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I new in the ubuntu and i install java in this using oracle VM virtual box. I download jdk after what doing for java install and than after install apache tomcat 7. please help me both software install in ubuntu. Thanks .

Iren Patel
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1 Answers1

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1- Install Sun JRE 7

Download the sun jre 7 tar file

Extract the tar file: 

tar -xvzf jre-7u4-linux-x64.tar.gz

Move extracted folder to this location: 

sudo mv jre1.7.0_04 /usr/lib/jvm/

Install new java source in system: 

sudo update-alternatives --install /usr/bin/java java /usr/lib/jvm/jre1.7.0_04/bin/java 1

Choose default java: 

sudo update-alternatives --config java

java version test: 

java -version

Verify the symlinks all point to the new java location: 

ls -la /etc/alternatives/java*

2- Install Sun JDK 7

Download the sun jdk 7 tar file

Extract the tar file:

tar -xvzf jdk-7u4-linux-x64.tar.gz

Move extracted folder to this location: 

sudo mv jdk1.7.0_04 /usr/lib/jvm/

Install new java source in system: 

sudo update-alternatives --install /usr/bin/javac javac /usr/lib/jvm/jdk1.7.0_04/bin/javac 

sudo update-alternatives --install /usr/bin/java java /usr/lib/jvm/jdk1.7.0_04/bin/java 1

sudo update-alternatives --install /usr/bin/javaws javaws /usr/lib/jvm/jdk1.7.0_04/bin/javaws 1

sudo update-alternatives --install /usr/bin/jar jar /usr/lib/jvm/jdk1.7.0_04/bin/jar 1

Choose default java: 

sudo update-alternatives --config javac
sudo update-alternatives --config java
sudo update-alternatives --config javaws

java version test: 

java -version

Verify the symlinks all point to the new java location: 

ls -la /etc/alternatives/java*

3- Install Tomcat

to install tomcat easily

sudo apt-get install tomcat7

4- Autostart Tomcat when booting

Create the init script in /etc/init.d/tomcat7 

#!/bin/bash

PATH=/sbin:/bin:/usr/sbin:/usr/bin

start() {
 sh /usr/share/tomcat7/bin/startup.sh
}

stop() {
 sh /usr/share/tomcat7/bin/shutdown.sh
}

case $1 in
  start|stop) $1;;
  restart) stop; start;;
  *) echo "Run as $0 <start|stop|restart>"; exit 1;;
esac

Change its permissions and add the correct symlinks automatically:

chmod 755 /etc/init.d/tomcat7
update-rc.d tomcat7 defaults

And from now on it will be automatically started and shut down upon entering the appropriate runlevels.

Maythux
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