jdk 的安装

jdk包下载

链接: https://pan.baidu.com/s/1wa1TJGtCPKQqeCGDZWaP6g 密码: 8el6

安装及验证

## jdk包上传次目录 /usr/local/software
cd /usr/local/software
tar -zxvf /usr/local/software/jdk-8u212-linux-x64.tar.gz -C /usr/local
cd  /usr/local
mv jdk1.8.0_212  jdk1.8##添加环境变量
vim ~/.bash_profile 
##  PATH=$PATH:$HOME/bin 下
export JAVA_HOME=/usr/local/jdk1.8
export PATH=.:$JAVA_HOME/bin:$PATH
##  export PATH上
source ~/.bash_profile## 验证
java -version