Java Development Environment on Ubutnu 18.04
How to install Oracle 11g XE on Ubuntu
Ubuntu is not a Linux distribution officially supported by Oracle.
You can install Oracle 11g XE on Ubuntu with a few tricks.
Origin: http://meandmyubuntulinux.blogspot.kr/2012/05/installing-oracle-11g-r2-express.html
Visit https://www.oracle.com/database/technologies/xe-prior-release-downloads.html. For 64-bit systems, choose Oracle Database Express Edition 11g Release 2 for Linux x64. You need to log in to download the file. --Sign up if you are not a member of the Oracle website-- When you log in to the site, the download begins. After downloading, go to the directory where the file exists and execute the following command.
unzip oracle-xe-11.2.0-1.0.x86_64.rpm.zip
sudo apt install alien unixodbc
sudo apt install libaio1
- sudo apt install libaio1 fails in Ubuntu 24.04
-
Ubuntu 24.04 does not support libaio1.
Install libaio-dev instead.sudo apt install libaio-dev
Oracle 11g XE still expecting libaio.so.1, so create the following symbolic link:sudo ln -s /usr/lib/x86_64-linux-gnu/libaio.so.1t64 /usr/lib/x86_64-linux-gnu/libaio.so.1
cd Disk1 sudo alien --scripts -d oracle-xe-11.2.0-1.0.x86_64.rpm
Create a /sbin/chkconfig file.
sudo nano /sbin/chkconfig
Copy and Paste the following into the file.
#!/bin/bash # Oracle 11gR2 XE installer chkconfig hack for Ubuntu file=/etc/init.d/oracle-xe if [[ ! `tail -n1 $file | grep INIT` ]]; then echo >> $file echo '### BEGIN INIT INFO' >> $file echo '# Provides: OracleXE' >> $file echo '# Required-Start: $remote_fs $syslog' >> $file echo '# Required-Stop: $remote_fs $syslog' >> $file echo '# Default-Start: 2 3 4 5' >> $file echo '# Default-Stop: 0 1 6' >> $file echo '# Short-Description: Oracle 11g Express Edition' >> $file echo '### END INIT INFO' >> $file fi update-rc.d oracle-xe defaults 80 01
Save the above file and provide appropriate execute privilege.
sudo chmod 755 /sbin/chkconfig
Set the Kernel parameters.
sudo nano /etc/sysctl.d/60-oracle.conf
Copy the following. Paste it into the file.
# Oracle 11g XE kernel parameters fs.file-max=6815744 net.ipv4.ip_local_port_range=9000 65000 kernel.sem=250 32000 100 128 kernel.shmmax=536870912
Check the swap memory.
free -m
total used free shared buffers cached Mem: 3942 3809 133 947 50 1571 -/+ buffers/cache: 2186 1756 Swap: 4083 378 3705
Unlike the above, if Swap doesn't exceed 4000, do the following.
sudo ln -s /usr/bin/awk /bin/awk sudo mkdir /var/lock/subsys sudo touch /var/lock/subsys/listener
Verify the kernel parameters.
sudo cat /etc/sysctl.d/60-oracle.conf
Load kernel parameters.
sudo service procps restart
Verify.
(In my case, it came out differently from the set value, but I was able to complete the installation)
sudo sysctl -q fs.file-max
Go to the Disk1 directory and run the following commands:
sudo dpkg --install oracle-xe_11.2.0-2_amd64.deb sudo /etc/init.d/oracle-xe configure
- Specify the HTTP port that will be used for Oracle Application Express: Set a value other than 8080, like 9090
- Specify a port the database listener: (just hit Enter)
- Set passwords for administrator accounts SYS and SYSTEM: Password for Oracle administrators, you specified
- Do you want Oracle Database 11g Express Edition to be started on boot: (just hit Enter)
Oracle Database 11g Express Edition Configuration ------------------------------------------------- This will configure on-boot properties of Oracle Database 11g Express Edition. The following questions will determine whether the database should be starting upon system boot, the ports it will use, and the passwords that will be used for database accounts. Press Enter to accept the defaults. Ctrl-C will abort. Specify the HTTP port that will be used for Oracle Application Express [8080]:9090 Specify a port that will be used for the database listener [1521]: Specify a password to be used for database accounts. Note that the same password will be used for SYS and SYSTEM. Oracle recommends the use of different passwords for each database account. This can be done after initial configuration: ********** Confirm the password: ********** Do you want Oracle Database 11g Express Edition to be started on boot (y/n) [y]: Starting Oracle Net Listener...Done Configuring database...Done Starting Oracle Database 11g Express Edition instance...Done Installation completed successfully.
Set up the environmental variables.
nano ~/.bashrc
Add the following lines to your .bashrc:
export ORACLE_HOME=/u01/app/oracle/product/11.2.0/xe export ORACLE_SID=XE export NLS_LANG=`$ORACLE_HOME/bin/nls_lang.sh` export ORACLE_BASE=/u01/app/oracle export LD_LIBRARY_PATH=$ORACLE_HOME/lib:$LD_LIBRARY_PATH export PATH=$ORACLE_HOME/bin:$PATH
Execute the following command to load the changes:
source ~/.bashrc
Start the Oracle.
sudo service oracle-xe start
SCOTT Account
Log in as an SYS account and run the SCOTT account schema script.
sqlplus sys as sysdba SQL*Plus: Release 11.2.0.2.0 Production on 월 6월 29 12:04:33 2015 Copyright (c) 1982, 2011, Oracle. All rights reserved. Enter password: ********** Connected to: Oracle Database 11g Express Edition Release 11.2.0.2.0 - 64bit Production SQL> @/u01/app/oracle/product/11.2.0/xe/rdbms/admin/utlsampl.sql
MariaDB Install
sudo apt update sudo apt install mariadb-server
If the installation is completed without errors, run the following command to set the root password. (Press the Enter key for the current password)
sudo mysql_secure_installation
Set the root user to use the mysql_native_password plugin.
sudo mysql use mysql update user set plugin='mysql_native_password' where user='root'; flush privileges; exit
Restart MariaDB.
sudo service mariadb restart
Java Install
sudo apt install default-jdk
Maven Install
sudo apt install maven
Installing the Oracle JDBC driver in local repository
The Maven repository does not provide the Oracle JDBC driver. Therefore, you need to install the Oracle JDBC driver in your local repository and set the dependency on pom.xml.
Run the following.
cd /u01/app/oracle/product/11.2.0/xe/jdbc/lib mvn install:install-file \ -Dfile=ojdbc6.jar \ -DgroupId=com.oracle \ -DartifactId=ojdbc6 \ -Dversion=11.2.0.2.0 \ -Dpackaging=jar
The following shows how to add Oracle JDBC driver to pom.xml according to the information stored in the local repository.
<dependency> <groupId>com.oracle</groupId> <artifactId>ojdbc6</artifactId> <version>11.2.0.2.0</version> </dependency>
Git Install
sudo apt install git
git config --global user.name "John Doe" git config --global user.email johndoe@gmail.org
git config --global --list
Tomcat Install
sudo apt install tomcat9
Tomcat Restart
sudo service tomcat9 restart
Changing the Tomcat Root Application
Log in to the root account and run the following.
sudo nano /etc/tomcat9/Catalina/localhost/ROOT.xml
If your project is a maven project and /home/kim/javaschool is the root directory, edit ROOT.xml as shown below.
<?xml version="1.0" encoding="UTF-8"?> <Context docBase="/home/kim/javaschool/src/main/webapp" reloadable="true"> </Context>
After installing Ubuntu 18.04, specify the root account password with the following command.
sudo passwd
Run su and enter the root account password.
su Password:
Tomcat logs
Log in to the root account and run the following command:
tail -f /var/lib/tomcat9/logs/localhost.2019-10-05.log
tail -f /var/lib/tomcat9/logs/catalina.2019-10-05.log
Eclipse Install
Download the installer from https://www.eclipse.org/downloads/ and run the following commands in sequence.
cd Downloads tar -xvf eclipse-inst-linux64.tar.gz cd eclipse-installer/ ./eclipse-inst
In the installation selection screen, select Eclipse IDE for Enterprise Java Developers.
Create eclipse.desktop
cd /usr/share/applications sudo nano eclipse.desktop
Edit eclipse.desktop file as follows.
[Desktop Entry] Name=Eclipse Type=Application Exec=/home/kim/eclipse/jee-2019-12/eclipse/eclipse Terminal=false Icon=/home/kim/eclipse/jee-2019-12/eclipse/icon.xpm Comment=Integrated Development Environment NoDisplay=false Categories=Development;IDE Name[en]=eclipse.desktop
Customize the paths for Exec and Icon.
Search for eclipse, run it, and pin it to the launcher.