Beefy Boxes and Bandwidth Generously Provided by pair Networks
Don't ask to ask, just ask

Re: Invoke perl script from a Java program

by fmerges (Chaplain)
on Aug 11, 2009 at 13:11 UTC ( #787608=note: print w/ replies, xml ) Need Help??

in reply to Invoke perl script from a Java program


Check this example, to get an idea:


fmerges at

Comment on Re: Invoke perl script from a Java program
Re^2: Invoke perl script from a Java program
by Anonymous Monk on Aug 11, 2009 at 15:05 UTC
    The clunky way I've used in the past was basically to call Runtime.exec(String[]) like this:
    String[] command = new String[]{"perl", scriptName, arg1}; try { Runtime r = Runtime.getRuntime(); Process p = r.exec(command); // Read the results InputStream in = p.getInputStream(); // ... in.close(); } catch(Exception e) { e.printStackTrace(); }

    The downside is that (at least on a Unix-like system) the Runtime#exec() call has to fork a copy of the Java VM, so you need plenty of RAM to get away with this.

    I've sure there must be some cleverer way using JNI, but I've never got my head around it.

Log In?

What's my password?
Create A New User
Node Status?
node history
Node Type: note [id://787608]
and the web crawler heard nothing...

How do I use this? | Other CB clients
Other Users?
Others making s'mores by the fire in the courtyard of the Monastery: (5)
As of 2015-05-07 03:44 GMT
Find Nodes?
    Voting Booth?

    In my home, the TV remote control is ...

    Results (154 votes), past polls