centos java

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

 

wget http://download.oracle.com/otn-pub/java/jdk/8u171-b11/512cd62ec5174c3487ac17c61aaa89e8/jdk-8u171-linux-x64.tar.gz

 

mkdir /usr/local/java/

tar -zxvf jdk-8u171-linux-x64.tar.gz -C /usr/local/java/

vim /etc/profile

context:

export JAVA_HOME=/usr/local/java/jdk1.8.0_171
export JRE_HOME=${JAVA_HOME}/jre
export CLASSPATH=.:${JAVA_HOME}/lib:${JRE_HOME}/lib
export PATH=${JAVA_HOME}/bin:$PATH


source /etc/profile

ln -s /usr/local/java/jdk1.8.0_171/bin/java /usr/bin/java

java -version