统信UOS安装jdk1.8

1.下载压缩包
https://www.oracle.com/java/technologies/javase/javase-jdk8-downloads.html
2.解压压缩包

tar -zxvf jdk-8u221-linux-x64.tar.gz 

3.在/etc/profile中配置环境变量

sudo vim /etc/profile

#将下面内容复制进去
export JAVA_HOME=/data/home/cbbgs/software/jdk1.8.0_221
export JRE_HOME=${JAVA_HOME}/jre
export CLASSPATH=.:${JAVA_HOME}/lib:${JRE_HOME}/lib
export PATH=${JAVA_HOME}/bin:$PATH

4.让文件生效

source /etc/profile