Solved

JSP Question(Urgent Please)

Posted on 2004-03-29
8
161 Views
Last Modified: 2010-04-01
How can I call a Perl function from my JSP code?
My JSP file is at the directory: "/export/usr/../code/";
The Perl file is in the same directory as the JSP file.

The Perl file name is get_id and it takes a parameter (of type String).

On the command prompt it works like this:
$cd /export/usr/../code/
$./get_id myname
W1234

Now in My JSP (Java code), how can I write a system command?

I need to write something in my JSP code:
String myinput = "Jon";
String ret;
ret = system /export/usr/../code/get_id myinput;
//ret should hold the string "W1234".


How can I write the JSP code above with correct syntax?
Thanks.

0
Comment
Question by:tooki
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
8 Comments
 
LVL 92

Accepted Solution

by:
objects earned 100 total points
ID: 10708360
hres an example that runs an external process:
http://www.objects.com.au/java/examples/util/ConsoleExec.do
0
 

Author Comment

by:tooki
ID: 10708641
Thanks!
The eamples there seemed to be little complex.
It will be helpful to me if I know how to write a line of code in Java that runs an executible on the OS.
In C++ we write system("executiblename anyparameter")..
the same for Java code..

Thanks.
0
 
LVL 92

Expert Comment

by:objects
ID: 10708683
Process p = Runtime.getRuntime().exec(command);
0
VIDEO: THE CONCERTO CLOUD FOR HEALTHCARE

Modern healthcare requires a modern cloud. View this brief video to understand how the Concerto Cloud for Healthcare can help your organization.

 
LVL 6

Expert Comment

by:jarasa
ID: 10711908
If you can call your pearl from the web why don't just make a response.sendRedirect(URL); ?
Javier
0
 
LVL 19

Expert Comment

by:Kuldeepchaturvedi
ID: 10717389
If I remember correctly, getRuntime.exec() not gonna return any value that process may provide. All it can return is a return code telling if process exited normally.
So it won't do any good in this senario.
I think  you will have to make a URL connection to your Perl function and readout the response from URLConnection
0
 
LVL 92

Expert Comment

by:objects
ID: 10718181
>  All it can return is a return code

It also returns all the stdout, and stderr.
0

Featured Post

On Demand Webinar: Networking for the Cloud Era

Did you know SD-WANs can improve network connectivity? Check out this webinar to learn how an SD-WAN simplified, one-click tool can help you migrate and manage data in the cloud.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Getting to know the threat landscape in which DDoS has evolved, and making the right choice to get ourselves geared up to defend against  DDoS attacks effectively. Get the necessary preparation works done and focus on Doing the First Things Right.
After seeing numerous questions for Dynamic Data Validation I notice that most have used Visual Basic to solve the problem. This suggestion is purely formula based and can be used in multiple rows.
There's a multitude of different network monitoring solutions out there, and you're probably wondering what makes NetCrunch so special. It's completely agentless, but does let you create an agent, if you desire. It offers powerful scalability …
Visualize your data even better in Access queries. Given a date and a value, this lesson shows how to compare that value with the previous value, calculate the difference, and display a circle if the value is the same, an up triangle if it increased…
Suggested Courses

624 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question