vim restart_tomcat.sh
#!/bin/bash
# Filename: restart_tomcat.sh
# Description: Restart tomcat
# Date: 2017-02-06
# Author: songwj
# Version: v1.0
export LANG=zh_CN.UTF-8
export JAVA_HOME=/usr/java/jdk1.7.0_79
export JRE_HOME=$JAVA_HOME/jre
export CATALINA_BASE=/usr/local/apache-tomcat-7.0.79
export PATH=$JAVA_HOME/bin:$JRE_HOME/bin:$CATALINA_BASE/bin:$PATH
export CLASSPATH=.:$JAVA_HOME/lib:$JRE_HOME/lib:$CLASSPATH
echo "[$(date +'%F %T')] >>> Tomcat begin to restart."
$CATALINA_BASE/bin/shutdown.sh
# Kill all remaining processes
pidList=$(ps aux | grep $CATALINA_BASE | grep -v grep | awk '{print $2}')
for pid in $pidList; do
kill -9 $pid
echo "[$(date +'%F %T')] >>> Kill the process [$pid] successfully."
done
$CATALINA_BASE/bin/startup.sh
echo "[$(date +'%F %T')] >>> Tomcat restart complete."
注意：直接使用tomcat中的shutdown.sh命令关闭tomcat服务时，往往无法正常关闭所有服务，会有残留进程没有正常关闭，久而久之，残留进程会侵占越来越多的系统资源，甚至重启后都无法正常访问项目，所以每次在执行完shutdown.sh命令后，需杀死残留进程，然后再重启服务，这点非常重要。
1. 问题：手动调用Shell重启脚本项目运行正常，但使用crontab定时调用时项目重启访问出现中文乱码？
解决方法：因为crontab调用脚本的运行环境和直接手动调用脚本的运行环境不同，所以在脚本中需指明所调用的环境，而且所调用的环境尽量写成绝对路径，避免出现不必要麻烦。此处使用crontab重启出现乱码，可以查看下正常环境中所使用的编码环境，经查为zh_CN.UTF-8，则在脚本中明确声明export LANG=zh_CN.UTF-8即可。
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#!/bin/bash
#Filename:restart_tomcat.sh
# Description: Restart tomcat
# Date: 2017-02-06
# Author: songwj
# Version: v1.0
export LANG=zh_CN.UTF-8
export JAVA_HOME=/java/jdk1.8.0_91
export JRE_HOME=$JAVA_HOME/jre
export CATALINA_BASE=/java/apache-tomcat-9.0.24
export PATH=$JAVA_HOME/bin:$JRE_HOME/bin:$CATALINA_BASE/bin:$PATH
export CLASSPATH=.:$JAVA_HOME/lib:$JRE_HOME/lib:$CLASSPATH
echo "[$(date +'%F %T')] >>> Tomcat begin to restart."
$CATALINA_BASE/bin/shutdown.sh
# Kill all remaining processes
pidList=$(ps aux | grep $CATALINA_BASE | grep -v grep | awk '{print $2}')
for pid in $pidList; do
kill -9 $pid
echo "[$(date +'%F %T')] >>> Kill the process [$pid] successfully."
done
$CATALINA_BASE/bin/startup.sh
echo "[$(date +'%F %T')] >>> Tomcat restart complete."