Running a Java program with GPIO controls in startup

[KrungKrungXD]

Hi, i have a java program that have a gpio controls. i can run the program in the terminal using (sudo java - jar path/to/my/program.jar). Now i want to run the program on startup .. anyone can help me ? thanks in advance.

The program (with GUI) is created in Netbeans IDE
Operating System installed is Ubuntu Mate

[DougieLawson]

sudo nano /etc/systemd/system/javathing.service

Code: Select all

[Unit]
Description=javaThing daemon service
[Service]
ExecStart=/usr/bin/java -jar path/to/my/program.jar
StandardOutput=syslog
StandardError=syslog
# Don't need "sudo" if we run as root.
User=root
Group=root
SyslogIdentifier=javaThing
[Install]
WantedBy=multi-user.target

sudo systemctl enable javathing.service
sudo systemctl start javathing.service

[KrungKrungXD]

Thanks for the reply, i tried your solution but I get this error "Failed to execute operation: Invalid argument" when i run this command "sudo systemctl enable javathing.service"

[DougieLawson]

Have you created the right service file in the right place?

This is what you should get in your LXTerminal window

Code: Select all

pi@viking ~ $ cat /etc/systemd/system/javathing.service
[Unit]
Description=javaThing daemon service
[Service]
ExecStart=/usr/bin/java -jar path/to/my/program.jar
StandardOutput=syslog
StandardError=syslog
# Don't need "sudo" if we run as root.
User=root
Group=root
SyslogIdentifier=javaThing
[Install]
WantedBy=multi-user.target
pi@viking ~ $ sudo systemctl enable javathing.service
Created symlink from /etc/systemd/system/multi-user.target.wants/javathing.service to /etc/systemd/system/javathing.service.
pi@viking ~ $ sudo systemctl start javathing.service
pi@viking ~ $

[KrungKrungXD]

yes I am sure that the file had been created, i looked for the javathing.service file in the /etc/systemd/system/
Here's what inside the file ..

Code: Select all

[Unit]
Description=javaThing daemon service
[Service]
ExecStart=/usr/bin/java -jar /home/pi/Desktop/dist/DPK.jar
StandardOutput=syslog
StandardError=syslog
# Don't need "sudo" if we run as root.
User=root
Group=root
SyslogIdentifier=javaThing
[Install]
WantedBy=multi-user.target

[DougieLawson]

sudo systemctl enable javathing.service
sudo systemctl start javathing.service

The way I get those commands into the system is sudo systemctl enable jav[TAB][ENTER] which lets filename completion fill in the rest of the filename.

[KrungKrungXD]

still getting the same error . I am new to linux, i didnt understand what the error means . Any other advice how to run the program on startup ? I tried to add the program in "Startup Application Preference" but it doesn't work.

[DougieLawson]

You are running Raspbian Jessie aren't you?

[KrungKrungXD]

No sir, I installed Ubuntu Mate on rpi3, the java program is created in Netbeans IDE.

[KrungKrungXD]

I guess I need to update my thread. Sorry for that

[DougieLawson]

16.04 should have systemd unless you'd disabled it. It could be that Mate has a different place than Raspbian for user's service files.

Try creating it as /lib/systemd/system/javathing.service