java -jar -Xms4096m -Xmx4096m -XX:MetaspaceSize=256m -XX:MaxMetaspaceSize=256m  /opt/myapp/myapp.jar

nohup /usr/local/java/jdk1.8.0_333/bin/java -jar -Xms8192m -Xmx8192m -XX:MetaspaceSize=256m -XX:MaxMetaspaceSize=256m -XX:+UseConcMarkSweepGC /home/myapp/myapp.jar > nohup.out 2>&1 &

#!/bin/sh
nohup /usr/local/java/jdk1.8.0_102/bin/java -jar -Xms4096m -Xmx4096m -XX:MetaspaceSize=256m -XX:MaxMetaspaceSize=256m   /home/myapp/myapp.jar  > nohup.out 2>&1 &

#!/bin/bash
# ##################################################################
# ### Service start script
# ##################################################################
# 方便查看日志，參數(shù)為 -f
PRG="$0"
P1=$1
#PRGDIR=`dirname "$PRG"`
PRGDIR=`pwd`
# ### 啟動成功提示！
function success () {
? ? echo "#####"
? ? echo "####################### Start Service End! #######################"
? ? echo ""
? ? echo -e " ? ? ? ? ? ? ? ? ? ?\033[32;1;5m [ START SUCCESSFULLY! ]\033[0m"
? ? echo ""
}
# ### 啟動失敗提示警告！
function failed () {
? ? echo "#####"
? ? echo "####################### Start Service End! #######################"
? ? echo ""
? ? echo -e " ? ? ? ? ? ? ? ? ? \033[37;41;1;5m [ FAILED! FAILED! FAILED! ]\033[0m"
? ? echo -e " ? ? ? \033[37;41;1;5m [ $1 ]\033[0m"
? ? echo ""
}
echo "####################### Start Service ############################"
echo "#####"
echo "##### Current Working Path: $PWD"
# ### Script running flag!
STATUS="OK!"
JAVA_VERSION=`java -version 2>&1 |awk 'NR==1{ gsub(/"/,""); print $3 }'`
echo "##### Java Version : $JAVA_VERSION"
# ### 判斷jdk版本是否是1.8
JAVA_VERSION_P="1.8"
JAVA_PATH=""
if [[ $JAVA_VERSION =~ $JAVA_VERSION_P ]]
then
? ? echo "##### The JDK is OK!"
? ? JAVA_PATH=`which java`
else
? ? echo "##### The JDK is not supported!"
fi
# ### 掃描/opt和/usr目錄獲取JAVA_PATH
reg='jdk1.8.0_[0-9]{1,3}/bin/java'
if [ "$JAVA_PATH" = "" ]; then
? ? echo "##### Find JDK directory!"
? ? echo "##### '/opt' And '/usr' directory will be scanned."
? ? echo "##### Start scan '/opt' directory ... ..."
? ? JAVA_PATH_DIR=$(find /opt -name java 2>&1)
? ? for i in $JAVA_PATH_DIR
? ? do
? ? ? ? if [[ $i =~ $reg ]]; then
? ? ? ? ? ? echo "##### JDK_PATH : $i"
? ? ? ? ? ? echo "##### The JDK_PATH is OK!"
? ? ? ? ? ? JAVA_PATH=$i
? ? ? ? fi
? ? done
fi
if [ "$JAVA_PATH" = "" ]; then
? ? echo "##### '/opt' directory Not found the JDK!"
? ? echo "##### Start scan '/usr' directory ... ..."
? ? JAVA_PATH_DIR=$(find /usr -name java 2>&1)
? ? for i in $JAVA_PATH_DIR
? ? do
? ? ? ? if [[ $i =~ $reg ]]; then
? ? ? ? ? ? echo "##### JDK_PATH : $i"
? ? ? ? ? ? echo "##### The JDK_PATH is OK!"
? ? ? ? ? ? JAVA_PATH=$i
? ? ? ? fi
? ? done
fi
if [ "$JAVA_PATH" = "" ]; then
? ? echo "##### '/usr' directory Not found the JDK!"
? ? msg="The JDK Not found, Please configure the JDK!"
? ? echo "##### $msg"
? ? failed "$msg"
? ? exit
fi
# ### 獲取jar文件,若多個(gè)jar文件,默認(rèn)選擇使用最新文件
echo "##### Get running jar file, if more than jar file, the default option is to use the latest file."
JarFileName=$(ls -lt $PRGDIR/*.jar 2>&1|awk '/^-/ {print $NF}'|sed -n '1p')
if [ -z "$JarFileName" ]; then
? ? msg="The jar file is not exist! Please confirm before implementation."
? ? echo "##### $msg"
? ? failed "$msg"
? ? exit
fi
echo "##### Currently Running JarFileName: $JarFileName"
# ### 設(shè)置JVM參數(shù)
CATALINA_OPTS="-Xms8192m -Xmx8192m -XX:MetaspaceSize=256m -XX:MaxMetaspaceSize=256m -XX:+UseConcMarkSweepGC"
RUN_COM="nohup $JAVA_PATH -jar $CATALINA_OPTS $JarFileName 2>&1"
echo "##### Run the command : $RUN_COM"
#nohup $JAVA_PATH -jar $CATALINA_OPTS $JarFileName > nohup.out 2>&1 &
setsid $JAVA_PATH -jar $CATALINA_OPTS $JarFileName > nohup.out 2>&1 &
# ### 將jar包啟動對應(yīng)的pid寫入文件中，為停止時(shí)提供pidi
# echo $! > run.pid
if [ $? -eq 0 ]; then
? ? success
? ? if [ ?"$P1" == "-f" ]; then
? ? ? ? echo "#################### tail -f nohup.out #########################"
? ? ? ? tail -f nohup.out
? ? fi
else
? ? failed "$msg"
fi