Autorun jar on Raspberry Pi (Raspbian) after boot up, rc.local not working?

Question

I want to auto run a .jar file after my Raspberry Pi boots up.

Normally I execute to .jar file with the following command (works great):

sudo java -classpath .:phidget21.jar -jar TestSensor.jar

(I can't simply use java -jar TestSensor.jar since the phidget21.jar needs to be appended to make the TestSensor.jar work properly)

Now, I want to execute the above command at the boot up of my raspberry pi.

As suggested in many places I tried to solve it with the rc.local file.

I added the following two lines:

cd /home/pi
sudo java -classpath .:phidget21.jar -jar TestSensor.jar

Unfortunately that doesn't work.

Even

cd /home/pi
sudo java -jar TestSensor.jar

Doesn't start the TestSensor.jar on a boot up.

What am I doing wrong? Any idea how to fix it?

Thanks

Answer 1

You could achieve that with crontab. As root using eg. crontab -e (the recommended way of editing the crontab file) you can add the line

@reboot /usr/bin/java -classpath /home/pi/:/home/pi/lib/phidget21.jar -jar /home/pi/TestSensor.jar

As indicated you may have to add full paths to java, elements in the classpath and TestSensor.jar. You should replace "my" paths with the actual locations of your java and JARs.

Cheers,