How to install Java JDK and JRE on CentOS server
Reference Server
In this tutorial we will learn to install Java JDK and JRE on centOS server.
Prerequisite
It is assumed that you have wget installed.
Use the following command in the terminal to install wget.
yum install -y wget
Use sudo if you don't have the permissions.
Step 1 Download JRE
In this tutorial we will be installing JRE (Java Runtime Environment) version 7.
Open terminal and login to your server using ssh. Now cd to a directory where you want to download the files.
Lets say we have a Downloads directory and we want to download JRE in that folder.
Type the following command in the terminal to download JRE version 7.
wget --no-cookies --no-check-certificate --header "Cookie: gpw_e24=http%3A%2F%2Fwww.oracle.com%2F; oraclelicense=accept-securebackup-cookie" "http://download.oracle.com/otn-pub/java/jdk/7u79-b15/jre-7u79-linux-x64.rpm"
Output
[~]# cd Downloads
[Downloads]# wget --no-cookies --no-check-certificate --header "Cookie: gpw_e24=http%3A%2F%2Fwww.oracle.com%2F; oraclelicense=accept-securebackup-cookie" "http://download.oracle.com/otn-pub/java/jdk/7u79-b15/jre-7u79-linux-x64.rpm"
--2016-12-12 05:07:20-- http://download.oracle.com/otn-pub/java/jdk/7u79-b15/jre-7u79-linux-x64.rpm
Resolving download.oracle.com (download.oracle.com)... 96.17.72.58, 96.17.72.66
Connecting to download.oracle.com (download.oracle.com)|96.17.72.58|:80... connected.
HTTP request sent, awaiting response... 302 Moved Temporarily
Location: https://edelivery.oracle.com/otn-pub/java/jdk/7u79-b15/jre-7u79-linux-x64.rpm [following]
--2016-12-12 05:07:21-- https://edelivery.oracle.com/otn-pub/java/jdk/7u79-b15/jre-7u79-linux-x64.rpm
Resolving edelivery.oracle.com (edelivery.oracle.com)... 2600:1413:1:500:8300::2d3e, 2600:1413:1:500:8800::2d3e, 23.67.2.41
Connecting to edelivery.oracle.com (edelivery.oracle.com)|2600:1413:1:500:8300::2d3e|:443... connected.
HTTP request sent, awaiting response... 302 Moved Temporarily
Location: http://download.oracle.com/otn-pub/java/jdk/7u79-b15/jre-7u79-linux-x64.rpm?AuthParam=1490850561_4973818e7b56fb9dd787998708cf1ae2 [following]
--2016-12-12 05:07:21-- http://download.oracle.com/otn-pub/java/jdk/7u79-b15/jre-7u79-linux-x64.rpm?AuthParam=1490850561_4973818e7b56fb9dd787998708cf1ae2
Connecting to download.oracle.com (download.oracle.com)|96.17.72.58|:80... connected.
HTTP request sent, awaiting response... 200 OK
Length: 33706160 (32M) [application/x-redhat-package-manager]
Saving to: ‘jre-7u79-linux-x64.rpm’
100%[==================================================================================================>] 33,706,160 3.52MB/s in 9.1s
2016-12-12 05:07:30 (3.52 MB/s) - ‘jre-7u79-linux-x64.rpm’ saved [33706160/33706160]
[Downloads]# ls -la
total 1028248
drwxr-xr-x 2 root root 4096 Apr 13 05:07 .
dr-xr-x---. 6 root root 4096 Apr 13 05:07 ..
-rw-r--r-- 1 root root 33706160 Apr 13 2015 jre-7u79-linux-x64.rpm
Step 2 Install JRE
Use the following command in the terminal to install JRE.
yum install jre-7u79-linux-x64.rpm
use sudo if you don't have the permissions.
Output
[Downloads]# sudo yum install jre-7u79-linux-x64.rpm
Loaded plugins: fastestmirror
Examining jre-7u79-linux-x64.rpm: jre-1.7.0_79-fcs.x86_64
Marking jre-7u79-linux-x64.rpm to be installed
Resolving Dependencies
--> Running transaction check
---> Package jre.x86_64 0:1.7.0_79-fcs will be installed
--> Finished Dependency Resolution
Dependencies Resolved
============================================================================================================================================
Package Arch Version Repository Size
============================================================================================================================================
Installing:
jre x86_64 1.7.0_79-fcs /jre-7u79-linux-x64 81 M
Transaction Summary
============================================================================================================================================
Install 1 Package
Total size: 81 M
Installed size: 81 M
Is this ok [y/d/N]: y
Downloading packages:
Running transaction check
Running transaction test
Transaction test succeeded
Running transaction
Installing : jre-1.7.0_79-fcs.x86_64 1/1
Unpacking JAR files...
rt.jar...
jsse.jar...
charsets.jar...
localedata.jar...
jfxrt.jar...
Verifying : jre-1.7.0_79-fcs.x86_64 1/1
Installed:
jre.x86_64 0:1.7.0_79-fcs
Complete!
[Downloads]#
Step 3 Download JDK
In this tutorial we will be downloading and installing JDK (Java Development Kit) version 7.
Use the following command to download JDK version 7.
wget --no-cookies --no-check-certificate --header "Cookie: gpw_e24=http%3A%2F%2Fwww.oracle.com%2F; oraclelicense=accept-securebackup-cookie" "http://download.oracle.com/otn-pub/java/jdk/7u79-b15/jdk-7u79-linux-x64.rpm"
Output
[Downloads]# wget --no-cookies --no-check-certificate --header "Cookie: gpw_e24=http%3A%2F%2Fwww.oracle.com%2F; oraclelicense=accept-securebackup-cookie" "http://download.oracle.com/otn-pub/java/jdk/7u79-b15/jdk-7u79-linux-x64.rpm"
--2016-12-12 05:14:04-- http://download.oracle.com/otn-pub/java/jdk/7u79-b15/jdk-7u79-linux-x64.rpm
Resolving download.oracle.com (download.oracle.com)... 96.17.72.66, 96.17.72.58
Connecting to download.oracle.com (download.oracle.com)|96.17.72.66|:80... connected.
HTTP request sent, awaiting response... 302 Moved Temporarily
Location: https://edelivery.oracle.com/otn-pub/java/jdk/7u79-b15/jdk-7u79-linux-x64.rpm [following]
--2016-12-12 05:14:04-- https://edelivery.oracle.com/otn-pub/java/jdk/7u79-b15/jdk-7u79-linux-x64.rpm
Resolving edelivery.oracle.com (edelivery.oracle.com)... 2600:1413:1:500:8800::2d3e, 2600:1413:1:500:8300::2d3e, 23.67.2.41
Connecting to edelivery.oracle.com (edelivery.oracle.com)|2600:1413:1:500:8800::2d3e|:443... connected.
HTTP request sent, awaiting response... 302 Moved Temporarily
Location: http://download.oracle.com/otn-pub/java/jdk/7u79-b15/jdk-7u79-linux-x64.rpm?AuthParam=1490850965_eb153a76b759c1c9d185ee439e9de862 [following]
--2016-12-12 05:14:05-- http://download.oracle.com/otn-pub/java/jdk/7u79-b15/jdk-7u79-linux-x64.rpm?AuthParam=1490850965_eb153a76b759c1c9d185ee439e9de862
Connecting to download.oracle.com (download.oracle.com)|96.17.72.66|:80... connected.
HTTP request sent, awaiting response... 200 OK
Length: 138082565 (132M) [application/x-redhat-package-manager]
Saving to: ‘jdk-7u79-linux-x64.rpm’
100%[==================================================================================================>] 138,082,565 3.97MB/s in 35s
2016-12-12 05:14:41 (3.72 MB/s) - ‘jdk-7u79-linux-x64.rpm’ saved [138082565/138082565]
[Downloads]#
Step 4 Install JDK
To install JDK use the following command in the terminal.
yum install jdk-7u79-linux-x64.rpm
Use sudo if you don't have the permissions.
Output
[Downloads]# sudo yum install jdk-7u79-linux-x64.rpm
Loaded plugins: fastestmirror
Examining jdk-7u79-linux-x64.rpm: 2000:jdk-1.7.0_79-fcs.x86_64
Marking jdk-7u79-linux-x64.rpm to be installed
Resolving Dependencies
--> Running transaction check
---> Package jdk.x86_64 2000:1.7.0_79-fcs will be installed
--> Finished Dependency Resolution
Dependencies Resolved
============================================================================================================================================
Package Arch Version Repository Size
============================================================================================================================================
Installing:
jdk x86_64 2000:1.7.0_79-fcs /jdk-7u79-linux-x64 209 M
Transaction Summary
============================================================================================================================================
Install 1 Package
Total size: 209 M
Installed size: 209 M
Is this ok [y/d/N]: y
Downloading packages:
Running transaction check
Running transaction test
Transaction test succeeded
Running transaction
Installing : 2000:jdk-1.7.0_79-fcs.x86_64 1/1
Unpacking JAR files...
rt.jar...
jsse.jar...
charsets.jar...
tools.jar...
localedata.jar...
jfxrt.jar...
Verifying : 2000:jdk-1.7.0_79-fcs.x86_64 1/1
Installed:
jdk.x86_64 2000:1.7.0_79-fcs
Complete!
[Downloads]#
Step 5 Set the environment
Now, open the .bash_profile file and set the JAVA_HOME and JRE_HOME.
[Downloads]# cd
[~]# ls -la
total 96
dr-xr-x---. 8 root root 4096 Dec 31 20:15 .
drwxr-xr-x 18 root root 4096 Dec 29 06:15 ..
-rw-------. 1 root root 11146 Dec 31 20:39 .bash_history
-rw-r--r--. 1 root root 18 Dec 29 2013 .bash_logout
-rw-r--r-- 1 root root 429 Dec 31 10:38 .bash_profile
Open the .bash_profile file using vi or vim.
[~]# vi .bash_profile
And now add the following lines. Press i key to switch into INSERT mode.
export JAVA_HOME=/usr/java/jdk1.7.0_79
export JRE_HOME=/usr/java/jdk.7.0_79/jre
PATH=$HOME/bin:$JAVA_HOME/bin:$JRE_HOME:$PATH
Press Esc key to come out of the INSERT mode. Now type :wq to save the changes and exit.
Now, load the changes using source command.
[~]# source .bash_profile
All set, now check the Java version by typing the following command in the terminal.
[~]# java -version
java version "1.7.0_79"
Java(TM) SE Runtime Environment (build 1.7.0_79-b15)
Java HotSpot(TM) 64-Bit Server VM (build 24.79-b02, mixed mode)
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