centos7 安装jdk

一、官方jdk地址

https://download.oracle.com/otn-pub/java/jdk/8u191-b12/2787e4a523244c269598db4e85c51e0c/jdk-8u191-linux-x64.tar.gz?AuthParam=1542448153_19847d36b3040941b0188ee81ea964aa

 

 

二、安装wget

yum install wget

 

三、下载jdk

wget https://download.oracle.com/otn-pub/java/jdk/8u191-b12/2787e4a523244c269598db4e85c51e0c/jdk-8u191-linux-x64.tar.gz?AuthParam=1542448153_19847d36b3040941b0188ee81ea964aa

 

四、解压到文件夹、配置环境变量

 4.1 解压

tar -zxvf jdk-8u191-linux-x64.tar.gz 

4.2 配置环境变量

vi /etc/profile

　在文件最后添加

## java
export JAVA_HOME=/usr/local/java/jdk1.8.0_191
export PATH=$JAVA_HOME/bin:$PATH

 4.3 刷新配置文件

source /etc/profile

java -version