In order to meet business needs, we need to build multiple Tomcat servers in the same Centos server. Let ’s take a look
1. Install JDK
https://blog.csdn.net/qq_40065776/article/details/101000101
https://blog.csdn.net/qq_40065776/article/details/101000175
The above two steps are very simple, you can refer to my two blogs, I will not repeat them here
3. Open port 8080, 8081
Refer to my blog: Ctntos7 firewall command study notes
https://blog.csdn.net/qq_40065776/article/details/96313045
We mainly use:
Open 8080, 8081 permanently
firewall-cmd --zone=public --add-port=8080/tcp --permanent
firewall-cmd --zone=public --add-port=8081/tcp --permanent
Restart the firewall
firewall-cmd --reload
If we are using the cloud Ali cloud server, we also need to log Ali cloud official website , enter the console, change the firewall settings, open 8080,80801 port
4. Make a copy of Tomcat
cp ./apache-tomcat-8.5.34/ ./apache-tomcat2-8.5.34/ -r
We must add -r, because the decompressed Tomcat itself is a folder, and there are still folders under this directory
Parameter Description:
-a: This option is usually used when copying a directory. It retains links, file attributes, and copies all contents under the directory. Its role is equal to the dpR parameter combination.
-d: Keep the link when copying. The link mentioned here is equivalent to a shortcut in Windows.
-f: Overwrite the existing target file without giving a prompt.
-i: Contrary to the -f option, a prompt is given before overwriting the target file, asking the user to confirm whether to overwrite, the target file will be overwritten when answering "y".
-p: In addition to copying the contents of the file, the modification time and access rights are also copied to the new file.
-r: If the given source file is a directory file, all subdirectories and files in the directory will be copied at this time.
-l: Do not copy files, just generate link files.
5. Modify the environment variables (this step is not required to configure only one Tomcat)
vim /etc/profile
As shown in the figure:
add the following content at the end of the article:
# tomcat1
export CATALINA_BASE=/usr/local/apache-tomcat-8.5.34
export CATALINA_HOME=/usr/local/apache-tomcat-8.5.34
export TOMCAT_HOME=/usr/local/apache-tomcat-8.5.34
# tomcat2
export CATALINA_2_BASE=/usr/local/apache-tomcat2-8.5.34
export CATALINA_2_HOME=/usr/local/apache-tomcat2-8.5.34
export TOMCAT_2_HOME=/usr/local/apache-tomcat2-8.5.34
Multiple Tomcats and so on
Save and exit:
ESC + CTRL + :
wq 回车
Enable / etc / profile configuration
source /etc/profile
6. Modify the second (or third) Tomcat's /bin/catalina.sh
Add the following content after # OS specific support. $ Var must be set to either true or false.
export CATALINA_BASE=$CATALINA_2_BASE
export CATALINA_HOME=$CATALINA_2_HOME
That is, specify the parameters configured in the environment variables
7. Modify the service port number of the second (or third) /conf/server.xml
A total of three areas need to be modified:
(1)
<Server port="8005" shutdown="SHUTDOWN">
change into:
<Server port="9005" shutdown="SHUTDOWN">
（2）
<Connector port="8080" protocol="HTTP/1.1" connectionTimeout="20000" redirectPort="8443" />
change into:
<Connector port="8080" protocol="HTTP/1.1" connectionTimeout="20000" redirectPort="8443" />
（3）
<Connector port="8009" protocol="AJP/1.3" redirectPort="8443" />
change into:
<Connector port="9009" protocol="AJP/1.3" redirectPort="8443" />
You do n’t have to agree with the port I changed, just use a different port from the first Tomcat
8. Start two Tomcat servers
Start the first one:
./startup.sh
Start the second one:
At this time, using the first startup method can not start normally, execute
chmod +x *.sh
Execute again
sh startup.sh
Successful start
9. Access to the server
We visit in the browser
ip:8080
ip:8081
Two Tomcat start pages appeared, proving that we have successfully built multiple Tomcat servers
If you find deficiencies in reading, please leave a message! ! !
