CentOS 7 设置 Java 开机自启
JDK 8 内存参数:
-XX:MetaspaceSize=64m -XX:MaxMetaspaceSize=128m
先创建基本的start、stop、restart脚本:
jarStart.sh脚本:
#!/bin/sh
nohup java -jar /root/myjar-1.0.1-SNAPSHOT.jar > myjar.log 2>&1 &
echo Start Success!
jarStop.sh脚本:
#!/bin/sh
PID=`ps -ef | grep java | grep -v grep | awk '{print $2}'`
if [ "" != "$PID" ]; then
echo "killing $PID"
kill -9 $PID
echo "Java stoped."
else
echo "Java not running!"
fi
jarRestart.sh脚本:
#!/bin/sh
PID=`ps -ef | grep java | grep -v grep | awk '{print $2}'`
if [ "" != "$PID" ]; then
echo "killing $PID"
kill -9 $PID
echo "Java stoped."
else
echo "Java not running!"
fi
nohup java -jar /root/myjar-1.0.1-SNAPSHOT.jar > myjar.log 2>&1 &
echo $! > tpid
echo Start Success!
赋予以上sh脚本权限:
chmod +x *.sh
新建开机自启动service脚本,以myjar.service命名:
cd /usr/lib/systemd/system
vi myjar.service
输入以下内容;(start、stop、restart脚本路径要根据自己情况更改)
[Unit]
Description=myjar
After=syslog.target network.target
[Service]
Type=forking
ExecStart=/root/jarStart.sh
ExecReload=/root/jarRestart.sh
ExecStop=/root/jarStop.sh
PrivateTmp=true
User=root
Group=root
[Install]
WantedBy=multi-user.target
赋予777权限:
chmod 777 myjar.service
设置service脚本开机自启动:
systemctl enable myjar.service
其他命令:
# 启动
systemctl start myjar
# 查看运行状态
systemctl status myjar
# 停止
systemctl stop myjar
# 加入开机自启
systemctl enable myjar
# 取消开机自启
systemctl disable myjar
# 判断服务是否处于开机自启状态,输出enabled即代表开机自启
systemctl is-enabled myjar
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