4、shell脚本编程（start、 stop、 restart）

shell脚本编程（start、 stop、 restart）
#!/bin/sh
##java env export JAVA_HOME=$JAVA_HOME export JRE_HOME=$JAVA_HOME/jre
##service name APP_NAME=user
SERVICE_DIR=/home/admin/product/njztc/service/$APP_NAME SERVICE_NAME=njztc_service_$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 $1 >$SERVICE_DIR/$PID echo "===== start $SERVICE_NAME" ;;
stop) kill 'cat $SERVICE_DIR/$PID' rm -rf $SERVICE_DIR/$PID echo "====== stop $SERVICE_NAME"
sleep 5 P_ID=`ps -ef | grep -w "$SERVICE_NAME" | grep -v "grep" | awk '{print $2}'` if ["$P_ID" == ""]; then echo "======= $SERVER_NAME process not exits or stop success" else echo "======= $SERVER_NAME process pid is:$P_ID" echo "======= begin kill $SERVER_NAME process, pid is :$P_ID" kill -9 $P_ID fi ;;
restart) $0 stop sleep 2 $0 start echo "======= restart $SERVER_NAME" ;;

*) ## restart $0 stop sleep 2 $0 start

esac exit 0