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一个启动,停止,重启微服务的shell脚本例子

在做微服务的时候,需要定制一个shell脚本,类似标准linux 命令那样通过start, stop, restart 去启动应用等操作, 这里收集了一个脚本,可以参考。
#!/bin/sh
## java env
export JAVA_HOME=/usr/local/java/jdk1.7.0_72
export JRE_HOME=$JAVA_HOME/jre
## service name
APP_NAME=user
SERVICE_DIR=/home/wusc/edu/service/$APP_NAME
SERVICE_NAME=edu-service-$APP_NAME
JAR_NAME=$SERVICE_NAME\.jar
PID=$SERVICE_NAME\.pid
cd $SERVICE_DIR
case "$1" in
    start)
        nohup $JRE_HOME/bin/java -Xms256m -Xmx512m -jar $JAR_NAME >/dev/null 2>&1 &
        echo $! > $SERVICE_DIR/$PID
        echo "=== start $SERVICE_NAME"
        ;;
    stop)
        kill `cat $SERVICE_DIR/$PID`
        rm -rf $SERVICE_DIR/$PID
        echo "=== stop $SERVICE_NAME"
        sleep 5
        ##
        ## edu-service-aa.jar
        ## edu-service-aa-bb.jar
        P_ID=`ps -ef | grep -w "$SERVICE_NAME" | grep -v "grep" | awk '{print $2}'`
        if [ "$P_ID" == "" ]; then
            echo "=== $SERVICE_NAME process not exists or stop success"
        else
            echo "=== $SERVICE_NAME process pid is:$P_ID"
            echo "=== begin kill $SERVICE_NAME process, pid is:$P_ID"
            kill -9 $P_ID
        fi
        ;;
    restart)
        $0 stop
        sleep 2
        $0 start
        echo "=== restart $SERVICE_NAME"
        ;;
    *)
        ## restart
        $0 stop
        sleep 2
        $0 start
        ;;
esac
exit 0

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