Centos8安装jdk1.8 - zhangxiulin/RuoYi-Vue GitHub Wiki

1.在/user/local目录下新建java文件夹
[root@iZ8vb39159pi4f9hurhnbyZ local]# pwd
/usr/local
[root@iZ8vb39159pi4f9hurhnbyZ local]# mkdir java

2.将jdk拷贝到 /usr/local/java 目录下
[root@iZ8vb39159pi4f9hurhnbyZ java]# ls
jdk-8u191-linux-x64.tar.gz

3.解压：使用tar -zxvf 文件名进行解压
[root@iZ8vb39159pi4f9hurhnbyZ java]# tar -zxvf jdk-8u191-linux-x64.tar.gz
[root@iZ8vb39159pi4f9hurhnbyZ java]# ls
jdk1.8.0_191 jdk-8u191-linux-x64.tar.gz
解压之后得到 jdk1.8.0_191

4.配置环境变量
[root@iZ8vb39159pi4f9hurhnbyZ java]# vi /etc/profile
将以下内容添加进文件，保存并退出
#java
export JAVA_HOME=/usr/local/java/jdk1.8.0_191
export PATH=$JAVA_HOME/bin:$PATH
export CLASSPATH=.:$JAVA_HOME/lib/dt.jar:$JAVA_HOME/lib
source /etc/profile

5.验证
[root@iZ8vb39159pi4f9hurhnbyZ ~]# java -version
java version "1.8.0_191"
Java(TM) SE Runtime Environment (build 1.8.0_191-b12)
Java HotSpot(TM) 64-Bit Server VM (build 25.191-b12, mixed mode)