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Editor to share with you how to install Tomcat 9 in CentOS7, I believe most people do not know much about it, so share this article for your reference, I hope you can learn a lot after reading this article, let's go to know it!

Tomcat doesn't explain much, just drive.

1. Download the installation package on the official website

Install tomcat to the / usr/local/tomcat/ directory

Cd / usr/local/mkdir tomcat/cd tomcat/wget http://archive.apache.org/dist/tomcat/tomcat-9/v9.0.0.M18/bin/apache-tomcat-9.0.0.M18.tar.gz

two。 Extract and execute the following command

Tar-zxvf apache-tomcat-9.0.0.M18.tar.gz

3. Rename directory

Mv apache-tomcat-9.0.0.M18 tomcat_8080 (/ path (destination path))

4. Configure self-startup, change to the bin directory of Tomcat to execute vi setenv.sh, and press I to enter edit mode, copy and paste the following code

# add tomcat pidCATALINA_PID= "$CATALINA_BASE/tomcat.pid" # add java optsJAVA_OPTS= "- server-XX:PermSize=256M-XX:MaxPermSize=1024m-Xms512M-Xmx1024M-XX:MaxNewSize=256m"

Then press the ESC key, press shift+: (":" appears in the lower left corner), and then type wq to save exit.

Finally, execute chmod + x setenv.sh to ensure that the file setenv.sh is executable.

5. Configure service to execute cd / usr/lib/systemd/system to change to directory and execute vi tomcat.service (you can also vi / usr/lib/systemd/system/tomcat.service directly)

Copy and paste the following code (be sure to replace the Tomcat path / usr/local/apache-tomcat-9.0.0.M18 in lines 6 and 7 with your own absolute Tomcat path)

[Unit] Description=TomcatAfter=syslog.target network.target remote-fs.target nss- lookup.target [service] Type=forkingPIDFile=/usr/local/tomcat/tomcat_8080/tomcat.pid # set to its own path ExecStart=/usr/local/tomcat/tomcat_8080/bin/startup.sh # set its own path ExecReload=/bin/kill-s HUP $MAINPIDExecStop=/bin/kill-s QUIT $MAINPIDPrivateTmp= true [install] WantedBy=multi-user.target

From boot to boot

/ / configure boot systemctl enable tomcat// to start tomcatsystemctl start tomcat// stop tomcatsystemctl stop tomcat// and restart tomcatsystemctl restart tomcat

When the configuration is complete, it is recommended to restart the server, that is, enter the command reboot (or sudo reboot) to enter your server address + port 8080 in the browser.

(for example, 192.168.1.161purl 8080), if you see a kitten, please check that all of the above steps are performed correctly.

Configure environment variables

Vi / etc/profile

Increase

Export CATALINA_HOME=/usr/local/tomcat/tomcat_8080export PATH=$TOMCAT_HOME/bin:$PATH

If you can't access it, it could be because of the firewall.

Systemctl stop firewalld.service turn off the firewall cd / usr/local/tomcat/tomcat_8080/bin and enter the tomcat root directory. / startup.sh enable tomcat

6. Modify the port and change to the Tomcat conf directory

Cd / usr/local/tomcat/tomcat_8080/conf// input instruction to open the file vi server.xml// input / 8080 and enter to search for the 8080 string, find the following two places

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