一个通用的java应用程序启动shell脚本详解编程语言

一个通用的java应用程序启动shell脚本

#!/bin/sh 
current_path=`pwd` 
case "`uname`" in 
    Linux) 
      bin_abs_path=$(readlink -f $(dirname $0)) 
      ;; 
   *) 
      bin_abs_path=`cd $(dirname $0); pwd` 
      ;; 
esac 
base=${bin_abs_path}/.. 
export LANG=en_US.UTF-8 
export USER_CLASSPATH=$USER_CLASSPATH:$base/conf 
 
if [ -f $base/bin/worker.pid ] ; then 
   echo "found worker.pid , Please run stop.sh first ,then startup.sh" 2>&2 
    exit 1 
fi 
 
for f in $base/lib/*.jar; do 
  if [ "$USER_CLASSPATH" ]; then 
    export USER_CLASSPATH=$USER_CLASSPATH:$f 
  else 
    export USER_CLASSPATH=$f 
  fi 
done 
 
USER_OPTION=-Duser.dir=$base 
JAVA_OPTS="-server -Xms512m -Xmx512m -Xmn128m -XX:SurvivorRatio=2 -XX:PermSize=16m -XX:MaxPermSize=32m -Xss256k -XX:-UseAdaptiveSizePolicy -XX:MaxTenuringThreshold=15 -XX:+DisableExplicitGC -XX:+UseConcMarkSweepGC -XX:+CMSParallelRemarkEnabled -XX:+UseCMSCompactAtFullCollection -XX:+UseFastAccessorMethods -XX:+UseCMSInitiatingOccupancyOnly -XX:+HeapDumpOnOutOfMemoryError" 
WORKER_OPTS="-DappName=jbus-worker" 
 
echo $base 
 
java $JAVA_OPTS -cp $USER_CLASSPATH $USER_OPTION $WORKER_OPTS cn.outofmemory.worker.Main >> $base/logs/worker.log 2>&1 & 
echo $! > $base/bin/worker.pid 
cat worker.pid | xargs echo "worker start... "