How To Install Java And Tomcat On Ubuntu Gnome 16.045 min read
Ubuntu Gnome is an open-source software. It can be used various purposes such as server and desktop version. I have to configure Java (8.0.144) and Tomcat (8.0.46) on your desktop version. If you can use Apache Tomcat on your Gnome desktop then follow thus step by step my guides.
★ How To Install Java And Tomcat on Windows
★ How To Configure Static IP address On Ubuntu 18.04
At first download Java (8.0.144) and Apache Tomcat (8.0.46)
Configure Java (8.0.144) on your Gnome desktop
Step #01: Create some directory for install Java.
root@tech-ubuntu:~# mkdir -p /home/local/app/java/jdk/
Then upload all java downloaded file on your jdk directory with version name.
Step #02: Select update alternative path for installation Java and Tomcat.
root@tech-ubuntu:~# update-alternatives --install "/usr/bin/javac" "javac" "/home/local/app/java/jdk/8.0.144/bin/javac" 1 root@tech-ubuntu:~# update-alternatives --install "/usr/bin/java" "java" "/home/local/app/java/jdk/8.0.144/bin/java" 1 root@tech-ubuntu:~# update-alternatives --set "javac" "/home/local/app/java/jdk/8.0.144/bin/javac" root@tech-ubuntu:~# update-alternatives --set "java" "/home/local/app/java/jdk/8.0.144/bin/java"
Step #03: Create Java Home profile. Open profile file with any editor vi /etc/profile and then insert below line.
JRE_HOME=/home/local/app/java/jdk/8.0.144 PATH=$PATH:$JRE_HOME/bin export JRE_HOME export PATH
Configure Tomcat (8.0.46) on your Gnome desktop
Step #04: Again create tomcat directory
root@tech-ubuntu:~# mkdir -p /home/local/app/tomcat/
Then upload all downloaded file into tomcat folder with version name.
Step #05: Edit catalina.sh file for setup heap memory on your tomcat bin directory.
root@tech-ubuntu:~# vim /home/local/app/tomcat/8.0.46/bin/catalina.sh
Then insert below line
JAVA_OPTS="-Dfile.encoding=UTF-8 -server -Xms1024m -Xmx2048m -XX:PermSize=64m -XX:MaxPermSize=256m -Djava.awt.headless=true -XX:+UseParallelGC -XX:MaxGCPauseMillis=100"
Sate and exit.
Step #06: Now create Tomcat service file for start and stop.
Open vim /etc/init.d/tomcat and insert all below lines on your tomcat file.
#!/bin/bash ### BEGIN INIT INFO # Provides:tomcat8 # Required-Start: $network # Required-Stop: $network # Default-Start: 2 3 4 5 # Default-Stop: 0 1 6 # Short-Description: Start/Stop Tomcat server ### END INIT INFO JAVA_HOME=/home/local/app/java/jdk/8.0.144 export JAVA_HOME PATH=$JAVA_HOME/bin:$PATH export PATH CATALINA_HOME=/home/local/app/tomcat/8.0.46 case $1 in start) sh $CATALINA_HOME/bin/startup.sh ;; stop) sh $CATALINA_HOME/bin/shutdown.sh ;; restart) sh $CATALINA_HOME/bin/shutdown.sh sh $CATALINA_HOME/bin/startup.sh ;; esac exit 0
Step #07: Then create permission for execute Java and start Tomcat.
root@tech-ubuntu:~# chmod 755 /etc/init.d/tomcat
root@tech-ubuntu:~# chmod -R 755 /home/local/app/
root@tech-ubuntu:~# /etc/init.d/tomcat start
Finally goto your browser and type http://localhost:8080/ press enter or http://Your_server_ip:8080/
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