不同路径下shell脚本启动java程序时项目根目录问题

Question

问题描述 将java项目打成tar.gz格式, 然后再Linux上解压缩, 文件目录: ./ -conf/ -bin/ -startup.sh -lib/ -logs/ -README.md 我执行./bin/startup.sh启动java程序.但是, 烦人的是: 启动脚本时路径不同, 项目的根目录就会不同. tar根目录下执行sh bin/startup.sh时, java会将tar包根目录作为项目根目录. 代码中new File("logs/xx.log"), 会生成./logs/xx.log, 这是想要的预期效果. 但是, 挡在./bin/下执行sh startup.sh时, new FIle("logs/xx.log")就会在./bin/logs/下产生xx.log文件. 这显然不是想要的效果, 很恼人. startup.sh #!/bin/bash current_path=`pwd` case "`uname`" in Linux) bin_abs_path=$(readlink -f $(dirname $0)) ;; *) bin_abs_path=`cd $(dirname $0); pwd` ;; esac echo "脚本位置: $bin_abs_path" #base=${bin_abs_path}/.. base=$(dirname $(cd `dirname $0`;pwd)) echo "base path: $base" export LANG=en_US.UTF-8 export BASE=$base #can't run repeatedly if [ -f $base/bin/addr.pid ] ; then echo "found bin/addr.pid , Please run stop.sh first ,then startup.sh" 2>&2 exit 1 fi ## set java path if [ -z "$JAVA" ] ; then JAVA=$(which java) fi str=`file $JAVA_HOME/bin/java | grep 64-bit` if [ -n "$str" ]; then JAVA_OPTS="-server -Xms1024m -Xmx1536m -Xmn256m -XX:SurvivorRatio=2 -XX:PermSize=96m -XX:MaxPermSize=256m -Xss256k -XX:-UseAdaptiveSizePolicy -XX:MaxTenuringThreshold=15 -XX:+DisableExplicitGC -XX:+UseConcMarkSweepGC -XX:+CMSParallelRemarkEnabled -XX:+UseCMSCompactAtFullCollection -XX:+UseFastAccessorMethods -XX:+UseCMSInitiatingOccupancyOnly -XX:+HeapDumpOnOutOfMemoryError" else JAVA_OPTS="-server -Xms1024m -Xmx1024m -XX:NewSize=256m -XX:MaxNewSize=256m -XX:MaxPermSize=128m " fi JAVA_OPTS=" $JAVA_OPTS -Djava.awt.headless=true -Djava.net.preferIPv4Stack=true -Dfile.encoding=UTF-8" for i in $base/lib/*; do CLASSPATH=$i:"$CLASSPATH"; done #$JAVA $JAVA_OPTS -classpath .:$CLASSPATH com.jfai.addr.StartUp 1>>$base/bin/nohup.out 2>&1 & $JAVA $JAVA_OPTS -classpath .:$CLASSPATH com.jfai.addr.StartUp 1>$base/bin/nohup.out 2>&1 & echo $! > $base/bin/addr.pid echo "Process addr is running..., pid=$!" cd $current_path