Amazon Linux环境下Tomcat版本查询、服务启动及开机自启配置咨询

Hey there! Let's walk through your Tomcat questions step by step, since you're used to the httpd service workflow:

1. Start Tomcat Using service Command (Like httpd) #

When you install Tomcat 8.5 via amazon-linux-extras, the package sets up a system service automatically. You can use the same service syntax you know for httpd:

• Start Tomcat: sudo service tomcat start
• Stop Tomcat: sudo service tomcat stop
• Restart Tomcat: sudo service tomcat restart
• Check running status: sudo service tomcat status

If the tomcat service isn't found, double-check that your installation completed without errors. You can verify the service exists with this command:
systemctl list-unit-files | grep tomcat

2. Set Tomcat to Auto-Start on Instance Reboot (Like chkconfig httpd on) #

Amazon Linux uses systemd by default now, but it still supports legacy chkconfig commands. Here are both options:

Option 1: Systemd (Recommended) #

Use systemctl to enable auto-start for Tomcat:
sudo systemctl enable tomcat

Confirm the setting took effect with:
systemctl is-enabled tomcat

Option 2: Legacy chkconfig #

If you prefer the chkconfig workflow you're used to, run:
sudo chkconfig tomcat on

Verify the auto-start status with:
chkconfig --list tomcat

3. Check Tomcat Version #

The simplest way is to use Tomcat's built-in version script. By default, this lives in /usr/share/tomcat/bin:

• Run the script directly: sudo /usr/share/tomcat/bin/version.sh
• Or navigate to the bin folder first:

  cd /usr/share/tomcat/bin
  sudo ./version.sh
  

You'll get detailed output including the exact Tomcat version, your JVM version, and system environment info.

内容的提问来源于stack exchange，提问作者Subramanian Lakshmanan