.getOutputStream().read(buf);
> > >
> > > Is that what you are talking about?
> > >
> > > ----- Original Message -----
> > > From: "Daniel Lynn" <[EMAIL PROTECTED]>
> > > To: <[EMAIL PROTECTED]>
> > > Sent: Wednesday, July 31, 2002 4:04 PM
> > > Subject: invoking program
> > >
> > > > I've got a task that I'm trying to accomplish and I think there's some
> > > chancew
> > > > that servlets might be a solution. Would anyone be able to point me in
> the
> > > > right direction?
> > > >
> > > > I need to have a program that I can send a request to (without
> importing
> > > the
> > > > code into another program) and have it return a string, much like you
> can
> > > do
> > > > with coding a CGI in C. It would need to run on our server even if
> called
> > > from
> > > > another. Any suggestions?
> > > >
> > > > -Dan
> > > >
> > > >
> > >
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