CentOS 6.5 Installation jdk1.8

1 , source package preparation:

First download the jdk-8u66-linux-x64.tar.gz on the official website,

Http://www.oracle.com/technetwork/java/javase/downloads/jdk8-downloads-2133151.html

2 , unzip the source package

Create a new Java folder from the terminal in the/usr/local directory, command line:

sudo mkdir /usr/local/java

Then copy the download to the archive into the Java folder, the command line:

Enter the directory where the JDK source package resides

CP jdk-8u66-linux-x64. tar. Gz/usr/local/java

Then go to the Java directory, command line:

Cd/usr/local/java

Unzip the Tarball, command line:

sudo tar zxvf jdk-8u66-linux-x64. tar. gz

You can then delete the compressed package, command line:

sudo RM jdk-8u66-linux-x64. tar. gz

3 , set the JDK environment variable

The global setting method here is to modify Etc/profile, which is a common environment variable for all users.

VI /etc/profile

After opening, add at the end

Java_home=/usr/local/java/jdk1. 8 . 0_66jre_home=/usr/local/java/jdk1. 8. 0_66/Jreclasspath=.: $JAVA _home/lib/dt.jar: $JAVA _home/lib/tools.jar: $JRE _home/LibPATH = $JAVA _home/bin: $PATHexport PATH java_home CLASSPATH

Make environment variables effective

Source/etc/profile

See if your configuration is correct

Echo $JAVA _home Echo $CLASSPATH Echo $PATH

4 , modify the default JDK

If the system already has a different version of Java installed

Update-alternatives--install /usr/bin/java java/usr/java/jdk1. 8  - update-alternatives-install /usr/bin/javac javac/usr/java/jdk1. 8  - Update-alternatives--config javaupdate-alternatives--config Javac

5 , check whether the installation is successful

In the terminal

Java-version

To see if the installation was successful, the success is shown below

" 1.8.0_66 "  1.8. 0_66-25.65-b01, Mixed mode)

Reference:

Http://www.centoscn.com/image-text/install/2014/0827/3585.html

http://my.oschina.net/zhangjie830621/blog/280935

Linux (CentOS) installation jdk (. tar.gz) and configure

CentOS 6.5 Installation jdk1.8