call a java program from a webapp in tomcat server - the java program is out side of tomcat server

Question

I have a webapp in tomcat server. also i have a java program outside the tomcat server - in linux machine root. i need to call the java program outside and get a response to the webapp. is this possible to do?

Please give me an answer?

Thanks in advance.

Answer 1

You can use exec method on runtime object:

Runtime rt = Runtime.getRuntime(); 
Process proc = rt.exec("whatever_you_want_to_run"); 
int exitVal = proc.exitValue();