jruby关于rails和jar文件

Question

How can run an executable jar file through a jruby on rails application? Where would I include the code to run my jar file?

I have looked all over but have yet to see a defined method for doing this type of thing and I'm also very new to rails.

Answer 1

Apparently, you can do 3 things to run an external command:

• Kernel.system "command"
• %x[command]
• command

So, in your case your Ruby code would probably be:

`java -jar <name of jar>.jar`

And it would work. It might be that you have to add the full path for Java here, but you might have to try that out yourself.