centos7.6 Installation Method for Tomcat 8.5.39

Here's how centos7.6 installs Tomcat-8.5.39, as follows:

# Close Firewall 
systemctl stop firewalld.service
systemctl disable firewalld
setenforce 0
sed -i '/SELINUX=/ s/enforcing/disabled/' /etc/selinux/config

#linux  To update yum source   Change to Ali Yunyuan 
yum install wget vim -y
#mkdir -pv /etc/yum.repos.d/bak
#mv -if /etc/yum.repos.d/* /etc/yum.repos.d/bak
#a=`cat /etc/redhat-release |awk '{print $4}'|awk -F . '{print $1}'`
#if [ $a == 6 ];then
#  wget -O /etc/yum.repos.d/CentOS-Base.repo http://mirrors.aliyun.com/repo/Centos-6.repo
#else
#  wget -O /etc/yum.repos.d/CentOS-Base.repo http://mirrors.aliyun.com/repo/Centos-7.repo
#fi
#yum clean all
#yum makecache
#yum update

# Installation prerequisites 
yum install gcc gcc-c++ automake pcre pcre-devel zlib zlib-devel openssl openssl-devel tar unzip zip autoconf libtool make -y

# install JDK
yum remove -y java*.x86_64
yum -y remove java-1.7.0-openjdk* 
yum -y remove java-1.8.0-openjdk*
yum install java-1.8.0-openjdk* -y
java -version
javac -version

# install Tomcat
tar -xzvf /opt/soft/apache-tomcat-8.5.39.tar.gz -C /usr/local/
mv -f /usr/local/apache-tomcat-8.5.39 /usr/local/tomcat8.5.39
chmod 777 /usr/local/tomcat8.5.39/bin/*.sh
cp /opt/soft/tomcat /etc/init.d/
chmod 755 /etc/init.d/tomcat
/etc/init.d/tomcat restart
chkconfig --add tomcat
chkconfig tomcat on

Tomcat Start-Stop Script

#!/bin/bash
# description: Tomcat7 Start Stop Restart
# processname: tomcat7
# chkconfig: 234 20 80

CATALINA_HOME=/usr/local/tomcat8.5.39

case $1 in
  start)
    sh $CATALINA_HOME/bin/startup.sh
    ;;
  stop)
    ps -e|grep java|awk '{print "kill -9 "$1}'|sh
    # sh $CATALINA_HOME/bin/shutdown.sh
    ;;
  restart)
    ps -e|grep java|awk '{print "kill -9 "$1}'|sh
    sleep 3
    # sh $CATALINA_HOME/bin/shutdown.sh
    sh $CATALINA_HOME/bin/startup.sh
    ;;
  *)
    echo 'please use : tomcat {start | stop | restart}'
  ;;
esac
exit 0

summary