參考：https://tsov.net/home/view/2141/

　　只部署一個tomcat， 不用配置環境變數。但部署多個，每個tomcat的配置檔案裡 $CATALINA_BASE 和 $CATALINA_HOME 指向的都是同一個預設的環境變數, 所以需要在/etc/profile裡為每個tomcat配置環境變數

#tomcat
export CATALINA_BASE=/usr/local/tomcat/apache-tomcat-8.0.48
export CATALINA_HOME=//usr/local/tomcat/apache-tomcat-8.0.48
export TOMCAT_HOME=/usr/local/tomcat/apache-tomcat-8.0.48
#tomcat1
export CATALINA_1_BASE=/usr/local/tomcat1/apache-tomcat-8.0.48
export CATALINA_1_HOME=//usr/local/tomcat1/apache-tomcat-8.0.48
export TOMCAT_1_HOME=/usr/local/tomcat1/apache-tomcat-8.0.48
#tomcat2
export CATALINA_2_BASE=/usr/local/tomcat2/apache-tomcat-8.0.48
export CATALINA_2_HOME=//usr/local/tomcat2/apache-tomcat-8.0.48
export TOMCAT_2_HOME=/usr/local/tomcat2/apache-tomcat-8.0.48
 

儲存，執行source /etc/profile 使配置檔案生效。

將環境變數寫入對應的tomcat的catalna.sh中，預設的tomcat不用寫入，同理埠也是不用修改

# OS specific support.  $var _must_ be set to either true or false.
export CATALINA_BASE=$CATALINA_1_BASE
export CATALINA_HOME=$CATALINA_1_HOME

# OS specific support.  $var _must_ be set to either true or false.
export CATALINA_BASE=$CATALINA_2_BASE
export CATALINA_HOME=$CATALINA_2_HOME
 

修改每個tomcat埠啟動即可。