Centos安装JDK1.8

下载JDK

https://www.oracle.com/java/technologies/downloads/#java8

在/usr/local下创建java目录

mkdir /usr/local/java

将下载好的压缩包解压到/usr/local/java

tar -zxvf jdk-8u371-linux-x64.tar.gz -C /usr/local/java

配置环境变量/etc/profile

export JAVA_HOME=/usr/local/java/jdk1.8.0_371
export CLASSPATH=.:$JAVA_HOME/jre/lib/rt.jar:$JAVA_HOME/lib/dt.jar:$JAVA_HOME/lib/tools.jar
export PATH=$PATH:$JAVA_HOME/bin

重新加载/etc/profile文件

source /etc/profile