Linux下JDK安装

1.解压jdk

2.重名

cd /home

sudo mv jdk1.8.0_144 jdk1.8

3.环境变量配置

sudo vi /etc/profile

#Jdk setting

JAVA_HOME=/home/jdk1.8

JRE_HOME=/home/jdk1.8/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

4.刷新软连接

source /etc/profile

sudo ln -s /home/jdk1.8/bin/java /sbin/java

java -version