wget http://mirror.bit.edu.cn/apache/tomcat/tomcat-9/v9.0.31/bin/apache-tomcat-9.0.31.tar.gz

[root@ly-01 ~]# tar -zxf apache-tomcat-9.0.31.tar.gz

mv apache-tomcat-9.0.31 order-tomcat

#java environment
export JAVA_HOME=/app/jdk1.8.0_202
#MYSQL HOME
export MYSQL_HOME=/app/mysql-5.7.25
#TOMCAT HOME
export TOMCAT_HOME=/root/order-tomcat
export M2_HOME=/app/apache-maven-3.6.3
export CLASSPATH=.:${JAVA_HOME}/jre/lib/rt.jar:${JAVA_HOME}/lib/dt.jar:${JAVA_HOME}/lib/tools.jar
export PATH=$PATH:${JAVA_HOME}/bin:$M2_HOME/bin:${MYSQL_HOME}/bin:${TOMCAT_HOME}/bin

[root@ly-01 ~]# source /etc/profile

[root@ly-01 ~]# startup.sh 
Using CATALINA_BASE:   /root/order-tomcat
Using CATALINA_HOME:   /root/order-tomcat
Using CATALINA_TMPDIR: /root/order-tomcat/temp
Using JRE_HOME:        /app/jdk1.8.0_202
Using CLASSPATH:       /root/order-tomcat/bin/bootstrap.jar:/root/order-tomcat/bin/tomcat-juli.jar
Tomcat started.
[root@ly-01 ~]# tail -f order-tomcat/logs/catalina.out