JDK installation of CentOS

1. Environmental description

　　System: centos6.7, 2.6.32-573.el6.x86_64; Jdk:jdk1.7.0_80

2. Download the JDK and upload it

Download Jdk-7u80-linux-x64.tar.gz,crt upload to the/opt directory

3. Decompression

TAR-ZXVF jdk-7u80-linux-x64.tar.gz

4. Environment variable Configuration

Vi/etc/profile;

Add the following at the end:

# jdk1.7.0_80 Settings
Java_home=/opt/jdk1.7.0_80
Jre_home= $JAVA _home/jre
Path= $PATH: $JAVA _home/bin: $JRE _home/bin
Classpath=: $JAVA _home/lib/dt.jar: $JAVA _home/lib/tools.jar: $JRE _home/lib
Export Java_home jre_home PATH CLASSPATH

The source/etc/profile is then executed to make the configuration effective.

5. Testing

# java-version
Java Version "1.7.0_80"
Java (TM) SE Runtime Environment (build 1.7.0_80-b15)
Java HotSpot (TM) 64-bit Server VM (build 24.80-b11, Mixed mode)

Test success!

JDK installation of CentOS