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系统启动时运行可执行 jar 文件

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系统启动时运行可执行 jar 文件

我有一个 java 可执行 jar 文件，我正尝试在终端中运行它。

我需要自动运行该项目，以便每当我启动电脑时 jar 文件就会像系统服务一样运行。

答案1

您可以通过将命令添加到末尾来执行此操作，/etc/rc.local您必须使用 sudo 访问权限来编辑此文件。

因此这个命令应该对你有用，your_executable.jar用你实际的 jar 文件替换。

sudo echo 'java -jar your_executable.jar' >> /etc/rc.local

答案2

尝试这个：

#!/bin/sh
#
# chkconfig: 345 50 83
#
### BEGIN INIT INFO
# Short description: Trigger Beamer on system startup
# Description: Trigger blupay beamer on system start up
### END INIT INFO

#Source function library
. /etc/rc.d/init.d/functions

#targets beamer config file
if [ -f /etc/sysconfig/yourapp]; then
    source /etc/sysconfig/yourapp
fi


#start httpd in the C locale by default.
YOURAPP_LANG=${YOURAPP_LANG-"java"}

# Path to .jar file.
yourapp=path/path_a/path_b
prog=app
pidfile=${PIDFILE-/var/run/yourapp/app.pid}
lockfile=${LOCKFILE-/var/lock/subsys/app}
RETVAL=0

start() { 
    echo -n "starting $prog"
    LANG=${YOURAPP_LANG}
    RETVAL=$?
    java -jar ${yourapp}/yourjarfilename.jar
    echo
        [ $RETVAL = 0 ] && touch ${lockfile}
        return $RETVAL
}
stop() {
    echo -n $"Stopping $prog: "
        killproc -p ${pidfile} -d  $app
        RETVAL=$?
        echo
        [ $RETVAL = 0 ] && rm -f ${lockfile} ${pidfile}
}
reload() {
    echo -n $"Reloading $prog: "
    if ! LANG=$BEAMER_LANG $app$OPTIONS -t >&/dev/null; then
        RETVAL=6
        echo $"not reloading due to configuration syntax error"
        failure $"not reloading $beamer due to configuration syntax error"
    else
        # Force LSB behaviour from killproc
        LSB=1 killproc -p ${pidfile} $app -HUP
        RETVAL=$?
        if [ $RETVAL -eq 7 ]; then
            failure $"app shutdown"
        fi
    fi
    echo
}

# See how we were called.
case "$1" in
  start)
        start
        ;;
  stop)
        stop
        ;;
  status)
        status -p ${pidfile} $app
        RETVAL=$?
        ;;
  restart)
        stop
        start
        ;;
  force-reload|reload)
        reload
        ;;
  *)
        echo $"Usage: $prog {start|stop|restart||force-reload|reload|status}"
        RETVAL=2
esac

exit $RETVAL

转到/etc/sysconfig/，创建一个文件yourapp：添加以下内容：

#configuration file for blupay beamer

#
#
# To pass additional options (for instance, -D definitions) to the
# httpd binary at startup, set OPTIONS here.
# Add options only if you want to
#OPTIONS=
#

#
# By default, bemaer process is started in the java locale; to 
# change the locale in which the server runs, the BEAMER_LANG
# variable can be set.
#
#YOURAPP_LANG=java
#

#
#By default, your app will create a app.pid 
#
#PID_FILE=/var/run/app/appp.pid
#

现在您应该能够按如下方式运行它：

sudo service app start

务必用适当的名称app替换YOURAPP

答案3

比作为系统服务运行更简单的解决方案是使用supervisord。请参阅完整说明http://supervisord.org/

简洁版本

sudo apt install -y supervisor

> cat /etc/supervisor/conf.d/tick.conf 
; tick config file
[program:tick]
command=/tmp/ticker.bash
environment=CTX="bogus-42"


> cat /tmp/ticker.bash
#!/bin/bash
while true ; do
  echo "tick   CTX='${CTX}'   SUPERVISOR_PROCESS_NAME=${SUPERVISOR_PROCESS_NAME}   $(date)"
  sleep 1
done


# ensure supervisor is running
> sudo systemctl restart  supervisor

# ensure tick task is running
> sudo supervisorctl start all
> sudo supervisorctl status
tick      RUNNING   pid 17946, uptime 0:06:11


> d /var/log/supervisor/*                                        
-rw-r--r-- 1 root root  1607 Nov 22 15:17 /var/log/supervisor/supervisord.log
-rw------- 1 root root     0 Nov 22 15:16 /var/log/supervisor/tick-stderr---supervisor-S4zZDy.log
-rw------- 1 root root 16548 Nov 22 15:19 /var/log/supervisor/tick-stdout---supervisor-5z8GTx.log


> sudo tail -3 /var/log/supervisor/tick-stdout---supervisor-5z8GTx.log
tick   CTX='bogus-42'   SUPERVISOR_PROCESS_NAME=tick   Tue Nov 22 15:20:12 PST 2016
tick   CTX='bogus-42'   SUPERVISOR_PROCESS_NAME=tick   Tue Nov 22 15:20:13 PST 2016
tick   CTX='bogus-42'   SUPERVISOR_PROCESS_NAME=tick   Tue Nov 22 15:20:14 PST 2016

答案4

首先，你必须在你的 ubuntu 中安装 java。

其次，jar 文件不是可以运行的可执行文件，但您需要在启动时运行 java，因此您必须编写一个脚本，使其可执行或将您的命令放在您的/etc/rc.local文件中：

java -jar file.jar &
exit 0

祝你好运

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