Calling a java program from a perl CGI

The perl program takes form data, does stuff with it, writes it to a file, and then calls a java program to encrypt it, and email it.
When I telnet to the server, I can run the java program using:
java CryptoMail.class [email protected] data.txt
The java program uses jar files which are defined in the Classpath in an .sh script in the etc/profile.d/ directory.
When I run the perl cgi from the web, it doesn't work. I figured that it wasn't getting the classpath defined because the user wasn't actually logging in so I tried it with java -classpath etc...
Any ideas???
I tried the following:
==================
$cmdtorun='/usr/j2sdk1.4.0_02/bin/java CryptoMail $email $file';
system($cmdtorun);
==================
and also tried variations of the following:
==================
/usr/j2sdk1.4.0_02/bin/java -classpath .:/home/sites/site1/web/cgi-bin/activation.jar:/home/sites/site1/web/cgi-bin/mail.jar /home/sites/site1/web/cgi-bin/CryptoMail [email protected] /home/sites/site1/web/cgi-bin/wellsfargo.txt
==================

>
Any ideas???Write a script file that explicitly paths everything.
Test it by setting the class path and path to nothing in the environment and seeing if it works.
Redirect errors from everything to a log file.
Then run the script from your perl program. Verify that it did not return any errors. Verify there are no errors in the log file.

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Message was edited by:
LondonJavaDev

Thanks Prometheuzz
Is the main difference between your suggestion and
using the Runtime.getRuntime().exec(cmd) way of doing
things is that in the former both eill run as the
same process (Thread) but in the second scenario the
.getRuntime().exec(cmd) will start a separate new
thread?
Many ThanksCorrect. But you can create a sort of wrapper class for A which implements Runnable and stuff it in it's own thread. If you're dealing with Java code only, I advise you to create threads yourself instead of letting your OS handle them.
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class A {
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class B {
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Calling one java program from another

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Thanks, warnerja
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Edited by: Thomas Zloch on Nov 26, 2010 1:33 PM - priority normalised

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Calling a java program from a perl CGI

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