java守护进程启动和关闭脚本

# 程序名称PROJECT_NAME=route#程序路径APP_HOME=$(dirname $(pwd))/$PROJECT_NAME#java库目录JAVA_LIB_PATH=$APP_HOME/resource/daemon/lib#JAVA_HOMEJAVA_HOME=/home/software/jdk1.8#依赖路径，route.jar中使用mf文件指定依赖jar包，否则就需要指定所有jar包CLASS_PATH=$APP_HOME/resource/daemon/route.jar#CLASS_PATH=$CLASS_PATH:$JAVA_LIB_PATH/netty-all-4.1.17.Final.jar#CLASS_PATH=$CLASS_PATH:$JAVA_LIB_PATH/disruptor-3.2.1.jar#CLASS_PATH=$CLASS_PATH:$JAVA_LIB_PATH/log4j-api-2.0.2.jar#CLASS_PATH=$CLASS_PATH:$JAVA_LIB_PATH/log4j-core-2.0.2.jar#参数JAVA_OPTS=-Xms512m -Xmx512m -Xnoclassgc -Xverify:none#程序入口类MAIN_CLASS=com.dice.game.StartupWrapper#程序ID文件PID_FILE=${APP_HOME}/${PROJECT_NAME}.pid#日志输出路径LOG_FILE=${APP_HOME}/logs/${PROJECT_NAME}.out#判断文件是否存在，如果不存在则创建if [ ! -f "$PID_FILE" ]; then  　　touch "$PID_FILE"      echo 0 > $PID_FILEfiif [ ! -f "$LOG_FILE" ]; then　　touch "$LOG_FILE"fi #输出echo "service name: $PROJECT_NAME"echo "app home: $APP_HOME"echo "java home: $JAVA_HOME"echo "class path: $CLASS_PATH"echo "main class: $MAIN_CLASS"echo "pid file : $PID_FILE"pid=0#获得pidgetpid() {   pid=`cat $PID_FILE`}#启动项目start() {   getpid   if [ $pid -ne 0 ]; then      echo "================================"      echo "warn:  already started! or bad close last time!"      echo "================================"   fi    echo -n "Starting..."    nohup $JAVA_HOME/bin/java -server $JAVA_OPTS -classpath $CLASS_PATH $MAIN_CLASS >> $LOG_FILE 2>&1 & echo $! > $PID_FILE    getpid    if [ $pid -ne 0 ]; then     echo "================================="         echo "[Start Success] (pid=$pid)"     echo "================================"    else     echo "================================="         echo "[Start Failed]"     echo "================================="    fi}#关闭项目#使用 kill -15 pid 方式来关闭进程，使得程序可以执行shutdownhook释放资源stop() {    getpid    if [ $pid -ne 0 ]; then      skill -15 $pid      echo "================================"      echo "stoping"      echo "================================"   fi}##脚本入口case "$1" in   'start')      start      ;;   'stop')     stop     ;;  *)     echo "Usage: $0 {start|stop}"     exit 1esacexit 0