Linux Launch java program on startup (EC2 instance

问题:

my server program needs to be launched on the startup of an EC2 instance. At the minute im just launching it from my SSH with the following commands:

 java -jar ~/DocumentManager/DocumentServer-0.2.jar  

I tried adding this to the .bashrc and /etc/rc.local files but they only seem to work when i ssh in.

Anyone know how to make it so an instance of my application is launched when the computer boots?

Thanks,

Ben

回答1:

It's possible you can create a script java_server_launch.sh like this:

 #! /usr/bin/sh

    PATH=/bin:/sbin:/usr/bin:/usr/sbin:/usr/local/bin:/usr/local/sbin
    JAVA=/usr/bin/java
    MY_SERVER=/home/your_username/DocumentManager/DocumentServer-0.2.jar
    USER=your_username
    /bin/su - $USER -c "$JAVA -jar $MY_SERVER &"

Put your script under /etc/init.d directory, and then use the command:

update-rc.d java_server_launch.sh defaults

more on update-rc.d command by using man update-rc.d.

Hope this help.

Regards.

回答2:

Add ampersand(symbol '&') at the end of the command. For example, in your case, java -jar ~/DocumentManager/DocumentServer-0.2.jar &

Old question, but my answer might be helpful for people who look in future.