Installing Tomcat on MacOS

tomcat-macos-install.md

Install Tomcat (Source)

Prerequisite: Java

UPDATE: It seems the IntelliJ bundled java is suffient. So skip first two steps and don't mind java -version and echo $JAVA_HOME are not working.

1. Check java -version. Tomcat 9.x requires Java 8 or later.

   java version "13.0.2" 2020-01-14

   Java(TM) SE Runtime Environment (build 13.0.2+8)

   • If you don't have: Download JDK from Here > Download JDK > jdk-13.0.2_osx-x64_bin.dmg (~ 173MB)

2. Make sure echo $JAVA_HOME is set.

   /Library/Java/JavaVirtualMachines/jdk1.8.0_162.jdk/Contents/Home

   • If it's not set:
     1. Find Java Home (= the dir that contains Home/bin/) via /usr/libexec/java_home -verbose.
        • Probably: /Library/Java/JavaVirtualMachines/jdk-13.0.2.jdk/Contents/Home
     2. Add export JAVA_HOME=/Library/Java/JavaVirtualMachines/jdk-13.0.2.jdk/Contents/Home to terminal profile (~/.zshrc or ~/.bash_profile)

Installing Tomcat 9

1. Download a binary distribution of the core module: apache-tomcat-9.0.13 from here
   • I picked Binary Distributions > Core > tar.gz one.
2. unarchiving the archive will create a new folder structure in your Downloads folder: ~/Downloads/apache-tomcat-9.0.13
3. sudo mkdir -p /usr/local
   • -p = --parents = no error if existing, make parent directories as needed
4. sudo mv ~/Downloads/apache-tomcat-9.xx /usr/local
5. To make it easy to replace this release with future releases, we are going to create a symbolic link that we are going to use when referring to Tomcat:
   • sudo rm -f /Library/Tomcat (First, remove old link, you might have from installing a previous version)
   • sudo ln -s /usr/local/apache-tomcat-9.xx /Library/Tomcat
6. sudo chown -R <your_username> /Library/Tomcat
7. sudo chmod +x /Library/Tomcat/bin/*.sh

Start Tomcat 9

• start and stop like so:

  • /Library/Tomcat/bin/startup.sh
  • /Library/Tomcat/bin/shutdown.sh

• After starting Tomcat, check out the default page at http://localhost:8080. It shows a lot of things, including a yellow cat.