Tomcat多实例部署及配置原理

1、关闭防火墙，将安装 tomcat 所需软件包传到/opt目录下

jdk-8u201-linux-x64.rpm
apache-tomcat-9.0.16.tar.gz
 
systemctl stop firewalld
systemctl disable firewalld
setenforce 0

2、安装jdk

cd /opt
rpm -qpl jdk-8u201-linux-x64.rpm
rpm -ivh jdk-8u201-linux-x64.rpm
java -version

3、安装 tomcat

cd /opt
tar zxvf apache-tomcat-9.0.16.tar.gz
mkdir /usr/local/tomcat
mv apache-tomcat-9.0.16 /usr/local/tomcat/tomcat1
cp -a /usr/local/tomcat/tomcat1 /usr/local/tomcat/tomcat2

4、配置 tomcat 环境变量

vim /etc/profile.d/tomcat.sh
#tomcat1
export catalina_home1=/usr/local/tomcat/tomcat1
export catalina_base1=/usr/local/tomcat/tomcat1
export tomcat_home1=/usr/local/tomcat/tomcat1
 
#tomcat2
export catalina_home2=/usr/local/tomcat/tomcat2
export catalina_base2=/usr/local/tomcat/tomcat2
export tomcat_home2=/usr/local/tomcat/tomcat2
 
 
source /etc/profile.d/tomcat.sh

5、修改 tomcat2 中的 server.xml 文件，要求各 tomcat 实例配置不能有重复的端口号

vim /usr/local/tomcat/tomcat2/conf/server.xml
<server port="8006" shutdown="shutdown">      #22行，修改server prot，默认为8005 -> 修改为8006
<connector port="8081" protocol="http/1.1"       #69行，修改connector port，http/1.1  默认为8080 -> 修改为8081
<connector port="8010" protocol="ajp/1.3" redirectport="8443" />  #116行，修改connector port ajp/1.3，默认为8009 -> 修改为8010

6、修改各 tomcat 实例中的 startup.sh 和 shutdown.sh 文件，添加 tomcat 环境变量

vim /usr/local/tomcat/tomcat1/bin/startup.sh
# -----------------------------------------------------------------------------
# start script for the catalina server
# -----------------------------------------------------------------------------
##添加以下内容
export catalina_base=$catalina_base1
export catalina_home=$catalina_home1
export tomcat_home=$tomcat_home1
 
 
vim /usr/local/tomcat/tomcat1/bin/shutdown.sh
# -----------------------------------------------------------------------------
# stop script for the catalina server
# -----------------------------------------------------------------------------
export catalina_base=$catalina_base1
export catalina_home=$catalina_home1
export tomcat_home=$tomcat_home1
 
vim /usr/local/tomcat/tomcat2/bin/startup.sh
# -----------------------------------------------------------------------------
# start script for the catalina server
# -----------------------------------------------------------------------------
export catalina_base=$catalina_base2
export catalina_home=$catalina_home2
export tomcat_home=$tomcat_home2
 
vim /usr/local/tomcat/tomcat2/bin/shutdown.sh
# -----------------------------------------------------------------------------
# stop script for the catalina server
# -----------------------------------------------------------------------------
export catalina_base=$catalina_base2
export catalina_home=$catalina_home2
export tomcat_home=$tomcat_home2

7、启动各 tomcat 中的 /bin/startup.sh

/usr/local/tomcat/tomcat1/bin/startup.sh
/usr/local/tomcat/tomcat2/bin/startup.sh
 
netstat -natp | grep java

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